ESX VISION VS 200C BMW Mode D'emploi page 5

6. Amplifier Interconnection (only VS200C BMW)
The following example shows the interconnection of a 4-channel amplifier. A suitable amplifier for the VS200C BMW sound system, is e.g.
the ESX XENIUM X-FOUR with 4 x 75 Watts RMS and a matching filter section.
Please refer to the owner's manual of the amplifier to ensure the correct connection and operation.
Frontpanel
of X-FOUR
Rearpanel
of X-FOUR
The channel pair CH3 / 4 must be operated in low pass-/band pass mode. After connecting the two bass speakers to the speaker outputs
CH3 & CH4 of the amplifier [ A ], set the controller of the low pass filter [ B ] to about 130 Hz. In order to use the optimum volume of the bass
speakers, it is important to use a high-pass filter and subsonic filter as well. Now set the controller of the high pass filter [ C ] on channel pair
CH3/4 to about 40 Hz.
After the installation of the midwoofers and tweeters in the doors and the connection of the crossovers, the signal inputs of the crossover
must be connected to the speaker outputs CH1 & CH2 of the amplifier [D]. Now set the controller of the high pass filter [E] on the amplifier to
150 Hz.
IMPORTANT NOTE:
The midwoofers and tweeters must be driven in any case by a high pass filtered channel pair, otherwise the speakers could be damaged
with too low frequencies. To be on the safe side, set first the crossover frequency of the highpass filter [ E ] of CH1 & CH2 on the amplifier, if
possible, slightly higher than 150 Hz and then regulate down slowly and carefully.
At the crossovers, you are able to adjust the tweeter level in following steps:
-6dB for a lower tweeter level, -3dB for a standard tweeter level and 0dB for a high tweeter level
HINTS FOR SETTING THE LEVEL INPUT OF THE AMPLIFIER:
First, turn the two input level controllers [ F or G ] at the amplifier counterclockwise to the MIN. position. Now turn up the volume of the head
unit (car radio) to 80% - 90% of its maximum volume. Then turn slowly and carefully the input level controller [ F ] at the amplifier back in
clockwise direction, until you hear some distortions, then back a bit, until no distortions are audible. Then proceed accordingly with the other
input level controller [ G ]. The right volume balance between the channel pairs CH1/2 and CH3/4 should be selected according to your taste
and listening habits, but you should set the level controller [ F ] of the two bass speakers on CH3/4 a little higher than CH1/2, so the bass
develops a better performance.
Always make absolutely sure, that the audio signal of both channel pairs is not overdriven or distorted, when you turn up the volume control-
ler on your head unit (car radio), because this could damage the speakers permanently.
F C
G E
A D
ENGLISH
B
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