spritzer

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

The present KGSSHV design uses board mounted sinks to make it an easier project for the noobs (lets just look past the whole +/-500V aspect ) but I for one will also build the full, balls to the wall, version.

Must be a stupidity thing...

The Fluke's all have 10M input Z which isn't enough for measuring after the ballast resistor. A VTVM will do the trick though... The diaphragm to stator distance on any of the normal bias Stax models is 0.3mm which means the phones could handle at least 400-500V of bias if the drive voltages stay low enough and the air isn't excessively humid. I've run normal bias phones at Pro bias (580V) and it is fine as long as you don't push the volume to high. Now the Pro's will handle a lot more voltage, the SR-007 doesn't care at all about 900V bias... The thermal spec for any SS component is the junction temp which is impossible to measure properly. I for one wouldn't push any transistor much past 90

The problem I'm having is mostly to do with the horrible Zebra software. Too lazy to make up a new template though

Since the bias is essentially an open circuit then 233v before the ballast resistor is correct. Glad to hear the new caps worked well for you. They certainly are smaller too...

Let's have the mods do it. Can't stop them PM'ing you...

The Lp2844 is a nightmare. We have one in the bakery and the fucking thing is haunted...

I think this is just random or it could somehow factor into some new model scheme they are working on. I have no idea where the 4070 came from... I dunno but I placed a bid anyway...

Could be the baffle (normally aluminum) or some new form of plastic for the frame. Stax did the same with the 1987 Signature but never indicated what the change really was...

Crap, crap, crap!!!! Most certainly a new driver design so I have to buy one... Rumor has it that Stax will indeed release a new portable system but I have no details on it...

The only way is Stax...

Exactly but people might like the effect none the less. Stranger things have happened...

The Lambda Pro is very, very good but I prefer the original SR-Lambda, Nova Signature over all. My issues with the L-Pro are the slightly uneven bass and treble response plus the midrange is a bit recessed. Without direct comparisons to the other models you would have a hard time spotting these but they are there.

Don't you have SR-202's? No midrange "shouting" on that one...

Exactly.

Happy Birthday!!!

There have been rumors of a premium Lambda for some time now but I still don't see the point of it. Now if they had taken the 4070 and simply changed the cup design it would be killer but this... I'm not so sure... These bridge the two stators and protect them for voltage over 450V so you can damage the diaphragm

Not a close one at least...

I did fix one set of drivers permanently to the baffle and while it did make a difference, it was quite small and certainly didn't fix the midrange peak of the SR-404. Going by my experience with the SR-007Mk2/A this shout has more to do with the distance from the drivers to the ears which is why my well worn set doesn't have any. Either that or it is an Airbow SR-SC1 with the label on the plug removed... The baffle is aluminum and it is quite thick, 3-4mm.

But... but... the stick is so much more fun. Ohh well... the HD600 is a solid choice for anyone but they do need a good amp to sound really good which could always be an upgrade path later on.

Needs moar Jena...

So is there magic also involved with the headphones? I thought said magic only applied to the amps and naturally the cables... Never been a fan of the 650 but for the price it isn't a bad dynamic. Still I'd take a 600 over it for even less money...

At least you aren't doing meth... which would probably be cheaper and less harmful then all this high voltage...