Dayton Audio's New 15" & 18" PA Drivers - B&C Copies?
I was just browsing around Parts Express and came across two new Dayton Audio PA subs, which have about double the spec's of their previous PA subs. It looks like they stove to copy B&C drivers....
View ArticleRandom Amp questions
Thought I'd start a thread for this. I am into another amplifier design. This time its on strip board. And I'm likely to have many more odd questions. It's basic topology is a diamond front end, beta...
View ArticleFirst Multi-way Build. What to build for a big room?
After successfully building the Pensil full-range with JX-92S's, I'm ready to venture into my first crossover project. My parameters: 1 Relatively easy electronics for a novice. I've built a few kits...
View Articlewtd: Nytech cpa602 - any condition
My dad is searching for one of the above, working or not. Thanks, Mike
View ArticleLowering the AC Votage to my speaker protetion circuit.
Hi Guys, I am finishing up an amp build and had planned to install a speaker protection circuit. The circuit I have requires 12V-15Vac supply. The transformer I am using in the amp has a separate...
View ArticleUSBStreamer>MiniDSP>Curryman DAC
Hello Everyone I am just starting again on my adventures through the áudio world :) I just purchased the MiniDSP together with the USBStreamer for use with my PC as source. Can anyone share a diagram...
View ArticleHickok Tv-7D/U A Setting not working
So I got a little overzealous yesterday in trying to replace my 5Y3 rectifier in my TV-7D/U which operates the "A" setting on the tester. After replacing the rectifier tubes tested "warm up" but when I...
View ArticleAnother newbie from Arid-zona!
I'm a retired electronics engineer who initially learned about vacuum tubes from my dad (retired electronics Chief) and then from USN ('63-'71). Spent 10 intervening years working as electronic...
View ArticleJL 500/1 repair - smoking resistor R517
I've got a JL 500/1 Rev 11 I'm trying to repair without a schematic handy. Two output mosfets blew, Q504 and Q505, as well as a few on the power supply, Q600 and Q606. It looks like all the gate...
View Articlejl audio 300/4 front right channel has heavy distortion
i have a jl audio 300/4 that has distortion on the right front channel ,all other play fine .No repairs have been made to the amp it was a local trade in .bad channel has higher BIAS then others as...
View ArticleNet box volume after stuffing
Please tell me about your experience on the apparent change of the internal volumen of a box after stuffing it. Beranek says that changes as big as 20 % could be expected.
View ArticleHow Speakers Work
Sound is a sensation produced by mechanical waves traveling in air. In loudspeakers, such mechanical waves are produced by a vibrating membrane. Such a membrane could be a paper cone, a cloth dome, a...
View ArticleHey Ray...How about a Tube Phono Stage?
It's been a while since I last asked about this...And, since then I've gotten a 'Little Bear' Phono Stage. This is a Great Tube Phono for the Price, but It can be made Better with a few Simple...
View Articledayton DATS info
im considering picking this up in the near future. i was wondering if any members here had experience with the unit? Im mostly interested in using it for speakers with dodgy claims (like mcm). the ne...
View ArticleDIY indoor FM antenna idea. Will it work?
Hello folks. I recently purchased a vintage Sansui 661 receiver. The FM reception in my home is next to zero, so I have an idea for a antenna. I need some input to see if I'm wasting my time with the...
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Grace F9E Cartridge Body Modification question
Just got this Grace F9 MM cartridge with the Type 1 Elliptical Stylus...I am intending to replace a Shure v15 TYPE 2 with hyper elliptical stylus and a Astatic Moving Flux MF-200 with bi-radial stylus....
View ArticleThe Muscovite Mini 6ж9п (6Z9P) Phono Stage
This design is intended to be the more economical little brother of the Muscovite http://www.diyaudio.com/forums/analo...honostage.html. Like the Muscovite it offers high gain in the region of 54dB...
View ArticleCreate speaker from EV DH1506 w/horn and EVM12L?
Create speaker from EV DH1506 w/horn and EVM12L? Greetings. Executive Summary: I have come into the possession of: - Three DH 1506 drivers - Three EV horns (16 deep, 9x24 length/width) - Three EVM12L...
View ArticleThe unparticle
Just for interest, The unparticle :D Search for 'unparticles' focuses on Earth's crust - physicsworld.com It would seem we now have the un-particle? And the question, is the answer to dark matter...
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