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TEAC NT-505-X Network Audio Player / USB DAC / Preamplifier with Bluetooth Capability in Black

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$2,249.99
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TEANT505XB

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  • Product Description

    NT-505-X: Opening a window to music world on your desktop. A new experience of network audio starts with the NT-505-X that inherits our audio design know-hows and Internet technologies.
    The NT-505-X is a class-leading 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 dual mono structure processes stereo signals with higher purity, and the D/A converter section uses one ES9038 Q2M (made by ESS Technology) in each of the left and right channels.

    This model achieves a high signal-to-noise ratio by using each DAC in mono mode. Moreover, when used as a USB DAC, its high specifications enable native playback of 22.5MHz DSD and 768kHz/32bit PCM formats. The Analog section, which is one of the keys to sound quality, includes four TEAC-HCLD2 buffer amp circuits that allow different drive modes, – fully-balanced drive for balanced output, and parallel drive mode for unbalanced output – to achieve enhanced acoustic expression.

    On the network audio side, the NT-505-X supports high-quality music subscription services, namely TIDAL, Qobuz and Roon Ready*. There’s also a built-in MQA decoder, and you will enjoy unlimited music content on the Internet thanks to its high-quality digital and Analog processing technologies.

    Furthermore, you can also enjoy wireless playback from smart devices with high audio quality thanks to the high performance specifications of the DAC.

    * Not every service is available in every country.

    ESS Technology ES9038 Q2M high-performance DAC supports resolutions up to 22.5MHz DSD and 768kHz/32bit PCM
    We have employed one DAC chip, a crucial component for digital audio, in each of the stereo channels. The ESS Technology ES9038Q2M SABRE32 Reference DAC we use has a strong reputation in the high-end audio market. Using 32-bit HyperStream® II DAC architecture and Time Domain Jitter Eliminator (both of which are ESS original technologies), an outstanding dynamic range is realized, and linearity is increased in the D/A conversion. As a result, clear and accurate audio playback with superior dynamic characteristics has been made possible.

    Dual monaural circuit design and fully-balanced design
    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 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.

    Support for popular and convenient network functions, including OpenHome and Roon Ready
    Common control apps that support OpenHome can be used with the NT-505-X, which also supports this platform. Moreover, playlists on the NT-505-X can be managed using TEAC HR Streamer and other control apps that support OpenHome. Gapless playback is also supported. With support for Roon Ready, functions provided by RAAT (Roon Advanced Audio Transport), including high-quality audio playback, easy and convenient operation using apps, and multi-room synchronized playback, can be used without limits.* Support for Roon Ready will be added in a firmware update made available after product release.

    Supports Spotify Connect, TIDAL, Qobuz, and TuneIn
    By connecting the unit to a home network using a LAN cable, music files saved on NAS music servers and computers can be accessed and played back. In addition, this unit also supports the Spotify, TIDAL, and Qobuz subscription Internet music streaming services. These enable listening to tens of millions of lossless CD-quality (44.1kHz/16bit) music tracks.

    MQA decoder for master quality streaming
    In order to achieve an Analog waveform closer to the original signal, the NT-505-X supports MQA decoding while also supporting high sampling rate Hi-Res formats like DSD512 (22.5MHz) and PCM 32bit/768kHz. 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.

    High-quality wireless audio streaming via Bluetooth®
    In addition to conventional SBC and AAC codecs, the NT-505-X also supports LDAC™ (24bit/96kHz Hi-Res audio transmission), and Qualcomm® aptX™ HD, a codec that uses 24bit/48kHz format transmission. These allow you to playback playlists on your smartphone and tablet wirelessly.

    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 24bit/192kHz downloaded from Internet or digitally recorded with the SD-500HR.

    Dual onboard clocks for 44.1k and 48kHz, and an external clock input
    Instead of referencing 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-X 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/CG-10M-A, for yet further upgraded audio playback with excellent sound quality.

    Up-conversion up to 384kHz/32bit 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-X up-converts PCM digital signals up to 384kHz/32bit 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 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).

    7 types of PCM digital filters
    There are seven types of PCM digital filters, allowing you to apply the filter that best matches the file format or type of music you're listening to. The filter can be changed at the touch of a button on the remote control, allowing you to enjoy the different sonic nuances of each filter.

    Dual high-capacity toroidal-core power transformers
    The dual monaural theme continues. Two oversized high-capacity toroidal-core power transformers are employed in the NT-505-X, supplying stable, individual current sources for each of the left and right channels. This means neither channel will be affected by changes in the power consumption of the other during digital processing.

    Features at a glance:

    • Hi-Res audio playback supporting DSD512 (22.5MHz) and PCM 768kHz/32bit PCM
    • DSD128 (5.6MHz) and PCM 192kHz/24bit Network streaming from NAS/PC
    • ESS Technology ES9038 Q2M converter each for left and right channels
    • 7 types of PCM digital filters
    • Up-conversion up to 24.5MHz DSD and 384kHz/32bit PCM
    • Dual on-board clocks for 44.1kHz and 48kHz frequencies
    • 10MHz external clock input
    • Supports MQA decoding
    • Spotify, TIDAL, and Qobuz music subscription services*1
    • Roon Ready
    • Front USB port supporting Hi-Res playback from USB flash drive
    • Bluetooth® receiver supporting LDAC™, Qualcomm® aptX™ HD, AAC and SBC
    • Original TEAC-HCLD2 enhanced-current output buffer circuit
    • Dual monaural circuit design
    • Dual toroidal-core power transformers for each channel
    • TEAC-QVCS quad volume control system
    • 1/8" (3.5mm) 4-pole stereo headphone jack supporting ground-separate drive
    • Full-dot OLED display with dimmer function
    • Newly-developed “Stressless Foot” design with three support points
    • Semi-floating design Top Panel
    • Bulk Pet*2 USB transferring technology with four transfer modes for various sound characters
    • Free TEAC HR Audio Player for Windows/Mac
    • Free TEAC HR Streamer app for iOS/Android devices
    • *1 Not every service is available in every country.
    • *2 ”Bulk Pet” is a registered trademark of Interface Corporation.

    Spec description

    Supported formats  
    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 2.8MHz(supported with 176.4kHz/24-bit DoP format)
    Optical digital input  
    PCM 16/24 bit
    32k/44.1k/48k/88.2k/96k/176.4k/192k Hz
    DSD 2.8MHz(supported with 176.4kHz/24-bit DoP format)
    DAC section  
    USB DAC ESS Technology ES9038 Q2M ×2
    Up-conversion up to 384kHz/32-bit PCM, 24.5MHz DSD
    LAN section  
    Connector RJ-45×1(1000Base-T)
    MQA Decoder Built-in
    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®  
    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 device maximum 8 devices
    Audio outputs  
    XLR balanced XLR×1 pair (gold-plated)
    Output level Fixed (0dB), fixed (+6dB), variable, output off (selectable)
    Maximum output leve 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 variable)
    Output impedance 188Ω
    RCA unbalanced RCA pin×1 pair (gold-plated)
    Output level Fixed (0dB), fixed (+6dB), variable, output off (selectable)
    Maximum output leve 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
    Headphone outputs  
    Connector 1/8” (3.5mm) Stereo TRS jack×1 (gold-plated)
    Polarity Tip:L+, Ring1:R+, Ring3:L-, Sleeve:R-
    Maximum output 500mW + 500mW (into 32Ω)
    Supported impedances 16 to 600Ω
    Clock section  
    Internal clock  
    Type Crystal oscillator
    Number of clocks 2 (44.1kHz and 48kHz)
    External clock input  
    Connector BNC (gold-plated)
    Input frequency 10MHz
    Input impedance 50Ω
    Input level Rectangle wave: equivalent to TTL levels
    Sine wave: 0.5 to 1.0 Vrms
    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)
    Power supply  
    US/Canada AC 120V 60Hz
    UK/Europe AC 220 to 240V 50Hz
    Power consumption 18W (0.4W in standby)
    dimensions (including protrusions) 290(W)×84.5(H)×248.7(D) mm / 11.4”(W)×3.3”(H)×9.8”(D)
    Weight 4.1kg / 9.1lbs
    Included accessories Power cord, RCA mini plug adapter cable, remote control (RC-1330),2 AAA batteries for remote control, Owner's Manual (with warranty)
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