The GFA-545 II is a completely upgraded version of the famous GFA-545. While it retains the conservative power-output rating of the original GFA-545, its redesign significantly reduces distortion in the amplifier when driving difficult loudspeaker loads.
100 watts RMS minimum per channel into 8 ohms or 150 watts RMS into 4 ohms at less than .04% THD
Frequency response: 1.7 Hz ~ 100 kHz +0/-3dB S/N ratio: >110dB (A-weighted)
Dynamic headroom: 2.1dB
Damping factor: >400.
Input Impedence: 100,000 ohms