MTX Road thunder User Manual
RTLDBP
Digital Bass Processor
PRODUCT INFORMATION
Model #
Serial #
Dealer’s Name
Date of Purchase
INTRODUCTION
Thank you for purchasing this MTX Digital Bass Processor. Proper installation matched with MTX
ampliers, speakers, and subwoofers provide superior sound and performance for endless hours of
enjoyment whether you are waking the neighbors or just out enjoying your tunes. Congratulations
and enjoy the ultimate audio experience with MTX!
CONTROL FUNCTIONS
1. Inputs - The inputs use a balanced input circuit to help minimize induced noise. They are also
designed to handle very high signal voltages up to 15 volts.
2. Outputs - The outputs should be connected to a component auch as a crossover, equalizer, or
amplifer. Note: The RTLDBP should be inline before a crossover.
3. Dash Remote Control Connector
4. Power Connector
5. Para-Bass Controls - The two knobs control the Para-Bass functions of the RTLDBP. The SWEEP
knob picks the desired center frequency to be maximized. The WIDE knob adjusts how wide of a
frequency range the RTLDBP will effect.
6. PFM Subsonic Filter Switch - The RTLBDP utilizes a PFM Subsonic Filter Switch which will help
with speaker control and power management. The PFM Subsonic Filter Switch comes with three
frequency selections: 35Hz / 50Hz / 80Hz. On most systems, setting the switch at 35Hz is ne. A
higher frequency setting will provide even more protection to your system. Often a higher
frequency actually sounds louder and cleaner.
7. Bass Maximizer Indicators: These three LED indicators ash when the bass maximization circuit
is activated.
8. Power On LED
9. Input Grounding Jumpers - For most systems the jumper can be left in the BALANCED position. In
some systems, the source unit may look for a ground through the RCA connectors. In this event,
the jumpers should be moved to the UNBALANCED position.
10. Ground Isolation Jumpers - Occasionally alternator whine may appear in a system because the
source unit and amplier may use different grounding. Alternate grounding connections have
been provided to help in this situation. Make sure the system is turned OFF before these jumpers
are removed.
11. Bass Output Control Jumpers - Not all systems are designed the same. Some are designed
strictly for SPL (sound pressure level) while other are a little more tame. The Bass Maximizer
circuit can either increase or decrease the signal voltage of the Bass Restoration Circuit.
Depending upon the system, these jumpers may be changed to a higher or lower setting to
maximize the bass output and protect your speakers. In most systems the factory setting should
be ne. It is recommended to try the factory setting rst.
Remote Control
RTLDBP
MAX BASS CONTROL
POWER
WIDE
SWEEP
MIN
MAX
MIN
MAX
35Hz
50Hz
80Hz
BALANCED
INPUT
DASH
REMOTE
OUTPUT
+12V - REM - GND
L R L R
DIGITAL BASS PROCESSOR
1 3 2 4
86 75
CONTROL FUNCTIONS
Remote Control
RTLDBP
MAX BASS CONTROL
POWER
WIDE
SWEEP
MIN
MAX
MIN
MAX
35Hz
50Hz
80Hz
BALANCED
INPUT
DASH
REMOTE
OUTPUT
+12V - REM - GND
L R L R
DIGITAL BASS PROCESSOR
POWER CONNECTION
• B+(12V) - Connect the red wire to the car battery or other power source.
• Remote - Connect the orange wire to the remote activating (12V DC) wire of the car stereo or
equalizer.
• GND - Connect the black wire to the car chassis for ground connection.
BlackRed
Orange
Battery
+ –
MAX BASS CONTROL
POWER
WIDE
SWEEP
MIN
MAX
MIN
MAX
35Hz
50Hz
80Hz
BALANCED
INPUT
DASH
REMOTE
OUTPUT
+12V - REM - GND
L R L R
DIGITAL BASS PROCESSOR
SIGNAL CONNECTION
For signal connection, the output RCA connectors should be connected to the next component after
the RTLDBP, such as a crossover, equalizer, or amplier.
Equalizer
Crossover
4Ω
4Ω4Ω
4Ω
4Ω
4Ω
4Ω
4Ω
4Ω
Subwoofer
Speakers
Amplier
Amplier
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