spritzer

Very good comparison you've got there. I'm with dvse on preferring the smaller, more precise headstage of the Mk1 but I also like the more rounded soundstage of the SR-Omega. The Mk2/A with the latest round of mods does sound pretty similar to the Mk1 though more forward. I quite like them though and now the hard part is to modify the Mk2 pads... As for the comfort then the elastic band on the Mk2/A is much stronger so I'm not sure it will loosen up over time. I do how ever prefer the material on the bottom of the headpad on the Mk2.

Sure thing.

If you want an impressive DAC get a Zero and listen to all the reasons why it costs only 100$...

The name is even more of a facepalm. Thor (which is my middle name ) or

Wuss!!!! ... Impressive will never last and can often become annoying in the end.

Amps do need to warm up and same goes for sources but headphones at these power levels?? I know it is a common misconception with RSA customers but that's not surprising...

I haven't tried a whole lot of DAC's but the AudioZone DAC1 is here to stay in my computer rig. It retails for 1400$ but can be had for much less used. It does only have one BNC input but a RCA adapter is cheap or you can use something like the Trends UD-10.1 which I just ordered. It's smooth, extended and doesn't suffer from the horrible digital haze of the Benchmark or so many other new digital products all out to impress.

Same here, couldn't care less about it.

Same here.

It makes sense to me if one is for a passive preamp and the other for the ES-1, hence the question.

NICE!!!! That reminds me to finally get off my ass and rebuild my server...

I'll wait for the pics then. That makes more sense but can you control the volume of the ES-1 (electrostatic portion that is) with both controls?

We have a winner!! It is possible to put a transformer on the electrostatic output to bring the voltage down again but I can only see one reason for doing so and that has nothing to do with preamp duties. Pics please as it is most likely just a shared connection of the stepped attenuator. From the pics I've seen of the exterior of your amp it has no extra tubes like that SP dual purpose amp which does indeed have a preamp in the same box.

Nope, Ray is just copying others as usual...

It works as a passive preamp but I doubt many amps would appreciate the high voltage output...

Kind of reminds me of this picture: V-Caps in the bias supply? Not that the other caps pass signal either... Sounds interesting. Will this be RSA and MarcE only system or will it expand later on?

Ditto...

That's not a bad idea. When can I order my MarcE special edition?

Without knowing why they were added I'd leave them in place for know. What output sockets are connected to that bias supply and is the one in the PSU populated?

Adding resistors after the bias supply only makes sense if you want to go up to 10Mohm to better suit the HE90 or install a dividing network to drop the voltage. The latter makes no sense with the pot already there...

It might be time for some drastic measures such as a sharp angle on top instead of the gentle curve. Both are great headphones and my current incarnation of the Mk2 mods bring them a lot closer to each other but that's with Mk1 earpads in place. Not really an ideal solution... ...and ohh I'm definitely nuts...

You may need to adjust the arcs for a better fit and sound. Btw. Thanks for the comparison, nice to know I'm not completely nuts...

Who uses Caddock's in a bias supply? I was also trying to figure out why they were there as the amp already has a HE90 output.

The cmoy is a great way to start but a Millet SS is also a good beginners project as it isn't very complex.

http://video.google.com/videoplay?docid=-100926089806656515&hl=en http://video.google.com/videoplay?docid=-100926089806656515&hl=en This was posted over on HF earlier today and it deserved it's own thread. It's a Swedish film about audiophiles with a guest appearance from a unique headphone. They turn up about 30 seconds in. A small teaser...