Tag Archives: audio

Bose® 901 Series I Active Equalizer #6878 Repair

Posted on February 20, 2016 by jwk

This early-production Bose® 901 Active Equalizer came through the shop recently for a repair. These Early models were the very first production run, back in 1968, and have a pretty significantly different circuit design from the later models, and feature … Continue reading →

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Mailbag: Is The Bose 901 Equalizer Really Necessary?

Posted on October 21, 2013 by jwk

I take questions from readers often, but they don’t always make it to a Mailbag segment. I’ve got this one a few times lately, though, so I figured I’d answer this one publicly. Jim from Ohio writes, I bought a … Continue reading →

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Thrift Store Jamo MPA-101 Repaired – She’s Back Up and Running!

Posted on February 11, 2013 by jwk

I started working on a Jamo MPA-101 amplifier back in August for a friend and after some early work it sat for a while. He’s re-doing his audio system at home so I spent a few hours to finish troubleshooting … Continue reading →

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