kevin gilmore

That is all that is hooked up now. Don't have the balanced processor/preamp yet. (vaporware)

I really love mine. Don't know what to say other than that. Better than the krell sacd standard. 2 channel balanced output. hdmi output. Don't know about the super expensive sony piece other than it does NOT have hdmi. Does not even have balanced. More of sony's unplugged fly by wire approach to management.

Labcenter Ares 7.1

Output export types are bitmap (no holes seem to show thru) metafile (never figured out how to use this) dxf (don't have autocad) eps vector (useless as far as i can tell) overlay (not even sure what this is)

I don't remember. If you make a board that can take all of them, you can populate only half if you want to. Probably makes absolutely no difference unless you are driving 8 ohm speakers.

Remember that all the board files i posted use the dual jfets and the dual cascode parts. All of which are almost impossible to get.

here are the 4 board layouts suitable for production http://gilmore.chem.northwestern.edu/dynahifeti.zip http://gilmore.chem.northwestern.edu/dynahifetihs.zip http://gilmore.chem.northwestern.edu/dynahifetr.zip http://gilmore.chem.northwestern.edu/dynahifetrhs.zip schematic above is correct except that i doubled the number of output transistors.

If you spend the time and can actually get the parts, you can do much better. These days, getting the parts is the hard part. The other thing is that most opamps are limited to +/-15 volts. If you want something in a class above that, it has to be discrete.

See here is the problem. You can't have good pnp's and npn's on the same piece of silicon no matter what you do. You optimize one, or the other, not both. One has to be vertical, the other has to be lateral. In theory with really well matched discrete parts, you can do much better.

brand new auto rethreading edm machine

I'll definitely take a number of heatsinks. As a quad, it would be cool, but doing a rip up of the layout to get all 4 input fets close to each other might be rough.

I'm very interested in the edm cut heatsinks... Did not even think of using an edm that way. Have a brand new edm that i'm going to have to learn. Those don't look edm'd though, unless they were anodized afterwards.

True of course, but i bought one on the strength of reviews so far. And the sound quality is absolutely fantastic. Plus its one of the first units to have uncompressed and un-encrypted hdmi output. Certainly not built like the teac esoteric machines. But sounds so much better. For $1200 if it lasts 4 years, i'll toss it and get the latest and greatest machine. No more $12k krell boxes that have $10 plastic loaders that cost $2k to replace. That is just plain stupid. Krell needs to pull their heads out of their asses and release a krell quality hdmi input super dac. It will never happen.

Oops. You are absolutely correct. There was another major amp out there at the time that used buf634's. Brain fade. There were also amps that used stacked buf634's or stacked 5002's. Don't remember the names of those either.

Single box sony scd-5400es seems to be the best thing on the planet right now regardless of price. $1200 Over 25 million dollars spent on designing the new dac's for the thing.

I had one of these a long time ago. Built typically krell. Will last forever. By todays standards, does not sound very good. Lots of stuff going on in the software, so some cd's sounded great, others sounded like crap.

buf634 is not the best thing for driving low impedance headphones. For mid and high impedance headphones many people consider it a bit bright. Ray Samuels SR71 and 2005 versions of headroom product also used buf634. Tube front end takes a bit of the harshness away.

power supply shipped But wait, maybe the tracking number is a fake. Might have to fake 3 more tracking numbers. Power supply was free, but the power cord is $3000 CASH NOW... Special hi-faluten off white power cord... Special 9 nines copper. Aged for at least 5 years...

Power supply shipping today

THIS JUST IN OK, waiting for picture verifications In any singlepower electrostatic amp, if you have the voltmeter option, guess what is in the power supply box? In any singlepower amp if you have the chinese step attenuator option, guess what is in the power supply box?

I've requested a few more pictures of the power supply. If we can figure out all 12 wires on the 3 x neutrik connectors, i can make up the open frame supply correctly wired with 3 tails. At least he will be able to listen to it more carefully to decide whether or not he wants to completely gut the thing. There is +12, -12, ground and +5 for sure...

Absolutely correct. Put those top screws in pronto. Take apart from the bottom. You may not like what you see.

i'll donate this to the cause, i'll even pay for shipping. I can find bigger ones if necessary

Ray having the worst day in his entire life would never let something like this out the door. Nor would he make even the slightest attempt to build it in the first place. Fact is that a single open frame linear power supply would actually cost a fair amount less than the pile of crap that is in that power supply. And you could still add blackgates at the output. Would love to see the insides of the power supply for an ES2.

dynalo, dynahi, dynafet, B22 and B24 are all fully discrete opamps. I'm sure that with surface mount resistors i could cram a dynalo into that form factor.