Garage
Shop

See all parts that fit your 1998 A8

Boss MR800

800W Peak 2-Channel Class A/B Full Range Marine Amplifier

Boss
Shop all Boss
highlight-star-icon

• 125 Watts RMS x 2 Chan. @ 4 Ohm
• 400 Watts Max x 2 Chan. @ 2 Ohm
• Protective Humidity Coating On PC Board
• Tri-Mode Capable
• Soft Turn-On Circuitry

Learn more about the mr800

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
46CSC654 main

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers

254
-16.67%

$99.99

List price $119.99

Limited time!
Club 622 main

JBL Club 622

360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers

5
-28.58%

$99.95

List price $139.95

UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth

44
-16.69%

$149.95

List price $180.00

DB652 main

Polk Audio DB652 (DB 652)

600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers

214
-9.16%

$109.00

List price $119.99

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
43DSC6504 main

Kicker DSC650 (43DSC6504)

480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)

72
-10.53%

$84.99

List price $94.99

GX608C main

JBL GX608C (GX608CAM)

420W Peak (140W RMS) 6.5” GX Series 2 Way 2.3-ohm Component Speaker System

7
XED62 main

Cerwin-Vega XED62

600W Peak (70W RMS) 6.5" XED Series 2-Way Coaxial 4-ohm Speakers

15
-16.67%

$49.99

List price $59.99

REF6532IXAM main

Infinity Reference REF6532IXAM

360W Peak (120W RMS) 6.5" Reference Series 2 Way Coaxial 3-ohm Speakers

22
-20.01%

$119.95

List price $149.95

NSP65 main

NVX NSP65

540W Peak (180W RMS) 6.5" N-Series 2 Way Coaxial Car Speakers

93
-35.19%

$69.99

List price $107.99

Description


Boss brand icon

Authorized dealer

General Features:

  • 800W Max, 2-Channel Class A/B Marine Power Amplifier
  • RMS Power Rating:
    • 4 ohm: 125 watts x 2 chan.
  • MAX Power Rating:
    • 2 ohm: 400 watts x 2 chan.
    • Bridged, 4 ohm: 800 watts x 1 chan.
  • MOSFET PMW (Pulse Width Modulated) power supply
  • Bass Remote Details (Wired remote bass level control included)
  • LED power and protect indicators
  • Bass Boost/EQ details (0-18 dB bass boost)
  • Tri-mode capable
  • Soft turn-on circuit
  • 2/1 channel operation
  • Speaker-level inputs with included adapter
  • 2-Way System Protection circuitry (thermal and speaker short protection)
  • Exclusive protective coating on PC board to prevent humidity damage
  • Heavy duty silver aluminum alloy heat sink for extreme heat dissipation
  • RCA level inputs
  • Fixed high-pass filter (200 Hz)
  • Variable low-pass filter (40-150 Hz)
  • Input sensitivity adjustment (100mV-2V/2V-8V)
  • Damping factor (125+)
  • Frequency response: 6-50,000 Hz
  • Dimensions: 8-3/4"L x 7-3/8"W x 2-1/4"H
  • 8-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.
  • Authorized Platinum Internet Dealer
  • 1 year Sonic Electronix, and 5 years Manufacturer's warranty

Boss MR800 owner’s manual

Best selling similar products

VADM4v2 small

NVX VADM4 v2 (VADM4v2)

• 80 watts x 4 channel @ 4 ohm
• 125 watts x 4 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(111)

$209.99

List price $239.99

VAD11005v2 small

NVX VAD11005 v2 (VAD11005v2)

• 80 watts x 4 channel + 350 watts x 1 channel @ 4 ohm
• 125 watts x 4 channel + 600 watts x 1 channel @ 2 ohm
• Bridged: 250 watts x 2 channel @ 4 ohm + 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 1100 watts
• Class D 2 ohm Stable 5-Channel Amplifier

(137)

$349.99

List price $419.99

VAD17001v2 small

NVX VAD17001 v2 (VAD17001v2)

• 800 watts x 1 channel @ 4 ohm
• 1350 watts x 1 channel @ 2 ohm
• 1700 watts x 1 channel @ 1 ohm
• Total RMS Power: 1700 watts
• Class D 1 ohm Stable Monoblock Amplifier

(144)

$259.99

List price $335.99

VAD10004v2 small

NVX VAD10004 v2 (VAD10004v2)

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(117)

$279.99

List price $335.99

VAD10001v2 small

NVX VAD10001 v2 (VAD10001v2)

• 420 watts x 1 channel @ 4 ohm
• 760 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

(38)

$209.99

List price $227.99

MVPA4 small

NVX MVPA4

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

(70)

$279.99

List price $383.99

VAD22008v2 small

NVX VAD22008 v2 (VAD22008v2)

• 150 watts x 6 channel + 250 watts x 2 channels @ 4 ohm
• 225 watts x 6 channel + 400 watts x 2 channels @ 2 ohm
• Bridged: 450 watts x 3 channel + 850 watts x 1 channel @ 4 ohm
• Total RMS Power: 2200 watts
• Class D 2 ohm Stable 8-Channel Amplifier

(2)

$399.99

List price $539.99

VADM1 small

NVX VADM1 v2 (VADM1v2)

• 240 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable Monoblock Amplifier

(54)

$189.99

List price $239.99

VAD8402v2 small

NVX VAD8402 v2 (VAD8402v2)

• 300 watts x 2 channel @ 4 ohm
• 420 watts x 2 channel @ 2 ohm
• Bridged: 840 watts x 1 channel @ 4 ohm
• Total RMS Power: 840 watts
• Class D 2 ohm Stable 2-Channel Amplifier

(17)

$229.99

List price $275.99

AP200/4BT small

JL Audio AP200/4BT

• 40 watts x 4 channel @ 4 ohm
• 50 watts x 4 channel @ 2 ohm
• Bridged: 100 watts x 4 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

$549.99

List price $659.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 2 channel
RMS Power @ 2 ohms
300 watts x 2 channel
Bridged RMS Power
600 watts x 1 channel
Power Specifications - Full Range Channels
Peak Power @ 4 ohms
200 watts x 2 channel
Peak Power @ 2 ohms
400 watts x 2 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
800 watts
Total RMS Power Output
250 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
6 - 50,000 Hz
THD at Rated RMS Power
0.01%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
200 Hz
Low-Pass Crossover Frequency
40 - 150 Hz
Signal-to-Noise Ratio
102 dB
Channel Separation
90 dB
Bass Boost
0 - 18 dB
Remote bass/level controller
Yes
Fuse Rating
25A x 1 
Strappable
No
Amp Bluetooth Connectivity
Yes
Hi-Res Certified
No
What is in the box?
Paperwork
User manual
WITB: Amplifiers
Amplifier
Warranty and Return Policy
Parts Warranty Duration
6 years
Labor Warranty Duration
6 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MR800

Weight:

6.00lbs

Internal SKU:

mr800

Internal Product ID:

19708

Customer Ratings & Reviews


Boss MR800 thumbnail image

5 star
60%
4 star
40%
3 star
0%
2 star
0%
1 star
0%



Durability
4.6
Value
4.8
Features
4.6
Design
5
Usability
5

Customer Reviews

Sort by:

Loading...

Good deal

Great price - great sound! Lowest price I found on the web

By Solomon on May 15, 2011

45 found this helpful


rollerhockey 50

The staff at Sonic helped me pair this amp with a boss sub woofer I am very happy with the results. The staff a Sonic was very helpful in helping me with this.....Sonic is Great...thanks Guys

By Rollerhocky on October 29, 2010

44 found this helpful


boss MR 800

the Boss MR 800 amp. has plenty of power for my system is small & compact & very easy to hook up. I would recommend this product to my friends.

By wildbill on March 16, 2014

46 found this helpful


Boss MR800

Fantastic amplifier. Great power, and deep good sound. Very Powerful. I use it for 2 Boss Subs MR120. Easy to mount. Very smart power-volume.

By Yngvar on September 30, 2010

42 found this helpful


Very good amp

I have this amp hook up to two six and half wade board speakers on my can am commander and they sound great. I didn't adjust any controls and it has enough power for both. I would recommend this amp to anyone who wants a small but powerful amp that's small enough to fit anywhere.

By Nate on February 6, 2016

9 found this helpful




PRO-200W small

Whistler PRO-200W

200W Pro Power Inverter

(1)

$24.99

List price $49.95

DPX308U small

Kenwood DPX308U Open Box

In-Dash Double DIN AAC/WMA/MP3 CD Receiver w/ Remote, iPod Direct Control and Variable Illumination

$189.95

List price $250.00

D19.523.1-PC740 small

Oral-B D195231

Professional Care 7400 Electric Toothbrush

$62.99

List price $79.95

Related Searches


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

1998 Audi A8

1975 GMC K1500 Pickup

2012 Kia Sportage

1987 Porsche 924 S

1961 Chevrolet Nomad

1987 Chevrolet Nova

2016 Nissan NV200

1988 Porsche 944 S2

2002 Audi A8 Quattro

2021 Subaru WRX

Vehicle
Store
Delete

2005 Harley Davidson FLSTSC Softail Springer Classic

2009 Harley Davidson FLHT Electra Glide Standard

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.