Appendix B - Analogue Specification; Audio Performance - Solid State Logic Fusion User Manual

Appendix B - Analogue Specification

Audio Performance

Default test conditions (unless otherwise stated):
Source impedance of Test Set: 50Ω
-
Input impedance of Test Set: 100kΩ
-
Reference frequency: 1kHz
-
- Reference level: 0dBu
All unweighted measurements are specified as 22Hz to 22kHz band limited RMS and are expressed in units of dBu.
-
The onset of clipping (for headroom measurements) should be taken as 1% THD.
-
Measurements taken with Input and Output trim at center position.
-
All levels are intended balanced.
-
Unless otherwise quoted all figures have a tolerance of ±0.5dB or 5%.
Measurement
Input Impedance
Output Impedance
Max Input Level
Max Output Level
Frequency Response
THD+Noise
CMRR
Noise
Fusion User Guide
Conditions
1% THD
1% THD
All circuits off
20Hz to 20kHz
-
-3dB low rolloff
-
-3dB high rolloff
-
All circuits off
+20dBu, 1kHz (filter 22Hz to 22kHz)
-
Bypass
+20dBu, 1kHz (filter 22Hz to 22kHz)
-
Vintage Drive
Indicator Off
-
Indicator Green
-
Indicator Orange
-
Indicator Red
-
20Hz
-
1kHz
-
Analyser filters/BW: 22Hz to 20kHz (AES17).
All circuits off
-
Bypass
-
- Vintage Drive, mid Drive, mid Density
Appendix B
Value
10kΩ
75Ω
27.5 dBu
27.5 dBu
±0.05dB
-
< 5Hz
-
> 180kHz
-
< 0.005%, 0.0025% typical
-
0.0005% typical
-
< 0.2% typical
-
0.2% to 0.5% typical
-
0.5% to 2% typical
-
> 2% typical
-
> 78dB, 85dB typical
-
> 78dB, 88dB typical
-
< -86dBu, -91dBu typical
-
-94dBu typical
-
- -75dBu typical
21