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Poly-Planar ME-400

4-channel marine amplifier
100 watts RMS x 4 channels

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Item# 693ME400 offer details

 
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Our take on the Poly-Planar ME-400

Poly-Planar's ME-400 4-channel marine amplifier sends plenty of power to your speakers or subs, so you'll hear your music loud and clear over the noises of the marine environment. Send 100 watts to each of your speakers, fore and aft, or bridge the amp to 2-channel mode to drive a pair of marine subwoofers.

You can adjust the high- and low-pass crossover network to send the right frequencies to your speakers or subwoofer. The variable bass boost lets you dial in just the right amount of kick to your system.

Poly-Planar knows that a marine amplifier needs proper protection against the elements in order to survive on a boat. The ME-400's waterproof housing, specially coated circuit boards, and gold-plated connections seal out moisture to prevent corrosion. The efficient aluminum heatsink keeps the amp cool in hot weather for uninterrupted operation.

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Highlights:

  • 4-channel marine amplifier in waterproof housing
  • 100 watts RMS x 4 at 4 ohms (150 watts x 4 at 2 ohms)
  • 300 watts RMS x 2 bridged output at 4 ohms
  • specially coated circuit boards and gold-plated connections for corrosion resistance
  • speaker-level outputs and 2 sets of preamp inputs
  • variable bass boost (0-18 dB) at 45 Hz
  • variable high-/low-pass filters (40-250 Hz)
  • MOSFET power supply
  • dimensions: 16-7/8"W x 2-3/16"H x 9-1/2"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs

Features and Specs
Performance
RMS Power Output (Watts x Channels)
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100 x 4
Frequency Response at Rated RMS Power
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20-20k Hz
THD at Rated RMS Power
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0.05%
Signal to Noise Ratio
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90 dB
Input Voltage
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13.8v
Peak Power Output (Watts x Channels)
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400 x 2
Power at 2 Ohms (Watts x Channels)
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150 x 4
Bridged Power (Watts x Channels)
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300 x 2
Minimum Impedance Bridged
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4
Minimum Impedance Unbridged
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2
Features
Amplifier Class
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AB
Low-Pass Crossover Frequency
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40-250 Hz
Low-Pass Slope (dB/octave)
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12 dB
High-Pass Crossover Frequency
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40-250 Hz
High-Pass Slope (dB/octave)
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12 dB
Bass Boost
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0-18 dB
Bass Boost Frequency
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45 Hz
Fan Cooled
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No
Fuse Rating
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20 x 2
Speaker Level Inputs
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No
Preamp Outputs
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No
Height (inches)
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21-7/8
Width (inches)
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9-1/2
Depth (inches)
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16-7/8
Parts Warranty
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2 Years
Labor Warranty
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2 Years

Product Research

Product Research
What's in the box?

Download owner's manual

  • 4-Channel marine amplifier with two 20-amp fuses inserted in chassis
  • 4 Self-adhesive rubber mounting feet
  • 4 Mounting screws
  • ME-400 Marine Amplifier Manual
  • Additional Instruction Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

Marine Rated: The Poly-Planar ME-400 marine amplifier's corrosion resistant enclosure is waterproof (IP65) and designed for use in harsh marine environments. It also features marine coated circuit boards and gold plated contacts to protect against corrosion.

AB Amplifier Design: The ME-400 is a class AB amplifier using a high-efficiency Mosfet 4-channel design that offers crisp, clean audio power. The amp also features a high-efficient, heavy aluminum heat sink to ensure uninterrupted operation.

Soft Turn On/Off: The 4-channel marine amp is equipped with Soft Turn On/Off circuitry that prevents turn-on/off thump when the amp is first turned on or off.

Bridgeable: In addition to its normal 4-channel configuration, the marine amplifier can be bridged for a 2-way or 3-way application. The amplifier is stable at 2-ohm in stereo mode and 4-ohm in bridged mode.

Independent Gain Controls: The marine amplifier features independent gain controls for channel 1/2 and 3/4 so you can match your head-units output voltage to the amplifiers input voltage for your front and rear speakers.

Built-In Crossovers: The ME-400 features independent crossover control for channels 1/2 and channels 3/4. You can select either full-range, low-pass or high-pass. The low-pass and high-pass crossovers can be adjusted between 40 to 250 Hz at a 12 dB per octave slope.

EQ Bass: The amplifier also features independent bass boost for channels 1/2 and channel 3/4. You can adjust the bass boost from 0 to 18 dB at a fixed 45 Hz.

Protection Circuitry: The amplifier's protection circuitry protects the amplifier from Thermal overload, Short-circuit and Reverse polarity. The amp features a Green LED power indicator and a Red LED protection mode indicator.

Mounting Feet: The amplifier comes equipped with four self-adhesive rubber-mounting feet that isolate vibration.

Controls

Amplifiers Controls: All of the amplifier's controls are located on the left-hand side of the amplifier for convenient access.

  • Gain Dials: The unit features two gain controls; one for channels 1/2 and the other for channels 3/4.
  • Crossover Switches: The amplifier features two crossover switches that allow you to select either Hi-pass, Low-pass or Full-range for the 1/2 channels and the 3/4 channels.
  • Crossover Dials: The amp uses two crossover controls that can be adjusted from 40 to 250 Hz for the 1/2 channels and the 3/4 channels.
  • EQ-Bass: The amp utilizes two EQ-Bass controls to adjust the bass boost of both the 1/2 channels and the 3/4 channels from 0 to 18 dB at a fixed 45 Hz.

Connections

Left-Side Connections: The following connections are located on the left-hand side of the amplifier.

  • Low Input: The amplifier utilizes two pair of gold-plated RCA inputs to provide a secure connection and excellent signal transfer for its 4-channels.

Right-Side Connections: The following connections are located on the right-hand side of the amplifier.

  • Power: The marine amplifier features a gold-plated set-screw terminal that will accept from 10 to 4-AWG wire for the power connection.
  • Ground: The marine amplifier features a gold-plated set-screw terminal that will accept from 10 to 4-AWG wire for the ground connection.
  • Remote: The marine amplifier features a gold-plated set-screw terminal that will accept 16 to 8-AWG wire for the turn-on lead.
  • Speaker Output: The marine amplifier features 4 pair of gold-plated screw terminals that will accept 16 to 8-AWG wire for the speaker outputs.
  • Fuses: The amplifier has two 20-amp fuses inserted into it's chassis.
 

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Accessories

Things you'll need

Power and Speaker Wire
Marine-grade wire is your best choice for use in a boat
Monster SMP Series Power Cable
8-gauge marine-grade cable for power or ground (Red)
$1.29
In Stock
 
 
Monster SMP Series Power Cable
8-gauge marine-grade cable for power or ground (Black)
$1.29
In Stock
 
 
Patch Cords
Use marine-grade patch cables to keep the sound flowing cleanly from your stereo to your amplifier for years to come.
Monster Cable Marine RCA Patch Cables
Sealed corrosion-resistant cables (available in 5 sizes) (5-meter, 16.5 feet)
$79.95
In Stock
 
 
Monster Cable Marine RCA Patch Cables
Sealed corrosion-resistant cables (available in 5 sizes) (2-meter, 6.6 feet)
$49.95
In Stock
 
 
 
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For a more in-depth review and enhanced detailed information on the Poly-Planar ME-400, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_693ME400/Poly-Planar-ME-400.html ).

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Poly-Planar ME-400