MTX Audio TN8MS Manual Del Usuario página 3

CONTROL FUNCTIONS
1. Power Terminal (+12V) - This is the main power input for the amplifier and must be connected
directly to the positive terminal of the vehicle's battery for proper operation. Use caution when
installing (+12V) power cable in the vehicle. Avoid running this cable parallel with RCA cables,
antennas, or other sensitive equipment due to massive currents that can induce noise into the
audio system. It is also very important to have a tight, secure connection for maximum
performance. MTX recommends using a minimum of 8 AWG full copper power wire with the
TN8MS powered enclosure.
2. Remote Terminal (REM) - 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 "power
antenna". Note: When speaker high level inputs are used, the remote function is automatic.
Connection of this cable is not needed.
3. Ground Terminal (GND) - A proper ground is required for your amplifier to operate at peak
performance. A short ground cable the same diameter as the power cable should be used to
attach the ground terminal directly to the chassis of the vehicle. Always remove paint, dirt or
debris to expose bare metal where the ground will be attached.
4. Protection LED - The LED illuminates red when the amp is in thermal protection.
5. Power On LED - The LED illuminates red when the amp is switched on.
6. RCA Inputs - These RCA inputs are used with source units that have RCA or Line level outputs.
(Source units need a minimum level of 100mV output for proper operation of the amplifier). MTX
recommends only high quality RCA cables to decrease the possibility of radiated noise entering
the system.
7. Gain Control - The gain control matches the input sensitivity of the amplifier to the source unit
being used. The operating range varies from 100mv to 4V.
Adjusting the gain:
1. Turn the gain control on the amplifier all the way down (counter clockwise).
2. Turn up the volume control on the source unit to approximately
3. Adjust the gain control on the amplifier until audible distortion occurs.
4. Adjust the gain control down until audible distortion disappears.
5. The amplifier is now calibrated to the output of the source unit.
8. Speaker Level Inputs - This input will allow the amplifier to operate from source units with
speaker-level outputs. Output speaker leads from the source unit should be tied directly to the
wire harness provided with the amplifier. Note: When speaker high level inputs are used, the
remote function is automatic.
9. EBC Port (External Bass Control) - The Remote Subwoofer Level Control (EBC) plugs directly
into this port, while the EBC itself can be placed anywhere in the vehicle for on demand bass
adjustments. The EBC is included.
10. 15A Fuse - When the fuse blows, replace it with the same value. Never use a higher rated fuse!
11. Phase Switch - Two positions are available - 0° or 180°. Always try both and use the one that
produces more bass sitting at the front.
12. Bass Boost - Raises the bass level @ 45Hz from 0dB to +12dB. Use with moderation.
13. Low Pass X-Over Frequency Control - Used to select the desired low-pass (LP) x-over frequency.
The frequency is adjustable from 50Hz to 150Hz.
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