Audioengine : D2 Audioengine

The D2 24-bit Wireless DAC allows you to stream wireless HD audio from your computer to any music system.

หมายเลขสินค้า : D2

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The D2 24-bit Wireless DAC allows you to stream wireless HD audio from your computer to any music system.

สำหรับเจ้าตัวนี้ถ้าเรียกให้เข้าใจง่ายๆมันก็คือ อุปกรณ์ DAC Wireless หรือ DAC ไร้สายนั่นเองครับ ทำหน้าที่แปลงสัญญาณดิจิตอลให้เป็นอะนาล็อก สตรีมมิ่งไฟล์เพลงจากเครื่องคอมพิวเตอร์ไปยังชุดลำโพง Active หรือชุดเครื่องเสียงบ้าน Integrated Amp ผ่านสัญญาณ Wireless ไร้สาย และที่สำคัญรองรับไฟล์เพลงคุณภาพสูง 24/96kHz

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.

Features

Wireless Bit-Perfect 24/96 Digital-To-Analog Converter
USB-To-S/PDIF Converter
Precision Receiver Re-Clocking For Low Jitter
USB And Optical Inputs
Optical And Analog Outputs
Based On Burr-Brown PCM1792 DAC

Specifications

DAC type: Dual Mode USB and Optical (SPDIF) wireless DAC
Inputs: USB/Optical (SPDIF)
Outputs: RCA Stereo/Optical (SPDIF)
D/A converter: PCM1792A
Optical receiver: AK4117
USB controller: TI1020B
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
SNR: (DC to 20 kHz) >115dB
THD+N: (1kHz FS 96kS/s) <0.0015% Crosstalk <-85db
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): >100ft
Latency: <20ms
Receivers supported: Up to 3
Product dimensions: 4.75×5.5×1″
Shipping weight: 4lbs (2.0kg)
Shipping box dimensions: 15x9x5″