Analyzing DACs

So...I have tested dozens of DACs ranging from $300 to $30K.  What you really need when matching to an amp is to ensure the electrical properties (impedance, voltage, etc...) are a good match for the amplifier you are connecting to.  

It does not matter how it measures or does not measure if the output of the DAC is not well aligned with the amplifier it is connecting too.  A big advantage of a preamp is that it is going to alter the source signal and ensure it is well suited to the amp it is connected too, assuming that it is properly matched to your amp.  

In general, DACs have a fairly high output level and tend to work best when directly connected to amplifiers that have a low level of sensitivity.  You can have an amazing volume control, full preamp stage, etc... but if it is a poor match it will sound like crap.  

The right way to judge whether a DAC is a good fit or not is to start with what amp you have and then what speakers.  After that, in general, DACs with true preamp stages tend to outperform those with simple volume controls.  

Finally, reviewers tend to always be positive about performance of units.  You need to get what is driving positivity around a particular unit.  For example, one DAC you have mentioned excels with the use of HQ Player.  If you aren't going to use HQ Player, it is average. This helps eliminate buyers remorse. 

I can't offer advice on what to buy. I can offer advice on what to audition but need to learn a lot more about your listening habits and rest of your system.  

Good DACs cost a lot of money

I don't think this is the case in 2023, Thomas talks about an approach to DAC's that is "good enough" and I tend to agree with him. FWIW I do own a Sony Signature DAC that is their SOA, but the DAC in my Bluesound Node streamer is certainly "good enough":

@verdantaudio Have you compared the Lumin X1 DAC in your shootout? I need to get another DAC and trying to find a reason not to get a second X1. Variety would be nice or maybe not, since I like the X1’s sound and features. The other DAC I have on my mind is the Musetec 005, which I have owned before and much cheaper and also like (but no streamer)

I am curious about other DACs in the higher priced bracket. Along with DACs that have USB as their best sounding input, like the Musetec 005. I will stream with fibre optical Sonore OpticalRendu (fibre-to-usb) if I do not get another X1.

I will go with a 2nd Benchmark LA4 preamp and currently the CODA #16 amp. Although, I may keep the CODA #16 in the office system and get a KRELL XD amp for the new DAC.

In my opinion, the DAC is the second most important component after the speakers - it is creating the signal you listen too.

Agree on this.

@yyzsantabarbara i have not had the X-1 in for a detailed evaluation. I have heard it though and am familiar with Lumin’s sound.  The DAC I would say you must listen to is one I am about to write up.  The Soul Note D-2.  USB is unquestionably the best input.  There is a rich story behind the brand founders experience but that has led to some really incredible and natural sounding products.  You can add a 10 MHz clock to take performance to the next level.  The biggest issue is that it is DAC only so no volume control.  If you can live with that, it might be worth an audition.  

@verdantaudio That sounds interesting. If you are a dealer for that unit lest talk a bit more offline. I will send you a DM later.