spritzer

Hehe, I'd say it was the other way around.

I would use any good caps that fit, no audiophile nonsense for me. The stock caps are 15+ years old and way past their prime and since the PSU is unregulated it will have a large impact on the sound.

No resistors, just direct connections to the connectors on either side of the transformers.

You gotta try a SR-007...

The best sub 1k$ Stax amp you can get is the 717 so that's what I'd shoot for. You can also do a once over on the SRM-1 Mk2 (replace caps with fresh ones and adjust the offset) which should give you a nice performance boost.

Not stiff enough...

Damn memory foam isn't that comfortable for me. The floor would have been better. That's why we drink so much. The only way to truly rest is to pass out...

Well a newer tube amp for the SR-003 could be the DIYT2 but unless you have 18K sitting around that isn't really an option. The Blue Hawaii is also great... Any particular reason why you'd want a tube amp?

I always push headphones a bit hard when testing them and it does bring out some extra thickness in the bass. It wasn't a huge change (not like the SR-Omega for instance which really doesn't like high SPL) but noticeable.

Certainly better drawn then anything I've ever posted. I second a 5M resistor and a voltage divider to shave off a bit of the bias voltage.

It really is but it dawned on us that besides KG and me there wouldn't be a whole lot of interest in this beast. I'm also a bit on the fence since I already have a SRX...

The new ones have solid PVC film for dust covers on both sides (which shouldn't let anything past if they aren't damaged) but the older sets (pre 1993) have PVC on one side and woven nylon mesh on the other.

I'm not responsible for that one...

Load isn't an issue here and the amp will run just fine without one. No need to turn down the volume when switching headphones but some are less/more sensitive then others so beware of that. The bias is 580V and no need to alter anything here. It will drive any of the high bias headphones just fine like that. The modern Stax headphones do not need the dustcover but something like the Sennheiser HE60 needs one. If you have any specific questions then just PM me ohh and welcome to the mafia.

If we can make cases cheaply then the SRX based amp also comes into play. It is the same board size but with CCS on the output and the same PSU.

Sounds like I'll have to make that Mayberry meet... Just checked the direct flights from Iceland and holy fuck they are expensive. So how do you like the 7403's Frank? I have some 3d21a's too plus 807's and some other tubes Marc made me buy...

Many of the electrostatics are wired out of absolute phase and I can certainly hear it. HE60 comes to mind and a number of the older Stax models...

Are those 7403's? Other then that, no comments from me besides basic questions about the circuitry.

So true...

Indeed. I for one would love a serious contender to the SR-007 just to make Stax bring out something new to crush it. Well that and I want them to increase the bias since it's limiting new amp designs... The cable it self is fine but in terms of ergonomics it is terrible. Too stiff, heavy and it extends far enough from the housings to drag across the top of my shoulders if I moved my head. Something like what Smeggy is using would be much better. Damping could fix it but also altering the earpads and making sure the fit is better i.e. a better seal around the ears. I'm already forgetting what amp I tried them with but it was all of the Woo amps (I had pretty much free reign there for an hour and a half) and I think Scott's Dynamight. Damn I want to build one of those... Too forward, edgy and tiresome too listen to basically.

I bit late to the party but yay for Fitz!!!!

No vomiting on Friday that I'm aware of but then again he was in experienced hands. Some pasta, water and a couple of hours of sleep made all the difference.

The only difference using XLR's is more input voltage and thus more ultimate voltage swing. That's it.

Yup.