Crown Micro-Tech 1201 Informations techniques télécharger pdf (Page 13)

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Micro-Tech 600/1200/2400 Power Amplifiers

Reference Manual

CAUTION: Only connect balanced equipment

(meters, switches, etc.) to the Bridge-Mono output.

Both sides of the line must be isolated from the in-

put grounds or oscillations may occur.

3.3.3 Parallel-Mono Operation

Parallel-Mono mode is used to drive loads with a total

impedance of less than 4 ohms (see Section 3.3.2 if the

load is 4 ohms or more). Installing the amplifier in Paral-

lel-Mono mode is very different from the other modes

and requires special attention.

To select Parallel-Mono mode, turn off the amplifier and

slide the stereo/mono switch to the left (as you face the

back panel). Connect the input signal to channel 1 only.

Fig. 3.6 Parallel-Mono Wiring

PARALLEL-MONO MODE

The channel 2 input and level control are bypassed in

this mode, so they should not be used.

Connect the load to the channel 1 output as shown in

Figure 3.6. The positive loudspeaker lead (+) connects

to the red (+) channel 1 binding post and the negative

(–) or ground lead from the loudspeaker connects to the

black (–) channel 1 binding post. Finally, install a jumper

wire of at least 14 gauge between the red (+) binding

posts of both channels 1 and 2.

CAUTION: When wired for Parallel-Mono mode, do

not operate the amplifier in Stereo or Bridge-Mono

mode until the output wiring is reconfigured. Failure

to do so will result in inefficient operation, high dis-

tortion and excessive heating.

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Crown Micro-Tech 1201 Informations techniques Page 13