TEAC NT-503 USB DAC & Network Playersearch

TEAC NT-503 USB DAC & Network Player

TEAC NT-503 USB DAC & Network Player

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The Center of Your Digital Audio System

The 2016 winner of Japan’s prestigious Visual Grand Prix award in the “Network Audio” category, the TEAC NT-503 is a versatile network player with a dual-monaural USB DAC. It can play digital audio files from a variety of sources: a computer using a USB port, a network server using an ethernet port, or a USB storage device. Based around a dual-monaural design and the TEAC-HCLD circuit, the high-quality analog output circuit creates the ideal preamplifier unit, delivering both balanced and unbalanced audio signals. The NT-503 is similar in design to the company’s well-regarded UD-503, but replaces one of the latter’s two 6.35-millimeter headphone jacks with a front USB port for reading audio files from a USB storage device. Finally, the OLED display has a four-level dimmer with high contrast and great visibility.

To learn more, check out this review.

Quantities are limited to 13 units.

TEAC NT-503 USB DAC & Network Player
TEAC NT-503 USB DAC & Network Player
TEAC NT-503 USB DAC & Network Player


USB Section: Rear

  • Connector: USB B-type x 1 (USB2.0)
  • Supported formats: DSD (dsf, dsdiff), PCM
  • Recommended software: TEAC HR Audio Player (Windows, Macintosh)

USB Section: Front

  • Connector: USB A-type x 1 (USB2.0)
  • Supported formats: USB Flash Memory
  • Recommended software: DSD (dsf), WAV, FLAC, AAC, Apple Lossless, WMA Lossless, WMA Standard, OGG Vorbis, MP3

Network Section

  • Connector: RJ-45 (100Base-T)
  • DLNA remote play: DLNA 1.5 complied
  • DLNA supported formats: DSD (dsf), PCM, WAV, FLAC, AAC, Apple Lossless, WMA Lossless, WMA Standard, OGG Vorbis, MP3
  • Home media supported formats: DSD (dsf), WAV, FLAC, AAC, Apple Lossless, WMA Lossless, WMA Standard, OGG Vorbis, MP3

Bluetooth Section

  • Version, class: V3.0, Class2
  • Supported profile: A2DP, AVRCP
  • Supported codec: aptX®, AAC, SBC
  • A2DP content protection: SCMS-T
  • Number of pairing devices: Max. 8 devices

Internet Music Services

  • Supported services: A free iOS/Android App "TEAC HR Remote" is required to access these services.
  • US/Canada: TuneIn, Deezer, Spotify, Slacker
  • UK/Europe: TuneIn, Deezer, Spotify

Digital Audio Inputs: Coaxial Digital (Rear)

  • Connector: RCA Pin jack x 1
  • Input level: 0.5 Vp-p
  • Input impedance: 75 ohms
  • Supported formats: DSD (dsf, dsdiff), PCM

Digital Audio Inputs: Optical Digital (Rear)

  • Connector: TOS-link x 1
  • Input level: -24.0 to -14.5 dBm peak
  • Supported formats: DSD (dsf, dsdiff), PCM

Digital Audio Inputs: Coaxial/Optical Digital (Front)

  • Connector: 1/8" (3.5mm) Coaxial Digital/Optical Mini jack x 1 (compatible)
  • Input level, coaxial digital: 0.5 Vp-p
  • Input level, optical digital: -24.0 to -14.5 dBm peak
  • Input impedance: 75 ohms (Coaxial Digital)
  • Supported formats: DSD (dsf, dsdiff), PCM

Analog Audio Outputs: Balanced Output

  • Connector: XLR 3-32 jack x 1 pair (Gold-plated)
  • Output impedance: 188 ohms
  • Maximum output level: 2.0 Vrms (1kHz, Full-scale, 10k ohms loaded, 0 dB Fixed Level); 4.0 Vrms (1kHz, Full-scale, 10k ohms loaded, +6 dB Fixed Level); 12.0 Vrms (1kHz, Full-scale, 10k ohms loaded, Variable Level)

Analog Audio Outputs: Unbalanced Output

  • Connector: RCA Pin jack x 1 pair (Gold-plated)
  • Output impedance: 150 ohms
  • Maximum output level: 2.0 Vrms (1kHz, Full-scale, 10k ohms loaded, 0 dB Fixed Level); 4.0 Vrms (1kHz, Full-scale, 10k ohms loaded, +6 dB Fixed Level); 6.0 Vrms (1kHz, Full-scale, 10k ohms loaded, Variable Level)

Headphone Output

  • Connector: 1/4" (6.3mm) Stereo jack x 1 (Gold-plated)
  • Maximum output level: 500 mW + 500 mW (32 ohms loaded)
  • Supported headphone impedance: 16 to 600 ohms

Clock Input

  • Connector: BNC jack x 1 (Gold-plated)
  • Input frequency: 10 MHz
  • Input impedance: 50 ohms
  • Input level, rectangle wave: TTL Level or equivalent
  • Input level, sine wave: 0.5 to 1.0 Vrms

Audio Performance

  • Frequency response: 5Hz to 80kHz (+1dB/-3dB)
  • Signal-to-noise ratio: 110 dB (A-weighted, 1kHz)
  • Total harmonic distortion: 0.0015% (1kHz, LPF: 20Hz to 20kHz)

Audio Settings

  • Up-conversion:  x8, x4 , x2, Off (Switchable)
  • Digital filters, DSD cut-off filters: 50kHz, 150kHz (Switchable)
  • Digital filters, PCM digital filters: FIR Sharp, FIR Slow, Short-delay Sharp, Short-delay Slow (Switchable)
  • Line output: RCA, XLR2 (HOT 2), XLR (HOT 3) (Switchable)
  • Line output level: 0dB Fixed, +6dB Fixed, Variable, Off (Switchable)

Supported OS

  • Windows: Windows 7, Windows 8, Windows 8.1, Windows 10
  • Macintosh: OS X Lion (10.7), OS X Mountain Lion (10.8), OS X Mavericks (10.9), OS X Yosemite (10.10), OS X El Capitan (10.11.1), macOS Sierra (10.12)
  • Operation power, US/Canada: AC 120V, 60Hz
  • Operation power, UK/Europe: AC 220 - 240V, 50/60Hz
  • Other Specs
  • Power consumption: 18 Watts (0.4 Watts at Standby mode, 3 Watts at Network Standby mode)
  • Overall dimensions (including protrusions): 11.4" (W) x 3.2" (H) x 9.8" (D)  / 290 (W) x 81.2 (H) x 248.7 (D) mm
  • Weight: 8.6 lbs. / 3.9 kg


RCA–mini plug cable

Remote control (RC-1320)

2 AAA batteries

Power cord

Owner’s manual with warranty card


Domestic orders will be shipped by Massdrop.

Estimated ship date is Oct 30, 2017 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.

Recent Activity

Joined the drop

No. After listening it to about a month and having it sound basically the same every day, and then one day just reveling in the improvement, no, I didn't just get used to the sound. I've been in the audio hobby for about 30 years. There are some things I've owned and used that really changed their sound drastically with some use, sometimes suddenly and unexpectedly, sometimes slowly over an extended time. I've also owned whole bunch of gear that maybe changed some aspect of their sound to some degree over time, but nothing mind blowing (ie, started by sounding somewhat congested, but opened up after some use, but retained the same basic sound quality). And then there are those that didn't really change in sound quality much if at all over an extended time. To me, it's really apparent when a sonic change happens. Because over the decades, I've listened to a lot of gear, and I know what works for me in terms of sound quality, ie, pacing, flow, tonality, resolution, liquidity, sense of space, rhythm, naturalness in attack and decay of notes, etc. So I can recognize when those qualities I like are there or not. And I can recognize when there is a change. So when I listen to a piece of equipment for more than long enough to get a grip on the basic sound quality (ie, a month or so in this case), and then it takes a turn for the better (in this case), I definitely notice that. And it's not just getting used to the sound. I can usually get a grip on that in a couple of days or so. I think what you are talking about is called "brain burn in". It's when you start listening to a piece of gear which may have a different presentation that what you are currently accustomed to, and your brain accepts that presentation over some period of listening, and you accept that presentation to the extent that you will, you unconsciously overlook the shortcomings, and enjoy the musical presentation in the way it is presented. I think it's something like watching a play put on by community theater group in a theater with dim, subpar lighting. No, you don't see all the colors and details that you would if you were watching the play in a professional theater, but your brain adjusts and you forget that the light is a bit too dim, and overlook the yellowish cast, and watch the play and enjoy it to the extent that you can. And unless the shortcomings are totally egregious and distracting, you don't think about those things after a while and just enjoy the play. But here's the thing. Even after you've gotten accustomed to the dim lighting, etc. those colors that you are seeing and the resolution and detail that you can discern will never be the same as if you were in a professional theater with its superior lighting. So your getting used to the lighting will not net you the higher quality experience that you would see in a better theater, no matter how much you get used to it. So when I hear what, essentially, was a community theater experience change into a professional theater experience, no, I don't think what I was hearing was because I simply got used to the sound, in my opinion.