The CTRLPA CT1650 is a 650 W pure power amplifier for constant-voltage park and emergency PA plants. It provides 70 V / 100 V and 4 Ω balanced floating (ungrounded) outputs, 6.35 mm and XLR loop-through for daisy-chain, five-segment LED metering, and short-circuit protection with alarm. Specs include 60 Hz–16 kHz (±3 dB) response, <0.3% THD, ~1000 W mains draw, and 17.5 kg net weight in a 484 × 380 × 88 mm chassis.

• Rated output: 650 W
• Outputs: 70 V, 100 V, or 4–16 Ω (balanced, floating / ungrounded)
• Loop I/O: 6.35 mm and XLR for easy ring connection
• Frequency response: 60 Hz–16 kHz ±3 dB
• THD: <0.3%
• Input sensitivity: 0 dBm; SNR related note per source: <80 dB path
• Protection: output short-circuit with alarm; 5-LED level meter
• Power: AC 220–240 V / 50–60 Hz; consumption ~1000 W
• Dimensions (L×W×H): 484 × 380 × 88 mm
• Net weight: 17.5 kg