TAEC has always conquered the audio market with high cost performance and became the love of petty bourgeois enthusiasts. If you are planning to buy a compact, feature-rich integrated amplifier? Then TEAC is the AI-503 that won the Desktop Audio Award and the Golden Award in the summer VGP 2017 Summer Awards. It is definitely worth your attention.
As a successor to the AI-501, the AI-503 has a large internal material, with a USB DAC and VERITA AK4490 DAC chip manufactured by AKM (Asahi Kasei Microdevices). Supports up to 32bit/384kHz PCM and native DSD 11.2MHz high resolution music file input via asynchronous USB terminal input. In addition, the unit can also provide a variety of digital filtering modes (four PCM, two DSD), allowing you to freely switch the desired listening.
The DAC/preamplifier is the heart of the AI-503 and follows the design philosophy of the UD-503 with a fully balanced dual mono circuit design. Built-in high-capacity toroidal transformer for powering compact bookshelf speakers for desktops and large floor-standing speakers. Also equipped with the exclusive development of TEAC-QVCS (high-precision electronic volume control) to control the circuit, creating a realistic sound field and high signal-to-noise ratio and excellent sense of space. The post-amplifier uses ICEpower's power module to provide up to 40W × 2 ch (4Ω) of amplified output capability.
The AI-503 supports USB digital input, fiber/coaxial digital input and RCA analog input. It also supports Bluetooth receiving functions such as LDAC, APTX, AAC, SBC, etc., to achieve high-resolution wireless audio transmission. In addition, DAPs wired input is achieved through the 3.5mm fiber optic digital/stereo mini jack on the front panel. As for the output terminals, it is a set of RCA analog output and a set of 3.5mm headphone outputs.
In addition to being able to drive the speakers, the AI-503 also has an ear extension function. High-impedance headphones can be easily pushed with a separate TEAC-HCLD circuit with push-pull wiring. The 3.5mm headphone jack also supports 4-pole split ground connections for excellent channel separation. Two-stage high/low gain switching buttons for everything from low-impedance in-ear monitors to high-impedance (600Ω) in-ear headphones.
TEAC AI-503 is rich in materials and features. The exterior design is also highly sophisticated, with a matte-finished metal panel. The lever-type power switch, large aluminum volume knob and retro and refined head make the overall device feel and playability greatly increased. This high-quality integrated amplifier, both inside and out, allows you to enjoy high-quality music with minimal budget.
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