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FS:Technics SL-1200MK2 Turntable (Black)
I purchased this from my neighbor many years ago and it's working as it should. It has not been passed around on eBay, CL or used as a DJ table. It has the internal grounding upgrade installed so no...
View ArticleI need a Green solution for Class A power amp cooling
I want to cool the external chassis-actually the heatsinks-of this Class A biased audio power amp https://passlabs.com/products/amplifiers/xa.5/xa30.5 I intend to operate below its 30wpc rating so as...
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Rough idea for SEOS 12 in a TV pedestal sound bar
Friend wants me to build a sound bar for an apartment. No true sub woofer, too much for neighbors. Wants great clear sound with some bass. His TV sits on a credenza thingy about 4 feet long. Tv is...
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Opinions On This Easy DIY Design
What do you experts think of this design using off-the-shelf PE components. Any suggestions for improvement would be greatly appreciated. OK, here it is: Peerless 830883 6-1/2" Nomex Cone HDS Woofer...
View ArticleDenon 2809ci Audessey Setup Mic
Does anyone know if I can use any ol' microphone (I would buy a good omnidirectional one) to use in the audessey setup for my denon 2809? I'm resetting the chip because (don't know if anyone has had...
View ArticleExperience with Madell CA4810A Transistor Curve Tracer
My preferred seller of semiconductors honored me to ask my opinion about this curve tracer... Madell CA4810A Transistor Curve Tracer Madell Technology Corporation I personally use the curve tracer from...
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The making of: The Two Towers (a 25 driver Full Range line array)
After riding along on a few different line array threads I figured this project deserved it's own thread. I wanted to get new speakers for my living room for a while but could not quite find something...
View ArticleFS: 500VA and 800VA toriodal transformers!
I have a few toroidals for sale. I am just getting rid of a bunch of old parts I never use. All are in good working condition. Here's what I've got: Avel Lindberg 800VA 60V (6.7A) Secondaries: (no...
View ArticleFS: IRAUDAMP7S evaluation board
I have an IRAUDAMP7S that I got awhile back that I'm not going to use. It's new and comes in the box and has some 6800 uF caps with it. This was directly from IR as a sample (I work for an electrical...
View ArticleJansZen Electrostatic Panels and Crossovers
After a few years of sitting in a box, I never got around to using my JansZen ESL drivers, so they're up for sale. You can find out a bit more about them in this thread. I have a total of 8 panels, and...
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re-amping an old sony system, first project, suggestions please
So I had found this sony sa-va system in a dumpster and used it in my garage for years. It bumps very dynamically, it has a great sound. I live out on a large property and have a hoop house art room...
View ArticleHeadphone amp/preamp project.
I have been considering building the Jonokuchi amp, but got to thinking that I would want something that would work well as a preamp in my current setup. I considered building an integrated amp with...
View ArticleZA5.5tt Tower Speakers
I have been looking around like crazy trying to find the perfect tower speaker for under $1000 to use for a Home Theater FL and FR. I would love if they could be used for both HT and regular Stereo...
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OTL question
I saw this circuite on line and wondered if I subsituted a 6c33-b for the 6as7's using a 5ohm cathode resistor about how much power would it be good for. I know using a pair of 6c33c-b tubes at 150v is...
View ArticleHandling inactive inputs in source selector
Like so many others, I'm building a source selector/attenuator; in this case the source selector will be a bunch of DPDT relays run by a microcontroller, shift register, and Darlington array. What's...
View ArticleHow to Choose the right Drivers
I have read hundreds of tutorial on speaker building but non of them give a clear description on how to choose the right drivers. I have a feeling that it is possible to make a High Quality with any...
View ArticleAmp Assistance
I need some advice. First off, let me state that I'm in need of amplification as a component for a larger project that has a lot of work yet to be done. The amplifier(s) for this project are not an end...
View ArticleSchematic Needed Realistic STA-65 (original)
Unit has two bad channels, no hum, just no sound jfrom one and extremely low gain from the other, no odors or smoking. Yet. This is the original STA-65 from the late 60s, not the 68b or 65c which I...
View ArticleBehringer Super-X Pro CX 2310 Crossover
Behringer Super-X Pro CX 2310 Crossover. Excellent shape. Used once. 2 Way stereo w/sub output, 3Way Mono. $50 plus shipping and PP. Thx
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