The Bass Boost Switch Of The Amplifier; Setting Up The Device - Conrad Electronic Raveland Power Package 2 Notice D'emploi

b) The bass boost switch of the amplifier
The amplifier is also equipped with a bass-boost switch for the rear channels to amplify the low-bass frequencies in
two stages.
This option is especially useful to make smaller bass loudspeakers or subwoofers a little more voluminous in the low-
bass range.
The SUPER BASS switch (4) controls low-bass amplification:
• Position „0"
Low-bass amplifier is switched off
• Position „6"
Low bass is amplified by 6 dB
• Position „12"
Low bass is amplified by 12 dB
c) Setting up the device
After connecting and checking the connections, you can start using the Raveland Power Package 2.
• When you have checked the cable connections, reconnect the negative terminal of the battery.
• Turn the REAR GAIN (5) and FRONT GAIN (9) controls anti-clockwise to minimum.
• Set the REAR frequency crossover switch (2) to LPF and put the REAR LPF control (3) in centre position. This
way, the required deep-pass filter for the subwoofer is set.
• Set the FRONT frequency crossover switch (2) to HPF and set the FRONT HPF control (11) to about 100 Hz.
This way, the required high-pass filter for the satellite loudspeakers is set.
• Set the SUPER BASS switch (4) to 0dB.
• Switch on your car radio. The POWER indicator (12) lights up. If the PROTECTION indicator (13) lights up, an
error has occurred and the amplifier has to be switched off immediately. If this is the case, check all the
connections and loudspeakers. If you cannot find the error, please consult a specialist.
• If the POWER indicator (12) lights up, set the volume of the car radio to about 75% of the maximum volume.
• Now, use the FRONT GAIN control (9) to adjust the maximum volume of the satellite loudspeakers to a value
acceptable to you. If you use several amplifiers, adjust the volumes of the various amplifiers to each other. Keep
in mind that the maximum volume depends on the capacity of the loudspeakers and amplifier. Excessive volume
can damage the loudspeakers and the amplifier. Overamplification can easily be heard by distortion.
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