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PMA4240

INPUT CHANNEL FUNCTIONS AND FEATURES, PRIORITY FUNCTIONS

Channel 1 - 5 line signal Input functions

1) Bass, for adjusting the bass boost @ 100Hz

2) Treble, for adjusting the treble boost @ 10kHz

3) Volume adjustment on input signal

4) Mute channel

5) Select distribution of signal to output 1 - 4

Channel 1 - 4 amplifier output functions

6) Volume control of output channel

7) Select button for adressing to monitor listening

8) Level status indicators on channel output

Short Circuit for 

changing priority order

There are several levels of priority

1) MIC1

2) Tel.

3) Remote mic in

To change the order of priority, 

short circuit the ”PRIORITY” terminals

1) Remote mic

2) Tel.

3 MIC1

PRIORITY (OVERRIDE) FEATURES

The combo XLR/TELE input connector offers three different input 

choices, selected with a select switch, the gain is used for 

adjusting and balancing the gain structure of the input equipment.

”LINE”

For using as audio signal line input with CD-players, Tuners, 

MP3-players, Computer, phones and other audio equipment

”PHANTON” 

For using condenser microphones, feeding 48V powersupply.

”MIC”

For using standard dynamic microphones

CHANNEL 1-3 INPUT FEATURES

Summary of Contents for PMA4240

Page 1: ...PMA4240 Zone Matrix Mixer Amplifier 4 x 240W INSTRUCTION MANUAL V1 1...

Page 2: ...round lift function Protect all connectors in the back especially the mains Power input connector This equipment needs to be serviced regularly for prolonging the life span and to make sure the equipm...

Page 3: ...amplifiers features both low impedance 4 16 ohm output and high impedance constant voltage output for 70V or 100V lines only one 8ohm 70V 100V can be used for each channel but the four channels do not...

Page 4: ...Functions of front panel Functions of back panel 1 AC power input socket 10 Line phantom mic select input 1 3 2 Tel dipswitch and volume control 11 Vent outlet 3 Channel 5 line signal input and gain c...

Page 5: ...ircuit for changing priority order There are several levels of priority 1 MIC1 2 Tel 3 Remote mic in To change the order of priority short circuit the PRIORITY terminals 1 Remote mic 2 Tel 3 MIC1 PRIO...

Page 6: ...not connect 8 ohm speakers on 70V or 100V output Do not connect 100V speakers on the 4 16 ohm output Do not connect 70V speakers on the 4 16 ohm output Signal Line out Signal line output can be used t...

Page 7: ...one several or all four output zones with a chime and a talk button Furthermore at the back of the control panel bass treble and gain can be set to adjust the frequency responce and SPL The microphone...

Page 8: ...PMA4240 BLOCK DIAGRAM...

Page 9: ...175mV 10kW balanced input CH5 6 350mV 10kW balanced input TEL 350mV 10kW REMOTE MIC 387mV 10kW EQ adjustments BASS 10dB 100Hz TREBLE 10dB 10kHz SNR 65dB LINE 1 4 OUTPUT LEVEL 1V 600W balanced output M...

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