Solid State Logic SiX - Appendix B - Performance Specification; Audio Performance; Superanalogue Channel Microphone Amplifier; Superanalogue Channel Line Input Amplifier

SiX User Guide
Appendix B
28
Appendix B - Performance Specication
Audio Performance
Default test conditions (unless otherwise stated):
- Source impedance of Test Set: 40 Ω
- Input impedance of Test Set: 200 kΩ
- Reference frequency: 1 kHz
- Reference level: 0 dBu where 0 dBu = 0.775 V into any load
- All unweighted measurements are specied as 22 Hz to 22 kHz band limited RMS and are expressed in units of dBu
- The onset of clipping (for headroom measurements) should be taken as 1% THD
- All distortion measurements are specied with a 36dB/Octave low pass lter at 20 kHz and are expressed as a percentage
- All levels are intended balanced
Unless otherwise quoted all gures have a tolerance of ±0.5 dB or 5%.
SuperAnalogue Channel Microphone Amplier
Measurement Conditions Value
Gain **dependant on potentiometer tolerances Variable from +6dB to +72dB**
Input Impedance 1.2kΩ
Max Input Level 1% THD 21 dBu
Output Headroom >+27dBu at onset of clipping
Frequency Response - 20Hz to 20kHz
- -3dB high rolloff
- +0.1/-0.3dB
- > 100kHz
THD+Noise (-20dBu applied, +30dB gain) @ 1kHz (lter 22Hz to 22kHz) - < 0.0015%
CMRR (-10dBu applied, +30dB gain) - > 80dB
Equivelant Input Noise (EIN) 150Ω termination, maximum gain - <-127.5dBu
- typically -129dBu
SuperAnalogue Channel Line Input Amplier
Measurement Conditions Value
Gain **dependant on potentiometer tolerances Variable from -3dB to +63dB**
Input Impedance 10kΩ
Hi-Z Input Impedance 1MΩ
Max Input Level 1% THD >+27dBu before clipping
Output Headroom >+27dBu at onset of clipping
Frequency Response - 20Hz to 20kHz
- -3dB high rolloff
+0.1/-0.3dB
> 100kHz
THD+Noise (-20dBu applied, +30dB gain) @ 1kHz (lter 22Hz to 22kHz) < 0.0015%
CMRR > 70dB
Equivelant Input Noise (EIN) 150Ω termination, maximum gain <-110dBu