K.3
K.3.1
K.3.2
K.3.3
Performance Specification
The following pages contain audio performance specification figures for the
Measurement Conditions
For 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 beside the figures to which that difference applies.
Measurement References |
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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
Performance |
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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 |
Frequency Response | < 0.003% at +20dBu 10kHz |
±0.5dB from 20Hz to 20kHz | |
Output Headroom | |
> +26dBu at onset of clipping | |
Noise | < |
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