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TECHNICAL SPECIFICATIONS
DAC Wolfson WM8742
Frequency Response (100KΩ load)
Low data rate 44.1/48KHz Filter 2 = 10Hz -0.05dB to 20KHz -0.1dB
Medium data rate 88.2/96KHz Filter 2 = 10Hz -0.05dB to 30KHz -1dB
High data rate 176.4/192KHz Filter 2 = 10Hz -0.05dB to 41KHz -1dB
Total Harmonic Distortion (24bit 96KHz) = 0.006% @ 1KHz
Signal To Noise Ratio -105dB
(relative to maximum output level with a 100Hz to 22KHz bandwidth)
Maximum output level = 2.175V into 100KΩ load
Bit resolution 16 to 24bit (USB is limited to 16bit)
Supported data rates = 32, 44.1, 48, 88.2, 96, 176.4, 192KHz
Digital inputs
USB Isolated (16bit 32/44.1/48KHz)
Input 1 Optical/Toslink (24bit 32/44.1/48/88.2/96/176.4/192KHz)
Input 2 Optical /Toslink (24bit 32/44.1/48/88.2/96/176.4/192KHz)
Input 3 Isolated 75Ω Co-axial (24bit 32/44.1/48/88.2/96/176.4/192KHz)
Input 4 Isolated 75Ω Co-axial (24bit32/44.1/48/88.2/96/176.4/192KHz)
Digital output (via receiver & PLL) - SPDIF
Optical Toslink Isolated 75Ω
Co-axial/SPDIF
Power 230v/115v/7.6W
Dimensions in cm W 21.5 x D 27 x H 8
Weight 4.0 Kg
96kHz & 192kHz OPERATION
The Rega DAC can operate at 192kHz when used with a capable soundcard
connected via the Co-axial or optical input. Due to the limitations of some
operating systems the exact configuration and set-up can vary from one
PC/Laptop to another.
If you are constructing a high sample rate music server, we recommend that
the frequency response and THD of the final unit complete with the DAC,
soundcard and player is checked using high frequency test tones with suitable
measuring equipment to ascertain the playback chain is capable of true 96 &
192K operation.
This test will require specialist test tones and equipment. Loudspeakers should
not be used as certain frequencies could potentially damage the drive units.
Please note: Some PC/Laptop or disc players are only capable of a maximum
sample rate of 48kHz. The USB will only work at 32/44.1/48kHz 16-bit even if
you have a 96kHz & 192kHz playback configuration.
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