Classe Audio SSP-25 Owner's Manual page 41

Setting the correct level with a Test CD is pretty easy. The test tone is constant, and of a long enough duration, that
you can just watch the LEDs while increasing or decreasing the level until you see the match you're looking for. As
stated above, merely increase the level until the OVER LEDs just light, then back off 1 dB at a time. A 1 dB reduction
should be just enough, because you are attempting to set a –20 dB level. When OVER is just flickering on, and since
OVER is –19 dB, when you decrease the level 1 dB you should be back to –20 dB. When the OVER LED is just
barely no longer lit you have set the correct input level for analog. Another possible way to adjust the level is to feed a
full-scale (0 dB) test signal from the source player, and adjust the input level so that the CLIP LED just turns off. You
can use this test signal level because the CLIP indicator comes on at 0 dB.
Setting the correct level with a music feed is difficult because music tends to go up and down in volume. Try to use a
CD which does not have a great deal of dynamic range and which has songs long enough that you will have time to
set the level. Because you are attempting to set a level that will not clip the input, you are trying to make sure that while
the OVER LED remains lit (more or less) the CLIP LED never lights. Use three or four songs from three or four CDs,
just to make sure the level is set properly.
Setting the level for the analog input from a satellite receiver is no harder. In the same fashion as above, provide a
music signal from the satellite and change the input level using the "/\" and "\/" keys until the OVER LEDs are lit but the
CLIP LED never lights. Make the same kind of arrangements with other analog inputs, like an FM Tuner or the stereo
feed from a television.
When you have finished setting up an input and wish to set up another you press "MENU" once to go back to the
"Source setup – A?? setup" display. Use the ">" key to move to the next input you want to correct the input level on
and, as before, press the "ENTER" key. You must use the direct access key to select the same input, and you must be
sure it has been set for "Analog – Stereo" or you will not be able to accurately set the analog input level.
Press MENU three times, to back out of the menus and return the SSP-25 to full operating mode.
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