Garage
Shop

See all parts that fit your 1977 Monaco

MB Quart RA480.4 (Factory Refurbished)

480W 4-Channel Reference Series Bridgeable Power Amplifier (RA4804)

MB Quart
Shop all MB Quart
Product videos
highlight-star-icon

• 60W x 4-Chan. @ 4 ohm
• 120W x 4-Chan. @ 2 ohm
• 240W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

Learn more about the LS-ra4804-RB

We apologize

This item has been discontinued

Product Highlights


• 60W x 4-Chan. @ 4 ohm
• 120W x 4-Chan. @ 2 ohm
• 240W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

Description


MB Quart brand icon

Authorized dealer

Item Condition - Refurbished:

A manufacturer refurbished product will function like new with all parts inspected or replaced as necessary. There may be slight cosmetic issues such as scratches or similar. See the description for additional details.

General Features:

  • Reference Series 4-Channel Class SQ Car Amplifier
  • Max Power Rating:
    • 4 ohm: 60 watts x 4 chan.
    • 2 ohm: 120 watts x 4 chan.
    • Bridged, 4 ohm: 240 watts x 2 chan.
  • FLUID-FETS MOSFET Circuit maximizing power efficiency while improving sound quality
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost)
  • Built-in system diagnostics and top-mounted controls
  • 4/3/2/1 Channel operation
  • Preamp RCA outputs to daisy chain multiple amps
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Black reference aluminum alloy heat-sink with illuminated MB Quart design
  • Input sensitivity:
    • Level: 200mV-6V
  • Variable high-pass filter (60-13,000 Hz)
  • Variable low-pass filter (30-250 Hz)
  • Frequency response: 30-45,000 Hz
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this amplifier.
  • Dimensions: 8-1/4"W x 13-15/16"D x 2-3/8"H
  • Authorized Internet Dealer
  • 90-Day Manufacturer's Warranty

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
60 watts x 4 channel
RMS Power @ 2 ohms
120 watts x 4 channel
Bridged RMS Power
240 watts x 2 channel
Amplifier Specifications
Series
Reference Series
Amplifier Class
SQ
Number of Channels
4-Channel
Total Peak Power Output
480 watts
Total RMS Power Output
240 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
60 - 13000 Hz
Low-Pass Crossover Frequency
30 - 250 Hz
Signal-to-Noise Ratio
92 dB
Channel Separation
80 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Fuse Rating
25A x 2 
Strappable
No
Warranty and Return Policy
Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

RA480.4-RB

Weight:

8.00lbs

Internal SKU:

LS-ra4804-RB

Internal Product ID:

92590

Product and How-to Videos


Customer Ratings & Reviews


MB Quart RA480.4 (Factory Refurbished) thumbnail image

5 star
0%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
0
Value
0
Features
0
Design
0
Usability
0

Customer Reviews

Sort by:

Loading...
Sorry, no reviews found


09-18-RAM-1500-VFSPKG small

NVX V-Series Front Speaker Upgrade Kit

Fits select 2011-2018 1500 ; Includes Speakers Harness

(124)

$119.98

List price $147.98

HRN-RR-HD2 small

iDataLink Maestro HRN-RR-HD2

Wire harness to Install new stereo and retain handlebar controls for select 2014-2025 vehicles from Harley Davidson (ADS-MRR or ADS-MRR2 module also required)

$14.99

List price $21.99

AXBUCS-SB286V small

Axxess AXBUCS-SB286V Steering Wheel Control Harness

Install a New Car Stereo, Retain Steering Wheel Controls, Backup Camera, and Other Factory Features in select 2015-2017 Impreza and Outback and Legacy with Base Stereo, 6.2" Screen

(1)

$62.99

List price $69.99

HEDPS8 small

Cerwin-Vega HEDPS8 (Sold Individually)

600W Peak (200W RMS) 8" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

$69.99

List price $69.99

LP-FRAME-BLK small

Crimestopper LP-FRAME-BLK

License Plate Frame for CAM-300 and CAM-400 Backup Camera (Black)

$35.99

List price $53.98

No picture

JL Audio VX400/4i (Open Box, Great)

400W RMS Class D VXi Series 4 Channel Car Amplifier

(1)

$982.13

List price $1249.99

(2) TERMINATOR52,BAK82,R1004 small

Boss R1004 Amplifier + (4) MTX Terminator 5.25" Speakers + Amp Kit

400W Boss Riot Series 4-Channel Amplifier + (4) MTX 5.25" Component Speakers + Bak82bl (Blue)

(117)

$132.03

List price $394.88

AVIC-F700BT small

Pioneer AVIC-F700BT

Double DIN In-dash 5.8" TFT-LCD Touchscreen Monitor with Built-in GPS Navigation, Built-in Bluetooth Hands-Free Technology, CD, MP3 Receiver, USB, SD Card and 3.5mm Aux Inputs

(15)

$429.99

List price $929.99

KFC-XW800F small

Kenwood eXcelon KFC-XW800F

600W Peak (150W RMS) 8" eXcelon Series Single 4-ohm Shallow Car Subwoofer

(5)

$199.99

List price $200.00

Related Searches


Save up to 10 different vehicles in your garage
Vehicle
Store
Delete

1977 Dodge Monaco

2007 Hyundai Entourage

2018 Nissan Versa Note

2002 BMW 330Ci

1999 Mitsubishi Eclipse

2000 Saturn SC2

2018 Chevrolet Malibu

1990 Lexus LS400

1996 Mercury Sable

2007 BMW X5

Vehicle
Store
Delete

2002 Harley Davidson FLTR Road Glide

2000 Harley Davidson FLTR Road Glide

Add vehicle Clear all vehicles
Where to find vehicle info
Are you sure you want to clear your garage?
This action cannot be undone. Confirm
This page was not designed for products.
If you continue, you will be redirected to a category customized for your vehicle. Continue
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.