Minus 50 – That's the €2'579 Eversolo AMP-F10's kilowatt 4Ω output rating in bridged mode. There it delivers 950 watts, then 650W/8Ω. Stereo mode generates 200/320wpc into 8/4Ω from five pairs of dual-differential Mosfets per channel. The linear power supply centres on a 1000W power toroid. Selectable voltage gain is 23/29dB, bandwidth 10Hz-30kHz ±0.5dB. Dimensions are 43x31x14.7cm WxDxH, weight is 18kg.