MTX Audio X3000D Manual De Instrucciones página 3

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5. Subsonic filter control - This control is used to select the desired (high pass) subsonic filter frequency. The sub-
sonic filter protects the subwoofer(s) against too low frequencies that can dammage the subwoofer(s).
6. Gain control - This control is used to match the input sensitivity of the amplifier to the particular source unit
that you are using. The operating range varies from 250mV gain fully clockwise to 5V input gain fully counter
clockwise.
7. Low pass x-over frequency control - This control is used to select the desired low pass x-over frequency. The
frequency can be adjusted between 40Hz and 200Hz.
8. Input selection switch - This switch, is used to match the amplifier's input to the source unit's or DSP unit's out-
put. If your source unit or DSP unit has a mono output you can select: Mono L or
Mono R as your input connection, if your source unit or DSP unit has a stereo output you need to select SUM for
input now both RCA inputs of the amplifier are active and the stereo signal will
be converted into a mono signal by the amplifier.
9. Phase switch - With this switch the phase of the output signal of the amplifier can be selected 0 degree (in phase)
or 180 degree (out of phase).
10. EBC port - For connecting the included Electronic Bass Control. A remote bass control so the bass can be
adjusted from the driver's seat.
11. Speaker Terminals - Be sure to observe speaker polarity through the system. Failing to wire the speakers in
proper phase could result in a loss of bass response and/or poor
overall sound quality.
Caution : the MTX X3000D amplifier is not recommended for loads below 1 ohm.
Attention : Because of the very high output power of the X3000D amplifier, all power connections (12 to 14) are dou-
ble on the amplifier (in parallel). In order to have the amp working properly all power connections must be used !
12. Power Terminal - This is the main power input for the amplifier and must be connected directly to the positive
terminal of the car battery for the amplifier to operate properly. Use caution when running this cable through the
car. Try to avoid running this cable along side the input RCA cables, antenna cabling, or other sensitive equipment
as the large amount of current flowing through this cable can induce noise into your system. It is also very impor-
tant to have a tight connection to ensure maximum performance. We recommend to use 50mm 2 power wire with
the MTX X THUNDER X3000D amplifier. As the amplifier does not have a fuse incorporated, it is recommended to
use two 150Amp ANL inline fuse (One for each 50mm 2 power connection).
13. Remote Terminal - The Amplifier can be turned on by applying 12 volts to this terminal. Typically this voltage is
supplied by a wire from the source unit marked "remote" or "electric antenna".
14. Ground Terminal - A good quality ground is required for your amplifier to operate at peak performance. A short
length of cable the same size (50mm 2 ) as your power cable should be used to attach the ground terminal directly
to the chassis of the car. Always scrape or sand any painted surfaces to expose bare metal where the ground wire
will attach.
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