Technical Specifications; Troubleshooting - Cambridge Audio azur 851D User Manual

Technical specifications

All measurements are for 24-bit signals via the digital inputs so as not
to be source material limited unless stated.
D/A converters Dual Analog Devices
AD1955 24-bit DACs
Digital filter Analog Devices Black Fin
ADSP-BF532 32-bit DSP
performing 2nd Generation ATF2
up-sampling to 24-bit 384kHz
Linear, Minimum, Steep or Phase
modes.
Analog filter 2 Pole Fully Differential
Linear Phase Bessel filter
Digital Input 1 and 2 S/PDIF 75 ohms or TOSLink optical
Digital Input 3 and 4 TOSLink optical
BNC Co-axial 75 ohms
Digital Input 5
Digital Input 6 XLR balanced 110 ohms per phase
USB Audio Input USB Type B conforming to Audio profile
1.0 or USB Audio profile 2.0 (user
selectable)
Compatibility USB 1.0:
24-bit 44.1kHz, 48kHz, 96kHz
USB 2.0:
16/24-bit 44.1kHz, 48kHz, 88.2kHz,
96kHz, 176.4kHz, 192kHz
Toslink:
16/24-bit 32-192kHz
BNC, S/PDIF and AES/EBU:
16/24-bit 32-192kHz
Line level / balanced output
Frequency response 20Hz to 20kHz (+/-0.1dB)
THD @ 1Khz 0dBFs < 0.0004%
THD @ 1Khz -10dBFs < 0.0004%
THD @ 20Khz 0dBFs < 0.0007%
IMD (19/20kHz) 0dBFs < 0.0002%
Linearity @ -90dBFs +/- 0.2dB
Linearity @ -120dBF +/- 0.4dB
Stop-band rejection > 120dB
(>24kHz)
S/N ratio, A weighted > 113dB
Total correlated jitter < 60pS for all digital inputs and USB
2.0
< 180pS for USB 1.0
Crosstalk @1kHz < -130dB
Crosstalk @20kHz < -114dB
Output impedance < 50 ohms
0dB Fs Output 2.2Vrms (2.2Vrms each phase for the
balanced output)
Headphones
Connector 1 x ¼"/6.35mm Headphone output
Compatibility 12 - 600 ohms
Frequency response 20Hz to 20kHz (+/-0.1dB)
THD @ 1Khz 0dBFs < 0.0007%
THD @ 1Khz -10dBFs < 0.0019%
THD @ 20Khz 0dBFs < 0.0009%
(Measurements taken into a 32 ohm load)
Dimensions - H x W x D 115 x 430 x 360 mm
(4.5 x 16.9 x 14.7")
Max power consumption 40W
Idle consumption 8W approx
Standby power consumption <0.5W
Weight 7.5kg (16.5lbs)
azur 851D
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