The "HF-A" series power amplifiers are wideband, complimentary class AB linear amplifiers with output impedance close to zero ohm. This feature enables our power amplifiers to have the ability to cope with a wide range of dynamic loads.

The frequency response of our power amplifiers covers the whole audio frequency range (20 Hz to 20K Hz) and part of the ultrasound & radio frequency range (up to 800K Hz). The standard output voltage of the power amplifiers (without output transformers) is 0 - 28 V rms. With external output transformers, the output voltage can go up to other level specified by customers (10K V rms. maximum). The output power rating of our power amplifiers ranges between 50 watts to 1400 watts as an individual unit. Higher power or multiple-phase configurations can be achieved by combining multiple units. The power ratings of our power amplifiers are for continuous duty at full power with +0.7 to -0.7 power factor.

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