AER Cubello, Руководство пользователя

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13
NOTES
Options configurable by internal jumpers (refer modification to
qualified personnel):
•
Deactivation of 48 V phantom power for mic input
DEFINITIONS
Rated conditions
•
Nominal input voltage at input under test
• master fully clockwise
• bass / treble / pan centered
• effects level fully anticlockwise
• gain of unused inputs fully anticlockwise
• gain of input under test adjusted to nominal output
voltage at line out. (This condition corresponds by design
to the rated output power.)
Nominal input voltage:
Standard condition for specifications, if not stated otherwise.
Minimum input voltage:
Input voltage required for nominal output with maximum gain
and volume settings.
Maximum input voltage:
Input voltage that does not cause distortion more than rated
THD+N, suitable control settings provided.
Nominal output voltage or power refer to rated conditions.
THD + N : Total harmonic dist noise, with input voltage
reduced by 10 dB after setting up rated conditions.
Signal / noise ratio:
Ratio of output voltage at rated conditions to output noise
voltage with zero input voltage.
Equivalent input noise voltage:
Noise voltage at output terminals divided by gain of amplifier.
Source voltage reduced to zero after setting up rated conditions.
Residual noise:
Output noise with minimal gain and volume settings.
General:
Signal voltages are RMS values. Test signal sine 1 kHz sine unless
stated otherwise. Noise measured from 20 Hz to 20 kHz. Noise
stated for a specific input implies that all other inputs are not
used. Sound pressure level (SPL) based on loudspeaker specifica-
tion by manufacturer. Switching-amplifier measurement filter
used for tests at loudspeaker output.
Specifications and appearance subject to change without
notice.
TD20221205-01_en (Cubello)