luvdunhill

I have plans to use styrene box caps for the RIAA filter and need to parallel "a few" to get the right values. We'll see once they get here if this is feasible or not.

excellent!

nope, those are Steve's. I have something totally crazy lined up for mine... waiting for some parts to arrive. Let's just say that I have 100 or so caps per board. The replacement zeners shipped on Friday, as well as a few more parts. I have some matched parts on hand I can ship out for the "over eager" They're matched by Idss, which is sorta the "normal" way of doing things. Anyways, maybe I'll make my first shipment on Friday of next week? The next week I'll be on a business trip to visit "The Evil Empire" in Seattle, so I'll be out of town... Have you decided on a case, or perhaps tested the unregulated supply portion of the circuit? If you're going to do some sort of LEDs, I'd attach them to this portion of the circuit, before the boards.

hm, I might be interested in some quick and dirty transplants ... I'm looking for a pair of low-Z headphones and perhaps these might fit the bill... what's the standard cheap donor recommendation for these?

I'm lazy but.... 2 questions: A.) what are the impedance of the SFI drivers B.) swt61, did you ever whip up something with these? C.) Morbier

he's the only person I trust to do a switching supply properly... but yeah, the older gear is pretty sweet.

next meet you attend, let me know and I will see what I can do. I just acquired a second Bitstream (stock not modded)... The optical is busted though... shipping would be pretty cheap, as it's pretty small. Doesn't hold a candle to the modded versions, but it's a taste

yeah, join the team!

I dunno, people are just going to recommend what they have. I have an older Muse Electronics Model 9 Signature and recently had a chance to demo one of Kevin Halverson's newest players, the Erato II and I really liked it... a lot. It's probably the only hi-res player I've heard that has a very natural, fluid presentation. For example, I find most hi-res players to be artificially detailed. There is a certain "wow factor" in for example the Cambridge Audio players in the top end, but when you sit down and really listen, this extra resolution comes at a price and other things suffer. I find that components that have this sort of immediate wow factor rarely stand the test of time in my rig. Other than single box units, there are some good external DAC options out there as well... just depends on your setup and sonic goals.

else

told ya.. we have some more that will be released soon.

cool! after you've soldered them, try again.

finally getting around to finishing this. Waiting on FPE to see if they can do elliptical holes

or lots of quarters.

I use telnet for all my browsing needs

Steve: Looks great. How will the heat sinks fit? I bet you're going to have to shave 0.25" or so off of them... DigiPete: Yeah, this is a worry, but the toroids will be a considerable distance from the input, which is the most sensitive anyways. I think he'll be fine. Otherwise, anyone have some big ass tuna cans?

Just paid for the Promitheus Audio TVC!

I thought I had already uploaded this .. oh well, I made some progress on Monday night:

250 2SJ74 JFETs (50 V grade, 200 BL grade) yum! edit: oh and 50 pairs of Hitachi 2SK216 / 2SJ79

buy a mini / desktop CNC mill.

"We design our equipment not to sound like anything...At Purity Audio, it's all about the sound". Therefore, Purity Audio is all about nothing?

what about driver compensation networks for open baffles?

yeah, this is what Sowter recommended I do with the second transformer for conversion. I think the key is to avoid Permalloy / mu-metal and thus allow higher voltages. I'm talking with 2 people about custom units from either grain oriented steel or a 50% Permalloy solution. They are saying that I can get maximum input voltage up to around 25 VAC this way. The other option would be an air-gapped core, but that will reduce inductance by a factor and make the unit less suitable for volume control. Now the question is how much DC these custom units can handle (since I'm moving away from Permalloy) and if I can use them to replace the coupling caps as well... stay tuned!

Same Morel midrange I'm using. Very nice, but definitely a "different sound".

Just wanted to add this informative link to the thread: ecp.cc