Congratulations on your purchase of a Pyle Marine Series amplifier.
This amplifier extends the Pyle tradition into a totally new series of amps, designed from the ground up to deliver the power, performance and flexibility the modern car audio enthusiast demands. When you check the list of features offered by the PLMRA620 you'll know you made the right choice with a Pyle Marine amplifier.
General Features - PLMRA620
High Performance 2000 Watt 6 Channel Bridgeable MOSFET Amplifier
- 100 Watts x 4 Output. +250 Watts x 2 Output.
- 250 W x 4. +500 W x 2 Bridged Output (400 W x 2 + 900 W x 1)
- Variable Hi/Lo Electronic Crossover Network (CH1/CH2/ and CH3/CH4)
- Variable Bass Boost (0 → 18 dB @ 60 Hz) (CH5/CH6)
- Variable Input Level (Gain) Control
- Low and High Pass Filter Controls (CH3/CH4)
- Remote Turn On/Off ⚙️
- Gold Plated RCA Inputs
- Power ON LED Indicator
- LED Protection Indicator
- S/N Ratio: > 95 dB
- THD: <0.04 %
- Thermal Protection
- Overload Protection
- Short Circuit Protection
- Anti-Thump Turn-On
- Blue LED Level Display
Features and Specifications - 6 Ch Amp PLMRA620
The Pyle PLMRA620 is a 6-channel amplifier with various controls and connection points. The rear panel features:
- CH 3/4 High Pass Frequency Control
- CH 3/4 Crossover Mode Selector Switch: Use "FULL" for normal, full-range systems. Use "LOWPASS" or "HIGHPASS" to utilize the internal crossover for specific frequency ranges.
- CH 3/4 Input Level Control: Match the outputs of your head unit to the amplifier. Adjust until distortion begins, then reduce slightly.
- CH 1/2 High Pass Frequency Control
- CH 1/2 Crossover Mode Selector Switch
- CH 1/2 Input Level Control
- CH 5/6 Input Level Control
- CH 5/6 Bass Boost Level Control: Adjusts bass level up to approximately 18 dB.
- CH 5/6 Low Pass Frequency Control: Sets the upper frequency limit for audio sent to speakers when the crossover selector is in "low pass" mode.
- CH 1/2 Input Level Control
- Low Level Inputs: Gold-plated RCA input jacks for high impedance input, used with car stereo output using RCA-type connector cables.
- Power LED: Illuminates when power is applied.
- Protection LED: Illuminates when built-in protection circuitry is activated.
- Power Fuse: Protects the amplifier and vehicle's electrical system from short circuit conditions. Replace with the same type and rating.
- Power Terminals: Connectors for power, ground, and remote turn-on control.
- Speaker Connections: 14K gold-plated terminals for high conductivity and minimum signal loss.
Output Power @ 14.4 V DC, 1 KHz
| 4 Ohms | 2 Ohms | Bridged Mode (4 Ohms) | |
|---|---|---|---|
| RMS Power | 4 x 100 Watts + 2 x 250 Watts | 4 x 175 Watts + 1 x 400 Watts | 4 x 250 Watts + 2 x 500 Watts |
Specifications
| Parameter | Value |
|---|---|
| Frequency Response | 15 Hz - 30 KHz |
| Input Impedance (Low Level Inputs) | 10K Ohms |
| Input Impedance (High Level Inputs) | 100 Ohms |
| Input Sensitivity (Low Level Inputs) | 250 mV |
| Power Supply Voltage | 14.4 V DC Neg. Ground (10.5-16V) |
| Matching Speaker Impedance (Stereo Mode) | 2-4 Ohms |
| Matching Speaker Impedance (Bridged Mode) | 4-8 Ohms |
| Maximum Current Draw | 30 A x 2 |
| Dimensions (W x H x L) | 276 x 69.5 x 498 mm (10.9 x 2.7 x 19.6 inches) |
Electrical Connections - 6 Ch Amps PLMRA620
6 Channel Input Connections
For 4CH inputs, connect RCA cables from the head unit's audio outputs to the amplifier's CH1/CH2 and CH3/CH4 low-level input jacks.
For 6CH inputs, connect RCA cables from the head unit's audio outputs to the amplifier's CH1/CH2, CH3/CH4, and CH5/CH6 low-level input jacks.
Mono Input Connections
For mono bridged subwoofer output, connect the RCA cable from the head unit's subwoofer output to the amplifier's CH5/CH6 low-level input jacks.
Speaker Connections - 6 Ch Amps PLMRA620
6 CH Output Mode
Connect speakers to the corresponding speaker terminals on the amplifier:
- CH1 Speaker to CH1 Speaker Terminal
- CH2 Speaker to CH2 Speaker Terminal
- CH3 Speaker to CH3 Speaker Terminal
- CH4 Speaker to CH4 Speaker Terminal
- CH5 Speaker to CH5 Speaker Terminal
- CH6 Speaker to CH6 Speaker Terminal
Mono Bridged Subwoofer Output
For bridged subwoofer output, connect the subwoofer to the CH3 and CH4 speaker terminals as follows:
- Connect the positive (+) terminal of the subwoofer to the CH3 (+) terminal on the amplifier.
- Connect the negative (-) terminal of the subwoofer to the CH4 (-) terminal on the amplifier.
- The minimum speaker impedance for bridged mode is 4 Ohms.
Installation
Your new Pyle Marine Series amplifier comes complete with all required mounting hardware. When determining a suitable location in your vehicle for the amp, please remember that it is a high-power electronic device capable of generating high heat. For this reason, always choose a location in your vehicle which has low vibration, adequate ventilation, a minimum of dust, and no moisture. Be sure to mount the amp in such a manner as to allow reasonable airflow over the cooling fins.
Mounting Procedure:
- Mark the location for the mounting screw holes by positioning the amp where you wish to install it and use a scribe (or one of the mounting screws) inserted in each of the mounting holes to mark the mounting surface. If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen.
- Before attempting to drill the mounting holes, take note of any wires, lines or other devices in your vehicle which may be located behind the mounting surface!
- Drill pilot holes in the mounting surface for the mounting screws and insert them. Tighten the screws securely.
Electrical Connections
When making electrical connections to your amplifier, please observe the following:
- Use at least 8 gauge wire for power and ground connections.
- Wire the amplifier directly to the car battery.
- For the ground connection, use the shortest possible wire to a good chassis ground point.
- Wire the Remote connection to the auto start lead of your head unit, equalizer or power antenna.
About Power Fuses
Pyle Marine Series amplifiers feature built-in fuse systems. These fuses protect both the amplifier and the electrical system in your vehicle from fault conditions. If you ever need to replace the fuse in your Pyle Marine Series amp, use a fuse of exactly the same type and rating. A different type or rating of fuse may result in damage or fire.
Troubleshooting
No Output
- Confirm that all terminal strip connections are secure and tight.
- Check both in-line and built-in fuses. Both the +12 V and the Remote terminals must have +12 v referenced to chassis ground.
- Confirm that the audio signal source (car radio, equalizer, etc.) is connected and is supplying output signal. To check if the amp is supplying signal, unplug the cables from the signal source (but leave them plugged into the amp). Briefly tap the center pin of each of the disconnected RCA plugs with your finger. This should produce a noise (feedback) in your speakers.
Only One Channel Works
- Confirm that all terminal strip connections are secure and tight.
- Check the Balance control on the head unit (or other source) to verify that it is set to its midpoint.
- If you are using the Low Level RCA input, reverse the input plugs at the amplifier (i.e., switch the L with the R). If the channels which is silent switches to the other side, the problem is either in the head unit/other source or the connecting cables.
Weak Output
- Readjust the Input Level Control(s) to better suit the input signal.
Noise in the Audio
- If the noise is a "whine" whose pitch follows the engine speed, confirm that the amplifier and any other signal sources (head unit, etc.) are properly grounded.
- If the noise is a "clicking" or "popping" noise whose rate follows the engine speed, this usually means that the vehicle is equipped with resistor spark plugs and wires, or that the ignition is in need of service.
- Check the routing of the speaker and input wires to make sure they are not adjacent to wires which interconnect lights and other accessories.
- If the above steps fail to improve or clear noise interference, the system should be checked by a professional mobile audio installer.
Precautions
- Do not operate the amplifier when it is unmounted. Attach all audio system components securely within the automobile to prevent damage, especially in an accident.
- Do not mount this amplifier so that the wire connections are unprotected, or in a pinched condition, or likely to be damaged by nearby objects.
- Before making or breaking power connections in your system, disconnect the vehicle battery. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals.
- If you need to replace the power fuse, do so only with a fuse identical to that supplied with the amplifier. Using a fuse of a different type or rating may result in damage that isn't covered in the manufacturer's warranty.
