analogmusic
100+ Head-Fier
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from what I read, the totalDAC designer uses an FPGA filter for high frequencies only to compensate for high frequency roll off.
It also does something I found kind of interesting.... Some of my recordings that were not so well previously, sounded better through the DAVE, where others sounded worse, and even overly sibilant at times. These are different file resolutions for the most part, so maybe the filtering for said resolution vs. another is better with one than another? I don't know, but I found this interesting.
Good recordings sound wonderful and completely unharmed doing nothing but justice, of course, and worse recordings were a bit of a mixed bag, so take that for what its worth
Although the dynamics are world class, not as explosive as the DAVE. [...] Bass does not have the slam of the DAVE. It is a more tuneful bass with the Twelve. Sort of like comparing horn bass to direct radiator bass. It fills the room, is very focused and deep, but it does not hit super hard. [...]The DAVE is just slightly faster sounding better keeping up with drum rolls FE...
DAVE also has the edge with forward delineation, meaning a duo or trio of singers that are close together and forward for instance, is better than any digital I have heard at keeping them separate and never smearing together. This is VERY cool and important.
from what I read, the totalDAC designer uses an FPGA filter for high frequencies only to compensate for high frequency roll off.
The one question on my mind regarding the TotalDAC is, do all the sounds have a similar 'enhancement' to the sound, or is it dependant on the recording? What I like about the DAVE is that if a recording is close mic'd and/or produced flat then the DAVE shows me this quite well. If it's recorded in a live performance then I sense the room/space/depth easily. I absolutely hate it when a piece of gear gives me a false sense of a larger space where it shouldn't exist. Also, with the DAVE, I find that (as Rob says) hard sounds sound hard and soft sounds sound soft, etc., not just a certain quality or enhancement to every recording.
With regard to these things I'm wondering if the TotalDAC makes everything euphonic, or if one can sense the music more as it was recorded/mixed? Of course the only way to truly judge this is to be present at the recording, or to know the conditions of the recording/mix, but at least I feel with the DAVE I get a clear impression of how it was originally recorded. I haven't been able to pick that out before as easily. How is the TotalDAC regarding this?
Also, regarding the output stage, all DACs have an analogue output stage including the Trinity and MSB. The DAVE essentially uses it's line out to also drive headphones because of Rob's unique approach, which is no separate headphone amp stage as such in the chassis for the sake of transparency. It's well documented by Rob so not really comparable to other DACs with a headphone amp.
Edit: I just want to be clear that I'm trying to get a handle on what the TotalDAC brings with regard to what I've mentioned is all. Simply curious is all.
IMO, The Twelve is very brutally honest and album to album comparisons have no sameness. If it is flat, it is flat, deep is deep, if the performance is more energetic, it is energetic, small is small, big is big, if the recording has a problem, it is laid threadbare FE lacking focus, sharpness, smear, etc. I don't find enhancement broadspread whatsoever. Everything is just more clear and intimate, intimate meaning closer, more transparent, able to see the inner workings of the artists more and a lower noise floor. I don't think of transparency as having a false sence of bigger soundstage or some beguiling glow put on top of everything...... I think of transparency as the ability to hear more the sounds of the instruments, the ability to see something real happening in front of me, the artists emotion coming through with nothing between.
I mean look, the Twelve is different. It really has to be experienced to fully understand. You can pick apart my review any way you like, and you really don't have to worry, as the DAVE is a fantastic DAC, and I fully understand what it is capable of and what it does different than many other DAC's. It is a monster at its price in comparison to other DAC's I have tried at and above its price point.
The Twelve is soft with regards to bass slam, but not bass quantity and focus. It is not soft in relation to leading edge, attack, and dynamics, and is in fact, more rangy in this regard with relation to soft to loud sounds. This along with the low noise floor, are correlated to the greater depth portrayal IMO. The other Totaldac's have tons of slam and drive.
The Trinity, Twelve, nor the MSB Select have an active output stage as far as I know.
All of the Totaldacs have a mode to select the high frequency compensation or not. It is a FIR Filter. Here is Vincent's description:
[COLOR=FF5A00][COLOR=FF5A00][COLOR=000000]"FIR compensation filter:
Non-oversampling DACs are known for their musicality but they all have a problem, the frequency response is not flat and the treble loss is more than 3 dB at 20KHz. This is called sinus(x)/x loss. All DACs with oversampling compensate the sin(x)/x loss in their digital filter. On the TOTALDAC board I didn't want to use oversampling because I prefer non-oversampling DAC sound, but I used a FIR filter to compensate the sin(x)/x loss. It is a short FIR for high frequencies only, so response before impact is short and is not a problem."[/COLOR][/COLOR][/COLOR]
The Twelve likes a preamp for driving the majority of amps, because it does not put out allot of voltage and has a higher output impedance. However, if your amp has an input impedance of 47K and above or so, with a voltage to max power under 1.5V or so, the Twelve will run it very well. The Monobloc DAC was much better at driving all amps directly, but it sounds nothing like the Twelve with regards to transparency and noise floor, even with a preamp in the loop. This tells me that the Twelve takes care of an obvious problem, the active output stage. Yes, I know, same could be said for my preamp. To my ears though, it does not harm much in the way of transparency, and it doesn't sound false to me. Twelve direct is supremely transparent, and I hear this with the preamp in the loop also.
I am not going to deny either, that my system after the DAVE or the Totaldac could be better, but as a whole, it frikin works and paints the most convincing event picture(s) I have ever heard. It scales with every upgrade that have been made to the Server, network equipment, cabling, etc.
I hear you. It is also something to strip away artifacts so much that more music you thought was unbearable somehow becomes listenable. The DAVE does this. Totaldac does this.
The DAVE does offer an optional filter for a possible improvement to unsatisfactory recordings. This is something I need to play with more.
Hi, I'm back. I appreciate all the well wishes as I've struggled with some family issues. As a physician, I deal with advanced disease all day long but when a close family member comes down with advanced cancer, it's never easy. As her condition has stabilized for the time being, it allowed me to get away to Colorado to attend RMAF over the weekend and I will post findings that may be of interest regarding the DAVE. During the weekend, it also gave me time to jump back on Head-Fi and catch up on lots of great posts, especially by @paul79. A very interesting perspective from a respected audiophile and friend. I will share my own commentary soon.
Regarding RMAF, DAVEand the other Chord DACs were well represented at the CanJam tent. I got a chance to hang out with Edd and Tom from Chord, really wonderful guys. They are exploring the Rockies today for the very first time on their only day off. Hopefully, it's a great adventure. In the 2-channel speaker section of RMAF, DAVE and TT were well represented in the High Fidelity Cables rooms and DAVE played front and center in the Voxativ room. More to follow...