TEAC UD-701 vs NT-505 vs ?


I stream Quboz and Tidal via a Bluesound Vault 2. Vault transmits to Parasound JC2 to modded A21 to Vandersteen Quatro CTs. (See my profile for complete description of system.) Happy, really very happy, with Vault 2 but it is likely best point at which to upgrade my system.

Considering TEAC NT-505 ($2K) and new TEAC DAC/streamer UD-701 ($4K), which has some very attractive features: in-house-built discrete Delta-Sigma DAC with FPGA circuity, dual-mono signal path, four separate power supplies... Have seen enthusiastic reviews for NT-505 from owners here. Only one review by Moon Audio out about UD-701, and they are not an uninterested party. Curious if any out there have heard UD-701?

Open to other suggestions, including used with roughly $6K price ceiling. See TMR has used Aurender A-10s for sale. Used PS Audio Direct Wave DAC with bridge is another consideration, although I have seen owners comment negatively about the bridge.

Not wed to DAC/streamer combo but that has appeal to me because it eliminates a box, connecter, and power cord, all of which add to cost and connector makes signal path less direct.

Also not wed to SS but a tube DAC appears to me to introduce an additional source of distortion into my otherwise SS system, so it will then be affected by both SS and tube distortion.

Thoughts?

Bosssound

128x128bosssound
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@bosssound thanks for that. All that stuff is long gone - some I wish I still had but… 🙂 There have been at least a dozen more systems since then at 2 different homes.

I moved on from the PS about 4 years ago and have been through several dacs since then. I did enjoy the PS when I had it. I think the 701 is much more advanced in its steaming capability vs the bridge. I haven't kept track but I imagine the DS is pretty much done as far as PS is concerned. I use the 701 in my second system and think it is several levels above the NT505 I had for a while in that system. Teac did a nice job. The preamp section is very nice too. I have an Esoteric F-07 amp that can be used as amp only (pre bypass) and using the 701 as preamp was very good. Not a huge difference in using the 07 as an integrated. I also should say I think the the 701 USB is slightly better to my ears vs the network input. Just slightly.

 

 

Thanks mantis007. Will have to wait for my son-in-law to visit - he is a software expert for a Swiss bank and has a windows device. I haven’t tried the preamp into my Luxman, but good to know. I am in the process of selling my nt505 and have also been offered a good trade in against the cg-10m clock. I have no idea regarding the merits of adding a clock and suspect small gain vs $$$ , but might be wrong. Any thoughts?

@bosssound ,

Thank you the update. I read it with great interest.

Bummer that only 1 channel worked. But good to know that even with that you preferred the 701 compared to the 505. The Teac 701 is now high on my list, since it also has streaming capability. Question about the upsampling - does it mean that if you send FLAC to the 170, you would be able to upsample it to DSD?

Currently I have found a way to add Radio Paradise, Folk Alley and Spotify to Foobar 2000 and love the upsampled DSD sound. I am wondering if I would be able to do that via this DAC.

Do you plan to get another 701 which does not have any issues?

 

@mantis007 ,

What DAC do you have in the primary system? Did you compare the 701 with the DAC in the primary system?

I must agree.....you have had some really neat systems in the past.

@milpai 

I don't think upsampling to DSD from FLAC is possible. But this is at edge or beyond of my technical sophistication. On page 15 of manual, chart shows 44.1 kHz (FLAC) can be upsampled 8x max to 352.8 kHz.  Delta-Sigma DA modulator sampling freq appears to be set independently of this with options of 128, 256, and 512 (page 25). Conversion of PCM to DSD appears possible by selecting appropriate setting.

Yes. I plan to get another 701. But who knows when that will be given supply disruptions present. Moon Audio has stock. But like bhvf I am not crazy about their terms.