PYLE PLMRA400 (02) PDF Document

The PYLE PLMRA400 amplifier features include:

• 4-Channel Amp System

• Dual MOSFET Power Supply

• Marine Grade Construction

• Waterproof Marine Rating IP-01

• Dual Adjustable Input GAIN Level Controls

• Dual High-Level Speaker Input Connectors

• Dual RCA (L/R) Input Connector Jacks

• Gold-Plated Speaker Output Terminal Connectors

• Adjustable Input GAIN Level Control

• Anti-Thump Delay Circuitry

• Built-in Thermal, Overload & Speaker Short Protection

• Heavy-Duty Aluminum Alloy Heatsink

• Power ON LED Indicator

• Remote Turn ON/OFF

The box for the PYLE PLMRA400 contains:

• 4-Ch. Marine Amplifier

• Audio Connection Cables

• Output Power: 100 Watt x 4 MAX

• Amplifier Class: AB

• Fuse Type: 20A

• Input Gain Impedance Adjustment: 1 – 300mV

• Frequency Response: 15 – 30kHz +/-3dB

• Input Impedance: 10k Ohms (Low), 100 Ohm (High)

• Input Sensitivity: 250mV (Low), 2.5V (High)

• T.H.D.: <0.04%

• Matching Speaker Impedance: 4-8 Ohms

• Power Supply: DC 12V

• Dimensions (L x W x H): 9.0″ x 7.9″ x 2.0″ -inches

1. POWER ON LED: Lights up when the remote on system is energized.

2. INPUT GAIN CONTROL: Adjusts high impedance input gain from 1 V to 300mV for best matching with the PREAMP output for your car stereo.

3. LOW IMPEDANCE INPUT (HIGH LEVEL INPUT): Two terminal inputs (Front & Rear) for LOW impedance. Used for connecting to car stereos with speaker level outputs.

4. HIGH IMPEDANCE INPUT (LOW LEVEL INPUT): Gold plated RCA input jacks for high impedance. Used for connecting to a car stereo’s RCA outputs.

5. POWER FUSE: Protects both the amplifier and the automobile electrical system from wrong electrical conditions.

6. POWER SUPPLY TERMINAL: For connecting the +12V DC power supply.

• BATT + : Connect +12V DC power supply wire from the (+) terminal of the battery.

• GROUND: Connects the ground wire from the chassis of the automobile.

• REMOTE: Connects the control wire for remote turn-on and off from the RADIO/CASSETTE player’s power antenna wire.

7. SPEAKERS TERMINALS: A signal barrier strip for easy connection of speakers. You may use 4 to 8 ohms speakers.

This unit is provided with gold plated RCA input jacks for high impedance. Couple the RCA input with the car stereo output using RCA type connector cables. If your stereo has only left and right 2 channels outputs, you must use a Y-adaptor for connection.

The PYLE PLMRA400 is provided with two terminal inputs (Front & Rear) for LOW impedance (high level) connections.

• If your car stereo has four speaker outputs (LF, RF, LR, RR), wire the input according to the diagrams for four speaker output mode (Floating Ground Type or Common Ground Type).

• If your car stereo has two speaker outputs, wire the input according to the diagrams for two speaker output mode (Floating Ground Type or Common Ground Type).

No, the high and low impedance inputs cannot be used at the same time.

Connect the speaker output terminals on the amplifier to the corresponding speakers. The speakers can be easily connected to the signal barrier strip. You may use 4 to 8 ohms speakers.

The speakers must be high quality and capable of handling high power. Separated return paths and strong wires are required.

The PYLE PLMRA400 has built-in short circuit protection. If you mistakenly connect any speaker wires to ground, or positive power (+) and (-) wires short together, the protection circuit will operate automatically and cut-off output. In case of this, you must switch OFF the whole system immediately, double check speaker wire connections and isolation before switching on the amplifier again.

1. Connect the B+12V pole of the power supply directly to the battery (+) position terminal.

2. Connect the GND pole of the power supply directly to the (-) negative ground battery terminal or car chassis.

3. To make a good grounding and prevent motor boating noise problems, connect another 12 gauge minimum wire from the (-) negative battery terminal to the chassis of the stereo unit.

4. Connect the ‘Remote’ pole to an external switch for positive 12V ON/OFF. This may be connected to the receiver’s power antenna lead.

If the unit is used in the line level (high impedance) mode, it is recommended to use gold plated RCA connection cables with the length as short as possible and mount the unit as close as possible to the receiver. This will lower the chance of stray magnetic pick up that may cause noise in the system.

1. Choose a suitable location.

2. Check the clearance behind and above the mounting area.

3. Wire the unit according to the proper wiring diagram.

4. Using the hardware provided, attach the unit to the mounting surface.

1. After all the connections have been made, turn ON your stereo and listen for the amplifier to turn ON. If there are any unusual noises from the speakers then turn the system off and recheck all the wiring.

2. After you have connected your radio or equalizer to the amplifier, you may adjust the gain control to match the output level of your radio by following the specific adjustment procedure.

A. Set the volume control on your radio to the 2/3 position.

B. Adjust the gain control for an average listening level.

C. Turn the radio volume all the way down and listen for background noise.

D. Start your vehicle and listen for electrical noise.

E. Making fine adjustments to the sensitivity can reduce background noise and some engine noise.

F. CAUTION: Never turn the sensitivity up any farther than you need to get clear sound at 2/3 volume.

G. This adjustment only needs to be made once.

• Keep the amplifier dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that corrode electronic circuits.

• Use and store the amplifier only in normal temperature environments. Temperature extremes can shorten the life of electronic devices and distort or melt plastic parts.

• Handle the amplifier gently and carefully. Dropping it can damage circuit boards and cases and can cause the amplifier to work improperly.

• Keep the amplifier away from dust and dirt which can cause premature wear of parts.

• Wipe the amplifier with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the amplifier.