Hi,
Late again, as usual. Sorry about that.
I've returned the Romulus to the local dealer a few months ago and I still miss the huge soundstage. I'm trying to figure how I can get either it or the Pandora back from the dealer to re-audtion it to verify.
In the mean time, I've looks at a few other DACs with USB compatibility and none of them captures this ability so I am thinking it's either unique to Aesthetix or I was really on a bad bender during the review period. I hope it was the former, otherwise, my binges are bad enough that they affecting my girlfriend's hearing as well as mine.
Other units I've had since then (all were either floor demos or used, so were already well broken in by the time I plugged them in):
Antelope Gold w/Voltikus: most of my listening was with digital tracks and where I could, I used higher resolution files (24/96k). The Voltikus had a speaker width stage presentation, not the huge blooming one that the Romulus threw. The Voltikus sounded like it was pro-audio gear. It's fast and quick (noticable in my fast-n-quick system). Bass was controlled well. There was almost a "density" to the music (I really don't know how else to describe it), that made instruments fill up what soundstage was there. Instruments sounded bigger, like they occupied more space, but it really wasn't a lifelike recreation. Just big, "dense" images to make the space between the speakers sound crowded. With the Romulus, each instrument had it's own space but no more. Instrument sizes were roughly the size I would expect from a real instrument, and if they were miked or mixed with space between them, the Romulus would project that too. Volitkus made such spaces disappear. If Phil Spector designed a DAC for his Wall of Sound mixes, he'd like this one. The Voltikus' sound didn't make instruments "bleed" into each other, they just sounded ... dense. Some folks may like this type of presentation, and I do think highly of the unit, but for me it had the really hard job of replacing the Aesthetix unit.
Also, the Voltikus USB is flaky. Several times the IMac refused to see the Voltikus (failed handshake?), and I had to fully unplug the Voltikus and reboot the IMac to make it play nice. It worked fine once that ritual was finished. Turning off the Voltikus had no effect. Unplug was the only fix here. I've seen some other people online had the same issue, and they too came to the "unplug or die" answer, so I'm not alone with this.
Berkeley Audio Designs Alpha DAC (series 2) and USB (leashed together with Crystal Cable AES/EBU): Again, pro-level audio gear. Soundstage was speaker width. Bass got handled well on good recordings but lower resolution files sounded like low resolution. Meh. No sweeteners here.
My notes on this one features the words "percussion" or "percussive" again and again. This unit got into the details of "musical impact" more than any other unit I've heard. The impact of a stick hitting a snare head was so clearly presented, it was like a different recording than what I was used to. Likewise piano hammers hitting the strings in quiet space (I played the opening Aria from Andras Schiff's version of the Goldberg Variations again and again to verify this). I like the effect even more so on acoustic guitar with the pick audibly scraping across the strings and then the note or chord sounding. With the impact, there must also be decay. The Alpha DAC didn't highlight or emphasize decay the way it did with impact, thankfully. So much analytic detail would wear thin pretty quickly and distract from actual music. In otherwords, the DAC was very competent in the overall presentation with its real strength being this presentation of impact speed(?).
I don't know how Berkeley Design does this whether it's processor speed, software implementation or what. A really nice unit, but I can't say I would pay the ransom my local dealer wants for it, especially since the Pandora would be cheaper than the Alpha + USB box combo I would need. Add the Crystal Cable and I'm getting into some bucks.
Finally, I'm demoing a used Weiss DAC 2: This is connected via Firewire rather than the USB, so right away it's different than the other 3 I've talked about. I'm only a few days into the review now, so I'm still deciding what I like about this. This is an older unit (at least 3 years old, I think) and has been replaced in Weiss' product line by the DAC 202. In fact, my IMac refused to connect with the DAC 2 when I first plugged in because the supplied CD with Firewire drivers were actually obsolete. Fortunately, downloading the most recent drivers and installing them was a piece of cake. In short, with good quality (mp3 >256k or AIFF/WAV files) , it sounds great. Musical and really pleasant. Soundstage is the familiar speaker width, but everything flows well. On some of my older low-rez files or poorer recordings, the bass gets very "woofy" (electric bass, bass drum etc.) and I find myself steering away from those tracks to higher-rez waters. That is really the worst thing I can say about it so far, which is pretty good indeed.
The Weiss is very very interesting, and the price of the used DAC 2 is less than half of any of the other units here. The DAC 202 that replaces it on the other hand, is more expensive than any of the other units listed here. I do need to listen to it more, but if I can live with the saggy bass on some of the older tracks I have, I might get this for a bedroom or office unit.
But based on everything I've heard, I still long for the Aesthetix. Damn if that thing wasn't like audio crack. I really do need to get that one back to verify. If you can audition in your system, give it a try. It sounded so much different in my system than what I head in the dealer's showroom (in an all Aesthetix system no less). It was night and day with my own system on the plus side.
One last note: I am trying to get a Bricasti DAC unit to listen to but it's proving difficult since there isn't a local dealer I can beg for it. I will try though.