Alpine 7893 Owners Manual - Page 11

Bass Focus

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Bass Focus The time difference between the front-rear/left-right speakers, can be adjusted at the same time. With an initial delay of 0.3 ms for each of the 0 to 39 steps, audible time correction can be done. For finer adjustment, use the procedure in the previous section "Time Correction," for which the delay steps are 0.1 ms. 1 Press the T.CORR button to select the Bass Focus mode. → Bass Focus mode → Time correction mode Normal mode ← 2 Press the BAND button to select the front-rear / left- right speakers. FL FR → RL RR Front (left-right) speakers FL FR → RL RR Left (front-rear) speakers Example of Steps 2 and 3 Setting (1) After entering corrections for the front (left and right) speakers in STEP 5, the time difference is 1.5 ms for both front-left and front-right speakers. 1.5ms 1.5ms ∗ (2) After entering corrections for the left (front and rear) speakers in STEP 5, the time difference becomes 3.0 ms* for the front left speaker and 1.5 ms for the left rear speaker. * Because the time difference was already set to 1.5 ms for the front left speaker in STEP 1, the additional correction in STEP 5 makes the time difference of the front left speaker 3.0 ms. FL FR ← RL RR FL FR ← RL RR Rear (left-right) speakers Right (front-rear) speakers 3 Turn the Rotary encoder to adjust the front-rear / left- right delay. 4 For setting another channel (speaker), repeat the steps 2 and 3. 5 After setting, press the T.CORR to return to the normal mode. NOTES • Any manual time correction adjustments will also affect corrections made in Bass Focus. However, since the interval of the manual mode is 0.1ms and that of Bass Focus is 1 step (0.3ms), some difference may occur. • Time Correction mode is automatically canceled if no buttons are pressed within 15 seconds. 3.0ms 1.5ms 1.5ms 1.5ms ∗ 1.5ms Tips * Subwoofer speaker. Delay (turn the rotary encoder) the audio signal to the front (left and right) speakers to make the apparent position of the subwoofer to be at the front. In doing this, the apparent position between the front (left and right) speakers and subwoofer will appear equal to the driver. After performing above, you can change the positions of left and right speakers by delaying the time . Continued 9-EN

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9
-EN
Bass Focus
The time difference between the front-rear/left-right
speakers, can be adjusted at the same time. With an
initial delay of 0.3 ms for each of the 0 to 39 steps,
audible time correction can be done. For finer
adjustment, use the procedure in the previous section
"Time Correction," for which the delay steps are 0.1 ms.
1
Press the
T.CORR
button to select the Bass Focus
mode.
2
Press the
BAND
button to select the front-rear / left-
right speakers.
3
Turn the
Rotary encoder
to adjust the front-rear / left-
right delay.
4
For setting another channel (speaker), repeat the steps
2 and 3.
5
After setting, press the
T.CORR
to return to the normal
mode.
NOTES
•
Any manual time correction adjustments will also affect
corrections made in Bass Focus. However, since the interval
of the manual mode is 0.1ms and that of Bass Focus is 1 step
(0.3ms), some difference may occur.
•
Time Correction mode is automatically canceled if no buttons
are pressed within 15 seconds.
→
Bass Focus mode
→
Time correction mode
Normal mode
←
FL
FR
RL
RR
FL
FR
RL
RR
→
FL
FR
RL
RR
FL
FR
RL
RR
←
←
→
Front (left-right)
speakers
Left (front-rear)
speakers
Rear (left-right)
speakers
Right (front-rear)
speakers
Example of Steps 2 and 3 Setting
(1)
After entering corrections for the front (left and right)
speakers in STEP 5, the time difference is 1.5 ms for
both front-left and front-right speakers.
(2)
After entering corrections for the left (front and rear)
speakers in STEP 5, the time difference becomes 3.0
ms* for the front left speaker and 1.5 ms for the left
rear speaker.
* Because the time difference was already set to 1.5 ms
for the front left speaker in STEP 1, the additional
correction in STEP 5 makes the time difference of the
front left speaker 3.0 ms.
Tips
* Subwoofer speaker.
Delay (turn the rotary encoder) the audio signal to the front
(left and right) speakers to make the apparent position of the
subwoofer to be at the front. In doing this,
the apparent
position between the front (left and right) speakers and
subwoofer will appear equal to the driver. After performing
above, you can change the positions of left and right speakers
by delaying the time .
1.5ms
1.5ms
∗
∗
1.5ms
1.5ms
3.0ms
1.5ms
1.5ms
Continued