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Sherwood S-6040CP

Stereo Power Amplifier

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Sherwood S-6040CP


Power output: 100 watts per channel into 8Ω (stereo)

Frequency response: 1Hz to 200kHz

Total harmonic distortion: 0.03%

Damping factor: 90

Input sensitivity: 1V

Signal to noise ratio: 110dB

Speaker load impedance: 4Ω (minimum)

Dimensions: 440 x 110 x 350mm

Weight: 14kg


service manual   English - nicobanana

instruction/owners manual   English - Ercouper

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Reviewed May 24th, 2016 by keilau

The S-6040CP is one of the better sounding power amplifier in the 100W/ch range. I have 3 of them for a 5.1 setup. The basic circuit is from the Hitachi technical note and similar to the Hafler HD-200/220, but with much heavier construction and beefier power supply than the Hafler. It is a dual mono design that weights 31 pound.

Depending on the age and condition, you may want to consider a re-cap of the power supply section. You will definitely need to if you hear hum from your unit. It is normal for old audio equipment. Make sure that there is no DC offset at the speaker output. If you do, correct it with the trim pot VR101L/R. The MOSFET amp usually runs hotter than other bipolar amplifier. If you feel the cabinet is too hot, check the idle current too. All these process can be found in the service manual.



inkel md2200

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