Restored Kenwood KA-9100 receiver.

This unit has had any bad caps changed, all pots and switches cleaned and is working as it should with no issues.

The only thing it does do is a very slight static sound when turning the volume up or down. The volume/balance control is a stacked potentiometer. They are almost impossible to find. No one that I know of is remaking that part so a good cleaning is about all you can do unless you want to try to rebuild the traces on the pots themselves. I have tried that on other pots over the years and it usually doesn't work out so well. Anyway, when using the receiver, the unit doesn't not make any static sounds when the volume is set, only sometimes when adjusting it to get the desired volume you want.

The Kenwood KA-9100 is a classic DC-coupled integrated amplifier introduced in 1977. It is highly regarded by vintage audio enthusiasts for its "dual mono" design, featuring two large independent power transformers and three separate power supplies (one for each power amp channel and one for the preamp). 

Key Specifications

• Power Output: 90 watts per channel into 8 ohms; 110 watts per channel into 4 ohms.
• Frequency Response: 7Hz to 50kHz.
• Total Harmonic Distortion (THD): 0.03%.
• Damping Factor: 50.
• Inputs: Dual phono inputs, Aux, Tuner, and two tape loops.
• Weight: Approximately 16.7 kg (36.8 lbs). 

Design & Features

• Visuals: Known for its brushed aluminum faceplate and two large, backlit analog power meters with adjustable sensitivity.
• Build Quality: Features high-quality tactile knobs and switches typical of the "silver-faced" era.
• DC Coupling: The amplifier is fully direct-coupled, which means it lacks output capacitors; this design aims to preserve bass clarity and prevent high-frequency roll-off. 

Market Value & Availability As of early 2026, market prices for the KA-9100 vary significantly based on condition and restoration status: 

• General Range: Typically found between $301 and $958 on Reverb.
• Restored Units: High-end professionally restored and upgraded units can reach $2,400 to $4,000 at retailers like eBay or Reverb. 

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