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Calibrating the system
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In Calibration you can make adjustments using a number of
different signals, shown in the table below. Normally the 565
selects the most appropriate signal for the test.
Signal Description
High Continuous ‘pink’ noise, band-limited
500Hz–2kHz.
Low Continuous ‘pink’ noise, band-limited
20Hz–80Hz.
Digital In Any signal applied to the appropriate
Optical In input is combined to mono (L+R) and
Analogue In then used to supply outputs under
calibration. This allows adjustments to
be made using speech or music, or
external test signals from CD or
LaserDisc.
Sine Sweep For checking room resonance and
vibration; see opposite.
Silence No test signal – useful for tracking
down hum and noise.
Test signals
To select a different test signal
● Press the Display key.
To test for room vibrations
The Sine Sweep test signal allows you to check your room for
rattles and buzzes which could interfere with your listening.
● Press the Display key until the
display shows:
Sine Sweep
● Use the =, ˘, ¯, and > (Play) keys on the Meridian System
Remote to control the Sine Sweep.