Rowen ONE power amplifier

Not so well known, but from Switzerland and surely interesting: "Mono balanced or 2-channel. Tremendous power and sovereignty are accompanied by superb resolution ability and strong control. This power amp (output amp) has any loudspeaker under its complete control. The tremendously voltage robust power potential with 420W RMS at 4 Ohms and 4000W peak music power output at 0.5 Ohms results from the full symmetric operation of this double mono block (Absolute Balanced Amplifier). The overcompensated damping factor of the amplifier (negative impedance) eliminates dynamic loss through cables and passive crossovers frequency separating filters inside the speakers."

- power: 1×240W RMS 8Ω and 1×3500W 0.5Ω
- 2-channel: 2×65W RMS 8Ω and 2×1000W 0.5Ω
- full-symmetric construction with two toroidal transformers
- pure discrete circuit without global feedback
- input: XLR
- input impedance: 50kΩ
- signal-to-noise ratio: 124dB
- distortions THD (20Hz-20kHz): <0 .01="" i="">
- damping factor (at 8Ω): overcompensated - negative output impedance
- dimensions (w×h×d): 21.5×21.7×30.5 cm