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Alpine MRP-M450

Class D Monoblock Amplifier

4.8

(22 reviews)

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The product on this page is discontinued.

Specials with this product

  • Free Ground Shipping to the 48 statesdetails
  • mono subwoofer car amplifier
  • 220 watts RMS x 1 at 4 ohms (400 watts RMS x 1 at 2 ohms)
  • variable low-pass filter (50-200 Hz, 24 dB/octave)
  • tuned Bass EQ (0-12 dB bass boost at 50 Hz)
  • subsonic filter (15 Hz, 24 dB/octave)
  • MOSFET power supply
  • CEA-2006 compliant
  • STAR Topology (minimizes internal noise and prevents ground interference)
  • speaker- and preamp-level inputs
  • gold-plated screw terminals
  • fuse rating: 20A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9-3/4"W x 2-3/8"H x 9-9/16"D
  • 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 ohms220 watts x 1 channel
RMS Power @ 2 ohms400 watts x 1 channel
RMS Power @ 1 ohmNot Stable
Bridged RMS PowerNot Bridgeable
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power OutputN/A
Total RMS Power Output400 watts
Maximum Input Gauge Size8 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance BridgedNot Bridgeable
THD at Rated RMS Power1%
Speaker Level InputsYes
Preamp OutputsNo
Built-in CrossoverLow-pass (LP)
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency50 - 200 Hz
Subsonic Filter15 Hz
Signal-to-Noise Ratio90 dB
Channel SeparationN/A
Bass Boost0 - 20 dB
Bass/Gain RemoteNo
Fan CooledN/A
Fuse Rating20A x 2 
CEA-2006 CompliantYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Alpine MRP-M450
Average Customer Rating is 4.8 out of 5 stars:
4.8
based on 22 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
82%
4 star:
.
.
14%
3 star:
.
.
5%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.8
Value
5.0
Features
4.6
Design
4.7
Usability
5.0
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
September 1, 2011 BEST AMP!!
Review by
TypeC from red wing MN
Overall
Durability
Value
Features
Design
Usability
This amp is so AMAZING!!! I have TWO of them pushing TWO 10" ALPINE type Rs in a sub zero vented box! You can't breath in my car!! My windshield wipers flex! My back seat flexes so much that I think it's gunna break off!! These amps are so nice!! And they stay so cool! Even when I bump for 3 hours streat! They get a little warm at the most!! I would recommend this amp to anyone looking for good sound quality and hard hitting bass for a good price!!
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March 18, 2010 awesome amp
Review by
k.o from everson wa
Overall
Durability
Value
Features
Design
Usability
i would definitely recommend this amp i used it to power my jl w6 and pounded the h*** out of that sub
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July 31, 2008 UNDERRATED
Review by
Derik from Mooresville, NC
Overall
Durability
Value
Features
Design
Usability
This thing is Great. Stays nice a cool, not too big, great power! im powering a JL Audio 12W3v3 off it and it bummmps like crazy. and the price is awesome on Sonic.
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July 11, 2008 Bump for your buck!
Review by
Mark from Springfield, MO
Overall
Durability
Value
Features
Design
Usability
I recently had this amp paired with one 10" JL W3V3 sub and it has very nice hard hitting bass! I was worried that this sub would be too underpowered for the JL sub but it does the trick nicely and my rearview mirror is getting the earthquake treatment!!
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May 15, 2008 nice amp!
Review by
ben from Troutman, NC
Overall
Durability
Value
Features
Design
Usability
i had this amp running to one alpine 12" e type and it preformed nicely!
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View All 22 Reviews for Alpine MRP-M450
Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
 ProductPriceAdd?
Monster Cable BAP300Monster Cable BAP300
8 Gauge Amplifier Installation Power Kit (No RCA Interconnects)
$40.00
Kicker DCK8Kicker DCK8
8 Gauge Amplifier Installation Kit with RCA Interconnect Cable
$47.99
Gauge Adapter
In situations where the input gauges on the amplifier is smaller than the power/ground cable gauge, one of these gauge adapters should be used. They are easy to use and enable your amplifier to to still receive all the power that it requires.
 ProductPriceAdd?
Monster Cable Gauge Reducer (4 AWG to 8 AWG)Monster Cable Gauge Reducer (4 AWG to 8 AWG)
Chrome plated gauge reducer allows 4 AWG cable to fit in 8 AWG inputs.
$6.00
Bass Remote Control
Control the volume level of your bass and amplifier from the front of the vehicle.
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Universal Remote Level Bass ControlUniversal Remote Level Bass Control
Controls bass level and frequency via RCA/Interconnect connectors on any amp.
$14.99
Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.
$12.99
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.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$19.99
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.
 ProductPriceAdd?
Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!
$14.99
Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.
$3.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!
$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
 ProductPriceAdd?
Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max
$31.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$43.99
Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$104.99
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.
 ProductPriceAdd?
StreetWires FB4StreetWires 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
$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Alpine
Model number: MRP-M450
Weight: 10.00 lbs
Internal SKU: mrpm450
Internal product ID: 6470
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Customer Testimonial

I was referred by another member of a forum that I'm on. The prices were excellent, that included an install kit at no cost to me. The shipping was fast, can't ask for much more! I will refer Sonic Electronix to others!

- Jeremy from Hanover, MD

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