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A-50DA (K)*


  Audiophile Pure Audio Full Amplifier/Converter “

SKU: a-50da(k)* Category:


Experience the high-fidelity amplification created by the A-50DA-K/-S Class D integrated amplifier featuring ESS SABRE32 Ultra DAC, Separated Construction, and aluminium front panel. The USB-DAC featuring asynchronous transfer supports up to 384 kHz LPCM and 11.2 MHz DSD files, letting you enjoy extremely precise reproduction of Hi-Res Audio sources.

Direct Energy Amplifier

Pioneer’s “Direct Energy” concept is pursued to the utmost, with optimised power supply/output circuit blocks, as well as parts layout to reproduce clearer sound with reduced distortion. The resulting excellent signal transfer and high S/N ratio bring out the best musical reproduction from the integrated amplifier.

Isolated Power Supply

The windings for the power amplifier, pre-amplifier, and controls are each separated inside the power transformer to cut out noise interference. This allows even more realistic amplification of the audio signals.


High-performance 8ch ESS SABRE32 Ultra DAC is adopted on the A-50DA-K/-S. It features low noise and high S/N ratio that enable 4ch parallel drive for each channel at maximum 384 kHz. The result is clear and open, yet solid sound with superior audio quality.

384 kHz/32-bit USB-DAC for Asynchronous Transfer

The integrated amplifier allows direct USB connection with a PC. What’s more, the signal transfer is done with USB asynchronous transfer mode, which controls the transfer process by using its high-accuracy clock, ensuring high-quality sound reproduction. This eliminates jitter, reproducing master quality sound with extremely precise audio signals. In addition to 11.2 MHz DSD, the unit supports LPCM with sampling frequency of 44.1, 48, 88.2, 96, 176.4, 192, 352.8, and 384 kHz, and quantization bit rate of 16, 24, and 32 bits.

Gold-Plated Inputs, Large Machine-Cut Speaker Terminals, and AC Inlet with Polarity Indication

High-grade parts are used for the integrated amplifier’s terminals to provide a stable connection for pure sound delivery. The A-50DA-K/-S features machine-cut gold-plated brass speaker terminals, exclusive gold-plated input terminals, and an AC inlet with polarity indication. The durable brass speaker terminals are set apart to easily accommodate thick high-grade cables. The speaker terminal has a large resin base for additional safety.

Aluminium Front Panels and Knobs

Extra-thick 3.5 mm aluminium is used for the front panel, providing rigidity for a stable performance. The aluminium volume knob offers a solid, high-grade feel and style. The Input Selector, Balance, and Bass/Treble knobs are also made of aluminium.




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