Tag Archives: Speakers

The Speaker Spotter – Speakers of Craigslist – March 7th, 2014

Posted on March 7, 2014 by jwk

There’s always something interesting for sale on Craigslist, especially in Seattle. Here’s a selection of especially notable vintage speakers and other audio products for sale on the local Craigslist. I’m not affiliated with any of these sales, but if you’re interested, you … Continue reading →

Posted in Audio, Collections, Photos, Speakers, Stereo, Vintage | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | 1 Comment

Ohm Acoustics Model D Speaker Refurbishment

Posted on February 21, 2014 by jwk

Classic speakers are always a delight to work on, and speakers have capacitors and other parts which require service, too. Over the years those components can fail and result in poor sound and even potential speaker damage. In this case, … Continue reading →

Posted in Audio, Hi-Fi, Projects, Speakers, Stereo, Vintage | Tagged , , , , , , , , , , , , , , | 1 Comment

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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First Ever Bose 901 Series 1 Active Equalizer Repair

Posted on July 25, 2012 by jwk

While some other projects have been pending information and parts, I’ve had a chance to work on the Bose 901 Series 1 equalizer that’s been on my bench for a couple of weeks. The equalizer is a necessary component of … Continue reading →

Posted in Electronics, Projects, Speakers, Vintage | Tagged , , , , , , , , , , , , , , , , | 37 Comments

Identifying Your Bose 901 Series 1 Equalizer

Posted on July 11, 2012 by jwk

Bose 901 Series I Active Equalizers came in two varieties, which can be used interchangeably, but have fairly different circuit designs. It’s simple to tell them apart for ordering parts for a repair with a quick inspection of the inside. Both … Continue reading →

Posted in Electronics, Projects, Vintage | Tagged , , , , , , , , , , , | 4 Comments

Found: Sansui SP1500 Speakers

Posted on July 9, 2011 by jwk

It’s been a little while since I’ve gone on my rounds through the salvage and recycling centers nearby. There wasn’t much out there today, but I did find a very good condition pair of Sansui SP1500 speakers. I already own … Continue reading →

Posted in Electronics, Projects, Vintage | Tagged , , , | 5 Comments

Refurbishing Vintage Sansui SP2500 Speakers (Crossover Repair)

Posted on April 5, 2011 by jwk

I’m always keeping my eyes out for interesting vintage hi-fi speakers from the ’60s-’70s, and found a nice set of Sansui SP2500s on Craigslist. Produced between 1960 and 1974, these beautiful walnut speakers are solid and very heavy – definitely … Continue reading →

Posted in Electronics, Projects, Vintage | Tagged , , , , , , , | 37 Comments