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Teac AI-503 | Integrated Amplifier + DAC


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Teac AI-503 | Integrated Amplifier and DAC

The AI-503 is an integrated amp and USB DAC that supports inputs up to 11.2 MHz DSD and 384 kHz/32 bits 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 3.5 mm optical digital/stereo mini jack on the front panel, the unit supports wired, as well as wireless, input from DAPs. The power amplifier uses a Class-D power amplifier (made by ICEpower a/s) that guarantees high resolution during the playback of delicate signals as well as high linearity at high volumes. This unit can power both compact bookshelf speakers (for desktop applications) and large floorstanding speakers. The pre-amp section uses a fully-balanced TEAC-QVCS high-precision volume control circuit with a 4-circuit construction. By maintaining detail levels at all resolutions, the AI-503 creates a very realistic soundstage, along with a high signal-to-noise ratio and excellent sense of space. By connecting an external power amplifier to the fitted pre-out jacks, you can upgrade performance and create an even more capable audio system. The headphone amp section uses a discrete TEAC-HCLD circuit, with a push-pull arrangement, allowing it to drive even high-impedance headphones with ease. The two-stage High/Low gain switch enables optimal volume setting for everything from low-impedance in-ear monitors to high-impedance (600 Ω) on-ear headphones. Furthermore, the inclusion of a 3.5mm headphone jack, one that supports a 4-pole separate ground connection, allows excellent channel separation, even when using balanced-type headphones or earphones. *Available in Black Only
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Teac AI-503 Integrated Amplifier and DAC Technical Data

Amplifier Maximum Output Power : 90 W + 90 W (4 ohms, 20 Hz to 20 kHz), 45 W + 45 W (8 ohms, 20 Hz to 20 kHz) Rated Output Power : 60 W + 60 W (4 ohms, 20 Hz to 20 kHz) 30 W + 30 W (8 ohms, 20 Hz to 20 kHz) Supported Impedance : 4 to 8 ohms Total harmonic distortion : 0.05% (1 kHz, 4 ohms, 55 W) S/N ratio (input short) Line in : 100 dB (IHF-A) Frequency range : 10 Hz to 60 kHz (−3 dB) Digital audio inputs Coaxial RCA jack x 1 (0.5 V p-p / 75 ohm) Sampling frequency : 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz - bit rates : 16/24-bits Optical Optical digital connectors x 2 (−24.0 to −14.5 dBm peak), sampling frequency : 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, bit rates 16/24-bits USB : Type B connector x 1 (USB 2.0 compliant), sampling frequency : 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, bit rates : 16/24-bits Analog audio inputs : RCA jacks 2 pairs Nominal input level : -10 dBV Maximum input level : +6 dBV Headphones output Connector : Standard 6.3mm stereo jack Maximum output level : 50 mW + 50 mW or more (32 ohms, THD+N 0.1%) Power supply : AC 120 V, 60 Hz Power Consumption : 55 W Overall Dimensions : W X H X D 290 X 81.2 X 264 mm (11.4 X 3.2 X 10.4") Net Weight : 4.0 kg Operating Temperature  : +5˚C to +35˚C Operating humidity range : 5% to 85% (no condensation) Storage Temperature : -20˚C to +55˚C Accessories : AC Cable, AC Plug Adapter (3P-2P), Remote Control, AAA Batteries (x2), Owner's Manual, Warranty Card Operating system requirements - Windows : XP (Professional x64 Edition not supported), Vista 7, 8, 10 Operating system requirements - Macintosh : Mac OS X Snow Leopard (10.6), OS X Lion (10.7), OS X Mountain Lion (10.8), OS X Mavericks (10.9), OS X Yosemite (10.10), OS X El Capitan (10.11.1), macOS Sierra (10.12)
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color Black, Silver
Brands Teac