Studer D-19 MicAD Owners manual

D19 MicAD

8-Channel Mic/Line Preamplifier

with Digital Outputs

Betriebsanleitung

Operating Instructions

MicAD

POWER

MIC
LINE

OVL

-1

-3

-6

-9

-12

-18

-24

-30

-40

-60

12

18

dBu/FS
LINE

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

-40

-60

SEL

6

12

0

18

-6

24

dBu/FS
LINE

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

LINK

-40

-60

SEL SEL SEL

6

12

0

18

-6

24

dBu/FS

2 3

LINE

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

-40

-60

6

0

-6

6

12

18

-6

24

dBu/FS
LINE

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

LINK

-40

-60

12

18

0

24

dBu/FS

4 5

LINE

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

-40

-60

SEL SEL SEL SEL

6

12

0

18

-6

24

dBu/FS
LINE

MIC
LINE
Ø
48V

LINK

6

0

18

-6

6 7

OVL

-1

-3

-6

-9

-12

-18

-24

-30

-40

-60

12

24

dBu/FS
LINE

Prepared and edited by:
STUDER Professional Audio AG
Technical Documentation
Althardstrasse 30
CH-8105 Regensdorf - Switzerland

STUDER is a registered trade mark of STUDER Professional Audio AG, Regensdorf

OVL

-1

-3

-6

MIC

-9

-12

LINE

-18

Ø

-24

48V

-30

-40

-60

6

12

0

18

-6

24 -6

dBu/FS
LINE

MIC/LINE

MIC
LINE

Ø

Ø
48V

48V

LINK

6

STEREO LINK

0

PEAK HOLD SOFT CLIP REMOTE

8

D19 SERIES

HOLD SOFT REM

48

INT

44

WCLK

16DI

VAR

AES

16NS

AUTO

20BIT

MODE SYNC CTRL CH

Copyright by STUDER Professional Audio AG

Printed in Switzerland

Order no. 10.27.3781 (Ed. 0996)

Subject to change

SAFETY / SECURITE / SICHERHEIT

To reduce the risk of electric shock, do not remove covers (or back).
No user-serviceable parts inside. Refer servicing to qualified service
personnel.

Afin de prévenir un choc électrique, ne pas enlever les couvercles (où
l’arrière) de l’appareil. Il ne se trouve à l’intérieur aucune pièce pou­vant être réparée par l’usager.

Um die Gefahr eines elektrischen Schlages zu vermeiden, entfer­nen Sie keine Geräteabdeckungen (oder die Rückwand). Über­lassen Sie Wartung und Reparatur qualifiziertem Fachpersonal.

This symbol is intended to alert the user to presence of uninsulated
“dangerous voltage” within the apparatus that may be of sufficient
magnitude to constitute a risk of electric shock to a person.

Ce symbole indique à l'utilisateur qu'il existent à l'intérieur de l'ap­pareil des “tensions dangereuses”. Ces tensions élevées entrainent
un risque de choc électrique en cas de contact.

Dieses Symbol deutet dem Anwender an, dass im Geräteinnern die
Gefahr der Berührung von “gefährlicher Spannung” besteht. Die
Grösse der Spannung kann zu einem elektrischen Schlag führen.

This symbol is intended to alert the user to the presence of important
instructions for operating and maintenance in the enclosed docu­mentation.

Ce symbole indique à l’utilisateur que la documentation jointe conti­ent d'importantes instructions concernant le fonctionnement et la
maintenance.

Dieses Symbol deutet dem Anwender an, dass die beigelegte Doku­mentation wichtige Hinweise für Betrieb und Wartung enthält.

CAUTION: Lithium battery. Danger of explosion by incorrect handling. Replace

by battery of the same make and type only.

ATTENTION: Pile au lithium. Danger d'explosion en cas de manipulation incorrec-

te. Ne remplacer que par un modèle de même type.

ACHTUNG: Explosionsgefahr bei unsachgemässem Auswechseln der Lithium-

batterie. Nur durch den selben Typ ersetzen.

ADVARSEL: Lithiumbatterei. Eksplosinsfare. Udskinftning ma kun foretages af en

sagkyndig of som beskrevet i servicemanualen (DK).

I

SAFETY / SECURITE / SICHERHEIT

FIRST AID

(in case of electric shock)

1. Separate the person as quickly as

possible from the electric power
source:

• by switching off the equipment

• or by unplugging or disconnecting
the mains cable

• pushing the person away from the
power source by using dry insu­lating material (such as wood or
plastic).

• After having sustained an elec-

tric shock, always consult a
doctor.

WARNING!

DO NOT TOUCH THE PERSON
OR HIS CLOTHING BEFORE
THE POWER IS TURNED OFF,
OTHERWISE YOU STAND THE
RISK OF SUSTAINING AN
ELECTRIC SHOCK AS WELL!

PREMIERS SECOURS

(en cas d'électrocution)

1. Si la personne est dans l'impos-

sibilité de se libérer:

• Couper l'interrupteur principal

• Couper le courant

• Repousser la personne de l'appa­reil à l'aide d'un objet en matière
non conductrice (matière pla­stique ou bois)

• Après une électrocution, toujours

consulter un médecin.

ATTENTION!

NE JAMAIS TOUCHER UNE
PERSONNE QUI EST SOUS
TENSION, SOUS PEINE DE
SUBIR EGALEMENT UNE
ELECTROCUTION.

ERSTE HILFE

(bei Stromunfällen)

1. Bei einem Stromunfall die be-

troffene Person so rasch wie
möglich vom Strom trennen:

• Ausschalten des Gerätes

• Ziehen oder Unterbrechen der
Netzzuleitung

• Betroffene Person mit isoliertem
Material (Holz, Kunststoff) von
der Gefahrenquelle wegstossen

• Nach einem Stromunfall sollte

immer ein Arzt aufgesucht wer­den.

ACHTUNG!

EINE UNTER SPANNUNG STE­HENDE PERSON DARF NICHT
BERÜHRT WERDEN. SIE KÖN­NEN DABEI SELBST ELEKTRI­SIERT WERDEN!

2. If the person is unconscious:

• check the pulse,

• reanimate the person if respiration
is poor,

• lay the body down, turn it to one
side, call for a doctor immed­iately.

2. En cas de perte de connaissance

de la personne électrocutée:

• Controller le pouls

• Si nécessaire, pratiquer la respi­ration artificielle

• Placer l'accidenté sur le flanc et
consulter un médecin.

2. Bei Bewusstlosigkeit des Verun-

fallten:

• Puls kontrollieren,

• bei ausgesetzter Atmung künst­lich beatmen,

• Seitenlagerung des Verunfallten
vornehmen und Arzt verstän­digen.

II

SICHERHEIT / SAFETY

Installation

Vor der Installation des Gerätes müssen die hier aufge­führten und auch die weiter in dieser Anleitung mit
bezeichneten Hinweise gelesen und während der In­stallation und des Betriebes beachtet werden.
Untersuchen Sie das Gerät und sein Zubehör auf allfällige
Transportschäden.
Ein Gerät, das mechanische Beschädigung aufweist oder
in welches Flüssigkeit oder Gegenstände eingedrungen
sind, darf nicht ans Netz angeschlossen oder muss sofort
durch Ziehen des Netzsteckers vom Netz getrennt werden.
Das Öffnen und Instandsetzen des Gerätes darf nur von
Fachpersonal unter Einhaltung der geltenden Vorschriften
durchgeführt werden.

Falls dem Gerät kein konfektioniertes Netzkabel
beiliegt, muss dieses durch eine Fachperson unter
Verwendung der mitgelieferten Kabel-Gerätedose
IEC320/C13 oder IEC320/C19 und unter Berücksichti­gung der einschlägigen, im geweiligen Lande geltenden
Bestimmungen angefertigt werden; siehe unten.
Vor Anschluss des Netzkabels an die Netzsteckdose muss
überprüft werden, ob die Stromversorgungs- und An­schlusswerte des Gerätes (Netzspannung, Netzfrequenz)
innerhalb der erlaubten Toleranzen liegen. Die im Gerät
eingesetzten Sicherungen müssen den am Gerät ange­brachten Angaben entsprechen.
Ein Gerät mit einem dreipoligen Gerätestecker (Gerät der
Schutzklasse I) muss an eine dreipolige Netzsteckdose
angeschlossen und somit das Gerätegehäuse mit dem
Schutzleiter der Netzinstallation verbunden werden (Für
Dänemark gelten Starkstrombestimmungen, Abschnitt

107).

Installation

Before you install the equipment, please read and adhere
to the following recommendations and all sections of these
instructions marked with .

Check the equipment for any transport damage.

A unit that is mechanically damaged or which has been
penetrated by liquids or foreign objects must not be con­nected to the AC power outlet or must be immediately
disconnected by unplugging the power cable. Repairs must
only be performed by trained personnel in accordance with
the applicable regulations.

Should the equipment be delivered without a matching
mains cable, the latter has to be prepared by a trained
person using the attached female plug (IEC320/C13 or
IEC320/C19) with respect to the applicable regulations in
your country - see diagram below.

Before connecting the equipment to the AC power outlet,
check that the local line voltage matches the equipment
rating (voltage, frequency) within the admissible toleran­ce. The equipment fuses must be rated in accordance with
the specifications on the equipment.

Equipment supplied with a 3-pole appliance inlet (equip­ment conforming to protection class I) must be connected
to a 3-pole AC power outlet so that the equipment cabinet
is connected to the protective earth conductor of the AC
supply (for Denmark the Heavy Current Regulations,
Section 107, are applicable).

Female plug (IEC320), view from contact side:

L live; brown National American Standard: Black
N neutral; blue White
PE protective earth; green and yellow green

Connecteur femelle (IEC320), vue de la face aux contacts:

L phase; brun Standard national américain: Noir
N neutre; bleu Blanc
PE terre protective; vert et jaune Vert

Ansicht auf Steckkontakte der Kabel-Gerätesteckdose (IEC320):

L Phase; braun USA-Standard: Schwarz
N Nulleiter; blau Weiss
PE Schutzleiter; gelb/grün grün

III

SICHERHEIT / SAFETY

Zugentlastung für den Netzanschluss

Zum Verankern von Steckverbindungen ohne mechanische
Verriegelung (z.B. IEC-Kaltgerätedosen) empfehlen wir
die folgende Anordnung:

Mains connector strain relief

For anchoring connectors without a mechanical lock (e.g.
IEC mains connectors), we recommend the following ar­rangement:

Vorgehen: Der mitgelieferte Kabelhalter ist selbstklebend.
Bitte beachten Sie bei der Montage die folgenden Regeln:

1. Der Untergrund muss sauber, trocken und frei von Fett,

Öl und anderen Verunreinigungen sein. Temperaturbe­reich für optimale Verklebung: 20...40° C.

2. Entfernen Sie die Schutzfolie auf der Rückseite des

Kabelhalters und bringen sie ihn mit kräftigem Druck
an der gewünschten Stelle an. Lassen sie ihn unbelastet
so lange wie möglich ruhen – die maximale Klebekraft
ist erst nach rund 24 Stunden erreicht.

3. Die Stabilität des Kabelhalters wird erhöht, wenn Sie

ihn zusätzlich verschrauben. Zu diesem Zweck liegen
ihm eine selbstschneidende Schraube sowie eine M4­Schraube mit Mutter bei.

4. Legen Sie das Kabel gemäss Figur in den Halter ein

und pressen Sie die Klemme kräftig auf, bis das Kabel
fixiert ist.

Procedure: The cable clamp shipped with your unit is
auto-adhesive. If mounting, please follow the rules below:

1. The surface to be adhered to must be clean, dry, and

free from grease, oil or other contaminants. Best appli­cation temperature range is 20...40° C.

2. Remove the plastic protective backing from the rear

side of the clamp and apply it firmly to the surface at
the desired position. Allow as much time as possible
for curing. The bond continues to develop for as long
as 24 hours.

3. For improved stability, the clamp can be fixed with a

screw. For this purpose, a self-tapping screw and an
M4 bolt and nut are included.

4. Place the cable into the clamp as shown in the illustr a-

tion above and firmly press down the internal top cover
until the cable is fixed.

IV

UMGEBUNGSBEDINGUNGEN / AMBIENT CONDITIONS

Lufttemperatur und Feuchtigkeit

Allgemein

Die Betriebstauglichkeit des Gerätes oder Systems ist unter
folgenden Umgebungsbedingungen gewährleistet:

EN 60721-3-3, Set IE32, Wert 3K3.

Diese Norm umfasst einen umfassenden Katalog von Parame­tern; die wichtigsten davon sind: Umgebungstemperatur
+5...+40 °C; rel. Luftfeuchtigkeit 5...85% – d.h. weder Konden­sation noch Eisbildung; abs. Luftfeuchtigkeit 1...25 g/m³; Tem­peratur-Änderungsrate < 0,5 °C/min. In den folgenden Ab­schnitten wird darauf näher eingegangen.
Unter den genannten Bedingungen startet und arbeitet das
Gerät oder System problemlos. Ausserhalb dieser Spezifikatio­nen möglicherweise auftretende Probleme sind in den folgenden
Abschnitten beschrieben.

Umgebungstemperatur

Geräte und Systeme von Studer sind allgemein für einen Um­gebungstemperaturbereich (d.h. Temperatur der eintretenden
Kühlluft) von +5...+40 °C ausgelegt. Bei Installation in einem
Schrank muss der vorgesehene Luftdurchsatz und dadurch die
Konvektionskühlung gewährleistet sein. Folgende Tatsachen
sind dabei zu berücksichtigen:

1. Die zulässige Umgebungstemperatur für den Betrieb der
Halbleiter-Bauelemente beträgt 0 °C bis +70 °C (commercial
temperature range for operation).

2. Der Luftdurchsatz der Anlage muss gewährleisten, dass die
austretende Kühlluft ständig kühler ist als 70 °C.

3. Die mittlere Erwärmung der Kühlluft soll 20 K betragen,
die maximale Erwärmung an den heissen Komponenten darf
somit um weitere 10 K höher liegen.

4. Zum Abführen einer Verlustleistung von 1 kW bei dieser
zulässigen mittleren Erwärmung ist eine Luftmenge von
2,65 m³/min notwendig.
Beispiel: Für ein Rack mit einer Leistungsaufnahme P = 800 W
ist eine Kühlluftmenge von 0,8 * 2,65 m³/min nötig, entspre­chend 2,12 m³/min.

5. Soll die Kühlfunktion der Anlage (z.B. auch bei Lüfter­Ausfall oder Bestrahlung durch Spotlampen) überwacht wer­den, so ist die Temperatur der Abluft unmittelbar oberhalb der
Einschübe an mehreren Stellen im Rack zu messen; die An­sprechtemperatur der Sensoren soll 65 bis 70 °C betragen.

Air temperature and humidity

General

Normal operation of the unit or system is warranted under the
following ambient conditions defined by:

EN 60721-3-3, set IE32, value 3K3.

This standard consists of an extensive catalogue of parameters,
the most important of which are: ambient temperature +5...
+40° C, relative humidity 5...85% – i.e. no formation of con­densation or ice; absolute humidity 1...25 g/m³; rate of tem­perature change < 0,5 °C/min. These parameters are dealt with
in the following paragraphs.
Under these conditions the unit or system starts and works
without any problem. Beyond these specifications, possible
problems are described in the following sections.

Ambient temperature

Units and systems by Studer are generally designed for an am­bient temperature range (i.e. temperature of the incoming air) of
+5...+40 °C. When rack mounting the units, the intended air
flow and herewith adequate cooling must be provided. The
following facts must be considered:

1. The admissible ambient temperature range for operation of
the semiconductor components is 0 °C to +70 °C (commercial
temperature range for operation).

2. The air flow through the installation must provide that the
outgoing air is always cooler than 70 °C.

3. Average heat increase of the cooling air shall be 20 K, al­lowing for an additional maximum 10 K increase at the hot
components.

4. In order to dissipate 1 kW with this admissible average heat
increase, an air flow of 2,65 m³/min is required.

Example: A rack dissipating P = 800 W requires an air flow of
0,8 * 2,65 m³/min which corresponds to 2,12 m³/min.

5. If the cooling function of the installation must be monitored
(e.g. for fan failure or illumination with spot lamps), the outgo­ing air temperature must be measured directly above the mod­ules at several places within the rack. The trigger temperature of
the sensors should be 65 to 70 °C.

Reif und Tau

Das unversiegelte System (Steckerpartien, Halbleiteranschlüs­se) verträgt zwar leichte Eisbildung (Reif). Mit blossem Auge
sichtbare Betauung führt jedoch bereits zu Funktionsstörungen.
In der Praxis kann mit einem zuverlässigen Betrieb der Geräte
bereits im Temperaturbereich ab –15 °C gerechnet werden,
wenn für die Inbetriebnahme des kalten Systems die folgende
allgemeine Regel beachtet wird:
Wird die Luft im System abgekühlt, so steigt ihre relative
Feuchtigkeit an. Erreicht diese 100%, kommt es zu Nieder­schlag, meist in der Grenzschicht zwischen der Luft und einer
kühleren Oberfläche, und somit zur Bildung von Eis oder Tau
an empfindlichen Systemstellen (Kontakte, IC-Anschlüsse etc.).
Ein störungsfreier Betrieb mit interner Betauung, unabhängig
von der Temperatur, ist nicht gewährleistet.

Frost and dew

The unsealed system parts (connector areas and semiconductor
pins) allow for a minute formation of ice or frost. However,
formation of dew visible with the naked eye will already lead to
malfunctions. In practice, reliable operation can be expected in
a temperature range above –15 °C, if the following general rule
is considered for putting the cold system into operation:

If the air within the system is cooled down, the relative humid­ity rises. If it reaches 100%, condensation will arise, usually in
the boundary layer between the air and a cooler surface, to­gether with formation of ice or dew at sensitive areas of the
system (contacts, IC pins, etc.). Once internal condensation
occurs, troublefree operation cannot be guaranteed, independent
of temperature.

V

UMGEBUNGSBEDINGUNGEN / AMBIENT CONDITIONS

Vor der Inbetriebnahme muss das System auf allfällige interne
Betauung oder Eisbildung überprüft werden. Nur bei sehr
leichter Eisbildung kann mit direkter Verdunstung (Sublimati­on) gerechnet werden; andernfalls muss das System im abge­schalteten Zustand gewärmt und getrocknet werden.
Das System ohne feststellbare interne Eisbildung oder Betau­ung soll möglichst homogen (und somit langsam) mit eigener
Wärmeleistung aufgewärmt werden; die Lufttemperatur der
Umgebung soll ständig etwas tiefer als diejenige der Syste­mabluft sein.
Ist es unumgänglich, das abgekühlte System sofort in warmer
Umgebungsluft zu betreiben, so muss diese entfeuchtet sein.
Die absolute Luftfeuchtigkeit muss dabei so tief sein, dass die
relative Feuchtigkeit, bezogen auf die kälteste Oberfläche im
System, immer unterhalb 100% bleibt.
Es ist dafür zu sorgen, dass beim Abschalten des Systems die
eingeschlossene Luft möglichst trocken ist (d.h. vor dem Ab­schalten im Winter den Raum mit kalter, trockener Luft belüf­ten und feuchte Gegenstände, z.B. Kleider, entfernen).
Die Zusammenhänge sind im folgenden Klimatogramm er­sichtlich. Zum kontrollierten Verfahren gehören Thermometer
und Hygrometer sowie ein Thermometer innerhalb des Systems.
Beispiel 1: Ein Ü-Wagen mit einer Innentemperatur von 20 °C
und 40% relativer Luftfeuchtigkeit wird am Abend abgeschal­tet. Sinkt die Temperatur unter +5 °C, bildet sich Tau oder Eis.
Beispiel 2: Ein Ü-Wagen wird morgens mit 20 °C warmer Luft
von 40% relativer Luftfeuchtigkeit aufgewärmt. Auf Teilen, die
kälter als +5 °C sind, bildet sich Tau oder Eis.

Before putting into operation, the system must be checked for
internal formation of condensation or ice. Only with a minute
formation of ice, direct evaporation (sublimation) may be ex­pected; otherwise the system must be heated and dried while
switched off.
A system without visible internal formation of ice or condensa­tion should be heated up with its own heat dissipation, as ho­mogeneously (and subsequently as slow) as possible; the ambi­ent temperature should then always be lower than the outgoing
air.
If it is absolutely necessary to operate the system immediately
within warm ambient air, this air must be dehydrated. In such a
case, the absolute humidity must be so low that the relative
humidity, related to the coldest system surface, always remains
below 100%.
Ensure that the enclosed air is as dry as possible when powe­ring off (i.e. before switching off in winter, aerate the room with
cold, dry air, and remove humid objects as clothes from the
room).
These relationships are visible from the following climatogram.
For a controlled procedure, thermometer and hygrometer as well
as a thermometer within the system will be required.

Example 1: An OB-van having an internal temperature of
20 °C and rel. humidity of 40% is switched off in the evening.
If temperature falls below +5 °C, dew or ice will be forming.
Example 2: An OB-van is heated up in the morning with air of
20 °C and a rel. humidity of 40%. On all parts being cooler than
+5 °C, dew or ice will be forming.

VI

WARTUNG / MAINTENANCE

Wartung und Reparatur

Durch Entfernen von Gehäuseteilen, Abschirmungen etc.
werden stromführende Teile freigelegt. Deshalb müssen
u.a. die folgenden Grundsätze beachtet werden:
Eingriffe in das Gerät dürfen nur von Fachpersonal unter
Einhaltung der geltenden Vorschriften vorgenommen wer­den.
Vor Entfernen von Gehäuseteilen muss das Gerät ausge­schaltet und vom Netz getrennt werden.
Bei geöffnetem, vom Netz getrenntem Gerät dürfen Teile
mit gefährlichen Ladungen (z. B. Kondensatoren, Bildröh­ren) erst nach kontrollierter Entladung, heiße Bauteile
(Leistungshalbleiter, Kühlkörper etc.) erst nach deren
Abkühlen berührt werden.

Bei Wartungsarbeiten am geöffneten, unter Netzspannung
stehenden Gerät dürfen blanke Schaltungsteile und metal­lene Halbleitergehäuse weder direkt noch mit nichtiso­liertem Werkzeug berührt werden.
Zusätzliche Gefahren bestehen bei unsachgemässer Hand­habung besonderer Komponenten:

• Explosionsgefahr bei Lithium zellen, Elektrolyt-Kon­densatoren und Leistungshalbleitern

• Implosionsgefahr bei evakuierten Anzeigeeinheiten

• Strahlungsgefahr bei Lasereinheiten (nichtioni sierend),
Bildröhren (ionisierend)

• Verätzungsgefahr bei Anzeigeeinheiten (LCD) und
Komponenten mit flüssigem Elektrolyt.

Solche Komponenten dürfen nur von ausgebildetem
Fachpersonal mit den vorgeschriebenen Schutzmitteln
(u.a. Schutzbrille, Handschuhe) gehandhabt werden.

Maintenance and Repair

The removal of housing parts, shields, etc. exposes energi­zed parts. For this reason the following precautions should
be observed:
Maintenance should only be performed by trained person­nel in accordance with the applicable regulations.
The equipment should be switched off and disconnected
from the AC power outlet before any housing parts are
removed.
Even if the equipment is disconnected from the power,
parts with hazardous charges (e.g. capacitors, picture
tubes) must not be touched until they have been properly
discharged. Touch hot components (power semicon­ductors, heat sinks, etc.) only when cooled off.

If maintenance is performed on a unit that is opened and
switched on, no uninsulated circuit components and metal­lic semiconductor housings must be touched neither with
your bare hands nor with uninsulated tools.
Certain components pose additional hazards:

• Explosion hazard from lithium batteries, electrolytic
capacitors and power semiconductors

• Implosion hazard from evacuated display units

• Radiation hazard from laser units (non-ionizing), pictu­re tubes (ionizing)

• Caustic effect of display units (LCD) and such comp o­nents containig liquid electrolyte.

Such components should only be handled by trained
personnel who are properly protected (e.g. safety
goggles, gloves).

VII

WARTUNG / MAINTENANCE

Elektrostatische Entladung (ESD)
bei Wartung und Reparatur

ATTENTION:

ATTENTION:

ACHTUNG:

Viele ICs und andere Halbleiter sind empfindlich gegen
elektrostatische Entladung (ESD). Unfachgerechte Be­handlung von Baugruppen mit solchen Komponenten bei
Wartung und Reparatur kann deren Lebensdauer drastisch
vermindern.
Bei der Handhabung der ESD-empfindlichen Kompo­nenten sind u.a. folgende Regeln zu beachten:

• ESD-empfindliche Komponenten dürfen aus schliesslich
in dafür bestimmten und bezeichneten Verpackungen
gelagert und transportiert werden.

• Unverpackte, ESD-empfindliche Komponenten dürfen
nur in dafür eingerichteten Schutzzonen (EPA, z.B.
Gebiet für Feldservice, Reparatur- oder Serviceplatz)
gehandhabt und nur von Personen berührt werden, die
durch ein Handgelenkband mit Seriewiderstand mit dem
Massepotential des Reparatur- oder Serviceplatzes ver­bunden sind. Das gewartete Gerät wie auch Werkzeug,
Hilfsmittel, EPA-taugliche (elektrisch halbleitende)
Arbeits-, Ablage- und Bodenmatten müssen ebenfalls
mit diesem Potential verbunden sein.

• Die Anschlüsse der ESD-empfindlichen Komponenten
dürfen unkontrolliert weder mit elektrostatisch auflad­baren (Gefahr von Spannungsdurchschlag), noch mit
metallischen Oberflächen (Schockentladungsgefahr) in
Berührung kommen.

• Um undefinierte transiente Beanspruchung der Kompo­nenten und deren eventuelle Beschädigung durch un­erlaubte Spannung oder Ausgleichsströme zu ver­meiden, dürfen elektrische Verbindungen nur am abge­schalteten Gerät und nach dem Abbau allfälliger Kon­densatorladungen hergestellt oder getrennt werden.

Electrostatic Discharge (ESD)
during Maintenance and Repair

Observe precautions for handling devices sensitive to
electrostatic discharge!

Respecter les précautions d’usage concernant la mani­pulation de composants sensibles à l’électricité statique!

Vorsichtsmassnahmen bei Handhabung elektrostatisch
entladungsgefährdeter Bauelemente beachten!

Many ICs and semiconductors are sensitive to electrostatic
discharge (ESD). The life of components containing such
elements can be drastically reduced by improper handling
during maintenance and repair work.

Please observe the following rules when handling ESD
sensitive components:

• ESD sensitive components should only be stored and
transported in the packing material specifically provi­ded for this purpose.

• Unpacked ESD sensitive components should only be
handled in ESD protected areas (EPA, e.g. area for
field service, repair or service bench) and only be tou­ched by persons who wear a wristlet that is connected
to the ground potential of the repair or service bench by
a series resistor. The equipment to be repaired or ser­viced and all tools, aids, as well as electrically semi­conducting work, storage and floor mats should also be
connected to this ground potential.

• The terminals of ESD sensitive components must not
come in uncontrolled contact with electrostatically
chargeable (voltage puncture) or metallic surfaces
(discharge shock hazard).

• To prevent undefined transient stress of the components
and possible damage due to inadmissible voltages or
compensation currents, electrical connections should
only be established or separated when the equipment is
switched off and after any capacitor charges have de­cayed.

VIII

WARTUNG / MAINTENANCE

SMD-Bauelemente

Der Austausch von SMD-Bauelementen ist ausschliesslich
geübten Fachleuten vorbehalten. Für verwüstete Platinen
können keine Ersatzansprüche geltend gemacht werden.
Beispiele für korrekte und falsche SMD-Lötverbindungen
in der Abbildung weiter unten.

Bei Studer werden keine handelsüblichen SMD-Teile
bewirtschaftet. Für Reparaturen sind die notwendigen
Bauteile lokal zu beschaffen. Die Spezifikationen von
Spezialbauteilen finden Sie in der Serviceanleitung.

SMD Components

SMDs should only be replaced by skilled specialists. No
warranty claims will be accepted for circuit boards that
have been ruined. Proper and improper SMD soldering
joints are depicted below.

Studer does not keep any commercially available SMDs in
stock. For repair the corresponding devices should be
purchased locally. The specifications of special compo­nents can be found in the service manual.

IX

EMV / EMC

Störstrahlung und Störfestigkeit

Das Gerät entspricht den Schutzanforderungen auf dem
Gebiet elektromagnetischer Phänomene, wie u.a. in den
Richtlinien 89/336/EWG und FCC, Part 15, aufgeführt:

1. Vom Gerät erzeugte elektromagnetische Strahlung ist
soweit begrenzt, dass bestimmungsgemässer Betrieb
anderer Geräte und Systeme möglich ist.

2. Das Gerät weist eine angemessene Festigkeit gegen
elektromagnetische Störungen auf, so dass sein bestim­mungsgemässer Betrieb möglich ist.

Das Gerät wurde getestet und erfüllt die Bedingungen der
im Kapitel „Technische Daten“ aufgeführten EMV­Standards. Die Limiten dieser Standards gewährleisten mit
angemessener Wahrscheinlichkeit sowohl den Schutz der
Umgebung wie auch entsprechende Störfestigkeit des
Gerätes. Absolute Garantie, dass keine unerlaubte elek­tromagnetische Beeinträchtigung während des Betriebes
entsteht, ist jedoch nicht gegeben.
Um die Wahrscheinlichkeit solcher Beeinträchtigung
weitgehend auszuschliessen, sind u.a. folgende Mass­nahmen zu beachten:

• Installieren Sie das Gerät gemäss den Angaben in der
Betriebsanleitung, und verwenden Sie das mitgelieferte
Zubehör.

• Verwenden Sie im System und in der Umgebung, in
denen das Gerät eingesetzt ist, nur Kom ponenten (An­lagen, Geräte), die ihrerseits die Anforderungen der
obenerwähnten Standards erfüllen.

• Sehen Sie ein Erdungskonzept des Systems vor, das
sowohl die Sicherheitsanforderungen (die Erdung der
Geräte gemäss Schutzklasse I mit einem Schutzleiter
muss gewährleistet sein), wie auch die EMV-Belange
berücksichtigt. Bei der Entscheidung zwischen stern­oder flächenförmiger bzw. kombinierter Erdung sind
Vor- und Nachteile gegeneinander abzuwägen.

• Benutzen Sie abgeschirmte Kabel, wo vorgesehen.
Achten Sie auf einwandfreie, grossflächige, korrosions­beständige Verbindung der Abschirmung zum entspre­chenden Steckeranschluss und dessen Gehäuse. Beacht­en Sie, dass eine nur an einem Ende angeschlossene
Kabelabschirmung als Sende- bzw. Empfangsantenne
wirken kann (z.B. bei wirksamer Kabellänge von 5 m
oberhalb von 10 MHz), und dass die Flanken digitaler
Kommunikationssignale hochfrequente Aussendungen
verursachen (z.B. LS- oder HC-Logik bis 30 MHz).

• Vermeiden Sie Bildung von Masseschleifen oder ver­mindern Sie deren unerwünschte Auswirkung, indem
Sie deren Fläche möglichst klein halten und den darin
fliessenden Strom durch Einfügen einer Impedanz (z.B.
Gleichtaktdrossel) reduzieren.

Electromagnetic Compatibility

The equipment conforms to the protection requirements
relevant to electromagnetic phenomena that are listed in
the guidelines 89/336/EC and FCC, part 15.

1. The electromagnetic interference generated by the
equipment is limited in such a way that other equipment
and systems can be operated normally.

2. The equipment is adequately protected against electro­magnetic interference so that it can operate correctly.

The unit has been tested and conforms to the EMC stan­dards applicable to residential, commercial and light indu­stry, as listed in the section „Technical Data“. The limits
of these standards reasonably ensure protection of the
environment and corresponding noise immunity of the
equipment. However, it is not absolutely warranted that
the equipment will not be adversely affected by electro­magnetic interference during operation.

To minimize the probability of electromagnetic interfer­ence as far as possible, the following recommendations
should be followed:

• Install the equipment in accordance with the operating
instructions. Use the supplied accessories.

• In the system and in the vicinity where the equipment is
installed, use only components (systems, equipment)
that also fulfill the above EMC standards.

• Use a system grounding concept that satisfies the safety
requirements (protection class I equipment must be
connected with a protective ground conductor) that also
takes into consideration the EMC requirements. When
deciding between radial, surface or combined groun­ding, the advantages and disadvantages should be ca­refully evaluated in each case.

• Use shielded cables where shielding is specified. The
connection of the shield to the corresponding connector
terminal or housing should have a large surface and be
corrosion-proof. Please note that a cable shield con­nected only single-ended can act as a transmitting or re­ceiving antenna (e.g. with an effective cable length of
5 m, the frequency is above 10 MHz) and that the edges
of the digital communication signals cause high­frequency radiation (e.g. LS or HC logic up to
30 MHz).

• Avoid ground loops or reduce their adverse effects by
keeping the loop surface as small as possible, and redu­ce the noise current flowing through the loop by inser­ting an additional impedance (e.g. common-mode rejec­tion choke).

X

Class A Equipment - FCC Notice

Konformitätserklärungen / Declarations of conformity

This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide a
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residen-

CE-Konformitätserklärung

Der Hersteller,
Studer Professional Audio AG,

CH-8105 Regensdorf,
erklärt in eigener Verantwortung, dass die Produkte

Studer D19 MicAD, 8-Channel Mic/Line Preamplifier

with Digital Outputs (ab Serie-Nr. 101),

Studer D19 MicAD Stage, Remote Controlled 8-Channel

Mic/Line Preamplifier with Digital Outputs (ab Serie­Nr. 1001),

Studer D19 MicAD Master, Remote Control (ab Serie-

Nr. 1001),

auf die sich diese Erklärung bezieht, entsprechend den
Bestimmungen der EU-Richtlinien und Ergänzungen

• Elektromagnetische Verträglichkeit (EMV):
89/336/EWG + 92/31/EWG + 93/68/EWG

• Niederspannung:
73/23/EWG + 93/68/EWG

mit den folgenden Normen und normativen Dokumenten
übereinstimmen:

• Sicherheit:
Schutzklasse 1, EN 60950:1992 + A1/A2:1993

• EMV:
EN 50081-1:1992, EN 50082:1992.

Regensdorf, 6. Februar 1996

tial area is likely to cause harmful interference in which
case the user will be required to correct the interference at
his own expense.

Caution:
Any changes or modifications not expressly approved by
the manufacturer could void the user's authority to operate
the equipment. Also refer to relevant information in this
manual.

CE Declaration of Conformity

The manufacturer,
Studer Professional Audio AG,

CH-8105 Regensdorf,
declares under his sole responsibility that the products

Studer D19 MicAD, 8-Channel Mic/Line Preamplifier

with Digital Outputs (from serial no. 101),

Studer D19 MicAD Stage, Remote Controlled 8-Channel

Mic/Line Preamplifier with Digital Outputs (from se­rial no. 1001),

Studer D19 MicAD Master, Remote Control (from serial

no. 1001),

to which this declaration relates, according to following
regulations of EU directives and amendments

• Electromagnetic Compatibility (EMC):
89/336/EEC + 92/31/EEC + 93/68/EEC

• Low Voltage (LVD):
73/23/EEC + 93/68/EEC

are in conformity with the following standards or other
normative documents:

• Safety:
Class 1, EN 60950:1992 + A1/A2:1993

• EMC:
EN 50081-1:1992, EN 50082:1992.

Regensdorf, February 6, 1996

B. Hochstrasser, Geschäftsleiter

P. Fiala, Leiter QS

B. Hochstrasser, Managing director

P. Fiala, Manager QA

XI

Studer D19 MicAD

Corrigendum

Section “Technical specifications”

Please note the following correction in the tech­nical specifications:

Crosstalk:

Line-Line/Mic-Mic
< –96 dB @ 1 kHz; < –92 dB @ 20 Hz...20 kHz

Kapitel “Technische Daten”

Bitte beachten Sie die folgende Korrektur der
technischen Daten:

Übersprechen:

Line-Line/Mic-Mic
< –96 dB bei 1 kHz; < –92 dB, 20 Hz...20 kHz

NEUE FUNKTION FÜR MICAD MASTER

Zum Begrenzen der Anzahl der Fernsteuerkanäle (d.h. der Anzahl der
durch den MicAD MASTER gesteuerten Geräte) wurde eine neue Funk­tion implementiert. Bisher mussten zur Wahl des gewünschten Gerätes
immer alle 16 Adressen «durchgeblättert» werden, auch wenn nur zwei
oder drei Geräte am MicAD MASTER angeschlossen waren.

Zum Begrenzen der Anzahl der Fernsteuerkanäle gehen Sie wie folgt
vor:

• CTRL CH-Taste so oft wie nötig drücken, damit im Display die ge­wünschte Anzahl ferngesteuerter Einheiten angezeigt wird.

• MODE-Taste drücken und festhalten, anschliessend SYNC-Taste drük­ken und festhalten, dann CTRL CH-Taste drücken.
Danach wird beim Blättern mit der Taste CTRL CH nur bis zur gewähl­ten Fernsteuerkanal-Nummer gezählt und anschliessend wieder bei 1
begonnen.

Ausschalten der Funktion:

• MODE-Taste drücken und festhalten, anschliessend SYNC-Taste drük­ken und festhalten, dann REMOTE-Taste drücken.
Nun können wieder alle Fernsteuerkanäle mit der CTRL CH-Taste ge­wählt werden.

D19 MicAD

NEW FUNCTION FOR MICAD MASTER

For limiting the number of remote control channels (i.e. the number of
units controlled by the MicAD MASTER), a new function has been
created. Up to now, all 16 addresses had to be toggled through when
selecting a particular unit for control, even if only two or three units
were connected to the MicAD MASTER.

To limit the number of remote control channels, proceed as follows:

• Press the CTRL CH key as many times as required until the display
indicates the desired number of units.

• Press and hold the MODE key, then press and hold the SYNC key, then
press the CTRL CH key.
After that, the display will count up only to the number entered before
when toggling with the CTRL CH key, and then restarts with 1.

To cancel this function:

• Press and hold the MODE key, then press and hold the SYNC key, then
press the REMOTE key.
After that, all remote control channels can be accessed again when
toggling with the CTRL CH key.

Edition:

17.02.98

Addendum

19.02.01

CONTENTS

D19 MicAD

1 Come in! ........................................................................E1/1

1.1 Basic information ......................................................... E1/1

1.2 General ....................................................................... E1/2

1.2.1 Scope of delivery ..................................................... E1/2

1.2.2 D19 MicAD versions................................................ E1/2

1.2.3 Options ...................................................................E1/2

1.2.4 Accessories ..............................................................E1/3

1.3 Safety and connections ................................................ E1/4

1.3.1 Utilization for the purpose intended .........................E1/4

1.3.2 Power connection ....................................................E1/4

1.3.3 Connector panel ...................................................... E1/5

1.4 Technical specifications ............................................... E1/6

1.4.1 Audio specifications ................................................. E1/6

1.4.2 Peripheral connections ............................................. E1/7

1.4.3 Power supply ........................................................... E1/7

1.4.4 Primary fuse ............................................................. E1/7

1.4.5 Operating conditions ............................................... E1/7

1.4.6 Safety and EMC standards ........................................ E1/7

1.4.7 Mechanical data MicAD/MicAD STAGE................... E1/8

1.4.8 Mechanical data MicAD MASTER ............................ E1/8

2 Operation ......................................................................E2/1

2.1 Operating elements ...................................................... E2/1

2.2 Audio and sync connections, pin assignments ............. E2/5

2.2.1 Mic and line inputs ..................................................E2/5

2.2.2 Digital outputs ......................................................... E2/5

2.2.3 External AES/EBU synchronization ........................... E2/5

2.2.4 Word clock in/out .................................................... E2/5

2.2.5 Using the TDIF-1 8-channel interface ....................... E2/6

2.2.6 Using the optical ADAT 8-channel interface............. E2/7

2.3 Application ideas and examples .................................. E2/8

2.3.1 Wiring for external synchronization ....................... E2/10

2.4 Remote control .......................................................... E2/11

2.4.1 General, hardware .................................................E2/11

2.4.2 RS422 .................................................................... E2/11

2.4.3 MIDI ...................................................................... E2/13

2.4.4 Programming ......................................................... E2/15

2.4.4.1 Recognized MIDI messages ..................... E2/15

2.4.4.2 Control change ....................................... E2/15

2.4.4.3 System exclusive ..................................... E2/16

2.4.4.4 Transmitted MIDI messages ..................... E2/17

2.4.4.5 MicAD internal system status field........... E2/17

Edi tion:

Contents E 0/1

19.02.01

D19 MicAD

3 Additional information ...................................................E3/1

3.1 What the heck is Noise Shaping? ................................. E3/1

3.2 Block diagrams ............................................................ E3/3

3.2.1 Global audio block diagram ..................................... E3/3

3.2.2 Synchronization block diagram ................................E3/3

4 Appendix: MIDI protocol ................................. yellow pages

E 0/2 Contents

“ADAT” is a trade mark of Alesis Corporation.
“TDIF-1” is a trade mark of Tascam Corporation.

Edi tion:

19.02.01

1 COME IN!

1.1 Basic information

D19 MicAD

We are happy to welcome you in the steadily growing circle of the
Studer D19 MicAD's users, and we felicitate you on your selection.
Thanks to Studer's experience collected during more than 40 years of
business in the professional audio products field, you may expect that
the performance of your new unit will fulfill your highest demands.

The MicAD is a simple, reliable, selfcontained eight-channel micro­phone preamplifier with digital outputs.

MicAD combines the renowned low-distortion Studer transformer-bal­anced microphone inputs with high-performance 20 bit A/D converters.

For optimum sound quality even in 16 bit mode, DSP dithering and noise
shaping are used instead of simple truncating.

MicAD features AES/EBU outputs plus a choice of TDIF-1 or optical
ADAT format outputs.

Remote control is possible via the dedicated MicAD Master or via exter­nal equipment using MIDI-RS 422 or MIDI.

Edi tion:

Come in! E 1/1

19.02.01

D19 MicAD

1.2 General

1.2.1 Scope of delivery

The D19 MicAD is supplied with a power cord (or an IEC 320/C13
socket), a 2.5 mm hex-socket screwdriver, and this operating manual.

1.2.2 D19 MicAD versions Order No.

D19 MicAD Self-contained 8-channel Mic/Line preamplifier 66.650.00000

with digital outputs

• 8 high-quality Mic/Line preamps with separate

XLR inputs.

• 4 AES/EBU outputs on XLR.

• 20-bit high-performance A/D converters.

• Switchable DSP Dithering and Noise Shaping.

• Local or remote control of individual GAIN,

MIC/LINE, Phase, 48 V Phantom Power and
High-pass filter settings.

• Local or remote control of global Soft-clip,

Mode, Sync, and Sampling Frequency settings.

• Built-in 100...240 V power supply.

D19 MicAD STAGE Remote controlled 8-channel Mic/Line preampli- 66.651.00000

fier with digital outputs

as D19 MicAD (above), except:

• Remote control for all functions of the unit.

• Front panel controls: Only Power switch,

CTRL CH and REMOTE keys.

D19 MicAD MASTER Dedicated remote controller for up to 16 MicAD 66.653.00000

units.

1.2.3 Options Order No.

Digital Audio Output Options:

ADAT Interface: 8-channel optical digital audio output card 1.650.050.20

for connecting with the ADAT and compatible
8-channel recorders or other equipment featuring
the ADAT standard connectors.

TDIF-1 Interface: 8-channel digital audio output card 1.650.052.20

for connecting with the DA-88 and compatible
8-channel recorders or other equipment featuring
the TDIF-1 standard connectors.

E 1/2 Come in!

Edi tion:

D19 MicAD

19.02.01

Control Port Options:

MIDI Merge Module: For connection with MIDI compatible controllers 1.650.060.20

featuring MIDI In, Out, Thru, Return connectors
for simple remote control daisy-chaining of up to
16 MicAD units.

MIDI RS422 Module: For connection with the MicAD MASTER or other 1.650.065.20

RS422 compatible controllers

featuring In/Out and Thru/Return connectors for
simple remote control daisy-chaining of up to
16 MicAD units.

1.2.4 Accessories Order No.

Accessories/Spares: Kit, consisting of: 20.020.302.48

• Mating XLR connectors (10 pcs. male,

4 pcs. female)

• Mic/Line Gain knobs (2 pcs. each)

• Rack mounting screws with washers

(4 pcs. each)

• Identification strip (1 pc.)

• 9-pin D-Type connectors (2 pcs.)

Interface cables: ADAT/Alesis optical interface cable, 10.325.010.00

length 1.0 m

ADAT/Alesis optical interface cable, 10.325.011.00
length 5.0 m

TDIF-1/Tascam interface cable F-10.025.031.08

“PW 88D”, length 1.0 m

TDIF-1/Tascam interface cable F-10.025.031.09

“PW 88D”, length 5.0 m

RS422 Remote control cable, length 15.0 m 1.023.745.81
For interconnection between D19 MicAD
MASTER and D19 MicAD STAGE or D19 MicAD
units or other compatible RS422 controllers.

RS422 Remote control cable, length 1.0 m 1.023.754.00
For interconnection between several D19 MicAD
STAGE or D19 MicAD units (or D19 MicAD
MASTER, if required).

Edi tion:

Come in! E 1/3

19.02.01

D19 MicAD

1.3 Safety and connections

1.3.1 Utilization for the purpose intended

The Studer D19 MicAD 8-channel Mic/Line preamplifier is designed for
professional use. It is presumed that the unit is operated only by trained
personnel; servicing must be performed by qualified experts.

The electrical connections may be connected only to the appropriate
voltages and signals specified in this manual. Please consult the “Safety
and EMC” section at the very beginning of this manual.

1.3.2 Power connection

There is no need to select a specific mains voltage setting because the
Studer D19 MicAD can be operated on mains voltages from 100 through
240 VAC.

Caution! Repair work may only be performed by a trained service technician. The

primary fuse of the D19 MicAD must be replaced by a spare fuse of
exactly the same type. The D19 MicAD must not be opened by the user
because of the risk of a severe electric shock hazard!

Power cable The supplied power socket has to be fitted with a mating power cable

incl. plug by an electrician, if your local Studer agency or your dealer
should not have added a fitting power cable.

☛ Please consult the “Safety” section at the very beginning of this

manual.

E 1/4 Come in!

Edi tion:

19.02.01

1.3.3 Connector panel

D19 MicAD

MIDI REMOTE

1

3

4

5

2

RETURNIN OUTTHRU

RS422 REMOTE CONTROL

[2]

LINE INPUTS

MIC INPUTS SYNCHRONIZATION

8 AES 3/4AES 1/2 AES 7/8

7

36

45

1245 3678

2

1

IN/OUT RETURN/THRU

DIGITAL OUT

WCLK OUTWCLK INAES IN

[7] [8] [7] [1][3]

DIGITAL MCH OUT

DIGITAL MCH OUT

[9]

[1] AC POWER Connector for socket IEC 320/C13.

Supply voltage range 100...240 V

(without voltage selector); mains fre-

AC

quency 50...60 Hz.
For connecting to the mains, please consult the Safety section at the
very beginning of this manual.

OPTICAL OUT

[5][6]

TDIF-1

AES 5/6

[2] LINE INPUTS Analog Line inputs on female XLR connectors. Sensitivity for full-scale

input level of the A/D converter adjustable from –5 dBu to +24 dBu.

Input impedance 11 kΩ, transformer-balanced.

[3] MIC INPUTS Microphone inputs on female XLR connectors. Sensitivity for full-scale

input level of the A/D converter adjustable from –49 dBu to +20 dBu.

Input impedance 1 kΩ, transformer-balanced.

[4] DIGITAL OUT AES/EBU Outputs on male XLR connectors, transformer-balanced. Out-

put impedance 110 Ω.

[5] Optional Digital Outputs TDIF-1 eight-channel format or optical ADAT eight-channel format.

[6] Remote Control Options For installation of optional remote modules: Either MIDI-RS422 module

or MIDI merge module .

[7] AES IN Input for external synchronization via AES/EBU (female XLR connector).

[8] WCLK IN Input for external Word Clock synchronization (BNC connector).

[9] WCLK OUT Output of the Word Clock Sync signal (BNC connector).

Edi tion:

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19.02.01

D19 MicAD

1.4 Technical specifications (subject to change without notice)

1.4.1 Audio specifications (all measurements at f

Frequency response: Microphone 20 Hz...20 kHz, ±0.4 dB

Line 20 Hz...20 kHz, ±0.1 dB

A/D converter: Delta-Sigma, 64 × oversampling, resolution 20 bit, linear.

Mic input noise figure: typ. < 3.5 @ max. gain, 20 Hz...20 kHz, 24°C

Signal/noise ratio: A/D converter > 106 dBFS, CCIR 468-3

THD + Noise: Line < –85 dBFS @ 20 Hz...24 kHz, Full Scale

Crosstalk: Line-Line/Mic-Mic

< –96 dB @ 1 kHz; < –92 dB @ 20 Hz...20 kHz

Analog inputs: 8 separate Mic and Line inputs on XLRs, transformer-balanced and float-

ing.
8 dual concentric potentiometers for MIC/LINE Gain control.
Functions selectable per channel: Phase, Phantom (Mic input only),
High-pass filter (–3 dB @ 75 Hz, 12 dB/oct.; Mic input only).
Stereo Link Control for adjacent channel pairs.
Selectable for all channels simultaneously: Soft Clip.

Input sensitivity range for Full Scale:

Mic –49...+20 dBu
Line –5...+24 dBu

= 48 kHz)

S

Maximum input level (analogue): Mic +20 dBu

Line +24 dBu

Interchannel gain deviation (stereo pairs):

Mic < 0.5 dB
Line < 0.05 dB

Input impedance: Microphone 1 kΩ

Line 11 kΩ

Metering: PPM, peak program meter with switchable Peak Hold function;

16-segment bargraph displays, range –60 dBFS...Overload.

Digital audio processing: DC reject (always on)

Output word length 20 bit, 16 bit with Dithering or 16 bit with Noise
Shaping.

Digital outputs: 4 AES/EBU outputs on XLRs, transformer-balanced and floating accord-

ing to AES3-1992, ANSI S4.40-1992
Amplitude 2...5 V

Impedance 110 Ω

Optional outputs: • TDIF-1 8-channel, 20 or 16 bit serial audio data with sampling fre-

quency information; C-MOS level.

• ADAT optical 8-channel format.

E 1/6 Come in!

Edi tion:

19.02.01

1.4.2 Peripheral connections

Synchronization/sampling rate: Word Clock IN 30...54 kHz, TTL level, impedance 75 Ω

Word Clock OUT 30...54 kHz, TTL level, impedance 75 Ω

AES/EBU IN 30...54 kHz, transformer-balanced and floating,

impedance 110 Ω, according to AES 11-1991

Internal clock 44.1 kHz / 48 kHz

Remote control: Control ports: MIDI or MIDI-RS422 (optional)

Device number: 1...16 or OMNI mode, settable on front panel
Remote: ON/OFF, selectable on front panel

1.4.3 Power supply

Mains voltage: 100...240 VAC, 50...60 Hz

Current consumption: 0.5...0.25 A

D19 MicAD

Appliance inlet: IEC 320/C14

Primary fuse: T 2.0 A H 250 V UL, CSA

1.4.4 Primary fuse

Caution: The primary fuse is located inside the D19 MicAD/MicAD STAGE. Re-

pair work may only be performed by a trained service technician. The

primary fuse of unit must be replaced by a spare fuse of exactly the same
type. The unit must not be opened by the user – risk of a severe electric

shock hazard!

Spare fuse: T 2.0 A H 250 V UL, CSA (5 × 20 mm) Order No. 51.01.1022

1.4.5 Operating conditions

Ambient air temperature: +10°...+40°C

Relative humidity: Category F (DIN 40040)

1.4.6 Safety and EMC standards

Safety: Protection class I according to EN 60950; 1992 + A1/A2; 1993 (UL

1950)

EMC: Product family standard for audio, video, audio-visual, and entertain-

ment lighting control apparatus for professional use.

Emission: EN 50081-1; 1992

Immunity: EN 50082-1; 1992

Edi tion:

Come in! E 1/7

19.02.01

D19 MicAD

(Knobs)

(Rubber feet)

1.4.7 Mechanical data MicAD/MicAD STAGE

Weight: approx. 6 kg, all options installed.

Dimensions: [mm]

88.3

482.4

1.4.8 Mechanical data MicAD MASTER

MicAD MASTER can be installed into the meter panel section of Studer
mixing consoles.

Weight: approx. 2.5 kg.

Dimensions: [mm]

482.4

approx. 19

(BNC)

365

approx. 19

(Knobs; MicAD only)

130

approx. 19

88.3

approx. 8

(Rubber feet)

approx. 8

E 1/8 Come in!

Remote

Edi tion:

19.02.01

2 OPERATION

2.1 Operating elements

[4]

D19 MicAD

[3]

[5]

MicAD

POWER

OVL

–1
–3
–6
–9
–12

–18
–24
–30
–40
–60

12

MIC

18

LINE

24 -6

dBu/FS

LINE

OVL

–1
–3
–6

MIC

–9

–12

LINE

Ø

–18

48V

–24
–30
–40
–60

6

12

0

18

24 -6

dBu/FS

1

LINE

MIC

LINE

Ø

48V

LINK

SEL SEL SEL SEL SEL SEL SELSEL

6

0

18

2 3

OVL

–1
–3
–6
–9

–12
–18
–24
–30
–40
–60

12

24 -6

dBu/FS

OVL

–1
–3
–6

MIC

–9

–12

LINE

Ø

–18

48V

–24
–30
–40
–60

6

0

LINE

6

12

18

24 -6

dBu/FS

LINE

OVL

–1
–3
–6

MIC

–9

–12

LINE

Ø

–18

48V

–24
–30

LINK

–40
–60

12

18

0

24

dBu/FS

4 5

LINE

OVL

–1
–3
–6

MIC

–9

–12

LINE

Ø

–18

48V

–24
–30
–40
–60

6

12

0

18

-6

24

dBu/FS

LINE

MIC

LINE

Ø

48V

LINK

6

0

18

-6

6 7

OVL

–1
–3
–6
–9

–12
–18
–24
–30
–40
–60

12

24

dBu/FS
LINE

OVL

–1
–3
–6

MIC

LINE

Ø

48V

6

0

-6

MIC

–9

–12

LINE

Ø

–18

48V

–24
–30

LINK

–40
–60

6

12

18

0

24

-6

dBu/FS
LINE

[1] [8] [2] [6]

MIC/LINE

Ø

48V

STEREO LINK

PEAK HOLD SOFT CLIP REMOTE

8

[9] [10] [13]

[7]

[11] [12] [14]

D19 SERIES

SOFT

HOLD

INT

WCLK

16DI

AES

16NS

AUTO

20BIT

MODE SYNC CTRL CH

REM

48
44

VAR

MicAD

[1] POWER Switches the unit on or off. The unit is ready to operate with the factory

default settings. The subsequent settings remain stored in a Flash
EPROM after switching the unit off (unit contains no battery).

CHANNEL FUNCTIONS: The following functions operate on individual channels:

[2] SEL Toggle key to select or deselect one or more of the eight channels to

be operated on (Functions [3]...[7]). Multiple channel selection is pos­sible by holding one of the SEL keys down and pressing several SEL
keys successively.

[3] MIC/LINE Toggle key to select the MIC INPUT or LINE INPUT of the selected

channel(s).

[4] Ø Toggle key to activate the phase reverse switch of the selected chan-

nel(s).

[5] 48 V Toggle key to activate the 48 V phantom power supply for the selected

microphone channel(s).

[6] Activates the high pass filter on the microphone inputs of the selected

channel(s). Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.

[7] STEREO LINK Activates the STEREO LINK of the selected channel(s) in pairs (1/2, 3/

4, 5/6, 7/8). The linked channels are then controlled as a stereo pair
from the odd channel’s controls. If linked, the odd-numbered chan­nel's gain potentiometer sets the gain of both the odd- and even-num­bered channels. Mic/Line setting, Gain setting, 48 V phantom power
supply and high-pass filter setting of the odd channels are copied into
the evennumbered channels. Exception: The phase reversal function
can always be controlled individually. After having deselected the
link function, the even-numbered channel retains the settings which
have been copied from the odd-numbered channel, but all channel
functions can be controlled individually again.

Edi tion:

Operation E 2/1

19.02.01

D19 MicAD

[8] LINE/MIC Potentiometer Adjusts the gain of the LINE INPUT (ring) and the MIC INPUT (knob) in

1 dB steps. The printed scale on the front panel corresponds to the
LINE INPUT.

LINE INPUT, Headroom The LINE potentiometer is calibrated in dBu per full-scale. It repre-

sents the dBu value of an analog input signal which causes a full­scale output of the A/D converter.

Example: A studio works with +6 dBu nominal analog level and uses 12 dB

headroom. The LINE potentiometer should then be set to 18 dBu.

Full scale

6 dBu + 12 dB =

Potentiometer

setting:

18 dBu

12 dB Headroom

Input signal

+6 dBu nom. level

(Panel) Setting [dBu] = Nominal level [dBu] + Headroom [dB].

E 2/2 Operation

Edi tion:

D19 MicAD

19.02.01

GLOBAL FUNCTIONS: The following functions are activated for the entire unit:

[9] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 Bit,

16 Bit with Noise Shaping or 16 Bit with dithering can be selected.

[10] SYNC Selects the synchronization source for the unit. Possible selections are:

INT 48 Internal quartz reference, 48 kHz
INT 44 Internal quartz reference, 44.1 kHz

WCLK Selects external Word Clock Sync

AES Selects external AES/EBU Sync

AUTO Selects sources automatically in the sequence AES-WCLK-INT

VAR Indication only, active if the external source frequency deviates from

48 or 44.1 kHz for more than approx. ±1%.

48

INT

44

WCLK

16DI
16NS
20BIT

[11] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level me-

ters – either permanent or with automatic reset after approx. 2 s.

AES
AUTO

VAR

[12] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to

reduce the danger of overloading the A/D converter with short signal
peaks. Threshold at 3 dB below full-scale, allowing for approx. 6 dB
reserve before hard clipping occurs.

[13] CTRL CH Toggle key to select a remote control channel (1...16), or Omni mode

(for MIDI control).

[14] REMOTE Toggle key to activate REMOTE MODE. Local controls and display

are disabled.To switch the REMOTE function off, press the key for more
than one second.

MicAD STAGE

The MicAD Stage version contains only the CTRL CH and REMOTE
keys and the POWER switch.

[13] CTRL CH Toggle key to select a remote control channel (1...16), or Omni mode

(for MIDI control).

[14] REMOTE Toggle key to activate REMOTE MODE. To switch the REMOTE func-

tion off, press the key for more than one second.

Edi tion:

Operation E 2/3

19.02.01

D19 MicAD

MicAD MASTER

The MicAD MASTER can be used to control all functions of any MicAD
version. Usually, it is powered from the controlled MicAD; it has no
POWER switch. All functions work in the same way as on the MicAD
except for the following additional functions:

[8] LINE/MIC Potentiometer When a remote control channel is selected, the potentiometer settings

of the Master will usually be different from the ones of the selected
MicAD. Normally, audio levels are displayed. As soon as a potentiom­eter is slightly turned, the Master's display changes to indicate the
difference between the potentiometer setting and the actual gain set­ting on the MicAD.

OVL
–1
–3
–6
–9
–12

–18
–24
–30
–40
–60

MIC
LINE
Ø
48V

LINK

SEL

With reference to this indication, the corresponding potentiometer has
to be turned (down for our example) until only the center LED is on.
During this matching process the potentiometer does not change the
gain. As soon as only the center LED is on, the display changes to
indicate the signal level again, and the potentiometer position is
matched to the gain setting. From now on, the potentiometer is active
and controls the gain of the MicAD's corresponding input channel.

[13] CTRL CH Key to select the remote control channel to be operated.

D19 MicAD MASTER

Potentiometer

..

No. 2

Remote Control Channel

No. 3

Audio Channel

No. 18

In the example above, 3 MicAD units are remotely controlled by a
MicAD Master. The audio channels are numbered in succession: Unit
no. 1 holds the audio channels no. 1...8, unit no. 2 holds the audio
channels no. 9...16, and so on.
If the gain of audio channel 18 has to be adjusted, select remote con­trol channel no. 3 by pressing CTRL CH as many times as required
until a “3” is displayed. Then, the potentiometer no. 2 adjusts the gain
of audio channel no. 18.

D19 MicAD No. 1
Audio Ch. 1...8

D19 MicAD No. 2
Audio Ch. 9...16

D19 MicAD No. 3
Audio Ch. 17...24

E 2/4 Operation

Edi tion:

19.02.01

2.2 Audio and sync connections, pin assignments

2.2.1 Mic and line inputs

Pin assignment (XLR, 3-pin, female):

Pin Description

1

2

1

3

Ground

2

Input +

3

Input -

-

Chassis

2.2.2 Digital outputs

Pin assignment (XLR, 3-pin, male):

Pin Description

1

1 2

3

Ground

2

Output +

3

Output -

-

Chassis

D19 MicAD

2.2.3 External AES/EBU synchronization

Pin assignment (XLR, 3-pin, female):

Pin Description

1

12

3

Ground

2

Input +

3

Input -

-

Chassis

2.2.4 Word clock in/out

Input Pin assignment (BNC, 75 Ω):

Pin Description

Center

Output Pin assignment (BNC, 75 Ω):

Center

center

outer

Word Clock Input (TTL level)

Ground

Pin Description

center

outer

Word Clock Output (TTL level)

Ground

Edi tion:

Operation E 2/5

19.02.01

D19 MicAD

2.2.5 Using the TDIF-1 8-channel interface

The Tascam TDIF-1 digital I/O format interface is used for sending dig­ital audio data from the D19 MicAD to Tascam DA-88 and compatible
units.

Basic characteristics: 8-channel audio data with sampling frequency information, emphasis

information, and sync signal.
Signal transmission level is C-MOS, unbalanced.

Note: The maximum cable length should not exceed 10 m.

Pin assignment:

1425

DIGITAL MCH OUT

Recorder

e.g. DA-88

TDIF-1

or compatible

Cables: Order No.: F-10.025.031.08 (1.0 m)

F-10.025.031.09 (5.0 m)

Only the specified connecting cables should be used (order numbers
above).

Pin Designation

113

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

*) DA-88 ignores

**) IF-88 SD ignores

***) DA-88 ignores except “DIGITAL IN” and “FORMAT” modes

****) DA-88 displays only warning except “DIGITAL IN” and “FORMAT” modes

DOUT 1/2

DOUT 3/4

DOUT 5/6

DOUT 7/8

LRCK OUT

FS 0 OUT

GND

(FS 1 IN) **) ****)

(LRCK IN) *)

(DIN 7/8)

(DIN 5/6)

(DIN 3/4)

(DIN 1/2)

GND

GND

GND

GND

EMPHASIS OUT

FS 1 OUT

(FS 0 IN) **) ****)

(EMPHASIS IN) ***)

GND

GND

GND

GND

E 2/6 Operation

Edi tion:

D19 MicAD

19.02.01

Cable configuration:

25-pin D-Type,

male

1

14

2

15

3

16

4

17

5

9

7

18

6

19

8

20

21

Shield + housing

10

22

11

23

12

24

13

25

Cable colours (twisted pairs)

org/red 1

org/blk 1

gry/red 1

gry/blk 1

wht/red 1

wht/blk 1

yel/red 1

yel/blk 1

pnk/red 1

pnk/blk 1

org/red 2

org/blk 2

gry/red 2

gry/blk 2

wht/red 2

wht/blk 2

yel/red 2

yel/blk 2

pnk/red 2

pnk/blk 2

org/red 3

org/blk 3

gry/red 3

gry/blk 3

wht/red 3

wht/blk 3

25-pin D-Type,

male

13

25

12

24

11

23

10

22

9

5

7

21

8

20

6

19

18

Shield + housing

4

17

3

16

2

15

1

14

2.2.6 Using the optical ADAT 8-channel interface

The ADAT format is a serial 8-channel format. It uses a single line
cable with fibre optic.

DIGITAL MCH OUT

OPTICAL OUT

Plug type: TOCP 155 k

Optical fibre: TOFC 100

The maximum cable length specified by Alesis is 1 m. However, in
most cases, operation with a cable length up to 10...15 m is possible.

Recorder

e.g. ADAT

or compatible

Edi tion:

Operation E 2/7

19.02.01

D19 MicAD

2.3 Application ideas and examples

The D19 MicAD is perfectly suitable for a whole range of applica­tions. Here are some suggestions:

Studio-in-a-box front end

for STUDER Dyaxis or

other DAWs.

DAW (DYAXIS)

Mic/Line front end, re-

motely controlled from a

digital mixing console or a

router

Studer
Mixing
Console

DYAXIS

DYAXIS

DYAXIS

Digital Audio Links

AES / EBU (8 lines)

or

OPTICAL 8-CH (2 lines)

2 or 8

AES / EBU

MicAD

POWER

1.023.717.00

MicAD

POWER

POWER

MIDI Control

MIC

LINE

D19 SERIES

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

D19 MicAD STAGE

MICRS422 Control

LINE LINE

D19 SERIES

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

D19 SERIESMicAD

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

D19 MicAD STAGE

E 2/8 Operation

Portable studio with an

8-CH Recorder (ADAT,

DA88, or compatibles), for

direct cuts from the mics

to the digital tracks.

8CH OPTICAL
(ADAT),

10.325.011.00

or
8CH TDIF-1,

F-10.025.031.09

MIC

LINE

,

D19 MicAD and 8 TRACK RECORDER

Edi tion:

19.02.01

Optical 8-CH

Stacked Mic/Line studio

interface system, control-

led via the dedicated

remote controller MicAD

MASTER

Universal studio tool,

controlled via

a MIDI controller

MicAD

POWER

MicAD

POWER

MicAD

POWER

up to 16 MicAD STAGE

D19 MicAD

D19 SERIES

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

D19 SERIES

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

D19 SERIES

REM

48

INT

44

WCLK

VAR

AES
AUTO

CTRL CH

REMOTE

CONTROL

1.023.717.00

UP TO 128 MIC INPUTS

UP TO 128 LINE INPUTS

UP TO 128 DIGITAL
OUTPUT CHANNELS

MicAD MASTER

Front end for Studer D940

Digital Mixing Console,

also to be used as a

stage box.

MIDI Controller

MicAD

MicAD

AES/EBU

MicAD

MicAD

MicAD

REMOTE

MUX

MicAD

STAGE BOX
EXTENSION

D19 SERIESMicAD

D19 SERIESMicAD

D19 SERIES

D19 SERIES

MADI

UP TO 56CH

MADI

MIDI Control

AES/EBU and
TDIF or

D940

DSP RACK

MicAD

MicAD

MIC LINE LINE

Control

LOCAL MUX

AES/EBU

D19 SERIESMicAD

LOCAL MIC/LINE INPUTS

D19 SERIESMicAD

D19 MicAD

D940 DESK

Edi tion:

Operation E 2/9

19.02.01

D19 MicAD

2.3.1 Wiring for external synchronization

External synchronization –

recommended practice

Sync Generator

External synchronization,

alternative wiring methods –

not expressly recommended

but possible

Sync Generator

or

AES

AES

AES

AES

WCLK

D19 MicAD

SYNCHRONIZATION

AES IN WCLK OUTWCLK IN

AES IN

SYNCHRONIZATION

AES IN

SYNCHRONIZATION

AES IN

AES IN WCLK OUTWCLK IN

AES IN WCLK OUTWCLK IN

D19 MicAD

D19 MicAD

D19 MicAD

SYNCHRONIZATION

OUT

WCLK OUTWCLK IN

AES IN

WCLK IN

or

SYNCHRONIZATION

AES IN

WCLK IN

OUT

WCLK IN

WCLK OUT

D19 MicAD

D19 MicAD

SYNCHRONIZATION

AES IN

WCLK IN

OUT

WCLK OUTWCLK IN

E 2/10 Operation

Edi tion:

19.02.01

2.4 Remote control

2.4.1 General, hardware

IN: Input

OUT: Output

RETURN: Input, received data is contained in the output data stream

THRU: Buffered, but unchanged input signal

2.4.2 RS422

D19 MicAD

The D19 MicAD can be equipped optionally with a remote control
interface. Two types are available, with the following features and
electrical standards:

RS422 (31.25 kBaud)
MIDI (31.25 kBaud)

RS422 is an industry standard allowing for interference-free commu­nication even in rough environments. Owing to the balanced-mode
implementation the data rate can be up to 10 Mb/s over a distance of
up to 1000 m, provided that good quality, twisted-pair cable is used.

For the RS422 interface 9-pin D-Sub connectors are used.
Input and output are located together with the 24 V supply for the
MicAD Master on the female 9-pin connector. The supply voltage can
be switched on or off with a jumper; the supply current must not ex­ceed 375 mA.
The RETURN input is located together with the THRU output on the
male 9-pin connector.

Connector panel: Jumper:

RS422 REMOTE CONTROL

+24 V ON

IN/OUT RETURN/THRU

Pin assignment:

9-pin, female (IN/OUT) 9-pin, male (RETURN/THRU)

Pin 1 0 V Pin 1 0 V

Pin 2 OUT+ Pin 2 RETURN+

Pin 3 IN- Pin 3 THRU-

Pin 4 0 V Pin 4 0 V

Pin 5 +24 V* Pin 5 --

Pin 6 0 V Pin 6 0 V

Pin 7 OUT- Pin 7 RETURN-

Pin 8 IN+ Pin 8 THRU+

Pin 9 +24 V* Pin 9 --

*connected in parallel; activated with jumper on RS422 board

Edi tion:

Operation E 2/11

19.02.01

D19 MicAD

The MicAD uses the MIDI data rate; the following specifications ap­ply:

31.25 kBaud; ±1%, asynchronous
1 start-, 1 stop bit, 8 data bits

Remote powering: Since the MicAD Master can only be supplied by the MicAD it is

directly connected to, usually for shorter distances also the supply
voltage is taken through the RS422 cable.
The minimum supply voltage of the MicAD Master may be as low as
21 VDC, i.e. the voltage drop at maximum current (375 mA) must not
exceed 3 V

. The cable resistance must be less than 8 Ω. The maxi-

DC

mum distance with a specific type of cable depends on the copper
resistance per meter of the cable and can easily be calculated using
the cable's specs. Please consider that the DC power is wired to two
pins of the 9-pin Sub-D connector for each leg, so that two wires each
can be used.
In the MicAD supplying the MicAD Master the supply jumper has to
be set to “24 V ON” (refer to the preceding page). In all remaining
MicADs the jumper must be set to “24 V OFF”.

Wiring for

MIDI-RS422 control

RS422 REMOTE

D19 MicAD Master

e.g. STUDER 1.023.717.00 (15 m)

D19 MicAD (or D19 MicAD Stage)

RS422 REMOTE CONTROL

IN/OUT RETURN/THRU

e.g. STUDER 1.023.754.00 (1 m)

D19 MicAD (or D19 MicAD Stage)

RS422 REMOTE CONTROL

IN/OUT RETURN/THRU

e.g. STUDER 1.023.754.00 (1 m)

D19 MicAD (or D19 MicAD Stage)

RS422 REMOTE CONTROL

IN/OUT RETURN/THRU

Jumper +24 V set to „ON“

Jumper +24 V set to „OFF“

Jumper +24 V set to „OFF“

E 2/12 Operation

Local powering: If the voltage drop is too high with the cable used, a local supply

(24 VDC/375 mA) can be connected to the corresponding pins of the
IN/OUT connector.

Edi tion:

19.02.01

2.4.3 MIDI

D19 MicAD

MIDI controllers can be used via the popular MIDI interface (Musical
Instrument Digital Interface).

This interface is designed as a 5 mA current loop isolated by opto cou­plers. According to the specifications the cable length should not ex­ceed 15 m. For MIDI links 5-pin DIN connectors are used. On the
transmitter side, the ground pin (no. 2) is used for the screen, but the
screen is not connected to the receiver ground.

Connector panel:

MIDI REMOTE

1

3

4

5

2

Pin assignment:

Outputs OUT, THRU: Inputs IN, RETURN:

Pin 1: NC Pin 1: NC

Pin 2: GROUND Pin 2: NC

Pin 3: NC Pin 3: NC

Pin 4: OUT+ Pin 4: IN+

Pin 5: OUT- Pin 5: IN-

RETURNIN OUTTHRU

The MIDI data rate is specified as follows:

31.25 kBaud; ±1%, asynchronous
1 start-, 1 stop bit, 8 data bits.

Connection diagram: Multiple MicADs are interconnected according to the following prin-

ciple (possible with the MIDI or RS422 interface):

REMOTE

CONTROL

OUTPUT

INPUT

D19 MicAD

CTRL

IN

OUT

D19 MicAD

CTRL

1

CH

THRU

RETURN

IN

OUT

2

CH

. . . . . . . .

THRU

RETURN

D19 MicAD

CTRL

IN

OUT

n

CH

THRU

RETURN

In this way up to 16 units can be linked. Note that only the MicAD
selected by the remote control unit may send its level status to avoid
data loss (see Sysex messages). So it is the remote control unit's task to
mute all automatically generated MicAD messages when switching
over to another unit.
(Request Sync Status with update = OFF; Request Level Status with
update = OFF).

Edi tion:

Operation E 2/13

19.02.01

D19 MicAD

Wiring for MIDI control

MIDI REMOTE

1

4

2

MIDI REMOTE

1

4

2

MIDI REMOTE

1

4

2

D19 MicAD (or D19 MicAD Stage)

3

5

RETURNIN OUTTHRU

D19 MicAD (or D19 MicAD Stage)

3

5

RETURNIN OUTTHRU

D19 MicAD (or D19 MicAD Stage)

3

5

RETURNIN OUTTHRU

E 2/14 Operation

Edi tion:

19.02.01

2.4.4 Programming

D19 MicAD

The Software Protocol is written down in the STUDER D19 MicAD
MIDI IMPLEMENTATION CHART is valid for all kinds of hardware

interfaces.

The Studer D19 MicAD uses an internal cycle duration of 20 ms; in
this time grid all tasks as updating the display, reading in the gain
potentiometers, computing the level etc. are fulfilled. During the peri­odical level dump every 20 ms a Sysex message is transmitted.

All parameters which can be modified are set immediately and with­out any logical automatisms. That means in practical operation that,
for instance when setting a STEREO LINK, no input or filter switchover
in the Slave channel occurs. So the remote application control be­comes more flexible for the programmer. Care must be taken, how­ever, that no impossible combinations are selected (e.g. selecting the
LINE input when no LINE interface is available).

The so-called “Runnig Status” is supported (refer to the general MIDI
specs).

2.4.4.1 Recognized MIDI messages

Recognized MIDI Messages are messages which can be executed by
the MicAD. According to the MIDI specifications several message
types are known; repeating them all would be beyond the scope of
this explanation. Only the commands valid for the MicAD will be
mentioned here. Further information can be found in the MIDI 1.0 de-
tailed specification Ver 4.0 or issues of recent date.

2.4.4.2 Control change

This 2-byte command is part of the Channel Voice Messages. The sta­tus byte (Bn) is followed by 2 data bytes. The first data byte is the
controller number, the second is the control value. There are two pos­sibilities for the control value. Either it is used for controlling a con­tinuously variable value (as a potentiometer setting), then every value
between zero and maximum (7F) means a discrete value to be set; or
it is used for an ON/OFF function, then a zero means OFF, any other
value greater than zero means ON.

c = 97, 97 (Data Increment, Decrement):

The control value is imperatively 127 (7F), it will be incremented or
decremented up to the limit values (0 or 127). For ON/OFF commands
always the complementary mode is selected.

c = 98, 99 (Non Registered Parameter):

A pointer is set to an address with NRPN LSB and NRPN MSB (Non
Registered Parameter Number). The actual value is then entered by

Data Entry (c = 6).

Edi tion:

Operation E 2/15

19.02.01

D19 MicAD

Example: All MIC phase switches are to be set to “reversed”.

According to the MIDI Implementation Chart this function is executed
with NRPN v = 24.

1. Step: Set NRPN MSB to zero (Bn = Control Change, c = 99, v = 00)

2. Step: Set NRPN LSB to 24 (Bn = Control Change, c = 98, v = 24)

NRPN is now 0024, and so the address is selected.

3. Step: Enter a value. In order to switch all phases to REV, ON must be set –
i.e. a value unequal to zero must be selected. For our example we
choose 127 (7F) which is the maximum value interpreted as data byte.
This value is now set with Data Entry.
(Bn = Control Change, c = 6, v = 127).

After having set NRPN, any modifications can be made for the se­lected parameter by means of Data Entry without having to repeat the
steps 1 and 2 from above.

2.4.4.3 System exclusive

The MIDI Implementation Chart indicates the topology of a Sysex mes­sage. The message is arranged exactly according to the general MIDI
specifications.
The Manufacturer ID is defined as 00 00 11 (Studer), MicAD has the
Product ID 00.
Every message is supplied with a checksum which is the one's com­plement of all data bytes.

Checksum = NOT (Σ (Data Byte 0 ... Data Byte n) AND 7F) AND 7F;

A Sysex message is processed only when the checksum has been
received correctly, when the number of data bytes is correct and an
EOX (F7) has been received to terminate the Sysex. In all other cases
the MicAD's state remains unchanged.

If “Request System Status” is requested, the MicAD sends its status
field in the so-called “nibblized data format”, because the maximum
value 127 (7F) interpreted as MIDI data byte could be exceeded (see
MIDI implementation, chapter 2.1). It has to be considered that
64+9 Bytes = 73 Bytes are transmitted, and the time required for this
transmission will be at least 24 ms. Considering the MicAD's internal
cycle time of 20 ms there will be a data loss if multiple requests follow
immediately.

E 2/16 Operation

Edi tion:

19.02.01

2.4.4.4 Transmitted MIDI messages

The D19 MicAD sends Sysex messages only on request (refer to chap­ter 4.3 of the Appendix). The calculation of the Checksum is performed
according to the method explained above in section 2.4.4.3 .

System Status is transmitted in the “nibblized data format”, the data
correspond to the MicAD's internal status field.
On “Level Dump” requests, every 20 ms the valid level data are trans­mitted.

2.4.4.5 MicAD internal system status field

system_status + bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

mic 0 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

line 1 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

phase_mic 2 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

phantom 3 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

filter 4 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

st_link_mic 5 CH 8+7 CH 6+5 CH 4+3 CH 2+1

channel_select 6 CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

resolution_mode 7 20BIT 16NS 16DI

sync_setting 8 VAR 44,1 48 AUTO AES WCLK INT

sync_status 9 VAR 44,1 48 A_LOCK W_LOCK

operation_mode A CAL MUTE REM SOFT HOLD

midi_channel B OMNI b3 b2 b1 b0

TX_mode C ? ? ?

gain_mic1 D b7 b6 b5 b4 b3 b2 b1 b0

gain_line1 E b7 b6 b5 b4 b3 b2 b1 b0

gain_mic2 F b7 b6 b5 b4 b3 b2 b1 b0

gain_line2 10 b7 b6 b5 b4 b3 b2 b1 b0

gain_mic3 11 b7 b6 b5 b4 b3 b2 b1 b0

gain_line3 12 b7 b6 b5 b4 b3 b2 b1 b0

gain_mic4 13 b7 b6 b5 b4 b3 b2 b1 b0

gain_line4 14 b7 b6 b5 b4 b3 b2 b1 b0

gain_mic5 15 b7 b6 b5 b4 b3 b2 b1 b0

gain_line5 16 b7 b6 b5 b4 b3 b2 b1 b0

gain_mic6 17 b7 b6 b5 b4 b3 b2 b1 b0

gain_line6 18 b7 b6 b5 b4 b3 b2 b1 b0

gain_mic7 19 b7 b6 b5 b4 b3 b2 b1 b0

gain_line7 1A b7 b6 b5 b4 b3 b2 b1 b0

gain_mic8 1B b7 b6 b5 b4 b3 b2 b1 b0

gain_line8 1C b7 b6 b5 b4 b3 b2 b1 b0

sys_config 1D LINE_ID REM_ID REM_ID0

phase_line 1E CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH1

st_link_line 1F CH 8+7 CH 6+5 CH 4+3 CH 2+1

D19 MicAD

Edi tion:

Operation E 2/17

19.02.01

D19 MicAD

At the Sysex commands “Request Level Status with update” or “Re­quest Sync Status with update” the addressed MicAD sends the re­quested data. For a level dump, e.g., 17 bytes are required. The time
consumed (approx. 6 ms) is only a third of the MicAD's cycle time of
20 ms. It is easy to see that an overflow will occur if more than 3
MicADs will send a level dump. To avoid this, only the active MicAD
must be allowed to send its data if several MicADs are interlinked.

Before switching the Remote Control over to an other MIDI channel,
transmitting a “Level Request OFF” is imperative in order to avoid the
MIDI link to be occupied.

E 2/18 Operation

Edi tion:

19.02.01

3 ADDITIONAL INFORMATION

3.1 What the heck is Noise Shaping?

It is often necessary to record on digital media accepting only 16 bit
signals. In such cases, the word length of the MicAD's 20 bit convert­ers is best reduced to 16 bit by selecting either then 16NS (Noise shap­ing) or 16DI (Dither) modes. Special DSP algorithms are then acti­vated to reduce the unwanted signal deterioriation which is the result
of shortening the word length.

Dither mode: Eliminates unwanted truncation artifacts (distortion, noise modulation).

Dither can always be used, independent of any subsequent signal
processing.

Noise shaping mode: Further improves the perceptive audio quality, thus best preserving

the original 20-bit signal as it was before being reduced to 16 bit.

However, for further processing of the signal always crossfades, fade­ins, or fade-outs must be used in order to avoid possible clicks.

D19 MicAD

Both processes bring distinctive quality improvement as opposed to
just truncating a 20-bit signal.

The diagram below shows the original 20 bit signal (1) and the effect
of truncating to 16 bits (2). Note the distinctive artifacts which contrib­ute to the degradation of signal quality.

D19 MicAD vs

-90.00

-100.0

-110.0

-120.0

-130.0

-140.0

(2)

(1)

AMP1(dBFS) & SWI(#)

FREQ(Hz)

Edi tion:

-150.0
20 100 1k 10k 20k

Additional information E 3/1

19.02.01

D19 MicAD

The curve (3) in the diagram below shows the 16 bit signal after Noise
shaping had been applied. The curve (4) is the same with only Dither
applied.

D19 MicAD vs

-90.00

-100.0

-110.0

-120.0

-130.0

-140.0

-150.0
20 100 1k 10k 20k

AMP1(dBFS) & SWI(#)

(4)

(3)

FREQ(Hz)

More information on Noise shaping and Dithering technology is avail­able at your nearest Studer representative.

E 3/2 Additional information

Edi tion:

19.02.01

3.2 D19 MicAD block diagrams

to 8-channel

AES SYNC

3.2.1 Global audio block diagram

Only one channel shown; 48 V Phantom power, Mic/Line input, Level,
and High-pass filter are individually settable per channel, while Soft
Clip is a global function.

D19 MicAD

LINE

-14 dB

0, 10...30 dB

0, 1...9 dB

Soft
Clip

MIC

-10, 0...20 dB

48 V

Controller

3.2.2 Synchronization block diagram

The Word clock PLL which transforms up to 256 × Fs is automatically
stopped if no Word clock is applied. The quartz oscillators can be
stopped by the controller individually.

Input

AES

Receiver

A

Fs

select

D/NS

Level

Fs SEL

DSP

Phase

control

OVL

AES1
AES2
AES3
AES4

interface

A_UNLOCK

D

Phase

DC Rej.

Edi tion:

Word clock

Input

44.1 kHz

Word clock

Output

48 kHz

Disable

PLL

×256

256 Fs

select

W_UNLOCK

256 Fs

preset

Divider

64 Fs
32 Fs
2 Fs
Fs

Additional information E 3/3

19.02.01

4 APPENDIX

4.1 MIDI Protocol

MIDI Implementation Chart Version: 1.02

Function Transmitted Recognized Remarks

Basic
Channel

Mode Default

Note
Number True Voice

Velocity Note ON

After
Touch

Pitch Bender x x

Control
Change

Program
Change True#

System Exclusive o o

System

Common

System
Real Time

Aux
Messages

Default
Changed

Messages
Altered

Note OFF

Keys
Channels

:Song Pos
:Song Sel
:Tune

:Clock
:Commands

:Local ON/OFF
:All Notes OFF
:Active Sense
:Reset

1

1-16

x x

x
x

x
x

x 6

x x

x
x
x

x
x

x
x
x
x

1

1-16 Memorized

Mode3

x
x

x
x

14

15
16-23
24-31

67
80-83
85-88

90

96

97

98

99

x
x
x

x
x

o
x
x
o

Data Entry
CLOCK SYNC Select
DIGITAL MODE Select
MIC Sensitivity Ch. 1-8
LINE Sensitivity Ch. 1-8

SOFT CLIP ON/OFF
MIC STEREO LINK
LINE STEREO LINK
PEAK HOLD Mode
Data Increment/ON
Data Decrement/OFF

Non-Reg. Param. LSB
Non-Reg. Param. MSB

Remote OFF/ON

D19 MicAD

Edi tion:

Mode 1: OMNI ON, POLY Mode 2: OMNI ON, MONO o: Yes
Mode 3: OMNI OFF, POLY Mode 4: OMNI OFF, MONO x: No

Appendix 4/1

D19 MicAD

19.02.01

4.2 Recognized MIDI Messages

A Control Change

Status 1011nnnn; (Bn) n = MIDI ch. no. -1

Controller no. 0ccccccc

Controller val. 0vvvvvvv

c = 6 Data Entry

c = 14 CLOCK SYNC Sel.

c = 15 DIGITAL MODE

c = 16 MIC Sens. Ch.1

c = 17 MIC Sens. Ch.2

c = 18 MIC Sens. Ch.3

c = 19 MIC Sens. Ch.4

c = 20 MIC Sens. Ch.5

c = 21 MIC Sens. Ch.6

c = 22 MIC Sens. Ch.7

c = 23 MIC Sens. Ch.8

c = 24 LINE Sens. Ch.1

c = 25 LINE Sens. Ch.2

c = 26 LINE Sens. Ch.3

c = 27 LINE Sens. Ch.4

c = 28 LINE Sens. Ch.5

c = 29 LINE Sens. Ch.6

c = 30 LINE Sens. Ch.7

c = 31 LINE Sens. Ch.8

c = 67 SOFT CLIPPER

v = 0...127 Note 1

v = 0 Internal 48 kHz

v = 1 Internal 44.1 kHz

v = 2 Ext. Word Clock (BNC)

v = 3 Ext. AES Clock (XLR)

v = 4...127 Automatic Clock Select

v = 0 16 Bit Dithered

v = 1 16 Bit Noise Shaping

v = 2...127 20 Bit

v = 0 +20 dBu dig. full scale

v = 1 +19 dBu dig. full scale

.......... ................................

v = 19 +1 dBu dig. full scale

v = 20 +0 dBu dig. full scale

v = 21 -1 dBu dig. full scale

.......... ................................

v = 68 -48 dBu dig. full scale

v = 69...127 -49 dBu dig. full scale

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0...127 +20 dBu...-49 dBu

v = 0 +24 dBu dig. full scale

v = 1 +23 dBu dig. full scale

.......... ................................

v = 23 +1 dBu dig. full scale

v = 24 +0 dBu dig. full scale

v = 25 -1 dBu dig. full scale

.......... ................................

v = 29...127 -5 dBu dig. full scale

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0...127 +24 dBu...-5 dBu

v = 0 Soft Clip OFF

v = 1...127 Soft Clip ON

4/2 Appendix

Edi tion:

D19 MicAD

19.02.01

(cont.) c = 80 STEREO MIC 1/2

c = 81 STEREO MIC 3/4

c = 82 STEREO MIC 5/6

c = 83 STEREO MIC 7/8

c = 85 STEREO LINE 1/2

c = 86 STEREO LINE 3/4

c = 87 STEREO LINE 5/6

c = 88 STEREO LINE 7/8

c = 90 PEAK HOLD Mode

c = 96 Data Increment

c = 97 Data Decrement

c = 98 Non-Reg. Param.

c = 99 Non-Reg. Param.

v = 0 Independent MIC 1/2

v = 1...127 STEREO MIC Ch. 1/2

v = 0...127 STEREO MIC Ch. 3/4

v = 0...127 STEREO MIC Ch. 5/6

v = 0...127 STEREO MIC Ch. 7/8

v = 0 Independent LINE 1/2

v = 1...127 STEREO LINE Ch. 1/2

v = 0...127 STEREO LINE Ch. 3/4

v = 0...127 STEREO LINE Ch. 5/6

v = 0...127 STEREO LINE Ch. 7/8

v = 0 Riding Peak

v = 1...127 Permanent Peak Hold

v = 127 Note 1

v = 127 Note 1

v = 0...88 NRPN LSB

v = 0 MIC/LINE Input Ch. 1

.......... ................................

v = 7 MIC/LINE Input Ch. 8

v = 8 MIC/LINE Input Ch.1-8

v = 16 MIC Phase Rev. Ch. 1

.......... ................................

v = 23 MIC Phase Rev. Ch. 8

v = 24 MIC Phase Rev. Ch.1-8

v = 32 LINE Phase Rev. Ch. 1

.......... ................................

v = 39 LINE Phase Rev. Ch. 8

v = 40 LINE Phase Rev. Ch.1-8

v = 48 Phantom Power Ch. 1

.......... ................................

v = 55 Phantom Power Ch. 8

v = 56 Phantom Power Ch.1-8

v = 64 High Pass Filter Ch. 1

.......... ................................

v = 71 High Pass Filter Ch. 8

v = 72 High Pass Filter Ch.1-8

v = 80 MIC Sensitivity Ch. 1

.......... ................................

v = 87 MIC Sensitivity Ch. 8

v = 88 MIC Sensitivity Ch.1-8

v = 96 LINE Sensitivity Ch. 1

.......... ................................

v = 103 LINE Sensitivity Ch. 8

v = 104 LINE Sensitivity Ch.1-8

v = 0 NRPN MSB (always 0)

Edi tion:

Appendix 4/3

D19 MicAD

19.02.01

B System Exclusive

Status 11110000 F0 System Exclusive

Manufact. ID 00 00 11 STUDER ID

Product ID 0 D19 MICAD ID

Device ID 0000nnnn n = MIDI channel no-1

Command ID 0ccccccc see below

Data 0ddddddd

Checksum 0ccccccc 1-complement (data)

Status 11110111 F7 End of Sys. Exclusive

B.1 c = 0 System Status

B.2 c = 1 Global Param.

B.3 c = 2 Input Parameter

........

0ddddddd

0000hhhh nibblized data format

0000llll System Status byte 0

........ 64 bytes packed

0000hhhh dddddddd = hhhhllll

0000llll Sys. Status byte 31

d0
00000001
00000010
00000100

d1
00010001
00100001
00000010
00000100
00001000

d2
000xxxx0
000xxxx1
000xxx0x
000xxx1x
000xx0xx
000xx1xx
000x0xxx
000x1xxx
0000xxxx
0001xxxx

d3
000yyyyy

d0 Input parameter Ch. 1

d1 Input parameter Ch. 2

d2 Input parameter Ch. 3

d3 Input parameter Ch. 4

d4 Input parameter Ch. 5

d5 Input parameter Ch. 6

d6 Input parameter Ch. 7

d7 Input parameter Ch. 8

see below

(32 bytes unpacked)

Dig. Resolution mode
16 Bit Dithered
16 Bit Noise Shaping
20 Bit

Sync. Selection
Internal 48 kHz
Internal 44.1 kHz
External Word Clock
External AES Clock
Auto Clock Select

Operation Mode
Local Riding Peak
Local Permanent Peak
Soft Clip OFF
Soft Clip ON
Remote OFF, Local ON
Remote ON, Local OFF
DSP Mute OFF
DSP Mute ON
A/D Calibrate OFF
A/D Calibrate ON

Midi Channel selection
y = 0 poly Ch. 1

..........................

y = 15 poly Ch. 16
y = 16 omni mode

4/4 Appendix

Edi tion:

D19 MicAD

19.02.01

B.3 (cont.) c = 2 Input Parameter

B.4 c = 3 Mic Sensitivity

B.5 c = 4 Line Sens.

dn Input parameter Ch. n

0xxxxxx0 Mic Input Select

0xxxxxx1 Line Input Select

0xxxxx0x MIC Phase Rev OFF

0xxxxx1x MIC Phase Rev ON

0xxxx0xx Phantom Power OFF

0xxxx1xx Phantom Power ON

0xxx0xxx Highpass Filter OFF

0xxx1xxx Highpass Filter ON

0xx0xxxx MIC Stereo Link OFF

0xx1xxxx MIC Stereo Link ON

0x0xxxxx LINE Stereo Link OFF

0x1xxxxx LINE Stereo Link ON

00xxxxxx LINE Phase Rev OFF

01xxxxxx LINE Phase Rev ON

d0 Mic Sensitivity Ch. 1

d1 Mic Sensitivity Ch. 2

d2 Mic Sensitivity Ch. 3

d3 Mic Sensitivity Ch. 4

d4 Mic Sensitivity Ch. 5

d5 Mic Sensitivity Ch. 6

d6 Mic Sensitivity Ch. 7

d7 Mic Sensitivity Ch. 8

dn = 0
1
...
19
20
21
...

69...127

d0 Line Sensitivity Ch. 1

d1 Line Sensitivity Ch. 2

d2 Line Sensitivity Ch. 3

d3 Line Sensitivity Ch. 4

d4 Line Sensitivity Ch. 5

d5 Line Sensitivity Ch. 6

d6 Line Sensitivity Ch. 7

d7 Line Sensitivity Ch. 8

dn = 0
1
...
23
24
25
...

29...127

only valid on
d1, d3, d5 & d7

only valid on
d1, d3, d5 & d7

+20 dBu dig. full scale
+19 dBu dig. full scale

................................

+1 dBu dig. full scale
+0 dBu dig. full scale

-1 dBu dig. full scale

................................

-49 dBu dig. full scale

+24 dBu dig. full scale
+23 dBu dig. full scale

................................

+1 dBu dig. full scale
+0 dBu dig. full scale

-1 dBu dig. full scale

................................

-5 dBu dig. full scale

Edi tion:

Appendix 4/5

D19 MicAD

19.02.01

B.6 c=11 Program Load

B.7 c=12 FLASH Memory Erase

B.8 c=127 Request

C Aux Messages

C.1 Local Control ON/OFF

Status 1011nnnn; (Bn) n = MIDI ch. no. -1

Controller no. 0ccccccc

Controller val. 0vvvvvvv

c=122 LOCAL CONTROL

C.2 System Reset

Status 11111111 FF Reset to Default

d0...dn MicAD Program Data

No Data Bytes (Checksum = 7F)

d = 0 System Status

d = 1 Global Parameters

d = 2 Input Parameters

d = 3 MIC channel gain

d = 4 LINE channel gain

d = 5 System Configuration

d = 6 Software Version

d = 7 Sync status w. update

d = 8 Level status w. update

d = 9 Sync status req. OFF

d = 10 Level status req. OFF

d = 11 Program Dump

v = 0...63 Remote ON, Local OFF

v = 64...127 Remote OFF, Local ON

4.3 Transmitted MIDI Messages

A System Exclusive

Status 11110000 F0 System Exclusive

Manufactor ID 00 00 11 STUDER ID

Product ID 0 D19 MICAD ID

Device ID 0000nnnn; n = MIDI channel no-1

Status ID 0sssssss see below

Data 0ddddddd

Checksum 0ccccccc 1-complement (data)

Status 11110111 F7 End of Sys. Exclusive

A.1 s = 0 System Status

A.2 s = 1 Global Status

........

0ddddddd

see below

0000hhhh nibblized data format

0000llll System Status byte 0

........ 64 bytes packed

0000hhhh dddddddd = hhhhllll

0000llll Sys. Status byte 31

d0
00000001
00000010
00000100

(32 bytes unpacked)

Dig. Resolution mode
16 Bit Dithered
16 Bit Noise Shaping
20 Bit

4/6 Appendix

Edi tion:

D19 MicAD

19.02.01

A.2 (cont.) s = 1 Global Status

A.3 s = 2 Input Status

d1
00010001
00100001
00000010
00000100
00001000

d2
000xxxx0
000xxxx1
000xxx0x
000xxx1x
000xx0xx
000xx1xx
000x0xxx
000x1xxx
0000xxxx
0001xxxx

d3
000yyyyy

................

d0 Input parameter Ch. 1

d1 Input parameter Ch. 2

d2 Input parameter Ch. 3

d3 Input parameter Ch. 4

d4 Input parameter Ch. 5

d5 Input parameter Ch. 6

d6 Input parameter Ch. 7

d7 Input parameter Ch. 8

dn
0xxxxxx0
0xxxxxx1
0xxxxx0x
0xxxxx1x
0xxxx0xx
0xxxx1xx
0xxx0xxx
0xxx1xxx
0xx0xxxx
0xx1xxxx

0x0xxxxx
0x1xxxxx

00xxxxxx
01xxxxxx

Sync. Selection
Internal 48 kHz
Internal 44.1 kHz
External Word Clock
External AES Clock
Auto Clock Select

Operation Mode
Riding Peak
Permanent Peak
Soft Clip OFF
Soft Clip ON
Remote OFF, Local ON
Remote ON, Local OFF
DSP Mute OFF
DSP Mute ON
A/D Calibrate OFF
A/D Calibrate ON

Midi Channel selection
y = 0 poly Ch. 1

...........................

y = 15 poly Ch. 16
y = 16 omni mode

Input parameter Ch. n
Mic Input Select
Line Input Select
MIC Phase Rev OFF
MIC Phase Rev ON
Phantom Power OFF
Phantom Power ON
Highpass Filter OFF
Highpass Filter ON
MIC Stereo Link OFF
MIC Stereo Link ON
only valid on d1, d3,
d5 & d7
LINE Stereo Link OFF
LINE Stereo Link ON
only valid on d1, d3,
d5 & d7
LINE Phase Rev OFF
LINE Phase Rev ON

Edi tion:

Appendix 4/7

D19 MicAD

19.02.01

A.4 s = 3 Mic Sens.Status

A.5 s = 4 Line Sens.Stat.

A.6 s = 5 System Config.

A.7 s = 6 Softw. Version

A.8 s = 7 Sync. Status

d0 Mic Sensitivity Ch. 1

d1 Mic Sensitivity Ch. 2

d2 Mic Sensitivity Ch. 3

d3 Mic Sensitivity Ch. 4

d4 Mic Sensitivity Ch. 5

d5 Mic Sensitivity Ch. 6

d6 Mic Sensitivity Ch. 7

d7 Mic Sensitivity Ch. 8

dn = 0
1
...
19
20
21
...

69...127

d0 Line Sensitivity Ch. 1

d1 Line Sensitivity Ch. 2

d2 Line Sensitivity Ch. 3

d3 Line Sensitivity Ch. 4

d4 Line Sensitivity Ch. 5

d5 Line Sensitivity Ch. 6

d6 Line Sensitivity Ch. 7

d7 Line Sensitivity Ch. 8

dn = 0
1
...
23
24
25
...

29...127

00000lrr Configuration field

00000x00 MIDI interface

00000x01 RS 422 interface

00000x10 RS 232 C interface

00000x11 no remote interface

000000xx Line Input not pres.

000001xx Line Input present

0aaaaaaa

........

0zzzzzzz

0v440aw0 Sync. Status byte

0xxx0x00 Word Clk not locked

0xxx0x10 Word Clk locked

0xxx00x0 AES Clk not locked

0xxx01x0 AES Clk locked

00010xx0 48 kHz Clock

00100xx0 44.1 kHz Clock

01000xx0 Variable Clock

+20 dBu dig. full scale
+19 dBu dig. full scale

................................

+1 dBu dig. full scale
+0 dBu dig. full scale

-1 dBu dig. full scale

................................

-49 dBu dig. full scale

+24 dBu dig. full scale
+23 dBu dig. full scale

................................

+1 dBu dig. full scale
+0 dBu dig. full scale

-1 dBu dig. full scale

................................

-5 dBu dig. full scale

Software Version
20 byte ASCII String

4/8 Appendix

Edi tion:

D19 MicAD

19.02.01

A.9 s = 8 Level Status

A.10 s = 11 Program Dump

d0 Level Ch. 1

d1 Level Ch. 2

d2 Level Ch. 3

d3 Level Ch. 4

d4 Level Ch. 5

d5 Level Ch. 6

d6 Level Ch. 7

d7 Level Ch. 8

dn = 0...127 Level Ch. n

0 = Clipping
1 = 0.0 dB FS
2 = -0.5 dB FS

. . ..... .. ..

127 = -63.0 dB FS

d0...dn MicAD Program Dump

Edi tion:

Appendix 4/9