SPA-4
- 4 zone P.A. mixing amplifier
- 3U design
- Built-in 4 independent channels, which can broadcast different sources at the same time
- 4 MIC / LINE balance inputs
- 1 AUX unbalance input
- Individual tone (treble & bass), gain and zone paging control per input
- Individual V per output
- Independent headphone output and monitor output
- 1 telephone paging input
- Priority input for telephone and MIC 1
- Switchable AC 115/230V and DC 24V power supply
| Model | SPA-4 |
| Max. Input Gain | 60dB CH MIC. Input Main out (XLR, balanced) 50dB CH MIC. Input & REC. out (unbalanced) 60dB CH MIC. Input Mic, out (unbalanced) 60dB CH MIC. Input Mono out (unbalanced) |
| Distortion (THD &N) | ≤0.03% at 1KHz |
| Frequency Response | 20Hz to 22KHz, ±2dBu |
| Main Voltage | 220~240VAC /110~120VAC~50/60Hzor 24VDC |
| Impedance | Microphone input: 1.4KΩ, all other inputs: 10KΩ or Greater, all other outputs: 120Ω |
| Dimension (W x D x H) | 483 x 15 x 44 mm (19" x 7.5" x 1.7") |
| Weight | 2.9 kg (6.63 lbs) |