which one of these seas tweeter sounds better?Exotic T35 X3-06 or Excel...
both of these dome tweeters have same dome but with different magnet structure. one with Neo and another with Alnico. I would like to know what is the benefit of Alnico ? do they sound significantly...
View ArticlePC board design for PSE amp
Hi, I want to design a PCB for my PSE amp. Simple circuit, one paralleled driver tube with CCS connected to two paralleled pentodes. I've done a few PCBs in the way past for digital I/O and such but...
View ArticleClik here to view.
Castle Speakers 'upgrade'
Hello guys, I wonder if you could help me with an 'issue' I have. I've a pair of Castle Howard S1 speakers, and it's bigger brother, the Winchester. They are now >18 years old. I've always loved the...
View Articledual concentric tweeters pros and cons?
what are the pros and cons of dual concentric tweeters? which sounds good dual concentric or non dual concentric like the one in scanspeak 9900 or seas exotic tweeter..
View ArticleAlpine MRP-M1000
I replaced the outputs, The 2 driver IC's -(IR2010) Also replaced IC1801-(4560) and ZD9302 and Q9302 the regulator (B631K) Amp powers up and idle's fine Amp has no output and the B631K and the 2...
View ArticleGood cheap mini full-range? Matrix array design.
I'm looking to play around with some DSP algorithms to try to replicate a Yamaha Digital Sound Projector. If you haven't looked into these yet, it's the only real soundbar on the market that gets close...
View ArticleClik here to view.
Capacitor ID
and the other side... This is a 1uf capacitor (polarized) - will any electrolytic suffice as a replacement? This is the only odd-ball cap on the board, perhaps there was a reason it was chosen....
View ArticleCounterpoint sa-220 Manual 's wanted !!!
:headbash: Willing to purchase owners manual and service manual for Counterpoint SA-220 AMP, also looking for faceplates,and non working units Joe 773 301- 6578
View ArticleClik here to view.
Echo Amb Bias Confusion
I just got an early '70s Japanese Echo Custom Amp 30 head, and I'm very confused about the bias system. All the amps I've worked on have had cathode bias, with a cap and resister from the cathode to...
View Articleovernight sensation - very bassy
Hi, I have just put together my first kit speakers - the Overnight Sensations, as sold by Parts Express. I haven't yet screwed the drivers or port tubes in, but held in place with gorilla tape. I've...
View ArticleNew Ohio Member, First Speaker Project Photos
Been meaning to join for awhile. Attached are pictures of my first DIY loudspeakers, As you will see I used the Fountek fw168 6.5 mid woofer with an SB acoustics SB29RDC tweeter. X-over is 2nd order...
View ArticleBeaglebone phone quality audio, how to?
Hi, first time on this forum. I am using a Beaglebone for a home automation project, and I want to add two audio input/output lines. They can be phone quality, but my question is, how do I connect the...
View ArticleClik here to view.
ESS9018 I/V
Hello guys, I'm just looking for an easy and cheap tube I/V for the DAC ESS9018: I own Buffalo III DAC, I'm interested in your opinions about Lukas Fikus schematic using 6sn7, any suggestions to...
View ArticleAux Input - Tea2025 Amp Noise
Hello! I'm not sure if this the correct forum to post this question in, if not please point me in the right direction. Here's my situation. I was bored at work and thought that it would be cool to tap...
View ArticleClik here to view.
grounding RCA inputs
This is my preliminary setup a little tuning for tight fits and I can start hardwiring. My? is on the RCA inputs(right side) do I shield these coming thru the alum. top and ground just the one lug. The...
View Articlerunning a preamp tube in class B!
I have a tremolo circuit here using a 6au6 with no bias at all. There's no cathode resistor and no other source of bias in sight. After puzzling over it, I've come to the the conclusion that it was...
View ArticleClik here to view.
Tangband W3-881 MLTL build
We'll I've been reading up on all the single fullrange MLTL using the now sold out tangband 3" and really got hooked on how good these little guys can sound. I had 8 of these in two sealed cabs. No...
View ArticleSpring cleaning - free items (just pay shipping)
Spring cleaning in the closet. Wanted to post the stuff here before they end up in the dumpster. Just pay shipping from ZIP 07605 for the items you want. It should all be in working condition but if...
View ArticleWhat is your every day amp?
Simple question, What is your every day amp...post a picture..is it PP or SE/other..:D How often do you use it? Regards M. Gregg
View ArticleA/D/S ph15 need advice
i ordered this amp, it should be here next weak came with crossover i have a plan bridged all channels, use 1-2 and 3-4 as full range, 5-6 to run a 150watt 15 i have heard this amp will not run a...
View Article