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Alpine Marine PDX-5M

5-Channel Class-D Marine Digital PDX Amplifier

  • 5.0

(4 reviews)

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Price Information

$749.95

–$299.96

$449.99

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Why Shop Sonic?

SONY Marine Gear Giveaway

Customer Testimonial

SONIC has the best prices, and fast shipping. This was my second purchase. This time I got new Front & Rear speakers for my truck. I installed them the day they arrived and they sound great. No need to ever go anywhere else looking for equiptment.

- Scooby from Phoenix, AZ

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  • PDX Series 5-Channel Class D Marine Boat Amplifier
  • RMS Power Rating:
    • 4 ohms: 75 watts x 4 chan. + 300 watts x 1 chan.
    • 2 ohms: 75 watts x 4 chan. + 300 watts x 1 chan.
    • Bridged, 4 ohms: 150 watts x 2 chan. + 300 watts x 1 chan.
  • DC-DC PWM power supply
  • Direct FET Power
  • STAR Circuitry
  • Salt/fog resistant (ASTM B117)
  • UV weathering protection (ASTM G154/D4329)
  • LED power and protection indicators
  • Stackable operation allows for multi-amplifier setup
  • 5/3 Channel operation
  • Soft turn-on circuitry
  • Continuously adjustable gain control
  • Thermal management control
  • Protection against over-current, over-voltage and thermal protection
  • Discrete pre-amp stage
  • Dual sided glass epoxy PC board
  • Heavy duty aluminum alloy heatsink
  • Variable high-pass filter (30-400 Hz, 12 dB/octave)
  • Variable low-pass filter (50-200 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20,000 Hz
  • Dimensions: 10-1/8"L x 7-9/16"W x 2-7/16"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

Alpine products are warranted solely by Sonic Electronix, Inc. under the same period and terms as the original Alpine warranty. Sonic Electronix is not an Authorized Alpine Dealer and Alpine requires all merchandise purchased by Sonic Electronix customers to be returned solely to Sonic Electronix. Alpine products are also covered by our Standard Return Policy for returns on exchanges or refunds within 30 days from the date of purchase.

Power Specifications - Full Range Channels
RMS Power @ 4 ohms 75 watts x 4 channels
RMS Power @ 2 ohms 75 watts x 4 channels
RMS Power @ 1 ohm Not Stable
Bridged RMS Power 150 watts x 2 channels
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms 300 watts x 1 channels
RMS Power @ 2 ohms 300 watts x 1 channels
RMS Power @ 1 ohm 300 watts x 1 channels
Peak Power Output Not Specified
Amplifier Specifications
Marine Certified Yes
Amplifier Class D
Number of Channels 5
Total RMS Power Output 600 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power .01%
Speaker Level Inputs No
Preamp Outputs No
Built-in Crossover Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency 30 - 400 Hz
Low-Pass Crossover Frequency 50 - 200 Hz
Signal-to-Noise Ratio 77 dB
Bass/Gain Remote No
Fan Cooled No
Fuse Rating 30A x 2 
CEA-2006 Compliant Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Alpine Marine PDX-5M
Average Customer Rating is 5.0 out of 5 stars:
  • 5.0
based on 4 Reviews
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Average Attributes Rating:
Durability
  • 5.0
5.0
Value
  • 4.5
4.5
Features
  • 4.5
4.5
Design
  • 4.8
4.8
Usability
  • 5.0
5.0
what's this?
Most Helpful Customer Reviews:
September 6, 2012 fantastic!
Review by
Jim from Fort Mohave, AZ
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 5.0
Outstanding sound and power! I love this amp. Best one I've ever owned. It was so easy to install. When I'm out on the boat I always get comments that it sounds great. I run 6 X 9 coax JBL's , 100 w rms and this amp is all they can handle. So happy.
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May 20, 2012 Small size, easy to install!
Review by
Bradley from Ames, IA
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I had one of these 5 channels in a Saturn Aura. It only took up a very small space in the trunk. It is super handy that all the wire connections are on the same side of the amplifier. It keeps the install cleaner. Because it is a full range class D it doesn't draw very much current compared to other 5 channels. It has a very clean sound and has plenty of power for anyone who isn't an SPL maniac.
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February 8, 2012 Crisp Clean Sound
Review by
John from Caledonia, ON, Canada
Overall
  • 5.0
Durability
  • 5.0
Value
  • 4.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I would definitely recommend this product easy to integrate and incredible sound.
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June 10, 2011 Great amp for Jeep Wrangler
Review by
Brandon from Mays Landing, NJ
Overall
  • 5.0
Durability
  • 5.0
Value
  • 4.0
Features
  • 4.0
Design
  • 5.0
Usability
  • 5.0
Installed this under the back seat of my 2005 Jeep Wrangler. Having a Jeep with the top down constantly I wanted a marine amp. The Kicker seemed to big and did not have an all that impressive subwoofer output at 4ohm's so I decided to go with this. Its small and compact compared to other 5 channels. It has simple tuning and with my Pioneer head unit it makes it easier to tune to my likings. I would say if anyone is concerned about the price use the price match garente and this link to help lower it a few dollars. Overall its an excellent product and is well built and sturdy from the speaker connector to power and ground connectors. It gets slightly warm, but nothing like my old Sony 4 channel that I had. If your concerned about which 5 channel to get this should be your number one. Haven't tested the marine quality of it, but as of right now it is holding up excellent also has the blue glow I guess that's cool, but not necessary in my opinion. Sound quality is also quiet well not for hardcore audiophiles, but for someone that likes to good quality music this is fine. Get it and you wont be disappointed. My system is 5.25 kappas up front 5.25 Polk db in the sound bar and an 8 inch polk db sub and it sounds great. Hopefully when I get my Alpine or Jl 8 it will sound even better.
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Amplifier Wiring Kits
Get the wires you need to properly install and power your marine amplifier.
  Product Price Add?
Kicker PKD4 Kicker PKD4
Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks
$199.95
NVX XKIT42 NVX XKIT42
Complete 4 Gauge Amp Wiring Kit with RCA Interconnect Cables and Speaker Wire!
$94.99
The InstallBay AK4 by Metra The InstallBay AK4 by Metra
4 Gauge Amplifier Installation Kit with RCA Interconnect Cable
$29.99
StreetWires ZN1K-04 StreetWires ZN1K-04
4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts
$39.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
  Product Price Add?
Stinger SI4617 4000 Series Interconnect Cable Stinger SI4617 4000 Series Interconnect Cable
17 ft. 6-Channel 4000 Series Audio Interconnect Cable
$41.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
  Product Price Add?
Kicker XW1220 Speaker Wire Kicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$39.95
StreetWires SCP1215BL - 12 AWG Speaker Wire StreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$24.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
  Product Price Add?
StreetWires FB4 StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing
$7.99
Kicker DB1448 (09DB1448) - Top of the Line! Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$29.95
Car/Marine Audio Installation Kit Car/Marine Audio Installation Kit
Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.
$14.99
Main Product
  Product Price Add?
Alpine PDX-5M Alpine Marine PDX-5M $449.99

Product Summary

Manufacturer: Alpine
Model number: PDX-5M
UPC: 793276300980
Weight: 10.00 lbs
Internal SKU: pdx5m
Internal product ID: 19848