Macrom 44.07, 44.05 User Manual

44.05/44.07

PROGRAMMABLE POWER AMPLIFIER, BRIDGEABLE FOR SIMULTANEOUS STEREO/MONO OUTPUT, 2/4 INPUT, 2/3/4 OUTPUT, ASYMMETRICAL ELECTRONIC CROSSOVER, MOS-FET POWER SUPPLY, DISCRETE COMPONEN TS FINAL STAGE

OWNER'S MANUAL

BEDIENUNGSANLEITUNG

MANUEL D'EMPLOI

MANUALE D'ISTRUZIONI

MANUAL DE INSTRUCCIONES

CONTENS / INHALT / TABLE DE MATIERES /

INDICE / ìNDICE

• CONNECTIONS / ANSCHLUSSE / CONNEXIONES / COLLEGAMENTI / CONEXIONES ...................... 3

• INSTALLATION / EINBAU / INSTALLATION / INSTALLAZIONE /INSTALACION .................................... 4

• SYSTEM CHART / SYSTEM-DIAGRAMM / EXEMPLES DE SYSTEME /

DIAGRAMMA DI SISTEMA/DIAGRAMMA DEL SISTEMA ..................................................................... 5-6

" ENGLISH"

INTRODUCTION ............................................................................................................................................. 7

PRECAUTIONS ............................................................................................................................................... 7

FEATURES ................................................................................................................................................... 8-9

INSTALLATION ............................................................................................................................................... 9

CONNECTIONS ......................................................................................................................................... 9-10

SETTING AND SELECTOR ................................................................................................................. 11-12-13

TECHNICAL DATA ........................................................................................................................................ 14

"DEUTSCH"

EINFUHRNG .................................................................................................................................................. 15

VORSICHT .................................................................................................................................................... 15

EIGENSCHAFTEN ................................................................................................................................... 16-17

INSTALLATION ............................................................................................................................................. 17

ANSCHLUSSE .......................................................................................................................................... 17-18

REGEL-UND WAHLSCHALTER ......................................................................................................... 19-20-21

TECHNISCHE ANGABEN ............................................................................................................................. 22

"FRANCAIS"

INTRODUCTION ........................................................................................................................................... 23

PRECAUTIONS ............................................................................................................................................. 23

CARACTERISTIQUES ............................................................................................................................. 24-25

INSTALLATION ............................................................................................................................................. 25

CONNEXIONS .......................................................................................................................................... 25-26

REGLAGES ET SELECTEURS ........................................................................................................... 27-28-29

DONNEES TECHNIQUES ............................................................................................................................. 30

"ITALIANO"

INTRODUZIONE ............................................................................................................................................ 31

PRECAUZIONI .............................................................................................................................................. 31

CARATTERISTICHE ................................................................................................................................ 32-33

INSTALLAZIONE ........................................................................................................................................... 33

COLLEGAMENTI ...................................................................................................................................... 33-34

REGOLAZIONI E SELETTORI ............................................................................................................ 35-36-37

DATI TECNICI ............................................................................................................................................... 38

"ESPAÑOL"

INTRODUCCION ........................................................................................................................................... 39

CAUCIONES .................................................................................................................................................. 39

CARACTERISTICAS ................................................................................................................................ 40-41

INSTALACION ............................................................................................................................................... 41

CONEXIONES .......................................................................................................................................... 41-42

AJUSTES Y SELECTORES ................................................................................................................ 43-44-45

DATOS TECNICOS ....................................................................................................................................... 46

CONNECTIONS / ANSCHLUSSE / CONNEXIONES /

COLLEGAMENTI / CONEXIONES

1 2 3 4 5 6 7 8 9 10 11 12

ON OFF

INPUT INPUT/BY-PASS

A/E

B/F

0.5V

GAIN

CONTROL

0.1V2V

0.5V

GAIN

CONTROL

0.1V2V

4CH 2CH

3CH

4CH 2CH

OUTPUT

LOW PASSINPUT

ON OFF HIGH PASS

CROSSOVER CUTTING POINT

105Hz

160Hz50Hz

LOW PASS HIGH PASS

Fig. 1/Abb. 1

160Hz50Hz

13 14 15 162117 18 19 20 22 23 24

C A B 25A

CHECK CONTROL

BATT GND REMOTE25A++

Fig. 2/Abb. 2

SYSTEM CHART / SYSTEM-DIAGRAMM / EXEMPLES DE SYSTEME

DIAGRAMMA DI SISTEMA / DIAGRAMA DEL SISTEMA

Five channel passive configuration

57.00

95.83 95.83

Audio Signal

57.00

59.10

59.16

57.04

95.82s

59.16

OFF

2CH

4CH

LOW PASS

HIGH PASS

2CH

OFF

4CH

INPUT

OUTPUT

3CH

Six channel passive configuration

57.00

95.83 95.83

59.10

59.16

.07

Power Amplifier

44.05/44.07

59.25

Audio Signal

59.25

Band-Pass

Filter

Coil 5mH

95.82s

Left Right

MONO

59.10

59.16

57.04

59.16

57.00

59.10

59.16

57.04

59.16

4CH

INPUT

OUTPUT

3CH

MONO

57.04

59.16

95.82s

.07

OFF

2CH

LOW PASS

HIGH PASS

2CH

OFF

Power Amplifier

44.05/44.07

59.25

Coil 5mH

95.82s

Left Right

INTRODUCTION

For us at MACROM the achievement of the topmost sound quality is one of our greatest concerns. By the fact that you chose to buy one of the “programmable” amplifiers MACROM we realize that this is also your concern. This unit offers 70/100 Watt max. 4-channel at 4 Ohm or 2x150 Watt max. when mono-bridged, with pure and stable sound qualities.

We advise you to read the following instructions very carefully in order to get the maximum out of the outstanding performances and the advanced features and functions of the 44.05/44.07. Please report any problem to the nearest MACROM dealer.

PRECAUTIONS

1. The unit may be damaged by wrong lead connection, therefore read carefully the instructions of

this manual for the correct connection of the leads.

2. The last lead to be connected is the one to the positive (+) terminal of the battery; connect this

lead only after having completed and checked all other connections.

3. Due to the power of the 44.05/44.07 it is imperative that all connections are clean and secure in

order to avoid damage to the unit.

4. Be sure to install the amplifier in a position with good air circulation and good heat dissipation.

5. In case of fuse replacement make sure to replace it with a fuse of the same amperage.

The use of fuses with the wrong amperage may seriously damage the components of the unit. If fuses blow more than once, carefully check all electrical connections. Also have your car’s voltage regulator checked. Do not attempt to repair the unit yourself. If repairs are ever needed, take the unit to your MACROM dealer or to your nearest MACROM service station.

6. In order to obtain the best possible performance from this unit, make sure that the temperature

inside your car is within the range of -10° C and +60°C before you switch the unit on. Good air circulation is essential to prevent heat build-up inside the unit.

FEATURES

•

4/3/2 CHANNEL OPERATION

The power of the 44.05/44.07 can be subdivided as follows: a) 40/65 W RMS for each of the four output channels b) 40/65 W RMS on two stereo channels and 110/150 W RMS mono c) 100/150 W RMS on two stereo channels

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NO AMPERAGE LIMITATIONS

The amperage limitation circuits incorporated in traditional amplifiers may cause untimely clipping and a low transient response. The absence of such circuits ensures a low T.I.M. effect, an excellent transient response and a perfect sound quality.

•

INPUT MODE SELECTOR

This selector allows the user to choose between 2 or 4 input signals to the amplifier.

•

OUTPUT MODE SELECTOR

This selector allows the user to specify the number and the configuration of the outputs.

•

BY-PASS OUTPUT

In the "2 CH INPUT" configuration a preamplified BY-PASS output with unitary gain can be used.

•

ADJUSTMENT OF INDEPENDENT CROSSOVER FREQUENCIES

This control allows for independent and continuous adjustment of the Low Pass and High Pass crossover frequencies from 50 to 160 Hz adding great versatility to your unit.

•

REMOTE ON/OFF

On switching the head unit on or off, the amplifier is automatically switched on or off.

•

RCA INPUT SENSITIVITY

The sensitivity adjustment of this new amplifier is positioned at 500 mV for optimum coupling with other MACROM sources. However, the continuous adjustment from 100 mV to 2 V is possible for easy coupling of other sources available on the market.

•

CHECK CONTROL INDICATOR

This LED Shows the current state of the amplifier. WHITE The unit is off. GREEN The unit works perfectly well. RED The unit is in the protection mode, verify connections.

•

TRIPLE PROTECTION

Your unit is provided with three different protection devices, as befits all high-end products: SOFT START: the amp powers gradually in order to avoid damage to the speakers in case the head unit is switched on with the volume control set to maximum. OVERHEATING: in case of wrong installation the unit enters the protection mode before being damaged. As soon as the temperature returns to normal values, the unit resumes normal operation. OUTPUT SHORT CIRCUIT: in case of a short circuit at the speaker outlets the unit enters the protection mode in order to avoid serious damage to the end-stage transistors. Normal operation is resumed on eliminating the short circuit.

•

FINAL STAGE WITH DISCREET COMPONENTS (TRANSISTORS)

FEATURES

•

MOS-FET POWER SUPPLY STAGE

The high power of the 44.05/44.07 is obtained by the use of a highly sophisticated C-MOS-FET supply units giving constant performance, high efficiency in favour of lower current-consumption. The results are excellent performance, a linear and ample frequency response with high dynamics.

•

CAPACITIVE / INDUCTIVE POWER SUPPLY FILTER

This filter reduces radio frequency interferences (RFI) and cuts off system noises (i.e. the whine of the alternator).

•

GILDED VETRONITE PRINTED CIRCUIT

•

GOLD-PLATED RCA-CONNECTORS

•

GOLD-PLATED SCREW-TYPE SPEAKER OUTPUT CONNECTIONS

INSTALLATION

INSTALLATION (Fig. 3, page 4)

Due to the high power of the amplifier a great amount of heat is generated when the unit is in use. Therefore, it is necessary to install the unit in a place with good air circulation or otherwise the amplifier will enter the protection mode. The most suitable place for installation is the boot; obviously, the unit should not be covered with carpet floor or similar.

1. Place the unit at the point of installation and mark the position of the four securing screws provided.

2. Drill the screw holes.

3. Place the amplifier in the correct position and secure it by means of the four tapping screws provided.

NOTE: Connect the ground lead to a screw already provided on the chassis of the car (marked with an * in the figure).

CONNECTIONS

CONNECTIONS (Fig. 1, page 3)

1 RCA-input connector, channel B/F (right)

2 RCA-input connector, channel A/E (left)

3 Input level adjustment of channels A-B

4 RCA- input connector, channel D, or BY-PASS output connector (right)

5 RCA- input connector, channel C, or BY-PASS output connector (left)

6 Input level adjustment of channels C-D

7 Output mode selector

8 Input mode selector

9 High Pass on/off selector

10 Low Pass on/off selector

11 Frequency adjustment of Low Pass (the indication is referred to -3 dB)

12 Frequency adjustment of High Pass (the indication is referred to -3 dB)

CONNECTIONS

CONNECTIONS (Fig. 2, page 3)

13 Positive output terminal, speaker A, or positive output speaker E

14 Negative output terminal, speaker A

15 Positive output terminal, speaker B

16 Negative output terminal, speaker B, or negative output speaker E

17 Positive output terminal, speaker C, or positive output speaker F

18 Negative output terminal, speaker C

19 Positive output terminal, speaker D

20 Negative output terminal, speaker D, or negative output speaker F

21 2x20/2x25 A fuses

22 Power supply terminal +12 V to the battery (BATT)

23 Terminal for connection of the negative ground lead (GND)

24 Terminal for remote switch-on (REMOTE)

25 Check control status indicator

CONNECTIONS:

Battery lead: Connect the terminal BATT 22 to the battery cable of the car by means of a

(yellow) cable of adequate section. Do not connect this lead to circuits existing within the electric system of the car. In order to avoid damage to the car it is imperative that this lead be fitted with a fuse (not provided) as near as possible to the battery. This connection is the to be carried out last.

Remote switch-on lead: Connect the remote switch-on lead (REMOTE) or the control lead of

the power antenna coming from the head unit (blue) to the REMOTE 24 terminal of the amplifier. NOTE: In case this lead is not connected, the amplifier will not be switched on when the head unit is switched on. If your head unit is not fitted with an outlet for a power antenna, a quick-break lever switch (SPST) shall be installed between the power source (+12 V) and the remote switchon lead and connected to the REMOTE 24 terminal so as to provide for manual switch-on of the amplifier.

Ground lead: Secure the ground lead (black) to a clean spot on the car chassis and to the GND

terminal 23 . Make sure that there is electric continuity between this spot and the negative terminal of the battery. The ground cable should be as short as possible; in case more than one amps are used, connect all the ground connectors to one spot.

Fuse: In case of fuse replacement make sure to replace it with a fuse of the same amperage.

The use of fuses with the wrong amperage may seriously damage the components of the unit.

Speaker outlet terminals: Make sure to keep the right polarity and phase on connecting the

speakers. This includes the control of the right polarity, positive (+) and negative (-). NOTE: The negatives of the speakers should NEVER be connected witch each other and no common ground lead must be used.Non adequately isolated wires should never come into contact with each other, with metallic parts of the car or with the ground lead.

RCA input connectors: Connect the Pre output leads of your head unit to the RCA input

connectors by means of RCA extension cables (90.05-90.10-90.25-90.50 by MACROM). Make sure to observe the right channel designation: left L (white) and right R (red).

SETTINGS AND SELECTORS

CROSSOVER CUTTING POINT

LOW PASS HIGH PASS

105Hz

160Hz50Hz

105Hz

160Hz

50Hz

ON/OFF MODE & HIGH-PASS SELECTOR SWITCH

a) "ON/OFF Low-Pass" MODE: Select the “ON” position

when you want to use the Low-Pass filter section; thus, only the low frequencies are output at the C-D or F outputs.

INPUT

OUTPUT

2CH4CH

LOW PASS

HIGH PASS

ONOFF

b) "ON/OFF High-Pass "MODE: Select the “ON” position

when you want to use the High-Pass filter section; thus, only the medium-high frequencies are output at the A-B or E outputs.

ADJUSTMENT OF LOW&HIGH PASS FREQUENCiES

a) "HIGH PASS": Allows for continuous adjustment of

the High Pass frequency between 50 and 160 Hz, that is, for the determination of the point where the mediumhigh frequencies start.

b) "LOW PASS": Allows for continuous adjustment of

the Low Pass frequency between 50 and 160 Hz, that is for the determination of the point where the low frequencies end.

INPUT GAIN ADJUSTMENT CONTROL

In the mid position (click) an input sensitivity of 500 mV is selected corresponding to the preamplified outputs of MACROM products.

4CH 3CH 2CH

2CH4CH

INPUT

OUTPUT

4CH 3CH 2CH

CROSSOVER CUTTING POINT

105Hz

160Hz50Hz

LOW PASS HIGH PASS

0.5V

0.1V2 V

GAIN

CONTR

105Hz

50Hz

LOW PASS

HIGH PASS

160Hz

GAIN

CONTR

ONOFF

0.5V

0.1V2 V

In case the amplifier is to be connected to a head unit that is not of MACROM make but is fitted with preamplified RCA outputs, proceed as follows:

a) adjust the volume control of your head unit to 3/4 of

b) turn the input gain control by means of a screwdriver

NOTE: Both adjustments are always activated, independently from the number of inputs, except in case "c" described at page 13.

maximum output level.

and adjust the input gain from 2 V to 0.1 V in order to have the maximum sound level with no distortion.

0.5V

2 V

GAIN

CONTRO

0.5V

0.1

2 V

GAIN

CONTRO

0.1

SETTINGS AND SELECTORS

OUTPUT MODE SELECTOR WITH 4 INPUT CHANNELS

a) "4CH

INPUT" "4CH OUTPUT" MODE: As your head unit is equipped with four pre-amplified outputs

select the position “4CH” and connect the outputs to the amplifier inputs marked with the letters A (left), B (right), C (left) and D (right). Thus, the amplifier can be used as a 4-channel stereo system, front section A and B and rear section C and D, by using the speaker outputs A, B, C and D. You can then activate (ON) independently the different sections of the built-in electronic crossover to obtain the High-Pass outputs A and B and/or the Low-Pass outputs C and D.

FRONT REAR

A / E

B / F

b) "4CH

0.5V

2 V

GAIN

CONTROL

0.5V

0.1V

2 V

GAIN

CONTROL

0.1V

INPUT

OUTPUT

4CH 3CH 2CH

2CH4CH

LOW PASS HIGH PASS

ONOFF

INPUT" "3CH OUTPUT" MODE: This configuration uses a single 44.05/44.07 amplifier as a

FRONT

A B

LEFT RIGHT

C D

multi-amplifying system. There are 3 output channels, 2 stereo channels A and B, and a third channel F with a single bridged mono signal which can then be balanced by means of the fader control of your head unit. In case you want to use the built-in electronic crossover, it is possible to connect medium-high speaker systems to the A and B outputs by placing the High-Pass selector in the ON position, whereas a woofer system or a powerful subwoofer can be connected to the section F by placing the Low-Pass in the ON position.

FRONT REAR

A / E

B / F

2 V

GAIN

CONTROL

0.5V

0.1V

0.5V

0.1V

2 V

GAIN

CONTROL

INPUT

OUTPUT

4CH 3CH 2CH

2CH4CH

LOW PASS HIGH PASS

ONOFF

FRONT

A B

LEFT RIGHT

-+-

C D

-+-

SETTINGS AND SELECTORS

OUTPUT MODE SELECTOR WITH 2 INPUT CHANNELS AND A BY-PASS OUTPUT

a) "2CH

INPUT" "4CH OUTPUT" MODE: As your head unit is equipped with only two pre-amplified

outputs select the position “2CH” and connect the outputs to the amplifier inputs marked with the letters A / E (left) and B / F (right). Then select the position "4CH" in order to have 4 output channels, A, B, C and D, respectively, to drive 4 speakers. You can then activate (ON) the different sections of the built-in electronic crossover to obtain the High-Pass outputs A and B and/ or the Low-Pass outputs C and D. NOTE: In case a preamplified output is needed to control another amplifier, the RCA-connectors C and D marked BY-PASS and carrying a unitary gain output signal can be used. The By-Pass output is active only with the "2CH

INPUT" configuration.

IMPORTANT NOTE: Both input sensitivity adjustments are activated and operate independently on the respective outputs.

A / E

B / F

0.5V

2 V

GAIN

CONTROL

0.1V

BY-PASS

0.5V

2 V

GAIN

CONTROL

0.1V

INPUT

OUTPUT

4CH 3CH 2CH

2CH4CH

LOW PASS HIGH PASS

ONOFF

A B

ONOFF

LEFT RIGHT

C D

b) "2CH INPUT" "3CH OUTPUT" MODE: This configuration uses a single 44.05/44.07 amplifier as a

multi-amplifying system. There are 3 output channels, 2 stereo channels A and B, and a third channel F with a single bridged mono signal. In case you want to use the built-in electronic crossover, the outputs A and B can be connected to medium-high speaker systems by placing the High-Pass selector in the ON position , whereas by placing the Low-Pass selector in the position ON a woofer system or a powerful subwoofer can be connected to the mono output F. IMPORTANT NOTE: Both input sensitivity adjustments are activated and operate independently on the respective outputs.

A / E

B / F

0.5V

2 V

GAIN

CONTROL

0.1V

BY-PASS

0.5V

2 V

GAIN

CONTROL

0.1V

INPUT

OUTPUT

4CH 3CH 2CH

2CH4CH

LOW PASS

HIGH PASS

ONOFF

A B

LEFT RIGHT

-+-

C D

-+-

c) "2CH INPUT" "2CH OUTPUT MODE: This configuration uses the amplifier as a traditional and

powerful 2-channel stereo system with the output channels E and F. On activating the built-in electronic crossover, Low-Pass ON with this configuration, only the low frequencies are output for driving two powerful subwoofers. IMPORTANT NOTE: With this configuration only one of the two input sensitivity controls (the right one) is activated for the adjustment of the signal at the E (left) outputs.

A / E

B / F

0.5V

2 V

GAIN

CONTROL

0.1V

BY-PASS

0.5V

2 V

GAIN

CONTROL

2CH4CH

INPUT

0.1V

OUTPUT

4CH 3CH 2CH

LOW PASS HIGH PASS

ONOFF

A B

ONOFF

LEFT

C D

TECHNICAL DATA

44.05 Maximum Power ............................................................. 65Wx4

Nominal RMS 4 Ohm, 20Hz to 20 kHz at 0.1% THD

"4 CH Output" mode ............................................................ 40Wx4

"3 CH Output" mode ............................................................ 40Wx2 110Wx1

"2 CH Output" mode ............................................................ 100Wx2

44.07 Maximum Power ............................................................. 85Wx4

Nominal RMS 4 Ohm, 20Hz to 20 kHz at 0.1% THD

" 4 CH Output" mode ........................................................... 60Wx4

" 3 CH Output" mode ........................................................... 60Wx2 150Wx1

" 2 CH Output" mode ........................................................... 150Wx2

Output By-Pass (Preamplifier) ................................................... 1-1

Frequency response +0, -1dB .................................................. 10-45.000 Hz

S/N IHF-A-weighted .................................................................. 105 dB

Crossover frequencies

LOW-PASS ........................................................................ 50-160 Hz

HIGH-PASS ........................................................................ 50-160 Hz

Crossover slope ........................................................................ 12dB/oct.

Input sensitivity/Impedance (for nominal power output)

Control in central position (click) ......................................... 500mV/10 kOhm

Variable control .................................................................. 100-2,000 mV/10 kOhm

Speaker impedance .................................................................. 2CH 4 Ohm

Power supply ( Negative ground ) ............................................ 14.0V DC (11-16V permissible)

Net Weight

44.05 ......................................................................................... 3.2 kg

44.07 ......................................................................................... 4.5 kg

Chassis size

44.05 ......................................................................................... 280(W) x 55(H) x 250(D)

44.07 .......................................................................................... 280(W) x 55(H) x 300(D)

Due to continuing improvement, the features and the design are subject to change without notice.

3CH 2 Ohm 4 Ohm (mono bridged) 4CH 2-4 Ohm

EINFÜHRUNG

Für uns von MACROM ist die Soundqualität eines unserer Hauptziele. Die Tatsache, daß Sie sich für einen der neuen Verstärker “Programmable” Digital Ready von MACROM entschieden haben, bedeutet, daß Sie ebenso denken. Ihr Verstärker hat eine Leistung von 70/100x4 Watt pro Kanal bei 4 Ohm oder von 2x150/220 Watt max. mono-gebrückt, mit einem sauberen, stabilen Klang. Diese Anleitungen sollen Sie dabei unterstützen, die außergewöhnlichen Leistungen und alle technologischen Eigenschaften Ihres neuen Leistungsverstärkers aufs Beste zu nutzen.

Wir empfehlen Ihnen, diese Bedienungsanleitung sorgfältig durchzulesen, um sich mit den einzelnen Bedienungselementen und Funktionen des 44.05/44.07 vertraut zu machen. Wenden Sie sich für jedes Problem vertrauensvoll an Ihren MACROM-Vertragshändler.

VORSICHT

1. Jeglicher falscher Anschluß der Kabel kann zu Beschädigungen des Geräts führen; lesen Sie aufmerksam die vorliegenden Anleitungen für den Geräteanschluß.

2. Schließen Sie das Batteriekabel als letztes an den Batteriepol (+) an, nachdem alle anderen Verbindungen vollständig ausgeführt und kontrolliert worden sind.

3. Aufgrund der hohen Leistung des Verstärkers 44.05/44.07 müssen alle Verbindungen sauber und fest sein, um Beschädigungen zu vermeiden.

4. Installieren Sie den Verstärker in einer Position mit ausreichender Luftzirkulation, wo die Wärme gut abgestrahlt werden kann.

5. Sollte das Auswechseln von Sicherungen erforderlich sein, so vergewissere man sich, daß eine Sicherung mit derselben Amperezahl verwendet wird. Die Verwendung von Sicherungen mit falscher Amperezahl kann zu schweren Beschädigungen von Verstärkerteilen führen. Sollten die Sicherungen mehr als einmal durchbrennen, so muß man die elektrischen Anschlüsse auf Kurzschluß prüfen. Den Spannungsregler des Fahrzeuges ebenfalls überprüfen lassen. Versuchen Sie auf keinen Fall, das Gerät selbst zu reparieren. Wenden Sie sich an Ihren MACROM-Händler oder an eine MACROM-Dienststelle.

6. Vor dem Einschalten des Gerätes sicherstellen, daß die Temperatur im Fahrzeugraum zwischen -10° C und +60° C liegt, um die besten Betriebsbedingungen zu gewährleisten. Bei großer Hitze besonders gut auf ausreichende Luftzirkulation im Fahrzeug achten, damit kein Wärmestau in dem Gerät auftritt.

EIGENSCHAFTEN

•

4/3/2-KANALBETRIEB

Die Leistung des Verstärkers 44.05/44.07 kann folgendermaßen aufgeteilt werden: a) 40/65 W Sinus pro Kanal für jeden der 4 Ausgangskanäle b) 40/65 W Sinus auf 2 Stereokanälen, und 110/150 W Sinus in mono c) 100/150 W Sinus für zwei Stereokanäle

•

KEINERLEI STROMBEGRENZUNG

Die Strombegrenzungskreisläufe der herkömmlichen Verstärker können ein vorzeitiges Clipping und ein niedrigeres Ansprechen auf Nebenfrequenzen verursachen. Die Abwesenheit dieser Kreisläufe im Versorgungsteil gewährleistet einen niedrigen T.I.M.-Effekt, ein ausgezeichnetes Ansprechen auf Nebenfrequenzen und ein perfektes Klangbild.

•

EINGANGSMODUSWÄHLER

Dieser Schalter bietet dem Benutzer die Möglichkeit, zwischen 2 oder 4 Eingangssignalen zum Verstärker zu wählen.

•

AUSGANGSMODUSWÄHLER

Dieser Schalter bietet dem Benutzer die Möglichkeit, die Anzahl und Konfiguration der Ausgänge zu wählen.

•

BY-PASS AUSGANG

In der Konfiguration 2 CH INPUT kann ein vorverstärkter BY-PASS Ausgang mit einheitlichem Gewinn benutzt werden.

•

UNABHÄNGIGE EINSTELLUNG DER ÜBERGANGSFREQUENZEN

Diese Einstellung bietet dem Benutzer die Möglichkeit, die Übergangsfrequenzen Low und High unabhängig und stufenlos von 50 bis 160 Hz zu regeln.

•

REMOTE-EIN- UND AUSSCHALTEN.

Der Verstärker wird bei Ein- oder Ausschalten des Hauptgeräts automatisch ein- oder ausgeschaltet.

•

RCA-EINGANGSEMPFINDLICHKEIT

Die Eingangsempfindlichkeit des neuen Verstärkers ist für den optimalen Anschluß eines MACROM-Gerätes auf 500 mV eingestellt. Die Empfindlichkeit kann jedoch stufenlos von 100 mV bis 2 V eingestellt werden, um den Verstärkern anderen auf dem Markt verfügbaren Geräten anzupassen.

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CHECK CONTROL-ANZEIGE

Diese LED zeigt den Betriebszustand des Verstärkers an: WEIß Das Gerät ist ausgeschaltet. GRÜN Das Gerät funktioniert einwandfrei. ROT Das Gerät befindet sich im Schutzzustand: ein Fehler liegt vor.

•

DREIFACHER SCHUTZ

Wie es sich für High-End-Geräte gehört, ist dieses Gerät mit drei verschiedenen Schutzvorrichtungen versehen. SOFT START: Der Verstärker gibt seine Leistung allmählich ab, um die Lautsprecher nicht zu beschädigen, wenn das Hauptgerät aus Versehen mit höchster Lautstärke eingeschaltet wird. ÜBERHITZUNG: Bei Installationsfehlern tritt das Gerät in den Schutzstatus, bevor es beschädigt werden kann. Sobald die Temperatur wieder auf einen normalen Wert sinkt, wird der Betrieb wieder aufgenommen. KURZSCHLUß AM AUSGANG: Im Falle von Kurzschlüssen an den Lautsprecherausgängen tritt das Gerät in den Schutzstatus, um die Beschädigung der Endstufentransistoren zu vermeiden. Die Rückkehr zum normalen Betriebszustand erfolgt automatisch nach Beseitigung des Kurzschlusses.

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ENDSTUFE MIT DISKRETEN KOMPONENTEN (TRANSISTOREN)

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