spritzer

One thing computers do very poorly is ground plus noise and other garbage riding on the power rails. I for one have a unit that offers the ability to use a separate PSU and there might be a small difference compared to powering it off the USB bus. Now my PSU cost me absolutely nothing (old Iomega Zip power brick) so why not use it...

That's one of the reasons why this is a prototype. The heat has an easy route up and away from the boards but the main heatsinks might be a different matter. There is also the issue of warmup as this massive billet might take a while to heat up...

I do have access to some crazy expensive thermal camera if I ask nicely enough quite frankly I'm not too worried about the thermal properties of this thing. We'll see when I get the boards mounted though. As you might have spotted already, that riser in the side of the chassis doesn't work to fix the transistors in place. I'll have to a spreader and then mount that to the chassis.

The B22's have an annoying habit of burning up under some circumstances so ditto on it just being a blown fuse.

Yup, pretty much anything can give enough voltage for the "moar loudz" idiots but the rest is trickier.

The rated sensitivity of the transducers tells you everything about how much real power they need to reach a certain volume level. This naturally doesn't account for wild changes in impedance and the crap that goes with it. I also hate the crap about this amp can drive full size cans just because it is loud enough. Fucking retarded idiots have no idea what they are talking about...

Simply stating some power rating is highly simplifying the matter IMO. How the amp handles the load is far more important than some number taken out of thin air. Can the amp retain it's full voltage swing into any given load or is it far from linear?

Shit for brains barely covers kw's level of stupidity...

I like that... Hehe, there should be plenty of it left over once all of the "production" chassis are done.

The TKD 2500's are available with a motor...

Pictures can't really describe just how nuts this chassis is. Ohh and worst case Antonio, I'll take a look at the 717.

Here is one of the many projects I'm working on and it is intended as the last stand for the classic BH design. The back story ties in with the whole T2 project and that Torpedo was invaluable in acquiring the amp for me. Now we started talking about building a Blue Hawaii for him using the pile of boards I have here and to cut a long story his friend Paxti got involved as well which is a is a good thing since he owns a machine shop. We all had the same vision which is to go stark raving mad with this project using the best parts and not to cut any corners. Now the ultimate chassis has to be something milled out of solid aluminum and that's exactly what we decided to do: What we have here is a 16kg lump of special aircraft grade aluminum machined to perfection. Now this is only the prototype for me to do test fits and to iron out issues but it is a beast to say the least. The PSU will be in a similar chassis as well though probably not as big. The "production" version of the amp chassis will also be smaller with quite a few changes but this gives a good idea of just how impressive these amps will be.

It was indeed never a production item as Stax went bust and all R&D not involved with the earspeaker line was dropped. There are small nuggets of info all over the place which hint at what they were trying to do.

If you want something truly insane I'd recommend DIY'ing the ESL horn system Stax were working on in the early 90's.

It took me 3 days to get LSK's from Trendsetter and they had plenty in stock. I'm glad I got the bright idea not to start drinking coffee even though I go to work in the middle of the night. Now my Pepsi Max habit is probably worse though...

I'm pretty sure they are better then a standard Lambda but I don't think they took the design far enough. What makes the SR-007 so good is the utter overkill in terms of chassis design and how the earpieces are coupled to the head. Put the same drivers in an SR-Omega chassis and the superiority of the SR-007 frame becomes quite clear. With the SR-507 the big question is really how different is the new driver design and how are the drivers attached to the baffle. The Lambda/Sigma drivers have always been mounted with double sided tape to the baffle which is far from optimal imho. Some form of clamping mechanism would be far superior and provide the mechanical coupling the drivers need to get rid of any resonance. My ideal Lambda would really be an open version of the 4070, same arc assembly but the drivers mounted in an aluminum/resin sandwich.

Congratulations Dad!!!

Not only that but a lot of very expensive DHT's... . I'll build one sooner or later though

Reading between the vague marketing speak, the drivers are the same size but now everything inside them is smaller to accommodate the external frame. Less panel area which wouldn't be a bad thing but I can't wait to get my grubby hands on one of these...

When I had the SRM-T2 project I looked up how much heat it would take to cook an egg. Turns out to be 60

Hehe, I had all but forgot about that little bugger... I'm listening to it now off my APL and it has no right to sound this good driving the SR-007.

Happy Birthday little guy...

Well there are always those 2100V transistors...

The original with chassis mounted heatsinks running at full power. Working with side mounted sinks takes a lot of work and skill which most of the people building this amp simply don't have. So now there is a less powerful version with board mounted sinks which anybody can build. This will be the standard DIY version with the PSU also using board mounted sinks.

You need less than a minute to know the KGSS eats the Exstata for breakfast unless you honestly think that's how your headphones should sound. I've gone further then most to test this too and used the exact same PSU, pot, etc. to test both circuits and it isn't close. Still the Stax mafia approved Exstata isn't far off and that should make things more interesting. I really have to get cracking on that PSU though... This is NoNoNoNoNoNo though, we all know he's got some serious mental issues