Bonzo Posted April 26, 2019 Share Posted April 26, 2019 To make a short story long, I recently picked up a restored Kenwood KA-7002 integrated amp, circa 1971, from a local tech. It was pretty much dead when he got it. After we made the deal and kind of in passing, he said this amp does not have a speaker protection relay. He said of the three schematics he found on line, all showed a speaker protection relay under the bottom plate. The only speaker protection is two 1A fast blow fuses prior to the output. Not thinking much about it, I took it home. After some further inspection, I noticed it did not have a serial number. There was a place for the serial number on the back panel tag but no number. I removed the top and bottom panels and took some photo's. One of the Kenwood guys over on AK who owns and restores 7002's, noticed the heat sinks were aluminum but not painted black as are all the examples he has seen. Kenwood advertises the speaker protection circuit in their literature for this amp so you would assume the units sold to the public had it. There were no holes in the chassis to indicate the circuit was removed and no numbers stamped on the chassis either. On the right side of the chassis under the heat sink, hand written in black ink is "No 1." It was his opinion that this is possibly a prototype and/or certainly not intended to be sold to the general public. How cool is that! It does sound great through the Heresy I's but has a couple of minor quirks. There is a little noise through the tweeters but can't be heard more than a foot away. Kind of like most vintage tube amps I have owned. Running more than one set of speakers at a time reduces the volume a bit on both. Both speakers are 8 ohms and I only plan to use one pair at a time. It does have a very good phono stage, better than my Marantz 2238b. That's my story for now. I am thrilled to own it. Here are some pics. On the lower left of the last picture, you can see the two fuses and two stickers which read, "1A (6 x 30) SCHURTER." Just thought I would share. Thanks for reading! Quote Link to comment Share on other sites More sharing options...
Fattner Posted April 27, 2019 Share Posted April 27, 2019 love it !!! Quote Link to comment Share on other sites More sharing options...
Rivernuggets Posted April 30, 2019 Share Posted April 30, 2019 That faceplate looks awesome. My grandfather owned and sold his KA-5002 to my parents when I was young. I did a lot of listening on that model. Except for the Bass/Treble area it's the same as your 7002. Enjoy! Quote Link to comment Share on other sites More sharing options...
Burnell Posted June 3, 2023 Share Posted June 3, 2023 Very cool Bonzo! I have a Kenwood KA 7002 that I bought in 1971. One channel has ceased to work - can you refer me to "One of the Kenwood guys over on AK who owns and restores 7002's" that you mentioned? Quote Link to comment Share on other sites More sharing options...
billybob Posted June 3, 2023 Share Posted June 3, 2023 14 hours ago, Burnell said: Very cool Bonzo! I have a Kenwood KA 7002 that I bought in 1971. One channel has ceased to work - can you refer me to "One of the Kenwood guys over on AK who owns and restores 7002's" that you mentioned? Welcome! Would go over to AK to ask as @Bonzo topic here is a little dated. Anyway, maybe he will respond. Cool... Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted June 3, 2023 Share Posted June 3, 2023 One should keep in mind that the repairability of such items is getting sketchy due to the availability of obsolete components made from sand 1 Quote Link to comment Share on other sites More sharing options...
Burnell Posted June 5, 2023 Share Posted June 5, 2023 Not sure what or where AK is? 1 Quote Link to comment Share on other sites More sharing options...
billybob Posted June 5, 2023 Share Posted June 5, 2023 28 minutes ago, Burnell said: Not sure what or where AK is? Audio Karma... Quote Link to comment Share on other sites More sharing options...
Ceptorman Posted June 5, 2023 Share Posted June 5, 2023 Early 70s audio equipment just have a very cool look to them. 1 Quote Link to comment Share on other sites More sharing options...
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