Garage
Shop

See all parts that fit your 1972 MGB

MTX Audio Thunder Marine TM452

2-Channel Amplifier for Marine Use

MTX
Shop all MTX
highlight-star-icon

• Thunder Marine Series 2-Channel Class AB Marine Amplifier
• 45W x 2 chan. @ 4 ohm
• 75W x 2 chan. @ 2 ohm
• MOSFET power supply
• Conformal coated circuit board
• Gold-plated screw terminals

Learn more about the tm452

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

wet752 thumbnail

MTX WET75-2

OUR PRICE: $319.95

View item
NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
Limited time!
46CSC654 main

Kicker CSC65 (46CSC654)

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

254
-33.36%

$79.96

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

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

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

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

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

PNW-65CS2 main

AudioControl PNW-65CS2

250W Peak (200W RMS) 6.5″ PNW Series 2 Way Component 3-ohm Speakers

4
-5.90%

$319.00

List price $339.00

GX608C main

JBL GX608C (GX608CAM)

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

7
MPK 163.3 main

Hertz MPK163.3

600W Peak (300W RMS) 6.5" Mille PRO Series 3-way 4-ohm Component Speaker System

2
-14.89%

$999.99

List price $1175.00

SXE-1726S main

Alpine SXE-1726S

440W Peak (80W RMS) 6.5" SXE Series 2-way 4-ohm Coaxial Car Speakers

13
-21.82%

$42.99

List price $54.99

Description


MTX brand icon

Authorized dealer

Authorized MTX 

Dealer
  • Thunder Marine Series 2-Channel Class AB Marine Amplifier
  • RMS Power Rating:
    • 4 ohm: 45 watts x 2 chan.
    • 2 ohm: 75 watts x 2 chan.
  • Max power output: 450 watts
  • MOSFET power supply
  • LED power indicators
  • Tuned Bass EQ (0-12 dB bass boost)
  • Preamp RCA outputs
  • Conformal coated circuit board
  • Sealed covers keep amplifier controls and speaker terminals dry. Impact resistant grilles protect the speakers while still looking great.
  • Gold-plated screw terminals
  • Defeatable high-pass filter and low-pass filter (85 Hz, 18 dB/octave)
  • Subsonic Filter (24 dB at 15 Hz)
  • CEA-2006 compliant amplifier
  • Frequency response: 20-20,000 Hz
  • Dimensions: 9.5"L x 7.31"W x 2.38"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 Internet Dealer
  • 1-year Manufacturer’s warranty

Product history:

MTX WET75-2 thumbnail
(newest, current model)
MTX TM452 thumbnail
(previous model, replaced by MTX WET75-2)

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

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

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

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

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

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

M2-750X5 small

Rockford Fosgate M2-750X5

• 50 Watts x 4 + 200 Watts x 1 @ 4 ohm
• 100 Watts x 4 + 350 Watts x 1 @ 2 ohm
• 200 Watts x 2 + N/A @ 4 ohm Bridged/Mono
• 5-Channel Amplifer
• Element Ready™ design protects against outdoor exposure
• Top Mounted Control Panel

(1)

$569.99

List price $569.99

KS-DR2001D small

JVC KS-DR2001D

• 200 watts x 1 channel @ 4 ohm
• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

$339.00

List price $359.00

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
45 watts x 2 channel
RMS Power @ 2 ohms
75 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
450 watts
Total RMS Power Output
150 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
No
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
85 Hz
Low-Pass Crossover Frequency
85 Hz
Signal-to-Noise Ratio
78 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

TM452

Weight:

5.00lbs

Internal SKU:

tm452

Internal Product ID:

10333

Customer Ratings & Reviews


MTX Audio Thunder Marine TM452 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


SV-6900.BL small

Crimestopper SV-6900.BL

Universal 3rd Brake Light Camera w/ Night Vision and Programmable Parking Lines

$172.99

List price $299.99

DT 660 small

Beyerdynamic DT 660

Premium Dynamic Closed-Back Headphones with Neodymium Drivers and Fold-Away Design

(1)

$189.95

List price $259.00

PGWI850BLK small

Polaroid PGWI850BLK

4 In One Ultimate Sports Pack for Wii w/ Tennis Rackets, Baseball Bat, Golf Club and Remote Cradles

$9.99

List price $29.99

PL2400.4 2 Pack small

Planet Audio 4 Channel Full Range Class A/B MOSFET Amplifier PL2400.4 (2 Pack)

Planet Audio 4 Channel Full Range Class A/B MOSFET Amplifier PL2400.4 (2 Pack)

(4)

$290.90

List price $368.00

SWS12D4 KIT small

Alpine Type-S SWS-12D4 12" 1500w Subwoofer+Vented Sub Box+Mono Amplifier+Amp Kit

1500W Peak 12" Type-S Series Dual 4-Ohm High Performance Subwoofer Package

(370)

$309.99

List price $904.96

LCUSH small

Grado L-CUSH

L-Cushion Replacement Headphone Cushions for the 225i, 325i, RS2i and RS1i

(7)

$11.99

List price $20.00

FA6-F1 small

FLI Audio FA6-F1

6-1/2" 5-Way AciD Series Coaxial Car Speakers

(1)

$39.99

List price $69.99

No picture

Alpine Type-S SWS-12D4 12" 1500w Subwoofer+Vented Sub Box+Mono Amplifier+Amp Kit

1500W Peak 12" Type-S Series Dual 4-Ohm High Performance Subwoofer Package

(29)

$79.95

List price $170.00

MF110-B1 small

Sanus Systems MF110-B1 (Black)

Full Motion Wall Mount for Most 15" to 40" LCD Flat Panel TVs

$109.99

List price $259.99

Related Searches


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

2004 Nissan Murano

2003 GMC Sierra 2500 HD

1999 Dodge Viper

2005 Mercury Montego

1972 MG MGB

1996 Lexus LS400

2009 Lexus LS600hL

1996 Ford Thunderbird

2017 Cadillac Escalade ESV

2006 BMW 760i

Vehicle
Store
Delete

2019 Harley Davidson FLHT Electra Glide Standard

Vehicle
Store
Delete

2013 Can-Am Commander E

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.