Audioengine D2 Wireless DAC wireless audio converter gray

Audioengine D2 Wireless DAC wireless audio converter gray.

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

D2 USB.
The D2 uses 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. USB power goes through two stages of regulation to ensure high stability and a low noise level.

D2 DAC.
The D2 receiver uses the PCM1792 digital-to-analog converter, widely known for its low noise and high fidelity. Due to the high signal-to-noise specification of the PCM1792 and the additional advantage of triple redundant power source conversion and filtering, the D2 presents an impressively low noise level and low distortion.

I2C volume control.
The D2 includes a separate wireless channel for transmitting volume information from the transmitter's volume control to the analog section of the receiver. This means the volume information never affects the digital audio stream.

D2 and LAN.
The D2 system divides the band from 2405 MHz to 2477 MHz into 37 separate channels with a width of 2 MHz. Channels numbered 2 through 38 inclusive are used for system operation. The system scans the spectrum and selects two channels 18 channels (or 36 MHz) apart and transmits 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 loss of audio. In this way the D2 not only preserves its own audio integrity, but also coexists well with other LAN devices.

Specifications:

DAC type: Dual Mode USB and optical (SPDIF) wireless DAC
Inputs: USB/optical (SPDIF).
Outputs: RCA Stereo/optical (SPDIF)
Optical receiver: AK4117.
USB controller: TI1020B.
Full-scale output: 2.0 V RMS
Output impedance: 100 ohms
Power source:
Transmitter: USB 5V or included external power adapter.
Receiver: Included external power adapter.
Power requirements:
Transmitter: 270mA, 5V.
Receiver: 300mA, 5V.
USB power filtering: 3-stage redundant regulation.
SNR: (DC to 20 kHz) > 115 dB.
THD+N: (1kHz FS 96kS/s) <0.0015%.
Crosstalk: <-85db.
Frequency response: 10Hz-30KHz (+/- 0.5dB).
Input bit depth: 24 bits (upsampling).
Input data rate:
96kHz – native playback.
44.1kHz, 48kHz, 188.2kHz, 192kHz – resampled to 96kHz for playback.
USB device class: type 1.1 or newer.
Wireless range (typical): >100 feet.
Latency: <20ms.
Supported receivers: Up to 3.
Product dimensions: 4.75×5.5×1″.
Shipping box dimensions: 15x9x5″.
Operating environment:
Operating temperature: 32 to 95 degrees F.
Storage temperature: -4 to 113 degrees F.
Relative humidity: 5% to 95% non-condensing.
Color: Chrome.
Used product.
The auction item is the receiver only.
No user manual.

Package includes:

1 x Audioengine D2 Wireless DAC wireless audio converter receiver gray.

Used product.
The item has been checked and tested, fully working, practically like new.
No packaging.
No manual.