4-ZONE PA mixing pre-amplifier. 3U design. Built-in four independent amplifier, which can broadcast different sources at the same time. 4MIC/LINE Balance inputs. 1AUX Unbalance input. Individual tone (treble & bass), gain and zone paging control per input. Individual VU 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 |
| Frequence Response | 20Hz to 22KHz,±2dB |
| Main voltage | 220~240VAC/110~120VAC~50/60Hz or 24VDC |
| Impedance | Microphone Input:1.4KΩ, All Other Input: 10KΩ or Greater, All Other Output: 120Ω |
| Dimension(WxDxH) | 483x195x44mm(19” x 1.5” x 1.7”) |
| Weight | 2.9kg (6.63lb) |