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Alpine MRP-F450

4-Channel Amplifier

4.9

(7 reviews)

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The product on this page is discontinued.
  • 4-channel car amplifier
  • 70 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
  • 200 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • 2-, 3-, or 4-channel output
  • Variable high-pass/low-pass filters (50-400 Hz, 12 dB/octave)
  • Tuned Bass EQ (12 dB bass boost at 50 Hz for channels 3 & 4)
  • Subsonic filter (15 Hz, 24 dB/octave for channels 3 & 4)
  • MOSFET power supply
  • CEA-2006 compliant
  • STAR Topology (minimizes internal noise and prevents ground interference)
  • Speaker- and preamp-level inputs
  • Preamp outputs
  • Gold-plated screw terminals
  • Fuse rating: 25A x 2
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 13-1/4"W x 2-3/8"H x 9-9/16"D
  • 1-year SonicElectronix.com warranty
Power Specifications - Full Range Channels
RMS Power @ 4 ohms70 watts x 4 channels
RMS Power @ 2 ohms100 watts x 4 channels
RMS Power @ 1 ohmN/A
Bridged RMS Power200 watts x 2 channels
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassN/A
Number of Channels4
Total Peak Power OutputN/A
Total RMS Power Output400 watts
Maximum Input Gauge Size8 AWG
Minimum Impedance UnbridgedN/A
Minimum Impedance Bridged4 ohms
THD at Rated RMS Power1.0%
Speaker Level InputsYes
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover Frequency50 - 400 Hz
Low-Pass Crossover Frequency50 - 400 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio100 dB
Channel SeparationN/A
Bass Boost12dB
Bass/Gain RemoteN/A
Fan CooledNo
Fuse Rating25A x 2 
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for Alpine MRP-F450
Average Customer Rating is 4.9 out of 5 stars:
4.9
based on 7 Reviews
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Rating Distribution:
5 star:
.
.
86%
4 star:
.
.
14%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
4.7
Value
4.9
Features
4.6
Design
4.7
Usability
4.9
what's this?
Most Helpful Customer Reviews:
October 13, 2008 Great Amp
Review by
Brad from Saint Louis, MO
Overall
Durability
Value
Features
Design
Usability
i had this amp pushin 2 type rs and it sounded excellent. im talkin every mirror rattlin hardcore. i highly highly reccommend this amp to anybody who wants a nice system
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September 8, 2008 great amp
Review by
Kerry from Ruston, LA
Overall
Durability
Value
Features
Design
Usability
Like all Alpine amps, this one excels at what it does. Never gets hot--it's like an old friend, you never know what you have until it's gone. Just steady, reliable. The only negative--I dislike having to use y's when connecting two amps on the same rca. A simple input and output rather than an output and two inputs would be easier to use.
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January 30, 2008 BANG 4 THE BUCK
Review by
Frank from Bethlehem, PA
Overall
Durability
Value
Features
Design
Usability
Powering infinity Kappa 5X7's and im very happy, i push this thing HARD! Running it at 2ohms and i keep it cranked sometimes for up to two hours. Never had a problem, but it does get reallly hot, like burn instantly hot. Clarity is very good and its an easy to install product. I would recommend one to my mom. Good stuff!
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October 17, 2007 F-450 Delivers
Review by
Marcus from Clive, IA
Overall
Durability
Value
Features
Design
Usability
This amplifier is a great value.
$210 for 70watts continuous x 4 channels?

This amp will tear apart your stock speakers, but bring your aftermarket speakers to life.

I just had this put in my 2003 Eclipse a week ago with Infinity 6020CS components and Infinity 9613i speakers and my system sounds awesome. I have a Pioneer 490ib cd deck which goes up to 55 volume and I don't dare do it past 35-40

Even when you do turn your speakers up, this amp maintains clarity not expected from a $210 amplifier
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October 12, 2007 Amazing
Review by
Nathan from Woodinville, WA
Overall
Durability
Value
Features
Design
Usability
This amplifier makes my MB Quart speakers come to life. With 70 watts RMS at 4 ohms, I am able to turn my speakers up as loud as my ears can handle, without any distortion. I recommend this amp for anyone who needs more power than their head unit will put out.
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View All 7 Reviews for Alpine MRP-F450
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
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 4-Channel RCA Audio Interconnect CableKicker 4-Channel RCA Audio Interconnect Cable
4 Meters (13 ft.) 4-Channel RCA Audio Interconnect Cable with Dual Twisted-Pair, Hyper-Flex Technology		$21.99
Kicker X-Series RCA Interconnect CableKicker X-Series RCA Interconnect Cable
19 ft. of 4-Channel X-Series RCA Cable with dual twisted-pair conductors, hyper-flex technology, and gold-plated k-cut collars for excellent signal transfer.		$36.99
StreetWires ZN9 Series Interconnect CableStreetWires ZN9 Series Interconnect Cable
16.4 ft. of 4-Channel RCA Cable with Rhodium-plated contacts and ZeroNoise construction for clear signal transfer!		$99.99
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-F450
Weight: 12.00 lbs
Internal SKU: mrpf450
Internal product ID: 6534

Why Sonic Electronix?

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Customer Testimonial

Absolutely smooth transaction. Arrival on time. Great pricing. To purchase this product at the local store, I would have paid almost $350. It arrived at my door step for under $200 from Sonic. Great follow-up and communication.

- Sean from Charlotte, NC

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