
1. Set the gain to MIN, Bass EQ to 0dB, LPF to 75Hz before switching on the syste .
2. Set the Bass/Treble adjust ent to zero on the head unit. Set the volu e to your average
listening level. It ay help to use a usic source that is fa iliar.
3. Next, gradually increase the gain level. Increase the level to the point where the sound of
your syste , as a whole, is balanced. If the gain level is set too high, the subwoofer ay
begin to distort. Distortion ay also occur if the volu e is set too high on the head unit.
Check that the other speakers have not begun to distort, before proceeding with the
adjust ent. If the entire speaker syste in the car is distorting, reduce the volu e of the
head unit.
4. Once the gain has been set, adjust the L.P.F (Low Pass Filter) at a frequency which
co pli ents your speaker syste . (We reco end using 75Hz as a starting point.)
5. Adjusting the L.P.F will change the output volu e of the subwoofer. Repeat procedures 3
and 4 until the ideal setting is found.
6. Adjust the Bass EQ. It is possible to boost the low frequency output of the a plifier fro
0dB (flat) to +12dB. Adjust the Bass EQ (centred at 50 Hz) to suit your personal taste.
ALPINE ELECTRONICS DE ESPAÑA, S.A.
Portal de Ga arra 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 Gra ercy 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, Markha ,
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
Kreuzerka p 7,
40878 Ratingen, Ger any
Phone 02102-4550
ALPINE ELECTRONICS OF U.K. LTD.
Alpine House
Fletcha stead 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. Colo bo 8, 20090 Trezzano Sul
Naviglio (MI), Italy
Phone 02-484781
4. ADJUSTMENT
EN
10