TEAC NT 505 USB Dac Network Player User Manual

TEAC NT-505 USB DAC
NETWORK PLAYER
MANUAL

About TEAC
TEAC Is a known and reputable name in the industry, creating a wide array of products that are accessible to the novice music lover all the way to the professional or audiophile. Since 1953, TEAC was the first to create the 1/2-inch 4-track cassette recorder, the 8-track reel-to-reel/mixer combo, the first R-DAT recorder, and the first MiniDisc digital multi-tracker and CD scratcher. But they are not just pro audio. TEAC creates some of the cleanest and feature-packed units in the audiophile and consumer audio market.
In a way, it makes sense that you want an audio company to have both hands in the proverbial cookie jar of pro and consumer audio. With a grounding and product line of recording equipment, it seeks to complement consumer audio gear, with the understanding of how effective recording is done which should ultimately translate into more efficient and accurate high-end audio playback devices. Knowing how to record audio helps to understand not just how to play it back, but to better recreate the original sound. TEAC knows this and it plays to their advantage.

About the NT-505
The NT-505 is a flagship dual monaural USB DAC with versatile network playback capabilities. It successfully incorporates the latest network technologies, along with TEAC’s decades of accumulated audio design experience, in an attractive package with an A4-sized footprint.
The NT-505 employs the latest VERITA AK4497 (developed by Asahi Kasei Microdevices) on each of the left and right channels. It is a highly-regarded high-end audio DAC, and supports DSD512 (22.5MHz) and 768kHz/32-bit PCM formats, achieving industry-leading ultra low distortion levels. OSRD (Over- sampling Ratio Doubler) technology, meanwhile, significantly reduces out-of- band noise. As a result, the NT-505 has the refinement necessary to make the most of Hi-Res formats, successfully processing information that lies outside the audible range.

• The AK4497 is the flagship product of the Asahi Kasei Microdevices Audio4pro™ family, which has been developed for professional audio equipment and high-end digital audio.
  A dual monaural circuit configuration is used throughout, from the power supply (including power transformers), to the D/A converters in the digital section and the Analog output stage. From the high-performance VERITA AK4497 D/A converters to the massive toroidal-core power transformers, each element is configured for single channel processing. This prevents mutual interference effects while reproducing a rich acoustic expressiveness. In addition, the Analog audio signals of both the left and right channels are processed in full balanced mode soon after the D/A converters all the way to the output terminal, contributing to an improved S/N ratio and extended dynamic range. This allows the fantastic sense of air that Hi-Res formats possess to be processed and conveyed without any losses.
  Connecting to your home network via a LAN cable, the NT-505 allows you to access Hi-Res music libraries on available music servers and computers, as well as hundreds of millions of CD-quality tracks on the Internet via music subscription services like TIDAL and Qobuz, in addition to free music subscription service Spotify that delivers over 50 millions music from the world. The NT-505 is also a Roon Ready product that enables Hi-Res audio streaming thanks to its high-performance D/A converters. ‘

Features

•  Hi-Res audio playback supporting DSD512 (22.6MHz) and PCM 768kHz/32-bit PCM
•  Dual monaural circuit design with a high-end AKM VERITA AK4497 DAC on each channel
•  Supports MQA decoding
• Spotify, TIDAL, and Qobuz music subscription services
•  Roon Ready
•  DSD128 (5.6MHz) and PCM 192kHz/24-bit Network streaming from NAS/PC
• 5 types of PCM digital filters and 2 types of DSD digital filters
•  Up-conversion up to 24.5MHz DSD and 384kHz/32-bit PCM
•  Dual onboard clocks for 44.1kHz and 48kHz frequencies, and 10MHz external clock input
• Bluetooth ® receiver supporting LDAC™ and Qualcomm ® aptX™ HD
•  TEAC-HCLD output buffer circuit and TEAC-QVCS volume control for high-quality sound
• Dual toroidal-core power transformers
• Digital Isolator for separated digital and Analog sections
• 1/4” (6.3mm) stereo TRS jack supporting the ground-separate drive
•  “Bulk Pet” USB transferring technology with four transfer modes for various sound characters * “Bulk Pet” is a registered trademark of Interface Corporation.
•  USB audio port for Hi-Res audio input from Windows/Mac
•  Coaxial and optical digital inputs on both front and back
•  Front USB port supporting Hi-Res playback from USB flash drive
• Analog outputs with balanced XLR and conventional unbalanced RCA outputs
•  High-contrast full-graphic organic EL display with dimmer
•  Full-metal body with an A4-sized footprint
•  Free TEAC HR Audio Player for DSD512 and PCM32/768 playback
•  Free TEAC HR Streamer app for iOS/Android devices
•  Compliant with RoHS

MQA decoder for master quality streaming
In order to achieve an Analog waveform closer to the original signal, the NT-505 supports MQA decoding while also supporting high sampling rate Hi-Res formats like DSD512 and PCM32/768. The MQA decoder is a totally new technology that controls Analog waveforms with excellent precision (as fine as 5 microseconds) and it reproduces sound in a manner that is perceived to be as close as possible to the original (to human hearing). Furthermore, a high- efficiency compression algorithm makes huge Hi-Res audio files compact in size, so you will be able to enjoy Hi-Res audio sources regardless of the speed of your Internet connection. * MQA Ready is scheduled to be deployed in the near future. High-quality wireless audio streaming via Bluetooth ®
In addition to conventional SBC and AAC codecs, the NT-505 also supports LDAC™ (24/96 Hi-Res audio transmission), and Qualcomm ®
aptX™ HD, a codec that uses 24/48 format transmission. These allow you to playback playlists on your smartphone and tablet wirelessly.
Dual onboard clocks for 44.1k and 48kHz, and an external clock input
Instead of referencing to an unstable and noisy PC clock during USB audio playback, a more accurate and on-board clock is generated by a high-precision, low phase-noise, audio-grade crystal oscillator for USB asynchronous transfer mode.
The NT-505 accommodates two on-board clocks exclusively for 44.1kHz and 48kHz sampling frequencies and applies the appropriate one to incoming digital signals – those that are multiples of 44.1k or 48k – to reproduce identical sound to the original by eliminating jitter effects on the audio signal. In addition, an external 10MHz clock input is also provided, to synchronize with an even higher-precision master clock generator, such as the TEAC CG-10M, for yet further upgraded audio playback with excellent sound quality. Hi-Res audio playback from USB flash drive The USB port on the front panel allows you to playback Hi-Res audio formats including DSD128 (5.6MHz) and PCM 24/192.
Up-conversion up to 384kHz/32-bit PCM and 24.5MHz DSD Employing RDOT-NEO (Refined Digital Output Technology NEO), a fluency algorithm that renders digital audio signals smoothly, the NT-505 up-converts PCM digital signals up to 384kHz/32-bit PCM and 24.5MHz DSD. With the up-conversion function activated, you will hear an improvement in quality, even with music that you are familiar with.

“Bulk Pet” USB transfer technology for enhanced audio quality
When transferring large volumes of digital data for Hi-Res audio sources through USB cables using conventional isochronous transfer mode, large variations can occur in the processing loads of the sending computer and the receiving USB  DAC. This can cause the sound to drop out and other problems to occur. However, with our new USB transmission technology – dubbed “Bulk Pet” – a fixed amount of data is transmitted constantly, leveling out the processing burden on both devices and contributing to stable data transmission. Changing the processing burden on the computer directly affects audio quality so users can select the setting they prefer (from four transmission modes).  Bulk Pet” is a registered trademark of Interface Corporation. For more information about “Bulk Pet”, please visit the Interface Corporation website. https://www.itf.co.jp/prod/audiosolution/bulk-pet/bulk-pet- enn

What’s in the Box
In your package you’ll find the following contents:

•  TEAC NT-505 USB DAC Network Player
• Remote
•  Power Cord
• Manual
• Coaxial to Mini-Optical Adapter

SETUP
Now let’s get started with the device setup!

• How will you play your music?
•  What is your audio source?

Streaming
If streaming via Tidal, Qobuz, Spotify, Roon (or any other service) you will be using the Network option. This device has an internal Wifi, as well as an Ethernet port for streaming. We strongly recommend using the LAN connection for the best experience. Wifi can occasionally have signal issues with all streaming devices. This device also also has AptX bluetooth for streaming from a local device (such as your tablet or phone).

Local Digital Source
If playing music from your computer, CD Transport, or Game Console you have the following ports available: 1x Coaxial, 1x Optical, a USB type B port on the back of the unit. There is also a shared optical/coax in on the front of the device.

Storage
There is a USB type A port of the front of the device where you can play music directly off your thumb drive or external hard drive.
Headphones
For Listening with headphones you have a singular 3.5mm jack found on the front of the device. If your headphones do not have a 3.5mm connector, you can purchase a custom cable or an adapter from moon-audio.com.

CAUTION While wearing headphones, do not connect or disconnect them or turn the unit on or off. Doing so could result in a sudden loud noise that could harm your hearing.
Speakers
There are a pair of XLR and a pair RCA pre-amplified outputs found on the back of the unit that can be used with a speaker amplifier or directly with active speakers.

• Remember to turn the volume down when first setting up active speakers!

Powering On and Settings.
To turn the unit, make sure the power plug is plugged in securely, and then flip the power switch! On the front of the device you have two knobs and a button. The large knob to the right just controls the volume of the device. The knob to the left of the screen (labeled “source”) and the small button next to it (labeled “menu”) is how you will be able to change your device settings. Just turning this knob will scroll through the inputs selection menu. Select the input you want by scrolling through the options and then stopping on the source you wish to use. After a few seconds the NT505 will update accordingly. Pressing in on the “menu” button will open your settings menu. Scroll through the  settings with the “source knob” to select the setting to modify.
Press the “Source” knob to select the setting to change. Turn the knob to select the option you want, and then press the source knob in again to set your change.

The menu option are as follows:
Auto-Power Saving

•  On- Device will go into standby after a period of inactivity.

•  Off- Device will stay on until turned off.
  Version Info

• Displays current firmware and driver information for your device
  Upconvert

•  Upconverts your music to sound like a higher resolution file
  ○ Off
  ○ 2X filtering
  ○ 4x filtering
  ○ 8x filtering
  DSD 256
  DSD 512
  Digital Filter (PCM)
  Changes the role of and sound signature of this device.

• Off (No additional FIltering)

• Sharp roll-off

• Slow roll-off

•  Short Delay Sharp

•  Short Delay Slow

•  Low Dispersion

Digital
audio
input| USB| OFF| 2x Fs| 4x Fs| 8x Fs| DSD
256| DSD
512
Input sampling
frequency| Sampling frequency after upconversion
[kHz]| [kHz]| [MHz]
32| –| 32| 64| 128| 256| 8.| 163
44.| 44.| 44.| 88.| 176.| 353.| 11.| 23.
88.| 88.| 88.| 88.| 176.| 353.| 11.| 23.
176.| 176.| 176.| 176.| 176.| 353.| 11.| 23.
–| 353.| 353.| 353.| 353.| 353.| 11.| 23.
–| 706.| 706.| 706.| 706.| 706.| 11.| 23.
48| 48| 48| 96| 192| 384| 12.| 25.
96| 96| 96| 96| 192| 384| 12.| 25.
192| 192| 192| 192| 192| 384| 12.| 25.
–| 384| 384| 384| 384| 384| 12.| 25.
–| 768| 768| 768| 768| 768| 12.| 25.

These values are not converted.

• The maximum upconversion is 8x Fs.
• Upconversion is not possible when the input is DSD.
• During MQA playback, 4x Fs upconversion will be used regardless of the setting.

Digital Filter (DSD)

• Wide
•  Narrow

Clock Sync
If you have an external Master Clock, such as the TEAC CG 10M you can turn off and on the Clock Sync function in this menu.
More on Master clocks from TEAC: “Digital signals, such as PCM, are divided extremely finely into tens of thousands of parts per second along the time axis. If that fundamental time axis fluctuates during the process of D/A conversion it is much more difficult to render an analog audio waveform that is identical to the original. This is all the more true with DSD audio signals that function at MHz speeds in the time axis. For this reason, having as accurate a clock signal as possible is very important for the re-creation of digital audio signals, particularly HiRes files that use ultra-high sampling rates, such as DSD 22.5MHz or PCM 768kHz.” Line out Select Choose the line out, the output you wish to use.

• RCA
• XLR

Line out Level
Adjust the volume of your pre-amplified outputs.

•  Fixed 0db
• Fixed +6db
• Variable
• Off

Dimmer
Controls how much the screen dims (if at all) when the device has not been changed in awhile.
Volume Type
Steps 1 through 100
Decibels
Display Type
What shows on your display when not in a menu!

•  Volume
• Sample Frequency

The application
TEAC has an app “HR Streamer” available via the App Store for iOS and in the Google Playstore for Android users. Using this app you can remotely control this device provided that your tablet/phone is a on the same network connection as your TEAC NT 505.
Specifications

TECHNICAL FEATURES

• USB Input:

• PCM: 16/24/32 bit; 44.1k/48k/88.2k/96k/176.4k/192k/352.8k/384k/705.6k/768k Hz

• DSD: 2.8M/5.6M/11.2M/22.5M Hz

• Coaxial digital input:

•  PCM: 16/24 bit; 32k/44.1k/48k/88.2k/96k/176.4k/192k Hz

• DSD: 2.8M/5.6M/11.2M/22.5M Hz

•  Optical digital input:

• PCM: 16/24 bit; 32k/44.1k/48k/88.2k/96k/176.4k/192k Hz

• DSD: 2.8M/5.6M/11.2M/22.5M Hz

• DAC Section:

• USB DAC: Asahi Kasei Microdevices AK4497×2

• Up-conversion: up to 384kHz/32-bit PCM, 22.5MHz DSD

•  Digital filters-PCM filters: Sharp Roll Off, Slow Roll-Off, Short Delay Sharp, Short Delay Slow, Low Dispersion, off

• ▪ Digital Filters-DSD cutoff frequencies:
  ○ Narrow : 39kHz (at 2.8M), 78kHz (at 5.6M), 156kHz (at 11.2M) or 312kHz (at 22.5M)
  ○ Wide : 76kHz (at 2.8M), 152kHz (at 5.6M), 304kHz (at 11.2M) or 608kHz (at 22.5M)

•  LAN Section:

• Connector: RJ-45×1(1000Base-T)
  ○ MQA Decoder: Built-in

•  Headphone outputs:

• Connector: 1/4” (3.5mm) Stereo TRS jack×1 (gold-plated)

•  Maximum output: 500mW + 500mW (into 32Ω)

• Supported impedances: 16 to 600Ω

• Audio performance:

• Frequency Response: 10 to 80,000 Hz (+1/-3 dB, 192kHz PCM input, RCA output, digital filter off)

•  Total harmonic distortion: 0.002% or less (192kHz PCM input, RCA output, digital filter off)

• S/N ratio: 110dB or higher (192kHz PCM input, RCA output, digital filter off)

PERFORMANCE

• Audio Inputs:
• USB (rear): USB B port, USB 2.0, asynchronous mode transfer, bulk transfer
• Compatible Software: TEAC HR Audio Player (Windows, Macintosh)
• COAXIAL digital (rear): RCA pin×1 (gold-plated)
• Input level: 0.5Vp-p
• Input impedance: 75Ω
•  Optical digital (rear): TOS-link×1
•  Input level: -24.0 to -14.5dBm peak
• Coaxial digital (front): 1/8” (3.5mm) mini×1 (combined with optical digital input, detected automatically)
•  Input level: 0.5Vp-p
• Input impedance: 75Ω * 1/8” Mini – RCA conversion cable included
•  Optical digital (front): 1/8” Mini Optical×1 (combined with coaxial digital input, detected automatically)
• Input level: -24.0 to -14.5dBm peak
•  USB (front): USB A port
•  Supported media: USB Flash Drive
•  Bluetooth  : version 4.0
• Output class: Class2 (Range: approx. 33ft/10m)
•  Supported profiles: A2DP, AVRCP
• Content protection: SCMS-T
•  Supported codec: LDAC™, Qualcomm ® aptX™ HD, aptX™, AAC, SBC
•  No. of paired devices: maximum 8 devices
• Audio outputs:
•  XLR balanced: XLR×1 pair (gold-plated)
• Output level: Fixed (0dB), fixed (+6dB), variable, output off (selectable)
• Maximum output level:
• 2.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (0dB))
• 4.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (+6dB))
• 12.0Vrms (1kHz, full scale, into 10kΩ, when set to a variable)
• Output impedance: 188Ω
•  RCA unbalanced: RCA pin×1 pair (gold-plated)
•  Output level: Fixed (0dB), fixed (+6dB), variable, output off (selectable)
•  Maximum output level:
• 2.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (0dB))
• 4.0Vrms (1kHz, full scale, into 10kΩ, when set to fixed (+6dB))
•  6.0Vrms (1kHz, full scale, into 10kΩ, when set to variable)
•  Output impedance: 150Ω

Review – https://www.moon-audio.com/teac-nt-505-review
Video – https://moon-audio.com/videos/v/teac-nt-505-product-guide- video/227382876

Layout

Album artwork provided by: e-Onkyo music 0.01140 Music © Warner Music Japan
http://www.e-onkyo.com/music/
This is the main screen of the TEAC HR Streamer app.
Playback area: Use to show the current file and control its playback. Playlist: This shows songs that have been added to the playlist. Library: This area shows the music library. Search for and select audio files to put in a playlist here.

• This document uses iPad screen examples for an explanation.
• This document explains network player functions using connection with a TEAC NR-7CD network CD integrated amplifier as an example.
• This document uses examples with MinimServer, which is the recommended server software, used as a NAS.

Getting started

1. Connect the TEAC two-k audio player and the NAS to the network and turn them or.
2. Make settings so the network player can be used. (See toe network payer owner’s manual for de tea’s.)
3. ie MAC H3 Streamer app.
4. Tap the Setup button to open the Setup Menu. (Devices :ha: can be connected; NI automat cal y be recognized.)
5. Selec: the TEAC network audio player as the Music Player.
6. For the Music Uoray, select the VAS you want to playback. The music files on my selected music server we I appear in the library area.

NOTE

• The first time a library is loaded, castling the alarm artwork will take some time to the fir ire the cache will be used, making open non smoother.
• The USB drive connected to :ne ..153 port on ne bark of the player will be F.-lawn with a name that corn-bires the unit name and ‘11513 Music. Server’ such as “TEAC. NP-/C) 1.SB Music Server”.

ATTENTION

•  The following explanation is about use will MiiirnServer software. If server software other: ha n Minirrrver is …Jose, some Or the functions described below could be unusable. Ivory leading might not completely. and some Res night did not play properly.
• Libraries on USD drives car only be shown using folder view.
• Specifications an external appearance might be changed without notification for the purpose of improvement.

Buttons appear for the sort items that have tags set in the audio files and can be used for sorting.

Sorting

Audio files can be sorted based on the information (tag data) they contain.

Song name
Album title
Artist
Composer
Genre
Year
Recently added files
Show in folder view This is useful for browsing files that cannot be managed using tags.
Access streaming service, for example.
NOTE
Using folder view, the folder structure on the server can be shown as is, For example, you could create folders named “DSD: “High Res,”FLAC and “MPS’ allowing you to sort with classifications that would otherwise not be possible. 
Tap the area outlined in orange to view the selected folder history, allowing you to return to and view previous locations.

Changing the display

| This shows album artwork.
---|---
Song group view Show songs in albums and other groups.
Heading view Show headers according to the active sort but-ton with the number of items included for each. Available display options depend on sort conditions.

Maximizing the browser

This maximizes the size of the library display.

Zooming

When album art is shown, you can pinch to change the size of the artwork (and the number of albums that can be shown on one screen).

Creating a playlist

You can add songs to a paly by tapping song names id group headers.
Your car charge nova this operation works with theA.dd to P Baylis:” item on the Setup screen.
Sing e Tap: Add to playlist wi:h a single tap. Double-tap:
Ado to play sl with a dc.-Ible tap. (Se section of RR multiple songs is possible.;
You car set what: happens air a song k added to the playlist. Play Now: After acdira a song to the playlist; start playback Play _aler /Cm add ng. a sung .o t le playlist, do not start playback -Ind the Play button is pressed.
NOTE

| Play immediately Add the selected song to the bottom of the play-list and start playback of that song.
---|---
Play next Add the selected song to the playlist after the currently playing song.
A play later Add the selected song to the bottom of the playlist.
Change the playlist currently playing After clearing the playlist, this adds the selected song.
Select all songs shown
Deselect all selected songs. Follow the procedures in the next section to add entire albums easily.

Information display screen

Press and hold a song or album on any screen to open an information pop-up.
You can do the following on the information screen.
You can add an album to a playlist from the con. When the album information is shown, you can add the entire album
Tap an information item shown to search again by that type of information.

Searching

Select a sort button to use and input the search characters.
• The illustration to the left shows an example of searching for Rocleafter selecting Genre.
You can set the search mode in the Setup Menu.
Filter: This mode allows you to search by filters. Only items that meet the search conditions will be shown.
Find: This is the ordinary search mode. Items that meet search conditions can be highlighted using the. (next) and n(premous) buttons.

Playlist

Album groupings

Songs from the same album can be shown grouped together in a playlist to make browsing easier. (The blue outline shows a group.)

Song currently playing

The playback mark appears to the left of the name of the song being played. If the playlist is long, the playback mark might be next to a song that does not appear on the screen. If this is the case, tap the jump button to quickly change the view to show the playing song.
NOTE
If you turn on °Follow Now Playing-in the Setup Menu, the playlist display will always be updated to show the playing song in the center of the screen.

Editing;

Tap the Edit button to enable playlist editing. Tap the button at the left end and then tap the **delete** button to delete the song or album from the playlist. Tap the left end again instead to cancel. Drag the three lines at the right end to change the play-back order. When done editing, tap the Edit button to return to the original screen.

Saving and loading

Use the Playlist button (outlined in blue) to save and load playlists. To save a playlist, input the playlist name and press the Save button (outlined in orange). To load a playlist, tap the playlist name. A search field is shown at the top. Use this to input part of a playlist name to search for it.

Clearing playlists

Tap the garbage Icon to delete the currently loaded playlist.

Playback area

Song information

The following information appears next to the artwork.

• Song name
• Artist
• Album title
• Codec
• Sampling frequency
• Quantization bit depth
• Data rate

Tap the album art to zoom it to fill the screen. Tap it again to return to the previous display.

Operation panel

Skip buttons
Jump to the previous or next song in the playlist. Tapping the skip back button during playback will jump to the beginning of the same song unless already within 1w seconds of its beginning. In this case, it will jump to the beginning of the previous song.
Play/pause button Tap when stopped to start playback. Tap when playing to pause playback. (There is a nonstop button)
Shuffle button Play the songs in the playlist randomly.
Repeat button
Play the songs in the playlist repeatedly. To repeat a playback of a single song, use a playlist with just that song.

Elapsed time

The elapsed time of song being played (minutes: seconds)/ song length (minutes: seconds) Tap the elapsed time ring to open the control pop-up.
Restart button Play from the beginning of the song.
Slider This shows the current playback position. Tap to change the playback position.
Search buttons Move the playback position. Press and hold to move the playback position. and release to start playback.![TEAC NT 505 USB Dac Network Player

• filter play on](https://manuals.plus/wp-content/uploads/2022/02/TEAC-NT-505 -USB-Dac-Network-Player-filter-play-on-182x300.png)

Volume

The volume setting is shown as a value between 0 and 100. Tap the volume ring to open the control pop-up.
Mute button Use this button to mute the sound temporarily.
Slide to change the volume.
buttons Tap to change the volume.
ATTENTION
Slider The Setup screen has a “Volume adjustment” option, Setting this to ‘Off” will fix the volume at the current value.

Internet radio services

If you have an Internet radio service account, you can stream playback from it using the TEAC network audio player.
NOTE

•  The Internet radio services that are supported could change.
• For details about an Internet radio service, refer to its website or other resources.

The following explanation uses TIDAL as an example.

Tap the icon shown outlined in orange. The login screen will only appear the first time. Log in using your account information.

NOTE

• This account information will be retained and login will occur automatically the next time and in the future.
• You can make changes and log out using the settings menu.
• If you do not have an account, you can tap”Sign Up” to create an account on the service website.

After login, the items provided by the service appear in the library area, so you can access a variety of music from it. You can also search by artist, song or other data directly from the search area (outlined in orange).
You can add songs and albums to playlists using the same operations as normal with TEAC HR Streamer.
Apple and Pad are trademarks of Apple Inc. Company names, product names and logos in this document are the trademarks or registered trademarks of their respective owners.
0417 MA-2379A

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