Technische Daten Benchmark DAC3

Group Delay (Latency)

Delay – Digital Input to Analog Output (function of sample rate)

1.36 ms at 44.1 kHz

1.27 ms at 48 kHz

0.90 ms at 88.2 kHz

0.82 ms at 96 kHz

0.51 ms at 176.4 kHz

0.47 ms at 192 kHz

Digital Audio Inputs
Number of Digital Inputs (switch selected)	5 (1 USB, 2 Optical, 2 Coaxial)
Number of Channels	2
Input Sample Frequency Range	28 to 210 kHz (Coaxial Inputs) 28 to 96 kHz (Optical Inputs) 44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)
Maximum Input Word Length	24 bits
Digital Input Impedance	75 Ohms (Coaxial Inputs)
DC Blocking Capacitors on Digital Inputs	Yes (Coaxial Inputs)
Transient and Over-Voltage Protection on Digital Inputs	Yes (Coaxial Inputs)
Minimum Digital Input Level	250 mVpp (Coaxial Inputs)
Jitter Tolerance (With no Measurable Change in Performance)	>12.75 UI sine, 100 Hz to 3 kHz >1.5 UI sine at 20 kHz >1.5 UI sine at 40 kHz >1.5 UI sine at 80 kHz >1.5 UI sine at 90 kHz >0.25 UI sine above 160 kHz
Jitter Attenuation Method	Benchmark UltraLock3™ - all inputs

Balanced Analog Outputs
Number of Balanced Analog Outputs	2
Output Connector	Gold-Pin Neutrik™ male XLR
Output Impedance	60 Ohms (Attenuator off) 425 Ohms (Attenuator = 10 dB) 135 Ohms (Attenuator = 20 dB)
Analog Output Clip Point	+30 dBu
Factory Set Bypass Level (at 0 dBFS)	+24 dBu (Attenuator = 0 dB)
Output Level Range (at 0 dBFS) In ‘Variable’ Mode	Off to +27.5 dBu (Attenuator off) Off to +17.5 dBu (Attenuator = 10 dB) Off to +7.5 dBu (Attenuator = 20 dB)
Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)	< +/- 0.006 dB

Audio Performance
Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)
SNR – A-Weighted, 0 dBFS = +27 dBu	128 dB
SNR – Unweighted, 0 dBFS = +27 dBu	126 dB
THD+N, 1 kHz at 0 dBFS	-113 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at -1 dBFS	-114 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at –3 dBFS	-119 dBFS, -116 dB, 0.00016%
THD+N, 20 to 20 kHz test tone at –3 dBFS	-113 dBFS, -110 dB, 0.00032%
Frequency Response at Fs=192 kHz	+0 dB, -0.015 dB (20 to 20 kHz) -0.015 dB at 10 Hz -0.005 dB at 20 kHz -0.031 dB at 40 kHz -0.15 dB at 80 kHz
Frequency Response at Fs=48 kHz	+0 dB, -0.015 dB (20 to 20 kHz) -0.015 dB at 10 Hz -0.005 dB at 20 kHz
Crosstalk	-116 dB at 20 kHz -130 dB at 1 kHz -137 dB at 20 Hz
Maximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)	< -144 dB
Maximum Amplitude of Spurious Tones with 0 dBFS test signal	< -138 dB
Maximum Amplitude of Idle Tones	< -147 dB
Maximum Amplitude of AC line related Hum & Noise	< -133 dB
Inter-channel Differential Phase (Stereo Pair – any sample rate)	+/- 0.25 degrees at 20 kHz
Inter-channel Differential Phase (Between DAC3 Units Fs<110 kHz) Any sample rate.	+/- 0.25 degrees at 20 kHz
Maximum Lock Time after Fs change	6 ms
Soft Mute Ramp Up/Down Time	9.6 ms
Mute on Receive Error	Yes
Mute on Lock Error	Yes
Mute on Idle Channel	No
50/15 us De-Emphasis Enable	Automatic in Consumer Mode
De-Emphasis Method	Digital IIR
De-Emphasis Supported at	Fs = 32, 44.1, 48 kHz

AGB