spritzer

There is nothing physically wrong with them, it's simply a charge impeding the driver. Said charge will dissipate over time and the driver return to normal. As to why this happens, I have a theory that the stators generate this effect due to their construction.

Also the 009 drivers aren't broken since they will bounce back.

Nice catch, it's indeed reversed. Do you have any pics off the bottom of my amp? It has some crazy stuff going on there...

The ad is indeed rather misleading when it comes to the inputs. Only one should be used at a time. For the volume control, I've no luck finding a replacement which would work on the PCB outside of a custom order. Alpha has a nice 9mm option but that would take 500-1000 units... The TKD 4CP-601 might fit but it's an odd size so the best bet is probably to move the pot to the front panel and run 9 wires back to the holes for the old pot. I'll post pics of this when I'll get my amp. Also, some components really need to be replaced as they are overloaded as it is. Using a RN60D where we used a 3W resistors in the stock KGSS can't be good.

Mmmmmmm.....

Ain't that the truth.

New PCB too with output resistors. Still a mess though and those heatsinks should be soldered down and grounded. As for the pot, it is a linear unit (says 50KB on the back) with resistors to fake the log curve. This never works correctly so I for one will just remove it and put in something else.

No starter is that old, all the germs have long since been replaced by what ever is in the environment. That's why there is no way to move a specific germ from its local such as the one found in San Francisco. It can't grow anywhere else artificially unless you'd use lab grade environment. We can buy specific starters which are made in various places but they will last two weeks max, then enough of the germs have been replaced so it isn't original.

They eat up 10W in the crossover alone...

Happy Birthday!!!

Happy Birthday!!!

Happy Birthday!!!

Looking good!!

Those are BJT's... I I doubt you've killed a resistor while doing this so simply swapping in all new transistors should clear it up.

Better yet, just get some of the Japanese models to begin with. You have probably done a lot of damage doing something wrong so the best bet would be to scrap all the small transistors. Also clean the flux on the output devices. It can short... You mean upper left? That is supposed to be there as the LED is part of the 2SA ccs.

Also crazy expensive. Skeleton is made from carbon fiber, just because they could.

On the 0.4 offboard amp boards the feedback is flipped so either cross the 50K resistors or the 1N914 diodes. I crossed the diodes but it doesn't really matter... Correct on the parts marked with a A but not the 180R being changed for 250R. That's for when you use IXYS parts as output devices plus some other changes. This resistor sets the current through the output stage so you can play with it a bit. Wouldn't really go lower than 120R though... 1K and 1K2 are for the IXYS CCS. You can't mix and match the old Japanese transistors and the new On semi stuff, different pinout. Use the global feedback as the amp was always meant to be used. Larger caps can be used but they also mean far more bang is something goes wrong. The 0.6 psu board works just fine but keep the caps off the board and made sure that all solder joints are very clean and precise. Overhang even close to the ground plane can end very badly. Kevin and I have never done any BOM's so I have no idea what's in them. That said, any major sonic difference will come from changing the output devices. The rest will be more or less the same assuming the parts are all of equal spec.

No problem supplying you with a stable board design Christian. +/-400V means you can use current made parts and BJT's for the output devices, go any higher and you need to find out of production parts. The KGST vs. KGSSHV will be clear soon enough when I get some boards and can get building. So these then? http://www.aavid.com/products/standard/531102b02500g It's Europe, everybody is in a union. Though they not like in the US though...

100 of them take up a bit of space so I imagine 1400 could take up a pallet...

I like that one a lot. Something about the difficult ones...

Hmmm superconducting flooring would make millions!!!

I could always send Justin the highly modified LL1 to measure. It's not like it isn't just gathering dust here but it wouldn't give the right impression as unlike the stock version, it's not a shitstorm of distortion. I have an Exstata too somewhere though it was a highly modified version. One amp I'm truly interested in seeing measured is the SRA-12S as it was their first foray into solid state. The T2 was a crazy project, we haven't done one of those in a while. I've been gearing up to rebuilding the amp section in mine and reworking the PCB design quite a bit in the process.

Both I'd think. There is a picture in the largest national newspaper here today of a high end system (Pass pre and power amps feeding ESL2905's) and it has those idiotic stands too.

Hot off the presses, KSSHV mini THD measurements. I asked Justin to measure my first prototype of the mini and here are the results: Compared to the BHSE measured using the same setup: This is very impressive indeed and I'm sure the second version is a bit better as I switched to 2SC4686A's for that one for lower Cob.

Higher voltage means less current so easier to power using regulated DC. No possible to do on the current boards without cutting some traces.