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Page K-3
X-Rack E Series EQ Module
K.3 Performance Specification
The following pages contain audio performance specification figures for the X-Rack E Series EQ Module.
N
o other Solid State Logic products are covered by this document and the performance of other Solid State
L
ogic products can not be inferred from the data contained herein.
K
.3.1 Measurement Conditions
F
or each set of figures on the following pages, the specific unit and test setup will be stated at the
beginning of that section. Any changes to the specified setup for any particular figure(s) will be detailed
b
eside the figures to which that difference applies.
K.3.2 Measurement References
Unless otherwise specified the references used in this specification are as follows:
• Reference frequency: 1kHz
• Reference level: 0dBu, where 0dBu ≈ 0.775V into any load
• Source impedance of Test Set: 50Ω
• Input impedance of Test Set: 100kΩ
• All unweighted measurements are specified as 22Hz to 22kHz band limited RMS and are expressed in
units of dBu
• All distortion measurements are specified with a 36dB/Octave low pass filter at 80kHz and are
expressed as a percentage
• The onset of clipping (for headroom measurements) should be taken as 1% THD
• Unless otherwise quoted all figures have a tolerance of ±0.5dB or 5%
• All measurements are made with the operating level switch set for +4dBu
K.3.3 Performance
Signal applied to Input and measured at Output. EQ switched In. All EQ controls set centre as appropriate.
THD + N < 0.003% at +20dBu 1kHz
< 0.003% at +20dBu 10kHz
Frequency Response ±0.5dB from 20Hz to 20kHz
–6dB at 100kHz
Output Headroom > +26dBu at onset of clipping
Noise < –80dBu (+4dBu operating level)
< –92dBu (–10dBV operating level)