Tube DAC Recommendations

I am with Doggiehowser on this. I also have a PDX and have compared it to tons of stuff and nothing bests it so far. The only one that may do it is a Killer DAC which I have on order. I have heard it on a few occasions and know it is very good but haven't done a direct comparison to a PDX. That DAC was compared to a number of uber expensive DAC's by people whose ears I trust including an Audio Note and top of the line DCS Stack. The others were quickly eliminated leaving the Killer and DCS. It was a tie - the DCS was quicker with fantastic detail but the Killer simply sounded more natural and real.

To find out about a PDX check here:
http://www.lenehanaudio.com.au/index.php/products/pdx-usb-dac.html

To Find out about the Killer check here:
http://killerdac.com/forum/index.php

When I get the Killer I will be doing a detailed comparison as well as lending it to guys I trust such as Doggiehowser so they can do the same.

Thanks
Bill

Bob,The PDX looks like it cound be something special.Pasive resistor I/V straightforward output stage and wow, Duelund VSF capacitors with the level 2 mod(very interesting). What`s the output(volts) of this DAC and does it avoid the use of opamps? How stout is the power supply?
Regards,

My tried and true recommendation: Audio Note.

I have yet to hear a DAC I prefer.

It's strength is the orgnanic, natural quality of voice and instrument timbre, dynamics, and dimensionality. It has great frequency extension with clear highs and satisfying bass.

Only two downsides I can think of:
1- Essentially no USB support. If you need USB you will need a USB to SPDIF converter.
2- The DAC chip only supports up to 18/96.

Even with those limitations it is the most natural digital music experience I've ever heard.

I've heard the Aesthetix Pandora VC being feed from a PS Audio PWT into the AES input and a Auraliti PK 90 into the USB input. I agree with Rtilden's Romulus comments on break-in and sound quality with 16/44.1 recordings, but hirez from the PWT/PK90 takes it to another level,especialy when connected directly to your amps.

I have a level 2 PDX with Bybees all over the place as a special order. Like I say its the best DAC I have heard so far with one exception (aside from the Killer which may be better) - a Playback designs DAC I have on DSD - but only DSD - via PCM the PDX easily bests it - and of course its not valve.

Each DAC is hand built by the designer, Clay Geisner, to order, and the output resistor is adjusted to the input sensitivity of the amps being used. This is to make for easy direct connecting to the amps and using the volume control on the computer which myself and others found sounds the best. Its a bit better than the version with the volume control even though the particular volume control used is very transparent using LED's and not a pot.

No op amps or anything like that. The power supply is a special linear supply that plugs into your outlet and connects by a special supplied chord.

If you want to know more simply drop Lenehan Audio a line. The guy that runs it, Mike Lenehan, is really good to deal with. I am fortunate to live only about 30-40 minutes (so does my mate Doggiehowser) from the factory and know the guys there pretty well.

With the amount you have to spend I would look at the version I have with Bybees all over the place (on the power going in, from the DAC chip to the amp, and on the output). Its not on the site but just mention it to Mike and I am sure he will arrange for it.

Anyway good luck on your search.

Thanks
Bill