A-1121
Basic PA Amplifier (120W)
The basic PA amplifiers A-1031, A-1061, A-1121 are cost effective performance mixer power amplifier suited for
broadcasting paging or background music in schools, offices and shops. They can handle up to 3 microphone inputs,
1 AUX input and 1 recording output, all of them with independent volume control and master volume / tone control.
The ER-version features a MIC 1 input with a DIN 5-p plug to provide muting control and a phantom power supply for
condenser microphones. The PA amplifiers can operate both on AC and DC power supply. The speaker outputs can be on
constant voltage distribution (100 V and 70 V) or low impedance (4 ohm).
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| Specifications |
| Power Output |
Max. 180W, rated 120W |
| Output Regulation |
Less than 3dB (no load to full load) |
| Speaker Output |
High impedance; 42 ohms (70V), 85 ohms (100V), balance
/Low impedance; 4 ohms, balanced |
| Recording Output |
0dBV, 600 ohms, unbalanced, RCA pin jack (when using both L and R) |
| Input |
MIC1; -55dBV (1.8mV), 600 ohms, unbalanced, phone jack 6.3mm
MIC 2&3; -55dBV (1.8mV), 600 ohms, unbalanced, phone jack 6.3mm
AUX1; -20dBV (100mV), 10k ohms, unbalanced, phone jack 6.3mm
AUX2; -20dBV (100mV), 10k ohms, unbalanced, RCA pin jack (when using
both L and R) |
| Frequency Response |
100~ 10,000Hz (±3dB) |
| Distortion |
Less than 1% at 1kHz (1/3 rated power) |
| S/N ratio |
Better than 92dB (all volume controls c.c.w.)
Better than 75dB (MASTER volume c.w., all input volume c.c.w.)
Better than 75dB (MIC 1, 2, 3; better than 70dB/AUX 1, 2) |
| Tone Controls |
Over -10dB at 100Hz and 10,000Hz |
| Indicators |
Power indicator LED, LED output level meter |
| Protection Circuit |
Current limiter, thermal protection, AC and DC fuse |
| Muting Function |
MIC1 overrides other input signals with 0 - 30dB attenuation (activated by voice signal) |
| AC Power Supply |
110 - 120V or 220 - 240V AC |
| DC Power Supply |
24V DC |
| AC Power Consumption |
380W (rated output) |
| DC Power Consumption |
9A |
| Dimensions (W × H × D) |
420 × 103 × 262mm |
| Weight |
10 kg |
| Finish |
Panel; ABS resin, Black
Case; steel plate, Black |
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