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Teac UD-501-B Dual-Monaural D/A Converter with USB Streaming (Black)

B&H # TEUD501B Mfr # UD-501-B
Usually ships in 7-14 business days

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This is a special order item and is non-cancelable and non-returnable. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment.

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For international orders, credit cards will be charged at time you place your order.

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You Pay: $849.99

The black UD-501-B Dual-Monaural D/A Converter with USB Streaming from TEAC supports DSD (Direct Stream Digital) 2.8 / 5.6 MHz file native playback by ASIO 2.1 or DoP methods or up to 32-bit / 384 kHz PCM. This unit comes with two 32-bit BurrBrown DACs per channel and JRC MUSES op-amps, fully balanced XLR and unbalanced RCA outputs, and a toroidal-core power supply. The converter features a dual monaural design.

You can use the UD-501 Converter with any application that plays audio on your Mac or Windows computer, such as Windows Media Player or Apple iTunes. To play high-resolution audio, however, you will need specialized software. You will also need to install the driver on Windows (Mac OS X sees the device without a driver).

Note! TEAC provides a high-resolution audio player for Windows, which plays high sample rate files and DSD files. You can download more information from TEAC's website.

Advanced Digital Circuits for the Fine Audio Formats
  • DSD 2.8 / 5.6 MHz Native File Playback by ASIO 2.1 or DoP: Both 2.8 / 5.6 MHz DSD files are processed in the native mode to properly convert DSD into an analog signal, and skipping PCM conversion in between. ASIO2.1 and DoP (DSD over PCM) playback are also supported (Mac supports DoP only with standard driver).
  • Up to 32-Bit / 384 kHz PCM File Playback: With the PCM file format, up to 32-bit / 384 kHz is supported.
  • Asynchronous Transfer Mode: By ignoring clock signal from a PC, transfer timing is controlled by more accurately, nearly eliminating clock noise and allowing digital data to travel unaffected.
  • Variety of settings to match 3 types of digital filters are provided for PCM playback, while 4 types of cut-off filters are provided for DSD playback. Also, shutting down unnecessary circuits-USB circuit when S/PDIF input is selected or line out circuit when headphones are connected for pure audio processing.
  • Reducing Jitter Noise by 192 kHz Up-Converting: With PCM file sampling at a frequency less than 192 kHz, users are able to convert up to 192 kHz in order to reduce jitter noise, or keep the original sampling rate to enjoy the original sound.
Pure Audio Circuits, Designed with a Classic Audio Pedigree
  • Dual Monaural Circuits to Eliminate Signal Interference and Maximize Performance: The digital and analog sections, DAC, and operational amplifiers are designed in the dual monaural design to eliminate interfering noise to other channels. This maximizes their potential and achieves a pure audio processing signal.
  • 32-Bit Compatible BurrBrown PCM1795 DAC on Each Channel: Celebrated BurrBrown PCM1795 DAC is employed on each channel. With the PCM1795 DAC alone, 32-bit processing is supported with 123 dB S/N ratio.
  • Dual MUSES8920 Operational Amplifier on Each Channel: Two MUSES8920 operational amplifiers are employed on each channel. The MUSES8920 amplifier was developed for hi-fi components to deliver clear 3-dimensional sound.
  • Individual Toroidal-Core Power Transformer on Each Channel Maintaining Total Dual Monaural Design: The 2 toroidal-core power transformers are energy efficient and offer a stable current supply. Employing them on both the left and right channels ensures that current is delivered to each channel exclusively.
  • RCA Output with Parallel Buffer for Better Drivability: 2 operational amplifiers are connected in parallel with the lineout circuit section to improve the drivability of the lineout signal. This helps achieve more of a linear analog output signal.
High-Standard Hardware Designs for Any Listening Environment
  • Full-Metal Body, Small Footprint That Can Be Placed on a Desktop: Not only the front panel but also both the side and top panels are constructed of aluminum and attached to a robust steel chassis. These heavy parts eliminate vibrations and allow all internal circuits to always perform under stable conditions. An A4-sized body allows the UD-501 converter to fit any small space. The reference 501 series defines a standard to fit all modern interior with a space-saving design.
  • Large Number of Inputs / Outputs for Full-Scale Hi-Fi System Integration: The UD-501 converter provides 2 optical and coaxial digital inputs, 1 pair of XLR, and 1 pair of RCA analog audio outputs. The RCA lineout jacks have an exclusive clearance zone, so a high-grade pin cable with a large shell can be connected. An output terminal such as RCA or XLR is selectable; the XLR connectors have 2=HOT or 3=HOT switchable polarity. A detachable AC cable with a 3-polar socket allows the user to upgrade to a high-grade AC cable.
Additional Features
  • Supports DSD 2.8 / 5.6 MHz playback (via USB)
  • Supports PCM 32-bit / 384 kHz playback (via USB)
  • Supports PCM 24-bit / 192 kHz playback (coaxial)
  • Supports up to 24-bit / 96 kHz playback (optical)
  • Supports DSD native playback by ASIO2.1 and DoP method
  • Exclusive driver software for Windows
  • Standard driver software for Mac
  • Asynchronous transfer mode
  • Four selectable analog filters (playback USB, DSD)
  • Three selectable digital filters (playback USB, PCM)
  • Non-integral up-conversion to 192 kHz when input signal is less than 192 kHz (On / Off selectable)
  • Throughout dual monaural design from power transformer to output section
  • Two toroidal-core power transformers
  • Two BurrBrown PCM1795 DAC
  • Four MUSES8920 operational amplifiers
  • Parallel buffer for RCA output
  • Power supply to the USB circuit is switchable
  • Lineout circuit can be disabled when headphone is used
  • Low power consumption (maximum 13W)
  • Auto power saving mode (On/Off switchable)
  • Display mode switchable (Show Up conversion mode and selected filter)
  • Line out switchable (XLR or RCA)
  • Polarity change on XLR (2=HOT or 3=Hot)
  • Full metal body
  • Organic EL display with dimmer
  • One USB audio input
  • Two optical inputs
  • Two coaxial inputs
  • One stereo RCA/XLR
  • 3-polar AC socket with a detachable AC cable
Coaxial 2 x RCA jacks (0.5 Vpp / 75 Ω)
Sampling Frequency PCM Data: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Bit Rates 16 / 24-bit
Optical 2 x Optical digital connectors (-24.0 to -14.5 dBm peak)
Sampling Frequency PCM Data: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
Bit Rates 16 / 24-bit
USB 1 x type B connector (USB 2.0 compliant)
Sampling Frequency PCM Data: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz
Bit Rates 16 / 24 / 32-bit
Sampling Frequency DSD Data: 2.8 / 5.6 MHz
Analog Audio Outputs
Output Impedance 88 Ω
Maximum Output Level 4.0 Vrms (1/full scale, into 10 kΩ)
Frequency Range 5 Hz to 80 kHz (-3 dB)
S/N Ratio 115 dB
Distortion 0.0015% (1 kHz)
RCA 1 x RCA jack pair
Output Impedance 22 Ω
Maximum Output Level 2.0 Vrms (1/full scale into 10 kΩ)
Frequency Range 5 Hz to 80 kHz (-3 dB)
S/N Ratio 115 dB
Distortion 0.0015% (1 kHz)
Headphone Output
Connector Standard 6.3 mm stereo jack
Maximum Output 100 + 100 mW (into 32 Ω)
Power Supply 120 VAC, 60 Hz
Operating Temperature 41 to 95˚F (5 to 35˚C)
Operating Humidity 5 to 85% (no condensation)
Storage Temperature -4 to 131˚F (-20 to 55˚C)
Power Consumption Maximum 13 W (Auto power save standby mode: 0.1 W)
Overall Dimensions (WxHxD) 11.4 x 3.2 x 9.6" (290.0 x 81.2 x 244.0 mm)
Net Weight 8.9 lb (4.0 kg)
Teac UD-501-B Dual-Monaural D/A Converter with USB Streaming (Black)
  • AC Cable
  • AC Plug Adapter (3P-2P)
  • Stereo RCA Cable
  • Limited 1-Year Warranty
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