This fantastic Hitachi HMA-7500 high quality power amplifier is fully serviced. Equipped with new Panasonic FC-A electrolytic capacitors and bipolar electrolytic capacitors up to 4.7hF have been replaced by Wima foil capacitors. The amplifier sounds really great, it even impresses me as a tube fanatic! The 48,000uF (4x12,000uF) of electrolytic capacitors have not been replaced because they were still well within the specs and can last for many years to come. Amplifier is equipped with 2 transformers so one for left and one for the right power stage. The lighting has also been adjusted to LED. According to factory specifications, this amplifier delivers 75 watts by 8 Ohms but measured 98 watts myself without it starting to clip. The amplifier is only sent within the EU (i.e. not to the UK). The specs are coming from the Internet Power output: 75 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.02% Damping factor: 60 Input sensitivity: 1V Signal to noise ratio: 120dB Speaker load impedance: 4Ω to 16Ω Dimensions: 480 x 165 x 355 mm Weight: 15.8 kg