Accuphase DAC-50 Option Board

Accuphase DAC-50 Option Board

Name: Accuphase DAC-50 Option Board
Brand: Accuphase
SKU: ACCDAC50
Availability: InStock

Product variants

Convert digital signals into high-quality analog signals

The DAC-50 is an optional digital input board that supports a broad range of digital sound sources and is equipped with a high-precision MDS type D/A converter for optimal sound quality. The converter uses AK4490EQ chips from Asahi Kasei Microdevices in a double parallel configuration per channel. Installing the board in a slot on the rear panel of a supported Accuphase component provides direct input capability for signals from digital components for high-grade playback.

Availability

Specifications

USB:

Type: USB 2.0 High Speed （480Mbps） compliant

Sampling frequency DSD: 2.8224MHz, 5.6448MHz, 11.2896MHz(1bit)*11.2896MHz(ASIO only)

Sampling frequency PCM: 32kHz～384kHz, 32bit

Optical:

Type: JEITA CP-1212 compliant

Sampling frequency: 32kHz～96kHz, 24bit

Coaxial:

Type: IEC 60958/AES-3 compliant

Sampling frequency: 32kHz～192kHz, 24bit

Three types of inputs are provided: USB Type B, Optical, and Coaxial. The USB input handles signals up to 11.2 MHz / 1-bit [DSD] and 384 kHz / 32-bit [PCM], the coaxial input supports up to 192 kHz / 24-bit and the optical input up to 96 kHz / 24-bit. If multiple input signals are supplied at the same time, the unit automatically locks onto a signal when "Option 1" is selected, using the following priority sequence: COAXIAL → OPTICAL → USB. To exclude a signal from being selected, either disconnect the cable or turn power of the respective equipment off.

Who is this for?

The Accuphase DAC-50 Option Board is designed for Accuphase owners who want to add high-quality digital conversion directly into a compatible integrated amplifier or preamplifier. It suits listeners who value system simplicity and prefer an elegant, fully integrated solution rather than adding a separate standalone DAC.

This option board is ideal for users building or refining a modern digital system around streaming transports, CD players, or computer audio sources. It provides a meaningful step up in clarity, resolution, and musical flow compared to typical onboard or entry-level digital inputs, making it a strong upgrade for revealing HiFi systems.

The DAC-50 is particularly well suited to small to medium-sized listening rooms where a clean, minimal system layout is preferred. It integrates seamlessly within the Accuphase ecosystem, maintaining the brand’s signature smooth, natural presentation while enhancing detail and spatial accuracy.