Bedienungsanleitung Alpine UTE-92BT (Seite 20 von 50) (Englisch)

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BASS ENGINE SQ Function

With the BASS ENGINE SQ function on this unit, several parameters

affecting Bass performance are adjusted simultaneously. The Bass Level

adjustment varies these parameters uniformly for optimum Bass effect

at different levels.

Press and hold BASS for at least 2 seconds to switch the

sound mode.

BASS ENGINE SQ  MANUAL SET (Initial setting)

BASS ENGINE SQ:

Adjust the relevant Bass parameters uniformly and automatically.

MANUAL SET:

Adjust each audio effect setting separately and manually.

Notes

• This operation can also be performed by selecting BASS ENGIN in

Audio Setup mode. Refer to “Setting BASS ENGINE SQ ON/OFF” on

page 17.

• You can access the Sound menu mode directly by pressing BASS when

BASS ENGIN is set to OFF.

• You can set this item via the Alpine TuneIt App on a Smartphone.

Refer to “Adjusting the sound via the Smartphone” on page 25.

• If you switch the 2WAY/3WAY system (page 23) to 3WAY mode, you

cannot adjust this item.

With BASS ENGINE SQ ON, adjusting the Bass Level uniformly effects

various sound parameters for optimum Bass effect.

Press BASS to display the BASS ENGINE SQ Level

adjustment screen.

The unit’s back lighting changes during this period.

Turn the Rotary encoder to select the desired level

(+0-+6).

The initial level is +3.

Notes

• Adjustable only when DEFEAT is OFF.

• Adjustable only when 2WAY/3WAY system mode is set to 2WAY.

• The Bass parameters affected contain EQ PRESETS, 9BAND EQ,

SUBWOOFER (when set this item via Alpine TuneIt App), X-OVER,

SUBW SYS and MX SETTING. These items are set automatically in

BASS ENGINE SQ mode and cannot be adjusted separately.

• From Level 0 to Level 6, the effect of BASS ENGINE SQ increases level

by level.

• If no operation is performed for 5 seconds, the unit automatically

returns to normal mode.

About Time Correction

The distance between the listener and the speakers in a car vary widely

due to the complex speaker placement. This difference in the distances

from the speakers to the listener creates a shift in the sounds image and

frequency characteristics. This is caused by the time delay between the

sound reaching the listener’s right versus the left ear.

To correct this, this unit is able to delay the audio signal to the speakers

closest to the listener. This effectively creates a perception of increased

distance for those speakers. The listener can be placed at an equal

distance between the left and right speakers for optimum staging.

The adjustment will be made for each speaker in 3.4cm steps.

Adjust the time correction level of the front left speaker to a high value

and the rear right to zero or a low value.

The sound is not balanced because the distance between the listening

position and the various speakers is different.

The difference in distance between the front left speaker and the rear

right speaker is 1.75 m (68-7/8").

Here we calculate the time correction value for the front left speaker in

the diagram on the above.

Conditions:

Farthest Speaker – listening position: 2.25 m (88-9/16")

Front left speaker – listening position: 0.5 m (19-11/16")

Calculation: L = 2.25 m – 0.5 m = 1.75 m (68-7/8")

Time correction = 1.75 ÷ 343

× 1,000 = 5.1 (ms)

* Speed of sound: 343 m/s (765 mph) at 20°C

In other words, giving the front left speaker a time correction value of

5.1 ms makes it seem as if its distance from the listener is the same as the

distance to the farthest speaker.

Time correction eliminates the differences in the time required for the

sound to reach the listening position.

The time of the front left speaker is corrected by 5.1 ms so that its sound

reaches the listening position at the same time as the sound of other

speakers.

Adjust the time correction level of each speaker to almost the same level.

Sit in the listening position (driver’s seat, etc.) and

measure the distance (in metres) between your head and

the various speakers.

Switching BASS ENGINE SQ mode

Adjusting BASS ENGINE SQ Level

About Setup when the external power amplifier is connected.

In order to optimize the BASS ENGINE SQ, we recommend the

following power amplifier setup.

After setting up, you can adjust the BASS ENGINE SQ Level

according to the music.

1 Set gain of the power amplifier to “MIN”.

2 Set the Crossover Mode Sector switch to “OFF”.

3 Set the BASS ENGINE SQ of this unit to “ON”, and the BASS

ENGINE SQ Level to “+3”.

4 Play a song of the genre you frequently listen to, and

adjust gain of the power amplifier.

Example 1. Listening Position: Front Left

Seat

Example 2. Listening Position: All Seats

5.1ms

2.25m

0.5m

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