Harman Kardon HK970 Integrated Stereo Amplifier. Two-channel music playback is the toughest test for any audio component and the new Harman Kardon HK 970 passes that test with flying colors. From the ultimate combination of modern design and proven concepts, the HK 970 high-current amplifier delivers the power that easily drives the most difficult speaker loads. The result is a vibrant and dynamic sound that faithfully reproduces the original performance. No flattering performance, the HK 970 delivers true sound reproduction. Good to know : -Connect a 2nd set of speakers with Speaker A/B - A record player can be connected to the Phono input - Adjustment of Bass and Treble possible via the Tone control. Specifications: Power output: 80 watts per channel into 8Ω (stereo) Frequency response: 10Hz to 110kHz Total harmonic distortion: 0.07% Input sensitivity: 200mV (line) Signal to noise ratio: 95dB (line) Dimensions: 439 x 110 x 395mm Unit has been tested and fully operational small signs of use on the top casing cover but nothing major please check pictures for more insights.