3. Adjusting subwoofer level by the use of test-tone
(LOW FREQ. TEST)
The internal low frequency test-tone generator is useful for
adjusting subwoofer level to make the subwoofer sound match the
sound of other speakers in your audio system.
Operating procedure
1. After selecting this item (title) in step 2 on page 25, press the
Par or – key to display the mode for adjustment.
2. By pressing the Par or – key, select a channel
(MAIN/CENTER/REAR EFFECT/FRONT EFFECT) to be
compared with subwoofer.
3. Press the Parameter Select (
▼
▼
) key so that the arrow points to
“TEST TONE- - - OFF”. Next press the Par or – key to
switch the “TEST TONE” to “ON”.
Hiss-like calibration signal is heard from the subwoofer(s)
connected to the MONO LOW PASS jack (or the SPLIT LOW
PASS jacks) on the rear of this unit and the speaker(s)
corresponding to the channel selected in step 2.
*
Adjust the Master VOLUME control so that the test tone can
be heard at your desired listening level.
*
Even if during source play, the test tone is output instead of
the source sounds.
4. Press the Parameter Select (
▼
▼
) key so that the arrow points to
“FREQ- - - 35 Hz”. To confirm that the subwoofer sound matches
the sound of other speakers, change the frequency of test-tone
one by one by pressing the Par or – key. (Frequency can
be changed from 35 Hz to 250 Hz in 1/6 octave step, and last, all
range (35 Hz–250 Hz) of frequencies are output.)
Adjust subwoofer level with the control on the subwoofer so
that the subwoofer sound matches the sound of other speakers in
any range of low frequencies.
NOTE: This low frequency test-tone can also be applied to check the
bass response in your room. For the best bass condition, bass sound
must be heard definitely at any position in your room. If not so,
change the setting of subwoofer or furniture in your room.
27
