Thinking about getting a R2R DAC

Delta sigma is definitely not the only reference game in town anymore.

It never was in my opinion.
Just had to be use because of sacd/dsd.
It was second rate for doing red book PCM 16/44, 24/96 or DXD conversion.

Cheers George

i am glad the mod cleaned up the garbage in this thread

@decooney 

you mentioned using outboard power supplies with the mhdt dacs... i have three of them, they all have the standard IEC 3 prong plug for power input on the rear panels...

how do you use an outboard PS?

@jjss49
I don’t myself, not yet. However, following up with a friend this morning who’s messing with two different psu units for both his streamer and his dac, the psu is not going to work as hoped for the dac itself. Also validated a few others in the group loop had not gotten it to work on theirs either, not without tearing the whole dac apart. Stopped there...  So I was partly mistaken on this part. Apologize for the premature mis-info. Seemed like a good idea at first. If the psu works in other areas I might order the same and at least try it on my own streamer, and then proceed with possibly piecing together a new streamer myself and use the same psu if it makes a difference. My tube preamp uses a similar large outboard power supply unit, would like to do the same for the DAC.  Nothing confirmed on my end yet on my own system though. Maybe this winter, after the streamer stuff...

@decooney

thanks for clarifying

yes in general, i agree, most dacs short of the gold plated top of line all-in ones can usually benefit from an outboard PS - if the input is suitable for typical good LPS like Pardo, Teradak, S Booster etc..., serving up clean strong 5/9/12/15v DC. These do tend to reduce the noise floor and make the DACs sound more relaxed, some more than others... 

I have a very analog, warm sounding EAR Acute CD player. I purchased a COS Engineering D2v after 15 years. It is probably a delta-sigma type. It has superior resolution. It was compared to the less expense H1 unit. The difference was the H1 had a more open sound rivaling the LP’s liveness and extra deep bass, but thinner mid-range sound. It worked perfectly for my friend’s monitor speakers making them sound louder in the bass and bigger sounding . My D2v rivaled LP’s full bodied mid-range making them extremely listenable for hours but lacking my LP’s open sound on my older speakers which do not have as prominent a high end. Both units are highly dynamic and rival LPs. The main difference I think is that the D2v has a dual switching power supply and the H1 has a single switching power supply. (The twice as expensive D1 has dual linear power supply). Instead of continued searching for a better DAC, I’m in the process of upgrading my speakers for the benefit of both LPs and CDs. I got tired of searching for CD playback in the 2000s after acquiring about 30 different CD players, almost all relative junk compared to an EAR Acute 2005.