R
LTO
OWNER'S MANUAL
MP8D
EIGHT CHANNELS MICROPHONE/INSTRUMENT
PREAMPLIFIER WITH DIGITAL OUTPUT
www.altoproaudio.com
Version 1.2 SEPTEMBER 2007
English
IMPORTANT SAFETY INSTRUCTION
CAUTION
RISK OFELECTRIC SHOCK
DO NOTOPEN
TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK PANEL OF THIS EQUIPMENT.
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.
This symbol, wherever used, alerts you to the
presence of un-insulated and dangerous voltages
within the product enclosure. These are voltages that
may be sufficient to constitute the risk of electric
shock or death.
This symbol, wherever used, alerts you to
important operating and maintenance instructions.
Please read.
Protective Ground Terminal
AC mains (Alternating Current)
Hazardous Live Terminal
ON: Denotes the product is turned on.
OFF: Denotes the product is turned off.
CAUTION
Describes precautions that should be observed to
prevent damage to the product.
1.
Read this Manual carefully before operation.
Keep this Manual in a safe place.
2.
Be aware of all warnings reported
3.
with this symbol.
4.
Keep this Equipment away from water and
moisture.
5.
Clean it only with dry cloth. Do not use
solvent or other chemicals.
6.
Do not damp or cover any cooling opening.
Install the equipment only in accordance with
the Manufacturer's instructions.
Power Cords are designed for your safety. Do
7.
not remove Ground connections! If the plug
does not fit your AC outlet, seek advice from
a qualified electrician. Protect the power
cord and plug from any physical stress to
avoid risk of electric shock. Do not place
heavy objects on the power cord. This could
cause electric shock or fire.
Unplug this equipment when unused for long
8.
periods of time or during a storm.
Refer all service to qualified service personnel
9.
only. Do not perform any servicing other than
those instructions contained within the
User's Manual.
To prevent fire and damage to the product,
10.
use only the recommended fuse type as
indicated in this manual. Do not short-circuit
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.
WARNING
To reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.
Dispose of this product should
notbeplacedinmunicipalwaste
and should be separate collection.
MovethisEquipmentonlywithacart,
11.
stand, tripod, or bracket,
specified by the
manufacturer, or
sold with the
Equipment. When
a cart is used, use
caution when
moving the cart /
equipment
combination to
avoid possible
injury from tip-over.
12.
Permanent hearing loss may be caused by
exposure to \ extremely high noise levels.
The US. Government's Occupational Safety
and Health Administration (OSHA) has
specified the permissible exposure to noise
level.
These are shown in the following chart:
HOURS X DAY SPL EXAMPLE
Small gig
8
6
4
3
2
1,5
1
0,5
0,25 or less
According to OSHA, an exposure to high SPL in
excess of these limits may result in the loss of
heat. To avoid the potential damage of heat, it is
recommended that Personnel exposed to
equipment capable of generating high SPL use
hearing protection while such equipment is
under operation.
The apparatus shall be connected to a mains
socket outlet with a protective earthing
connection.
The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.
90
train
92
Subway train
95
High level desktop monitors
97
Classic music concert
100
102
105
110
115
Rock concert
IN THIS MANUAL:
1. INTRODUCTION....................................................................................1
2. FEATURES...........................................................................................1
3. QUICK START.......................................................................................2
4. CONTROL ELEMENTS..........................................................................4
5. INSTALLATION & CONNECTION............................................................7
6. APPENDIX ........................................................................................10
6. BLOCK DIAGRAM...............................................................................11
7. TECHNICAL SPECIFICATIONS
...............................................................12
8. WARRANTY........................................................................................13
1. INTRODUCTION
Thank you for your purchasing the MP8D microphone/instruments preamplifier with
digital output. It is just one of the many LTO products that a talented, multinational
Team of Audio Engineers and Musicians have developed with their great passion for
music. The MP8D ESOTAR has been built with no economy thinking at the challenges
of the digital era. It is made in road-worthy and durable package for live and recording
studio applications. The MP8D ESOTAR includes the same high-end microphone preamplifiers used in the renewed LTO Typhoon large format mixing console. Their
performance rivals with the world's best preamplifiers that cost three or four time
more. The MP8D ESOTAR is equipped with both analogue and digital outputs, and
therefore, it can be used great flexibility with analogue Live Consoles, Digital Audio
Workshop and Hard Disk Recording. Channel 1&2includeahigh-impedance instrument
input so that you don't need an external D/I box to connect an electric guitar or bass
to these inputs. Then, each of the eight channels has a phantom power switch, a lowcut switch and a GAIN control. The available gain is 60 dB, so a Line switch is not
needed. The sample rate selector allows you to select 44.1k, 48k, 44.1k 2, 48k 2,
44.1k 4, 48k 4 or sample rate, or to use an external clock. MP8D ESOTAR features
an outstanding 128 dB of S/N ratio; a frequency response extended to 200 kHz and
a THD of 0,007%. The characteristics make MP8D ESOTAR to be one of the most
transparent and advanced Microphone/Instrument preamplifiers available today.
Enjoy your MP8D ESOTAR and make sure to read this Manual carefully before operation!
2. FEATURES
Ultra-Wide Dynamic Range
Low-Noise Operating Levels
+48 V Phantom Power on every Channel
Instrument Input on Channel1&2
Eight 24-bit ADC Converters
ADAT Lightpipe Output TM
AES/EBU Outputs 24 bit/192 kHz
1/4" TRS Balanced Analogue Outputs
BNC Word Clock I/O for Sync
1
3. QUICK START
This is the fastest way to get something out from your MP8D, if you have a keyboard and
a microphone.
a. Keep the Power switch in OFF position.
b. Turn down all the GAIN controls.
c. All the switches must be in OUT position.
d. Plug-in a microphone on Channel 1 MIC input.
e. Connect the output of Channel 1 (use the INSERT socket) to your mixer.
f. Sing or speak into the microphone with normal volume and adjust the channel LEVEL
control of half.
g. Connect the AES/EBU output of your MP8D to a digital input of your HDR or DAW.
h. Connect the ADAT pipeline of your MP8D to your ADAT Recorder.
i. If you are using a dynamic microphone, keep the +48V (phantom power) switch in OFF
position. If you are using a condenser microphone, press it in ON position.
j. Sing something into the microphone with normal volume and adjust the GAIN, so that
the -20 and 0 LEDs light continuously. CLIP LED should flash occasionally or not at all.
Hereyouare.ItisyourMP8D.
HOOK
MP8DWITHADAW
UP
ACINPUT
IN
till
skallanslutas
Apparaten
ansluts
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jordatuttag
tillett natverk
210-240V 50Hz
RatedPower
Consumption35W
Useonly with a 250V fuse
FUSE:
250V:T315mAL
REPLACEFUSE
WITHCORRECT
TYPEONLY
S/PDIF-AES/EBU
Signal converter
DAW = Digital Work Station
BASS
OUT
WORD CLOCK
DIGITAL OUT
ADAT
CH.7
CH.8
INSERT
J.T.
J.T.
J.T.
J.T.
21
21
3
MIC.IN
MIC.IN
21
3
3
MIC.IN
MIC.IN
21
J.T.
21
3
3
MIC.IN
MIC.IN
21
PUSH
J.T.
3
MIC.IN
INSERTINSERTINSERTINSERTINSERTINSERTINSERT
PUSH
MIC.IN
CH.1
CH.2
CH.3
CH.4
CH.5
CH.6
GUITAR
2
HOOK
MP8D WITH ADAT RECORDING DEVICE
UP
BASS
till
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narden
skallanslutas
jordatuttag
Apparaten
tillett natverk
HOOK
till
ansluts
narden
skallanslutas
jordatuttag
Apparaten
tillett natverk
ACINPUT
210-240V 50Hz
RatedPower
Consumption35W
Useonly with a 250V fuse
FUSE:
250V:T315mAL
REPLACEFUSE
WITHCORRECT
TYPEONLY
IN
S/PDIF-AES/EBU
Digital Mixer
OUT
WORD CLOCK
DIGITAL OUT
ADAT
CH.7
CH.8
INSERT
J.T.
J.T.
J.T.
J.T.
J.T.
21
21
21
3
3
MIC.IN
MIC.IN
MIC.IN
21
3
3
MIC.IN
MIC.IN
21
J.T.
21
3
3
MIC.IN
MIC.IN
CH.2
CH.3
CH.4
CH.5
CH.6
CH.1
INSERTINSERTINSERTINSERTINSERTINSERTINSERT
PUSH
PUSH
MIC.IN
GUITAR
MP8D IN LIVE APPLICATION
UP
BASS
ACINPUT
210-240V 50Hz
RatedPower
Consumption35W
Useonly with a 250V fuse
FUSE:
250V:T315mAL
REPLACEFUSE
WITHCORRECT
TYPEONLY
IN
S/PDIF-AES/EBU
OUT
WORD CLOCK
DIGITAL OUT
ADAT
CH.7
CH.8
INSERT
J.T.
J.T.
J.T.
J.T.
J.T.
21
21
21
3
3
MIC.IN
MIC.IN
MIC.IN
21
3
3
MIC.IN
MIC.IN
21
J.T.
21
3
3
MIC.IN
MIC.IN
CH.2
CH.3
CH.4
CH.5
CH.6
CH.1
INSERTINSERTINSERTINSERTINSERTINSERTINSERT
PUSH
PUSH
MIC.IN
EQUALIZER
20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K
R
Dual31BandGraphicEqualizer
LTO
20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K25 40 80 160 400 1K 2K 5K 10K63 125 315 800250 630 1.6K 4K3.15K 8K 16K 20K
SIGCLIPPROT SIG CLIPPROT
20
20
18
18
22
22
16
16
24
24
26
26
12
12
28
28
6
6
(dB)
(dB)
CH1
CH2
30
30
AMPLIFIER
INPUT
LEVEL
INPUT OUTPUT
+12
+12
+6
SIG
SIG
CLIP
CLIP
126
ON40Hz 16KHz
0dB
0
-6
-12
-12
EQRANGE
LOW
HI
PASS
PASS
ChannelOne
EQU231
ChannelTwo
MK V2
INPUT OUTPUT
+12
+12
+6
SIG
SIG
CLIP
CLIP
12
6
ON40Hz 16KHz
0dB
0
-6
-12
-12
EQRANGE
LOW
HI
INPUT
PASS
PASS
LEVEL
D1
500W2
GUITAR
3