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Serviced Japanese JVC A-X40 Super A Integrated Amplifier 1982 - 1984

2nd best JVC Integrated Amplifier at the time

• And yes I do service audio gear, ask in questions

Fully working, for condition see photos

Rare unique JVC Super A amplifier technology, completely eliminated transistor switching distortion with Super-A; the result is smooth and powerful sound.

These JVC Super A amplifiers are very well reviewed and gives truly excellent sound quality

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Fully serviced including:

• Checked all capacitors, most were replaced due to out of spec.
• New Upgraded Main Filter capacitors ELNA 10,000uf 63V (audio grade)
• Checked all solder joints and resoldered all that was needed
• 2x heatsinks on 2x warm transistors
• Thermal paste on 4x parts near main heatsink
• Heat output checked, all ok
• 2X new lamps on power meter display
• Fully cleaned
• Cleaned all sliders/switches
• Idle current adjusted 11mV
• Power output tested (see below)
• Fully check over, all ok
• Safety tested, all perfect

Dual speakers, dual tape loops, power meter, 5 band SEA equalizer

See last photos for power output testing

Power meter is bright like new

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RMS Power output, 2 channel:

• 55 watts per channel into 8ohm 1kHz
• 64 watts per channel into 4ohm 1kHz
• 60 watts per channel into 4ohm 20Hz

Frequency response: 10Hz to 100kHz

Total harmonic distortion: 0.007%

Damping factor: 50

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 72dB (MM), 104dB (line)

Dimensions: 435 x 117 x 303mm

Weight: 6.3kg

Year: 1982-1984

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Reviews/Info:

https://www.hifiengine.com/manual_library/jvc/a-x40.shtml

https://hifi-wiki.com/index.php/JVC_A-X_40

https://manualmachine.com/jvc/ax40/3265480-owners-manual/

PICKUP - Oakura

Due to large size and weight shipping is a bit more than normal

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