Crown PIP-AMC Informations techniques télécharger pdf (Page 12)

Macro-Tech 3600VZ Power Amplifier

Page 12

Fig. 3.5 Bridge-Mono Wiring

BRIDGE-MONO MODE

Macro-Tech 3600VZ

CH-2 OUTPUT CH-1 OUTPUT

INPUT INPUT

CH-2 CH-1

PUSH

CH-2 CH-1INPUTS

(MONO)

STEREO

BRIDGE

MONO

PARALLEL

MONO

STEREO

BRIDGE

MONO

PARALLEL

MONO

CAUTION: TURN OFF AMPLIFIER

BEFORE CHANGING THIS SWITCH!

MIXER

–

LOUDSPEAKER

DO NOT USE

CHANNEL 2

INPUTS.

DO NOT

USE BLACK

BINDING

POSTS.

USE ONLY CHANNEL 1 INPUT

3.3.2 Bridge-Mono Operation

Bridge-Mono mode is intended for driving loads with a

net impedance of 4 ohms or greater. (See Parallel-

Mono if the load is less than 4 ohms.) Installing the

amplifier in Bridge-Mono mode is very different from

the other modes and requires special attention.

To put the amplifier in Bridge-Mono mode, turn the

amplifier off and slide the Stereo/Mono switch toward

the right (as you face the back of the amplifier). Both

outputs receive the signal from Channel 1 with the out-

put of Channel 2 inverted so it can be bridged with the

Channel 1 output. DO NOT USE THE CHANNEL 2 IN-

PUT or the signal level and quality may be greatly de-

graded. Keep the Level control of Channel 2 turned

completely down (counterclockwise).

Note: The input jack and level control for Channel 2 are

not defeated in Bridge-Mono mode. Any signal fed into

Channel 2 may work against and add to or distort the

signal in Channel 1.

Connect the load across the Channel 1 and 2 red bind-

ing posts with the positive lead from the load attaching

to a red post of Channel 1 and the negative lead of the

load attaching to a red post of Channel 2 as shown in

Figure 3.5. THE TWO BLACK BINDING POSTS ARE

NOT USED AND SHOULD NOT BE SHORTED. The

load must be balanced (neither side shorted to

ground).

CAUTION: Be certain all equipment (meters,

switches, etc.) connected to the mono output is

balanced. To prevent oscillations, both sides of the

line must be isolated from the input grounds.

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Crown PIP-AMC Informations techniques Page 12

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