USB DAC/Headphone Amplifier TEAC UD-503
- Dual-monaural USB DAC that supports 11.2MHz DSD with built-in fully-balanced/parallel-unbalanced headphone amplifier.
- The UD-503 is a dual-monaural USB DAC and fully-balanced headphone amplifier in a compact body with a footprint the size of a piece of paper. It represents the distillation of TEAC audio design expertise developed for over 60 years with audiophile design concepts.
Features
- Two built-in AK4490 DACs made by Asahi Kasei Microdevices support resolutions up to 11.2MHz DSD and 384kHz/32-bit PCM.
- Dual-monaural structure thoroughly separates independent left and right circuits from the power supply to the output stage.
- Built-in preamp circuits are ideal for setting up systems with power amps and active speakers.
- Analog RCA input pair enables use with analog sources.
- In addition to fully-balanced operation, the headphone amplifier supports parallel-unbalanced and active ground headphone operation.
- Our original TEAC-HCLD output buffer circuit, which is a current-enhancing output buffer circuit, conveys the dynamism of music.
- Capable of upconversion up to 12.2MHz DSD and 384kHz PCM.
- TEAC-QVCS high-precision volume control with a four-circuit structure allows 256 setting steps.
- In addition to high-precision internal clocks, 10MHz external clock input is also supported.
- Full-metal body with three independent pinpoint feet realizes high vibration suppression and stability.
Specifications
| Model | UD-503 |
| Supported Format | |
| USB input | - DSD: 2.8/5.6/11.2MHz - PCM: 16/ 24/ 32bit, 32/ 44.1/ 48/ 88.2/ 96/ 176.4/ 192/ 352.8/ 384kHz |
| Coaxial input | - PCM: 16/ 24bit, 32/ 44.1/ 48/ 88.2/ 96/ 176.4/ 192kHz |
| Optical input | - PCM: 16/ 24bit, 32/ 44.1/ 48/ 88.2/ 96/ 176.4/ 192kHz |
| DAC | |
| D/A Converter | Asahi Kasei Electronics AK4490 x 2 |
| Up conversion | PCM 384kHz or DSD 11.2MHz at the max. (8Fs, 4Fs, 2Fs,OFF) |
| Audio Input/Output | |
| USB Input | USB B-type USB2.0, Asynchronous mode transfer |
| Suggest Application | TEAC HR Audio Player (Windows, Macintosh) |
| Coaxial input (rear) | RCA x1 (Gold plated) - Input level: 0.5Vp-p - Input impedance: 75Ω |
| Optical input (rear) | Optical port (angled type) x1 Input level: -24.0 to -14.5dBm peak |
| Coaxial input (front) | 3.5mm mini x 1 (common use with coaxial input） Input level: 0.5Vp-p Input impedance: 75Ω |
| Optical input (front) | Optical mini x1 (common use with coaxial input） Input level: -24.0 to -14.5dBm peak |
| Analog input (rear) | RCA x1 (Gold plated) Input impedance: 51kΩ Input sensitivity: 130mV |
| XLR balanced output | XLR 3-32 x1 (Gold plated) - Output level setting: Fixed (0dB), Fixed (+6dB), Variable, OFF - Maximum output level: 2.0Vrms (1kHz, full-scale, at 10kΩ load, at Fix 0dB set) 4.0Vrms (1kHz, full-scale, at 10kΩ load, at Fix 6dB set) 12.0Vrms (1kHz, full-scale, at 10kΩ load, at Variable set) - Output impedance: 188Ω |
| RCA Unbalanced output | RCA x1 (Gold plated) - Output level setting: Fixed (0dB), Fixed (+6dB), Variable, OFF - Maximum output level: 2.0Vrms (1kHz, full-scale, at 10kΩ load, at Fix 0dB set) 4.0Vrms (1kHz, full-scale, at 10kΩ load, at Fix 6dB set) 12.0Vrms (1kHz, full-scale, at 10kΩ load, at Variable set) - Output impedance: 150Ω |
| Headphone output | 6.3mm (1/4-inch) Stereo jack x2 (Gold plated) - Polar (at Balance output: Tip: HOT, Ring: COLD, Sleeve: NC (GND) - Polar (at Unbalance output): Tip: L, Ring: R, Sleeve: GND - Maximum output (at Balance connection): 700mW＋700mW (at 32Ω load) - Maximum output (at Unbalance connection): 500mW＋500mW (at 32Ω x1 load) 350mW＋350mW (at 32Ω x2 load) - Supported impedance: 16 - 600Ω |
| Clock in | BNC port (Gold plated) - Input frequency: 10MHz - Input impedance: 50Ω - Input level: Rectangle: Corresponding to TTL level |
| Up conversion | x8, x4, x2, OFF (Selectable) |
| Digital filter | - DSD cut-off frequency: 50kHz, 150kHz (Selectable) - PCM digital filter: FIR sharp, FIR slow, short delay/sharp, short delay/slow (Selectable) |
| General | |
| Compatibility impedance | 8Ω to 600Ω |
| Power Consumption | 16W |
| Dimensions (H x W x D) | 81.2 x 290 x 248mm |
| Weight | 4.2kg |
| Color | Black - Silver |
- Bảo hành: 12 tháng.
