PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker Kits User Guide

: June 4, 2024
: Pyle

Table of Contents

INTRODUCTION
INSTALLATION INSTRUCTIONS
PRECAUTIONS
FUSE REPLACEMENT
WIRING INSTRUCTIONS
INPUT WIRING DIAGRAM
SPEAKER CONNECTIONS
BRIDGED MODE
OPERATION
TROUBLESHOOTING
INTERFERENCE
Features:
What’s in the Box:
Technical Specs:
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PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker
Kits

PLMRC300X2
2-Channel Weather-Resistant Audio Amplifier System
Class D Compact Designed Suit for Car, ATV,
UTV, 4X4, Jeep, Motorcycle and Marine,
and any other Weather Resistant Application

INTRODUCTION

This power amplifier has been designed to provide high-quality performance with a minimum of maintenance. However, its performance will only be as good as the care and quality of components with which is installed. We, therefore, advise that you read these instructions very carefully to familiarize yourself with the product and its features.
Before installing the power amplifier please read this instruction manual carefully. The instructions for mounting and connecting the set have to be followed precisely. If necessary, a service center should be consulted. All connections for DC power, signal input, and speaker outputs can be carried out easily and safely by way of RCA and screw terminals.

INSTALLATION INSTRUCTIONS

Please choose a mounting place without any direct weather influences. Note that the amplifier generates heat so a well-ventilated place is necessary. According to your car’s construction, the set can be made very carefully in order to ensure the amplifier’s full performance and reliability. Keep the wire connections as short as possible with sufficient dimensions in order to minimize power losses and provide a higher audio output of the system.
For safety reasons route all power and speaker wiring by using the exiting wire channels. To minimize damage to the cables, take care that they do not pass sharp-edged metal. Lay all cables as far away as possible from the ignition cables, modules in the boot, and under the key dashboard, as this creates interference.
Add a fuse into the (+) power cable in a distance of not more than 30 cm from the positive battery pole.
Keep the length of the power wires as short as possible. It is better to use power cables which are short and then longer speaker cables.

In order to reduce interference, also pay attention to the instructions.

PRECAUTIONS

This unit is designed for negative ground 12-14.50 VoIts (DC) operation only
Use speakers with an impedance of 2 or 4 Ohms (4 to 8 Ohm when used as bridged amplifier)
Avoid installing the unit where:
It would be subject to high temperatures, such as from direct sunlight or hot air from the heater.
It would be exposed to rain or moisture.
It would be subject to dust or dirt.
If your car is parked in direct sunlight and there is a considerable rise in temperature inside the car, allow the unit to cool off before operation.
When installing the unit horizontally, be sure not to cover the heatsink fins with the floor carpet.
If this unit is placed too close to the car radio, interference may occur in this case, separate the amplifier from the car radio.
This power amplifier employs a protection circuit to protect the transistors and speakers if the amplifier malfunctions.
Do not attempt to test the protection circuits by covering the heatsink or connecting improper loads.
Do not use the unit with a weak auto battery as its optimum performance depends on a normal battery supply voltage.
For safety reasons, keep the volume of your car audio system moderate so that you can still hear normal traffic sounds outside your car.

FUSE REPLACEMENT

If the fuse blows, check the power connection and replace the fuse. If the fuse blows again after replacement, there may be an internal malfunction. In this case, consult your dealer.

WARNING: Use the specified amperage fuse. The use of a higher amperage fuse may cause serious damage.
PROTECTION CIRCUIT
This amplifier is provided with a protection circuit that operates in the following cases when:

the unit is overheated.
the speaker terminals are short-circuited.

WIRING INSTRUCTIONS

POWER CONNECTION
The battery terminal (BATT) must be connected directly to the positive terminal of the vehicle battery to provide an adequate voltage source and minimize noise. Connecting the battery terminal lead to any other point (such as the fuse block) will reduce the power output and may cause noise and distortion. Use only #10 gauge or thicker (smaller gauge #) wire for this lead and connect it to the terminal of the battery after all other wiring is completed.

GROUND CONNECTION
The ground terminal (GND) connection is also critical to the correct operation of the amplifier. Use a wire of the same gauge as the power connection (#10 or thicker) and connect it between the ground terminal (GND) of the amplifier and a metal part of the vehicle close to the mounting location. This wire should be as short as possible and any paint or rust at the grounding point should be scraped away to provide a clean metal surface to which the end of the ground wire can be screwed or bolted.

REMOTE TURN-ON CONNECTION
The amplifier is turned on by applying + 12V to the remote turn-on terminal (REM). The wire leads to this terminal should be connected to the “Auto- Antenna” lead from the car stereo which will provide the + 12V only when the car stereo is turned on. If the car stereo does not provide an “Auto-Antenna” lead, the remote turn-on lead may be wired to an “Accessory” or “Radio” terminal in the car’s fuse block. This will turn the amplifier on and off with the ignition key, regardless of whether the car stereo is on or off. The remote turn-on lead does not carry large currents. So # 20 gauge wire may be used for this application.

SPEAKER CONNECTIONS
Depending on the type and number of speakers used with the amplifier wire them to the speaker terminals as per the appropriate wiring diagram. For most applications, # 18 gauge wire should be used for the speaker leads but in no case thinner than # 18 gauge. For leads is an excess of 10 feet # 12 gauge is recommended. When wiring the speakers, pay careful attention to the polarity of the terminals on the speakers and make certain they correspond to the polarity of the corresponding terminals on the amplifier. Do not ground any speaker leads to the chassis of the vehicle.

INPUT WIRING DIAGRAM

PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker Kits - INPUT
WIRING DIAGRAM

SPEAKER CONNECTIONS

PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker Kits - ISPEAKER
CONNECTIONS

BRIDGED MODE

PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker Kits - BRIDGED
MODE

POWER CONNECTION LEADS

PYLE PLMRC300X2 Marine and Waterproof Amplifier and Speaker Kits -
POWERCONNECTIONS

NOTES ON THE POWER SUPPLY

Connect the + 12V power input lead only after all other leads have been connected.
Be sure to connect the ground wire of the unit securely to a metal part of the car.
A lost connection may cause a malfunction of the amplifier.
REM: The unit is turned on by applying + 12 Volts to this terminal. This terminal does not draw heavy currents like the two Power Terminals so a thinner connecting wire is acceptable. Standard 20 GAUGE is fine and the standard color blue. If the radio is equipped with a Power Antenna control wire, it can drive this terminal. If the Power Antenna wire is already in use, you can still splice it into it. With this method, the unit will turn on automatically with the radio.
Use the power supply lead with a fuse attached whose value is the same as the original fuse.
Place the fuse in the power supply lead as close as possible to the car battery.
During a full power operation, maximum current will run through the system. Therefore, make sure that the leads to be connected to the + 12V and GND terminals of the unit respectively must be larger than 10 – Gauge (AWG. 10).

OPERATION

After the amplifier has been installed and all connections have been made carefully and securely, turn the radio ON so that the amplifier is switched on automatically. After a short power-on period, the amplifier reaches its full performance. Now turn up the volume slowly using the volume control of the radio. If there is no sound or only a distorted replay, switch off the radio immediately – the amplifier will also switch off automatically – and check if all connections have been made correctly.

GAIN = INPUT LEVEL CONTROL
The input level control allows the system to work well within a wide range of output level. Choose the adjustment in the way that you achieve a sound most possibly without any distortion.
As a guideline the following procedure is recommended:

If you use several amplifiers, the adjustment has to be made for each set separately. Tune in the volume of your car radio to2/3 of the maximum volume. Now turn the gain control of the amplifier from “Min“ to “Max“ direction until you can hear distortions. Then turn the level control a little back to “Min”. The gain control adjustment is finished now.
Attention! If you use 2 Ohm speakers in stereo mode. Tri-mode or 4 Ohm speakers in bridge mode and the overload protection is triggered out, turn the gain control to “Min” direction, until the operation is free of trouble.

X-OVER FREQUENCY CONTROL
A. When the crossover control is in the Low-Pass position, this control becomes active allowing you to select your crossover point.
B. When the crossover control is in the High-Pass position, this control becomes active allowing you to select your crossover point.

CROSS OVER SWITCH

Full: Full range frequency.
Low pass: the lower frequency under the set point can be passed.
High pass: the higher frequency above the set point can be passed.

BASS BOOST CONTROLS
This amplifier has Bass controls for making good sound combinations.
FUSE
The amplifier is equipped with a plug-in auto fuse protecting the set against fault conditions. Do not use a fuse with a higher value and never bridge the fuse over, as this may lead to irreparability damage so any claim for warranty is denied.

GND (-) = GROUND CONNECTION
Connect the GND terminal to the chassis ground of your car and take care of the best electric and mechanic contact. ln doing so, drill a hole into the car chassis near the amplifier then remove color, dirt, or any other substance from the ground point. Thereafter fasten the cable end with added ring terminal by using a screw. Ensure that the ground connection is as short as possible and that the cable diameter is sufficient (min 4mm”). Route the ground cables from the radio and all other equipment parts, like equalizer, active crossover network, or other amplifiers, to the same ground point.

+ 12V = POWER SUPPLY
Connect the BATT terminal to the positive pole of the battery with a lead cable and add a fuse into the power cable in a distance of not more than 30 cm from the battery. The lead cable’s diameter should be at least 4 mm’ for a length of 3 m and 6mm” for a length of 6m.

REM (ON/OFF) REMOTE CONTROL
Connect the REM terminal to the automatic antenna connector of your car radio. Now when turning ON and OFF your car radio, the amplifier automatically switches ON and OFF. A cable diameter of 0.5 mm is sufficient.

TROUBLESHOOTING

No Function
The connection cable is not connected correctly (=terminaI + I2V/GND/REM). Ensure that all connections and mechanic contact and that the jacket has been removed. The fuse is defective-pay attention to the correct value of a new fuse!

No Sound
The Speaker cable or speaker plug is not connected correctly.
No Sound/Red LED Protection is lit
The plus and minus wires of the speaker cable have contact, thus eliminating the short circuit. If you use a 2 Ohm speaker in stereo mode, a 4 Ohm speaker in bridge mode or tri-mode, and the set is overloaded, then turn the gain control to “min” until the operation is free of trouble.

Poor Sound Quality (Distortions)
If the speakers are overloaded, therefore turn down the volume level and check the volume control positions.
No Stereo Sound and Weak Bass
Speaker cables (+) and (-) are mixed up, the unit is wired out of phase.

California Prop 65 Warning
WARNING: This product contains Di (2-Ethylhexyl) phthalate (DEHP) which is known to the state of California to cause cancer birth defects and other reproductive harm. Do not ingest. For more info go to: www.P65warnings.ca.gov

INTERFERENCE

All cables can source and create interference. The power cable and Cinch/RCA audio cable are very prone to interference; the remote cables are less prone. There is often interference caused by the generator (piping), ignition (cracking) or other car electronic parts. Most of these problems can be eliminated by correct and careful cabling. In doing so, here are the following guidelines:

Use only a screened audio cable for the wiring between the “low level in” of the amplifier and the RCA or DIN output of the radio.
Lay the signal, speaker, and power cables separately with enough distance from one another and also from each other’s car cable. If not possible, you can lay the circuit and ground cable together with the serial cables. Audio and speaker cables should be as far away from these as possible. The REM cable to the automatic antenna output of the radio can be laid together with the signal cables.
Avoid ground loops by laying the ground wiring of all components to a center point in a star-like way. You can find the best central point in measuring the voltage directly at the battery. Now compare this voltage value with the chosen ground point and the (+) terminal of the amplifier. If the measured voltage is only slightly different, you’ve found the correct central. Otherwise, you have to look for another point. You should measure with the ignition point for the earth being switched on and additionally switched on consumers (rear window heating and light).
If there are pickups from external electrical sources into the speaker cables, divide the core leads and twist them together.
If there are noises from the car electrics, add an interference suppression choke into the power wiring.
If there are humming noises, use thicker ground cables or add further ground cables to the chassis.
To reduce contact resistance and bad loose contact, please solder the cable ends or uses multi-core cable ends, spade terminals, or others. Gold Plated spade terminals are free of corrosion and have the lowest contact resistance.
Should all these measures be without any success, the use of a ground loop isolator may solve the problem.