User manual

PAGE 6

User Manual PCA 240 USB

Connecting multiple speakers in parallel to the 100V output

Connecting multiple speakers in parallel to the 70V output

0 100V 0 100V 0 100V

100V70V25V

4 8 16

COM

Chime On/Off

Switching on the manual chime on/off (10) switch on the rear panel and the priority conditions,

chime function will be activated ( “Ding-Dong” pre-announcement chime) when the priority override is activated.

The default volume of the chime is pre-set at the factory and should be suitable for most applications.

Power In & Pre Out (21-22)

These sockets connect the mixer/preamplifier stage to the power amplifier stage. The connecting link must

be plugged in for normal operation as a mixer/amplifier. If a compressor/limiter, equalizer, or other external

signal processor is used in the sound system, connect the “PRE OUT” to the input of the external processor

and the output of the processor to “POWER IN” In the signal chain, “PRE OUT” is after the tone controls

and the master volume control.

Loudspeaker Connection

This device provides two different types of loudspeaker outputs :

High impedance lines (25/70/100V) and low impedance (4, 8, 16Ω), you can only use one of these outputs at

any one time, any attempt to use two or more of these may result in damage to the amplifier.

Loudspeaker Direct Outputs

PCA 240 USB provides direct outputs according to the designed use:

- High impedance lines (25/70/100V)

- Low impedance (4, 8, 16Ω)

These outputs, give an output at all times, reproducing any input signal into the amplifier (INPUTs 1-5,

USB/SD interface). The chime and priority functions affect these outputs.

Connecting a single speaker to 8 ohm output

8 ohm

100V70V25V

4 8 16

COM

Connection two 8 ohm speakers in parallel to the

4 ohm output.

8ohm 8ohm

100V70V25V

4 8 16

COM

0 70V 0 70V 0 70V

100V70V25V

4 8 16

COM