Citronic: 172.125UK, Hybrid Class-H Power Amplifier, 2 x 1200W @ 2 Ohm, 1U Rack Mount
About this product
Hybrid Class-H Power Amplifiers
Lightweight power amplifiers in a 19" rack-mountable housing for generating high sound pressure levels in medium to large sound reinforcement systems. H-series amplifiers employ a new hybrid class-H architecture, which combines the streamlined efficiency of a digitally controlled power section design with the power delivery and stability of a professional class-H output stage.
- Hybrid class-H circuit design
- Digitally controlled and monitored power section
- Switchable 120Hz low-pass crossover
- Backlit LCD status display
- Full internal thermal and overload protection
- Stable down to 2 Ohms (4 Ohms bridged)
Comprehensive internal protection monitors any thermal or overload conditions, automatically mutes at power on/off and provides active inrush limiting. A digital display continually shows supply voltage, internal temperature and output level. A fully balanced signal path has three switchable input sensitivity levels to match different audio sources, and the amplifier section can operate in Stereo, Parallel or Bridge modes.
A switchable 120Hz low-pass filter can be selected for use with subwoofers, avoiding the need for a separate crossover and saving additional expense and rack space. Speaker outputs can be connected using one or two Speakon leads as required. H-series amplifiers provide immediate and dynamic power on demand for sound contractors and PA installers that need dependable service with optimum sound quality.
Specifications
Specifications
Fuse | T8AL 250V |
---|---|
THD +N | 0.2% |
Weight | 7.0 kg |
Crossover | Switchable full range or fixed 120Hz low-pass filter |
S/N ratio | -95 dB |
Protection | Short/open circuit, thermal, RF, DC fault, on/off mute, active inrush |
Power Supply | 200-240 Vac, 50 Hz (IEC) |
Damping Factor | >700 |
Input Impedance | 20 KΩ (balanced), 10 KΩ (unbalanced) |
Input Sensitivity | 1.0V - 1.4V - 2.0V switchable |
Frequency Response | 20Hz-20KHz ±0.5 dB |
Power RMS @ 2 Ohms | 2 x 1200W (40ms burst 1kHz sine) |
Power RMS @ 4 Ohms | 2 x 900W |
Power RMS @ 8 Ohms | 2 x 600W |
Amplifier Construction | Hybrid Class-H |
Power RMS Bridge @ 4 Ohms | 2400W (40ms burst 1kHz sine) |
Power RMS Bridge @ 8 Ohms | 1800W |
Hybrid Class-H Power Amplifier (2 x 1200W) features

Citronic: 172.125UK, Hybrid Class-H Power Amplifier, 2 x 1200W @ 2 Ohm, 1U Rack Mount