Teac UD-503 - 21090

Teac UD-503


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 DAC USB dual mono compatible DSD 11.2MHz, diseño fullbalanceado con previo de auriculares.

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USB DAC that supports 11.2MHz DSD and 384kHz/32-bit PCM
Dual-monaural circuit structure used from the power supply to the digital and analog sections
Both left and right channels have their own high-end AK4490 DACs, which are made by Asahi Kasei Microdevices Corporation
Two high-capacity toroidal core power transformers—one each for left and right channels
Isolation circuit that completely separates the digital and analog sections electrically
4 TEAC HCLD buffer amplifiers, which are current-enhancing output buffer circuits, are used for the line amplifiers
Up-conversion to formats up to 12.2MHz DSD and 384kHz/32-bit PCM using an FPGA (programmable IC) that utilizes a fluency function
Two types of DSD filter and four types of PCM digital filter, as well as an OFF mode
10MHz external clock input supported (available during USB asynchronous transmission)
Two high-precision internal clocks—one each dedicated to 44.1kHz and 48kHz signals (available during USB asynchronous transmission)
One pair of RCA analog unbalanced inputs
Volume output can be set to fixed, fixed +6dB or variable for the one pair of XLR analog balanced outputs and one pair of RCA analog unbalanced outputs
XLR jack polarity can be set (2 HOT or 3 HOT)
TEAC QVCS high-precision volume circuit
Large digital volume display with excellent visibility and remote control with one-button operation of various functions
OELD display shows input signal type and various settings (with 3-level dimmer and off functions)
Fully-balanced drive headphone amplifier with discrete construction and maximum output of 700 mW + 700 mW
Headphone amplifier can be switched among 3 drive types: unbalanced, balanced and active ground
Digital inputs on the back include one USB, one coaxial and one optical
Combined coaxial mini/optical mini digital input connector on front is convenient for digital input from portable devices
Low power consumption design and automatic power saving function meet modern expectations
The full-metal body realizes both vibration control and elegant style in an A4-size body that enables placement on a desktop
TEAC original design for three-point support using pinpoint feet with attached bases
Compliant with RoHS

Digital Audio Input
Connector RCA jack x 1
1/8" (3.5mm) Mini jack x 1 (compatible with Optical Input)
Input Level 0.5 Vp-p
Input Impedance 75 ohms
Supported Format DSD, PCM
DSD 2.8MHz (176.4kHz/24bit DoP transfer)
PCM 32k / 44.1k / 48k / 88.2k / 96k / 176.4k /192kHz, 16 / 24bit
Connector TOS link x 1
1/8" Mini Optical jack x 1 (compatible with Coaxial Input)
Input Level –24.0 to –14/5dBm peak
Supported Format DSD, PCM
DSD 2.8MHz (176.4kHz/24bit DoP transfer)
PCM 32k / 44.1k / 48k / 88.2k / 96k / 176.4k /192kHz, 16 / 24bit
Connector USB B type x 1
Supported Format DSD, PCM
DSD 2.8M / 5.6M / 11.2MHz
PCM 32k / 44.1k / 48k / 88.2k / 96k / 176.4k /192k / 352.8k / 384kHz, 16 / 24 / 32bit
Analog Audio Input
Connector RCA jack x 1 pair
Input Impedance 51k ohms
Sensitivity 130mV
Analog Audio Output
Balanced XLR 3-32 x 1 pair
Unbalanced RCA jack x 1 pair
Output Impedance
Balanced 188 ohms
Unbalanced 150 ohms
Max Output Level
Fixed (0dB) 2.0Vrms (XLR/RCA)
Fixed (+6dB) 4.0Vrms (XLR/RCA)
Variable 12.0Vrms (XLR), 6Vrms (RCA)
Frequency Response 5Hz to 80kHz (+1dB/–3dB)
Signal-to-Noise Ratio
Balanced 112dB (A-weighted, 1kHz)
Unbalanced 110dB (A-weighted, 1kHz)
Total Harmonic Distortion 0.0015% (1kHz, LHF: 20Hz to 20kHz)
Headphone Output
Connectors 1/4" (6.3mm) Stereo jack x 2
Format Balanced, Active Ground, Unbalanced
Balanced Tip: HOT, Ring: COLD, Shield: GND
Active Ground Tip: HOT, Ring: COLD, Shield: GND
Unbalanced Tip: L, Ring: R, Shield: GND
Max Output Power
Balanced 700mW + 700mW (32ohms loaded, THD 1%)
Unbalanced 500mW + 500mW (32ohms x 1 loaded, THD 1%)
350mW + 350mW (32ohms x 2 loaded, THD 1%)
Supported Headphone Impedance 16 to 600 ohms
Audio Settings
Up-conversion x8, x4, x2, Off
DSD Cut-off Frequency 50kHz, 150kHz
PCM Digital Filter FIR Sharp, FIR Slow, Short-delay Sharp, Short-delay Slow
Line Output RCA, XLR (Pin2: HOT), XLR (Pin3:HOT)
Line Output Level Fixed (0dB), Fixed (+6dB), Variable, Off
Supported OS
Windows Windows 8.1 (32/64bit), Windows 8 (32/64bit), Windows 7 (32/64bit)
Macintosh Yosemite (OS X10.10), Mavericks (OS X10.9), Mountain Lion (OS X10.8), Lion (OS X10.7)
Operation Power
US/Canada AC 120V, 60Hz
UK/Europe AC 230V, 50Hz
Power Consumption 16 Watts (0.4 Watts at 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 9.3 lbs. / 4.2 kg
Accessories Remote control (RC-1319), AAA Batteries x 2, RCA-Mini Plug Cable, Power Cord, Cushion for Foot x 3, Owner's Manual (including Warranty card)

Valoraciones de clientes

  • 1 valoración

5 estrellas de un máximo de 5


Magnífico DAC

Compra verificada

Este es mi primer DAC. Llevo varios dias probándolo. Por ahora solo le tengo conectado al PC por usb. La calidad del audio es sorprendente:transparencia,dinamismo,estereo. Estoy redescubriendo todos mis SACD. Reproduce a las mil maravillas del DSD nativo. Me queda aún un largo rodaje pero mis primeras impresiones magníficas.

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