M-Audio ProFire Lightbridge User Guide
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18
Specifications
12
D/A Converters
44.1, 48, 88.2, 96kHz
Supported Bit Rates
16-bit, 24-bit
Digital Inputs
4 optical Lightpipe
stereo coaxial S/PDIF
Digital Audio Outputs
4 optical Lightpipe
stereo coaxial S/PDIF
Line Outputs
1/4” TRS balanced/unbalanced
Output Impedance
300 Ohm balanced/150 Ohm unbalanced
Maximum Output Level
+10.2 dBu (2.5 Vrms) balanced
+2.0 dBV (1.26 Vrms), unbalanced
Channel-to-Channel Crosstalk
< -110 dB @ 1kHz
SNR
-109 dB, A-weighted
Dynamic Range
109 dB, A-weighted
THD+N
0.00127 % (-98 dB) @ -1 dBFS, 1 kHz
Frequency Response
20 Hz to 20 kHz, +/- 0.1 dB @ 48 kHz sample rate
20 Hz to 40 kHz, +/- 0.2 dB @ 96 kHz sample rate
Headphone Output
Maximum Output
-3.0 dBV (1.71 Vrms) into 32 ohms
Working Range
32 to 600 ohms
Impedance
75 Ohm
Crosstalk
< -85 dB
THD+N
0.011% (-79 dB) @ -1 dBFS, 1 kHz
SNR
-108 dB, A-weighted
Dynamic Range
108 dB, A-weighted
Frequency Response
20 Hz to 20 kHz, +/- 0.1 dB @ 48 kHz sample rate
20 Hz to 40 kHz, +/- 0.2 dB @ 96 kHz sample rate
48 kHz sampling rate unless otherwise stated