Integrated Amplifier TEAC AI-503
- The AI-503 is an integrated amp and USB DAC that supports inputs up to 11.2MHz DSD and 384kHz/32-bit PCM. The DAC/preamp, which is the heart of the unit, follows the same design concept of our UD-503 and adopts a dual-mono circuit design that is fully balanced. Separate VERITA AK4490 D/A converters - made by Asahi Kasei Microdevices Corporation - are used for the left and right channels. In addition to a USB digital input (for Windows/Mac computers), optical/coaxial digital input and RCA analog input, we have also enabled high-resolution wireless audio listening by including a LDAC-compatible Bluetooth receiver. Furthermore, with a combined 3.5mm optical digital/stereo mini jack on the front panel, the unit supports wired, as well as wireless, input from DAPs.
Features
- DAC with a dual-mono configuration that supports resolutions up to 11.2MHz DSD and 384kHz/32bit PCM.
- Separate VERITA AK4490 D/A converters made by Asahi Kasei Microdevices Corporation used on left and right channels.
- Bluetooth receiver that supports LDAC/Qualcomm aptXTM (as well as AAC and SBC).
- Filter type can be switched, choosing from 2 DSD digital filters, as well as 4 PCM filters and off mode.
- Two built-in high-precision dedicated clocks for 44.1kHz and 48kHz signals and their multiples (enabled during USB asynchronous transmission).
- TEAC-QVCS high-precision volume control circuit with fully-balanced structure.
- High-output Class-D power amplifier (made by ICEpower a/s).
- Headphone amp with discrete, push-pull circuit and a maximum output of 280mW+280mW (TEAC-HCLD circuit).
- Ground connection supported by 3.5mm 4-pole stereo headphone jack (combined with regular 3.5mm stereo mini type).
- High-capacity toroidal-core power transformers.
- Pair of RCA analog input jacks.
- Volume-controlled pair of RCA analog output (pre-out) jacks.
- USB/coaxial/optical digital inputs (one each on back panel).
- Combined round optical digital/3.5mm stereo mini jack (on front panel).
- Dual analog level meters with adjustable brightness.
- Low-energy consumption design and automatic power-saving function.
- All-metal enclosure provides both vibration resistance and a stylish appearance in an A4-page-sized footprint that can fit on a desk.
- Dedicated remote control included.
- IEC inlet.
- Compliant with RoHS.
Specifications
| Model | AI-503 |
| Amplifier | |
| Maximum Output Power | 90W + 90W (4 ohms, 20Hz to 20kHz) 45W + 45W (8 ohms, 20Hz to 20kHz) |
| Rated Output Power | 60W + 60W (4 ohms, 20Hz to 20kHz) 30W + 30W (8 ohms, 20Hz to 20kHz) |
| Supported Impedance | 4 ohms to 8 ohms |
| Total harmonic distortion | 0.05% (1kHz, 4 ohms, 55W) |
| S/N ratio (input short) | |
| Line In | 100dB (IHF-A) |
| Frequency range | 10Hz to 60kHz (−3dB) |
| Digital audio inputs | |
| Coaxial | RCA jack x 1 (0.5Vp-p/75ohm) |
| Sampling frequency: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz | |
| Bit Rates : 16/24-bits | |
| Optical | Optical digital connectors x 2 (−24.0 to −14.5dBm peak) |
| Sampling Frequency: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kH | |
| Bit Rates:16/24-bits | |
| USB | Type B connector x 1 (USB 2.0 compliant) |
| Sampling Frequency: 32 kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz | |
| Bit Rates: 16/24-bits | |
| Analog Audio Inputs | |
| RCA | RCA jacks x 2pairs |
| Nominal input level | -10dBV |
| Maximum input level | +6dBV |
| Headphones Output | |
| Connector | Standard 6.3mm stereo jack |
| Maximum output level | 50mW + 50mW or more (32 ohms, THD+N 0.1%) |
| Power supply | AC120V, 60Hz |
| Power Consumption | 55W |
| Overall Dimensions | 290(W) x 81.2(H) x 264(D) mm, 11.4-inch(W) x 3.2-inch (H) x 10.4-inch (D) |
| Net Weight | 4.0kg |
| Operating Temerature | +5˚C to +35˚C |
| Operating humidity range | 5% to 85% (no condensation) |
| Storage Temerature | -20˚C to +55˚C |
| Accessories | AC Cable, AC Plug Adapter (3P-2P), Remote Control, AAA Batteries (x2), Owner's Manual, Warranty Card |
| Accessories | Power cord, remote control (RC-1313), AAA batteries for remote control×2, User Manual (including Warranty) |
| Audio performance | |
| Frequency response | 2Hz to 100kHz (-5dB) |
| S/N ratio | 95dB(LINE Input, IHF-A/LPF 20kHz 1kHz 2V Input) |
| Distortion | 0.01%(1kHz, 8 ohms, 1W) |
- Bảo hành: 12 tháng.
