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Alpine SWD-2030 Manual

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ALPINE ELECTRONICS DE ESPAÑA, S.A.
Portal de Gamarra 36, Pabellón, 32
01013 Vitoria (Alava)-APDO 133, Spain
Phone 945-283588
ALPINE ELECTRONICS MARKETING, INC.
1-1-8 Nishi Gotanda,
Shinagawa-ku,
Tokyo 141-0031, Japan
Phone 03-5496-8231
ALPINE ELECTRONICS OF AMERICA, INC.
19145 Gramercy Place, Torrance,
California 90501, U.S.A.
Phone 1-800-ALPINE-1 (1-800-257-4631)
ALPINE ELECTRONICS OF CANADA, INC.
7300 Warden Ave., Suite 203, Markham,
Ontario L3R 9Z6, Canada
Phone 1-800-ALPINE-1 (1-800-257-4631)
ALPINE ELECTRONICS OF AUSTRALIA PTY. LTD.
6-8 Fiveways Boulevarde Keysborough,
Victoria 3173, Australia
Phone 03-9769-0000
ALPINE ELECTRONICS GmbH
Frankfurter Ring 117
80807 München, Germany
Tel. 089-3242640
ALPINE ELECTRONICS OF U.K. LTD.
Alpine House
Fletchamstead Highway, Coventry CV4 9TW, U.K.
Phone 0870-33 33 763
ALPINE ELECTRONICS FRANCE S.A.R.L.
(RCS PONTOISE B 338 101 280)
98, Rue de la Belle Etoile, Z.I. Paris Nord Il,
B.P. 50016, 95945 Roissy Charles de Gaulle
Cedex, France
Phone 01-48638989
ALPINE ITALIA S.p.A.
Viale C. Colombo 8, 20090 Trezzano Sul
Naviglio (MI), Italy
Phone 02-484781
4. ADJUSTMENT
EN
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1. Before powering-up the system, please adjust as follows: Depending on what input signal you use (Line or
speaker input) : Level to Min, LPF to middle position (75Hz) and Phase Shift to 0°.
2. Set the radio bass and treble adjust to "0" or "neutral". Adjust the radio volume to an average level. Use
music that you are familiar with. This is helpful to find the optimal adjustments.
3. Now slowly turn up the input sensitivity until the sound quality seems balanced. Do not adjust the input
sensitivity too high, as distortion may occur. Too high radio volume will also cause significant distortion.
Make sure that the sound of the other speakers is undistorted before you continue. Reduce the radio
volume when you hear audible distortion.
4. After the input sensitivity has been adjusted, set your lowpass filter according to the highpass filters of the
other speakers. We recommend 75Hz, which is center position.
5. Adjusting the lowpass filter changes the sound of the subwoofer. Repeat steps 3 and 4 until the optimum
is found.
6. Last adjustment is the phase shift. Turn the control very slowly between 0° and 180° while listening to
music in the usual listening position. Listen to the sound and keep the adjustment position that sounds
best and most balanced in its spectrum. The optimal adjustment depends on many acoustical factors and
shape of the vehicle, as well as the distance of the subwoofer to the listening position.
ALPINE ELECTRONICS (Benelux) GmbH
Leuvensesteenweg 510-B6
1930 Zaventem, Belgium
Tel. 02-7251315
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