eggil

It would be interesting to know how many functioning KGSSHV's are out there. 1 Kevin Gilmore 2 Spritzer 3 Horio 4 Dave 5 Blubliss 6 Victor Chew 7 Hdman 8 Johnwmcclean 9 Eggil 10 ??

I agree with Victor.It really sounds very tempting if it compares favorable to the KGSSHV. Even if it doesn't, I'd like some experience with tubes.

NVM

El_Doug, I was sure you would make it work!

Thank you Justin. XLR pin 1 is connected to the chassis only. When I connected the attenuator ground to chassis, it all works now, and clean as a whistle. No hum whatsoever. Per Victor's recommendation, I grounded the right + and - together; and grounded the left + and - to a separate post. It is like I bought a new set of headphones. The Sigma/404 sounds different in a good (wonderful) way. I am so excited I can hardly contain myself

Thanks Wink. Some people told me grounding the attenuator wold only increase the likelihood of hum in the circuit. I'll try tomorrow. Would you connect it to star ground then?

I am having some issues with my attenuator. I am sure is something really stupid. This is how I have my Goldpoint wired: XLR 1 (ground) to star GND XLR 2 (hot) to pot in + XLR 3 (cold) to pot in - Pot out + to amp In + Pot out - to amp In - Pot Ground not connected (the body is connected to ground but the individual wafers are not, at least when I check for continuity) This is how I wired it: (Thanks John) http://www.flickr.co...57629647470956/ I get sound but the volume pot does not control the volume. I am able to control volume directly from iTunes however. The pot changes resistance if I connect within the same wafer: ground to out If I connect IN to Out in the same wafer I get a decreasing resistance on the DMM. IN to ground ground gets me a fixed reading. I flipped the outputs from the amp to the Stax connector since I am using an off board version and the feedback is flipped. I have triple checked the wiring and it is done correctly per diagram. Any ideas? By the way, it sounds lovely! The first sounds coming out of it had to be Bach The Sigma404 sounds so much better. I am still afraid of using my 007, may be tomorrow.... Many thanks to Kevin for his design and help. Also indebted to Victor, John, Greg, Andy, and Livewire, and of course Spritzer. Pictures coming soon .....

I had said 2. I'd like 3 instead ( all pro bias).

Well, if you meant by input as the total amount I have spent so far, its is far more than 1G !

Anybody knows what the input impedance of the KGSSHV is?

I had the same problem the first time I powered my PSU with a 1A fuse. I am using a 2 amp slow blow without problems. I am going to order the 10 k Goldpoint. No patience to build a Joshua tree, may be later . It's killing me that I have a perfectly functioning amp and can't listen to it because I need a volume pot.

That's how I am measuring them; I get an open line (OL) from all of them now, when measuring In from one wafer to Out to the other wafer. If unable to fix I think I may try the Goldpoint instead. Too bad it has only 23 steps, but I have found myself using the share screen in another computer to fiddle with the iTunes volume anyway.

is one single wire. I opened it and all are soldered to the boards. I am stumped and will have to return it. We'll see how good their customer service is. I now get OL on all the stacks, but when I measure the In and Out on the same stack get 51K (I have the 50K pot).

One side of the pot is not working though. I get on open line (OL) in my DMM. John, I have the same pot you have.

I finished the wiring today. Balance and Offset are within 1 V on both sides. Problem is, there is volume only on the right side even with the volume down to zero, then it sounds equal on both sides as the pot is increased to about 12 o'clock Because there is eventually sound on both sides I figure the connections are fine; since the balance and offset are fine, sound like the amp is fine too. I did not ground the Pot. Checked all the connections, I flipped the O- and O+ because of the flipped feedback. I am thinking is the Khozmo. Not sure yet.

Spritzer, I'll take 4 if you still have a few to spare

You guys are worrying me. I'll take 4 instead, all pro

I would like 2 pro bias please

Thank you John. The Khozmo is a beauty. http://www.flickr.co...N03/7192195048/ http://www.flickr.co...in/photostream/

John, where did you get the feet for your amplifier?

Wow! Beautiful! Would you mind posting more pictures of the internals? Thanks Victor, I will

I think it applies to both the diodes and the 50k resistors: #479606 Posted by kevin gilmore on 09 November 2011 - 09:37 AM Sure enough, the feedback is flipped. Easiest way to fix it is to cross the 2 x 50k resistors. Or cross the 2 x 1n914 diodes. This is for the off board heatsink boards #479668 Posted by kevin gilmore on 09 November 2011 - 01:50 PM Remember that O+ and O- are now flipped, so wire accordingly to maintain absolute phase. .

I am using a rubber pad. And I like the idea of running the input wires. Ujamerstand, you forgot to cross the 50k. resistors, unless your board is a different version from mine.

Thanks Victor. I have to wait for my panels from FPE and the Khozmo, which appears to be stuck in New York 2 weeks after I ordered it. I have had the amp on and off for hours without a glitch. Unfortunately, I have not been able to listen to it. I am hoping I can take it to the LA meet in August in nothing blows up. http://www.flickr.co...in/photostream/ http://www.flickr.co...in/photostream/

Thanks John. Just ordered some.