The Multitone software should get its own sub-forum ![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
This is me messing around trying to figure out the software. I would not take these measurements as indicative of the unit's performance.
[voltage calibration]
3.446 volt(rms) FS
input 3,4 (1/4" unbalanced) 0dB gain, +4dBu
output 1,2 (XLR) 0dB
[distortion calibration 131k FFT]
L-ch -103.0dB THD+N @ -5.8 (play gain) = -5.9dBFS input
R-ch -103.5dB THD+N @ -5.8 (play gain) = -5.9dBFS input
(R-ch Fluke 87III connected via split XLR to BNC to Bananna)
I found the true minimums, but they were so close I settled on a single value to make repeat tests easier.
archiv.rme-audio.de
xlr out
Dynamic range (DR): 115 dB RMS unweighted, 118 dBA
Frequency response @ 96 kHz, -0.5 dB: 0 Hz – 45 kHz
THD: - 106 dB, 0.0005 % • THD+N: -102 dB, 0.0008 %
Channel separation: > 110 dB
Output: XLR balanced
Output impedance: 300 Ohm balanced, 150 Ohm unbalanced
Output level @ 0 dBFS: Balanced +19 dBu, unbalanced +13 dBu
DC @ 0 dBFS: 6.35mm 4.8 V, 3.5mm 2.4 V, XLR bal. 9.6 V
1/4" in
Signal to Noise ratio (SNR): 114 dB RMS unweighted, 117 dBA
Frequency response @ 96 kHz, -0.5 dB: < 3 Hz – 45.8 kHz
With PAD active : -0.1 dB 8 Hz, -0.5 dB < 4 Hz, -1 dB < 3 Hz
THD: < -110 dB, < 0.00032 %
THD+N: < -104 dB, < 0.00063 %
THD @ 30 dB Gain: < -107 dB, < 0.0004 %
THD+N @ 30 dB Gain: < -100 dB, < 0.001 %
Channel separation: > 110 dB
Gain range: -11 dB up to +65 dB
Maximum input level XLR, Gain 0 dB: +8 dBu, PAD +19 dBu
Maximum input level XLR, Gain 65 dB: -57 dBu, PAD -46 dBu
This is me messing around trying to figure out the software. I would not take these measurements as indicative of the unit's performance.
[voltage calibration]
3.446 volt(rms) FS
input 3,4 (1/4" unbalanced) 0dB gain, +4dBu
output 1,2 (XLR) 0dB
[distortion calibration 131k FFT]
L-ch -103.0dB THD+N @ -5.8 (play gain) = -5.9dBFS input
R-ch -103.5dB THD+N @ -5.8 (play gain) = -5.9dBFS input
(R-ch Fluke 87III connected via split XLR to BNC to Bananna)
I found the true minimums, but they were so close I settled on a single value to make repeat tests easier.
RME: Babyface Pro
RME Babyface Pro: 24-Channel, 24 Bit / 192 kHz Bus-powered USB Audio Interface
xlr out
Dynamic range (DR): 115 dB RMS unweighted, 118 dBA
Frequency response @ 96 kHz, -0.5 dB: 0 Hz – 45 kHz
THD: - 106 dB, 0.0005 % • THD+N: -102 dB, 0.0008 %
Channel separation: > 110 dB
Output: XLR balanced
Output impedance: 300 Ohm balanced, 150 Ohm unbalanced
Output level @ 0 dBFS: Balanced +19 dBu, unbalanced +13 dBu
DC @ 0 dBFS: 6.35mm 4.8 V, 3.5mm 2.4 V, XLR bal. 9.6 V
1/4" in
Signal to Noise ratio (SNR): 114 dB RMS unweighted, 117 dBA
Frequency response @ 96 kHz, -0.5 dB: < 3 Hz – 45.8 kHz
With PAD active : -0.1 dB 8 Hz, -0.5 dB < 4 Hz, -1 dB < 3 Hz
THD: < -110 dB, < 0.00032 %
THD+N: < -104 dB, < 0.00063 %
THD @ 30 dB Gain: < -107 dB, < 0.0004 %
THD+N @ 30 dB Gain: < -100 dB, < 0.001 %
Channel separation: > 110 dB
Gain range: -11 dB up to +65 dB
Maximum input level XLR, Gain 0 dB: +8 dBu, PAD +19 dBu
Maximum input level XLR, Gain 65 dB: -57 dBu, PAD -46 dBu
Attachments
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RME_L_THD+N_low point.png62.8 KB · Views: 109
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RME_L_THD+N_RMS Level.png78.3 KB · Views: 110
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RME_R_THD+N_low point.png66 KB · Views: 102
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RME_R_THD+N_RMS Level.png79.5 KB · Views: 99
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Lout to 3in - 1MFFT.JPG288.2 KB · Views: 105
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Lout to 4in - 1MFFT.JPG300.6 KB · Views: 104
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Rout to 3in - 1MFFT.JPG292.5 KB · Views: 98
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Rout to 4in - 1MFFT.JPG295.8 KB · Views: 105