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Super clean Kenwood KA-5700 with new LED and upgraded speaker terminals. The case was treated with a protective coating. All potentiometers and switches cleaned with Deoxit, all functions tested. There is a small mark on the face, hard to see. It still amazes me how powerful and warm these amps are.The faceplate was removed, cleaned & polished with Blue Magic. The case was removed & cleaned, dust was blown out from the interior. All knobs and switch covers were removed and cleaned, all potentiometers and switches were cleaned and treated with Deoxit F100L Fader Lube for long term protection. All functions and speaker connections were tested.Hifiengine user vglory88 writes: "Excellent small amp, comes on top as best value amplifier. Clean and crisp, very powerful sound"Reviewed Dec 24th, 2018 by vglory88From Revintages.com review:TECHNICAL SPECIFICATIONS Power output: 40 watts per channel into 8 ohms (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.04% Damping factor: 30 Input sensitivity: 2.5mV (MM), 150mV (line) Signal to noise ratio: 76dB (MM), 100dB (line) Output: 150mV (line), 30mV (DIN) Speaker load impedance: 4 ohms to 16 ohms Dimensions: 380 x 140 x 297mm Weight: 7.5kgSWEET FEATURES Phono Stage Input You may connect up to 5 sources (including two tape decks) Tone controls including Loudness and Subsonic filter useful for vinyl records listening Headphones Input Analog Meters Shiny faceplate Big aluminum tuning dial Very simple layout with just a few buttons to push You can connect two pairs of speakers and control them with Speakers selectorSOUNDKenwood has its own signature sound. It is warm, but still is detailed and layered. Lows are a bit punchy and energetic, but not too overbearing. Mids are excellent, with so much life to them. Highs are nice, not harsh, may be just a tad on the bright side, the sound stage is very accurate as well. Obviously, there are better sounding devices, but for the vintage component of that age the sound is just excellent!I Love the Kenwood sound and quality. For an old school integrated amplifier it sounds very clean and neutral and has proven to be very reliable. And it has unbeatable looks!"ALL ITEMS ARE DESCRIBED AS BEST AS POSSIBLE AND DUE TO THE NATURE OF USED ITEMS ALL SALES ARE FINAL. I treat buyers like I would expect to be treated. I am a hobbyist that buys items that need help, clean/fix them up, enjoy them for a while and sometimes sell them. I do not work on other people's equipment. If you need help hooking up anything you buy from me, just message me and I would be more than happy to assist.Check out the photos. The photos display exactly what this item is. I would like to guarantee this item. However, too many unprincipled buyers that strip parts and then wanted to return electronics as being defective force me to protect myself from this type of abuse. I will pack well and insure the package during shipping. One recent buyer stated that he thought that his unit could have been dropped from a truck at highway speed and still survived intact. If the shipping cost seems excessive, eBay seems to overestimate shipping costs so I have been offering to refund anything over the actual shipping cost. I tell them the size and weight and they estimate from there.Nothing else, no further warranties or guarantees are implied. This vintage item is being listed and sold AS-IS because of parts swappers, people hooking stuff up wrong and scammers.
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Kenwood traces its origins to December 21, 1946, when it was founded as Kasuga Radio Co. Ltd. in Komagane City, Nagano Prefecture, Japan, by a group of entrepreneurs led by William "Bill" Kasuga. Emerging in the postwar era, the company initially produced electronic components and amateur radio gear, renaming to Trio Corporation in 1960 before adopting the Kenwood name in 1986 to appeal to Western markets—blending "Ken," a familiar name across Japan and America, with "Wood" evoking durability and Hollywood. This rebranding fueled rapid international growth, starting with a U.S. office in Los Angeles County in 1963.
The brand built its legacy on high-quality audio and communications equipment, excelling in home hi-fi amplifiers like the acclaimed 1970 Supreme 1 multichannel model, receivers, tuners, and speakers with innovations such as polypropylene cones. Kenwood also pioneered car audio systems, including the first audio/video amplifier for home theater in 1981 and anti-theft cassette decks, alongside professional two-way radios and amateur transceivers. While maintaining roots in consumer electronics, it expanded into automotive infotainment.
Today, as part of JVCKENWOOD since the 2008 merger with JVC, Kenwood holds a solid mid-tier position in car audio and professional communications, prized by enthusiasts for reliable performance and aftermarket upgrades. Its vintage home hi-fi gear from the 1970s and 1980s commands respect among collectors for robust build and warm sound, though it no longer dominates pure hi-fi markets.
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