Technology
The optical and coaxial input stage comprises a Crystal digital receiver. The receiver and PLL have their own dedicated power supplies. The DAC stages comprises a Burr Brown DAC, that are driven via a buffer stage, which ensures the integrity of the data being fed to the DAC IC’s.
The USB input stage is comprised of a bit perfect Amanero USB Audio 2.0 with asynchronous clocking. The USB input feeds the DAC through I2S interface, which ensures low jitter and perfect timing. The output amplifier employs a discrete differential, multiple feedback filter and output amplifier, with a high cut-off frequency for use with higher sample rates. We decided not to use a sample rate converter and process the data at the incoming sample rate which keeps the signal processing to a minimum. Jitter was minimized by synchronously clocking the digital data with our receiver PLL (removing any jitter from the input signal).
All the capacitors associated with the analogue signal path are audio grade bypassed with MMK polyester capacitors. The power supply utilizes a EI core transformer, fast rectifier diodes and again audio grade capacitors. Special attention being paid to the inter IC control signals ensures the control data noise is kept to a minimum.
Power on/off. When the power button is pressed the power led illuminates.
A rotary switch selects between the 8 available digital inputs.
Reviews
Technical Specifications:
INPUT
Digital input: 2 X gold-plated RCA 75 ohm
Digital input: 3 x TOSKINK/SPDIF
Digital input: 1 x XLR
Digital input: 1 x USB
OUTPUT
Line output signal: 1.0V RMS
RCA and Balanced XLR
Output impedance 75 ohm
Specifications
MEASUREMENTS
Depth: 29 cm / Width: 24 cm / Height: 9 cm
Weight: 4 kg
POWER
Power requirements: 220-240 VAC
Power consumption: < 10 watts
Main AC Power switch on front panel
Distortion: THD+N <0.003%
Channel separation: >110dB
Level linearity error: +- 0.05dB
Sample rates: 32 KHz – 200 KHz
Dynamic Range: >120 dB