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Lab.gruppen C 28:4
The C 28:4 is one of two mid-power four channel amplifiers in the C Series, with up to 700 W per channel. It suits distributed systems and zone fills where four modest channels beat two large ones.\n\nThe Class-TD output stage delivers Class A/B audio quality at Class D efficiency, and a regulated switch mode power supply holds output constant as mains voltage moves. Selectable gain, the scalable Voltage Peak Limiter and bridge mode cover the configuration, with NomadLink for monitoring.
| Number of amplifier channels | 4 |
|---|---|
| Peak total output all channels driven | 2800 W |
| Peak output voltage per channel | 141 V |
| Max output current per channel | 12 Arms |
| Hi-Z per ch. (all ch.'s driven): 70 Vrms / 100 V peak | 700 W |
| Bridged per ch.: 140 Vrms / 200 V peak | 1400 W |
| THD 20 Hz - 20 kHz at 1 W | 0.1% |
| THD at 1 kHz and 1 dB below clipping | 0.05% |