D2 24-bit Wireless DAC


UPC: 819955250015
  • General specifications

    DAC type
    Dual Mode USB and Optical (SPDIF) wireless DAC

    USB/Optical (SPDIF)

    RCA Stereo/Optical (SPDIF)

    D/A converter

    Optical receiver

    USB controller

    Full-scale output
    2.0V RMS

    Output impedance
    100 ohms

    Power source
    Sender: USB 5V or included external supply
    Receiver: Included external supply

    Power requirements
    Sender: 270mA, 5V
    Receiver: 300mA, 5V

    USB power filtering
    3-stage redundant regulation

    (DC to 20 kHz) >115dB

    (1kHz FS 96kS/s) <0.0015%


    Frequency response
    10Hz-30KHz (+/- 0.5dB)

    Input bit depth
    24 bit (upsampled)

    Input data rate
    96kHz – native playback
    44.1kHz, 48kHz, 188.2kHz, 192kHz – re-sampled to 96kHz for playback

    USB device class
    type 1.1 or above

    Wireless range (typical)


    Receivers supported
    Up to 3

    Product dimensions

    Shipping weight
    4lbs (2.0kg)

    Shipping box dimensions

    Operating Temperature: 32 to 95 degrees F
    Non-operating Temp: -4 to 113 degrees F
    Relative Humidity: 5% to 95% non-condensing

    Included accessories (D2 Sender)
    USB cable, 2ft
    Power adapter with detachable AC cord
    Microfiber bag

    Included accessories (D2 Receiver)
    RCA cable, 6.5ft
    Power adapter with detachable AC cord
    Microfiber bag
    Setup Guide

    Advantages of wireless
    The D2 wireless system transmits bit-perfect PCM-stereo simultaneously to up to 3 receivers. This PCM stream is routed from/to the various components of the system (optical transmitter/receiver, USB controller, and DAC) via the I2S bus, which maintains data integrity throughout the system. Because the various source/sink components are segregated by the wireless subsystem, various anomalies which plague many wired DACs such as jitter, grounding, and induced cable noise are greatly reduced. In addition, the D2 allows the user to physically isolate a potentially noisy computer from the sensitive audio components in your system.

    D2 USB
    The D2 utilizes the TI1020B USB controller chip, widely recognized as the industry standard for higher-end USB audio products. The Sender can be powered directly from the USB bus or from the included external power adapter. The USB power is passed through two stages of regulation to ensure high stability and low noise.

    D2 DAC
    The D2 Receiver utilizes the PCM1792 DAC, widely known for it’s low noise and high fidelity. Due to the PCM1792’s high signal-to-noise specs and the added benefit of triple redundancy power source conversion and filtering, the D2 presents impressive low noise and low distortion characteristics.

    I2C Volume Control
    The D2 incorporates a separate-path wireless channel to transmit volume information from the Sender volume control to the analog section of the Receiver. This means that the volume information never affects the digital audio stream.

    D2 and LAN
    The D2 system divides the band between 2405 MHz and 2477 MHz into 37 discrete, 2 MHz wide channels. Channels numbered 2 through 38 inclusive are used for system operation. The system scans the spectrum and selects two channels that are 18 channels (or 36 mHz) apart and transmits with 50% of the time on one channel (for example channel 2) and 50% on the other channel (for example channel 20). The system stays on these selected channels until the error detection rate reaches a predetermined level indicating deteriorating RF conditions. The system will then select a cleaner channel for transmission and move there without any drop in audio. In this way the D2 not only maintains it’s own audio integrity, but co-exists nicely with other LAN devices.