TEAC NT-505 FUNCTIONAL REVIEW


 

On a 1-5 star rating:

5 stars for the DAC/Preamp (considering its price point)
4 stars for the Controller App. (works well with a few annoyances)
3 stars for the documentation.
2 stars for no WiFi.
1 star for its native file handling capability BUT with a freeware software solution it becomes 5 stars (see below).

This review is more focused on providing a review of the functionality of the DAC of those things that may not be obvious from the documentation. To keep this as brief as possible I am intentionally not restating what can be found in the product documentation since you can read this for yourself.

While I am calling this a review, I am purposely not saying much regarding sound quality which is so subjective and system / room dependent. But I will say I am very happy with the sound quality of this DAC. I upgraded from a Bluesound Node 2 and realized significant and noticeable improvement in sound quality plus higher resolution and DSD.

The controller app itself is pretty good but a lot of its functionality is not documented so you also have to figure it out on your own. Once you do you will realize it’s pretty good. It just takes some time to get used to. There are a few functional annoyances but that may just be because I am used to using the BluOS app.

STREAMING SERVICES work very well. I tried it with both Tidal HiFi and QoBuz HiRez. The MQA decoding of Tidal sounded excellent, so good I am not renewing my QoBuz.

REQUIRES A HARD WIRED ETHERNET CONNECTION because the controller app will not work unless the DAC is directly connected to your router via Ethernet. You should not purchase the NT-505 unless you have a hard wired Ethernet connection available. The DAC does have both coax and Toslink inputs so one could use an external streamer connected to the digital input on the DAC but then you would have to use the streamer’s controller app and none of the other functions of the NT-505. That really wouldn’t make sense.

MUSIC FILES ON A SERVER OR NAS: The native file handling capabilities of the NT-505 are awful if you have a large number of music files. It is slow to load and every time you turn on the DAC or your controller app it seems to take forever to re-load. I was ready to return this DAC until I noticed a single line in the documentations were TEAC recommends third party free ware called MinimServer to access and manage music files instead of their own software. You MUST use MinimServer if you have any significant amount of music files in your library.   MinimServer is very fast to load large amount of music files and more importantly maintains the index of music files in the server’s memory even when the DAC is off so it doesn’t have to rebuild the index every time you turn on the DAC. MinimServer performs very well with 1T of music files that I have stored on a remote PC. If you have a NAS compatible with MinimServer you can install MinimServer on the NAS and then use another free software called MinimWatch on your PC to configure and control MinimServer. MinimServer and MinimWatch are both very well documented and a Google search will get you all you need to know.

MUSIC FILES ON LOCAL USB DRIVE: The local USB port on the front of the DAC is intended for USB thumb drives but with this configuration you can’t use MinimServer and are limited to using the DAC’s native file management with the limitation described above. But with a smaller number of files this isn’t that much of an issue. I tested it with a connected HD with about 200 GB of music files and it did ok but when I tried loading more the DAC choked and froze.

PLAYING MUSIC FROM A COMPUTER: There is a USB type A-B connection on the rear to connect a computer directly to the DAC but I have not tested it since this DAC can play all high rez and DSD files from the a remote server or NAS.

I am not going to plug any source for purchases except to say that I bought the DAC from a large online seller that offers a 60 day return for any reason with full refund or credit for something else. That is more than enough time to fully evaluate this DAC.


128x1281extreme
@ymlee      

I do not have personal experience with the GG-10M. I have read on another forum that if you are doing critical listening of orchestral music with evolved speakers, the GG-10M will keep the music together "better". I listen to mostly rock, some jazz and some orchestra. My clock swapping is undecipherable ... everything sounds the same on my lo-fi. I am not sure if the GG-10M is intended for actual studio use.
I can confirm that the Teac NT-505 can play files from a hard disk (not just a flash drive) through the front USB port. I have a Seagate 2tb that connects OK, although it takes a while to read the files, before it appears as a library in the Lumin or Teac HR streamer app. I only have 100 gb of files on the disk. It may well be that the Teac will fail to read the disk, above a certain limit. That happened when it was connected to the front usb port of my Tascam da-3000. Not sure of the exact limit (300 gb??), or the reason, maybe the file system, the name space, or whatever. Remains to be seen if the Teac has this size limit in my case also, as reported by 1extreme, above. Anyway, the Teac can playback from usb hard drives also, up to a point. Not just flash drives, as discussed in the manual. 
I have the Teac CG-10M. To my ears there isn't a noticeable difference with or without. Save your money. Or buy mine. 
Testing the headphone amp:I need a long extension cable to enjoy music from the NT-505 from my listening chair, or the sofa. So I bought a standard four-pole (TRRS) 5 meter extension cable to test, with Fiio EX1 earplugs and AKG 450 over-ear headphones. Price: ca 15 usd.
Result: in all cases, the extension cable reduced the sound, compared to the plugs/phones plugged direct to the player. The main effects were 1) lower volume, 2) less treble, and 3) less dimensionality in the music, a bit more of a "tunnel" presentation. However, the differences were interesting.

1 Playing from a mobile phone (Huawei p30 pro): the extension cable gave a clear degradation of the sound.
2 Playing from the Fiio X3 g2 DAP: same thing, but not so much as with the mobile.
3 Playing from the Teac NT-505 headphone out: again, I hear the detoriation, but less than in case 1 and 2.
In sum - this type of cheap extension harms the sound, but to varying degree, related to the headphone amp and output.
I have no idea why this is the case - I am no engineer - but I guess that the greater "muscle" of the output in the Teac plays a main role, as well as the better detail.
Does anyone know of a long extension cable that does NOT noticeably harm the sound? (Balanced, TRRS, four-pole).
It is a bit strange that the effect is so strong, since "balanced cable" in audio usually means that long runs are no problem.

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