Garage
Shop

See all parts that fit your 1979 Corvette

MTX Audio XThunder 502X

150W RMS, 2-Channel Amplifier X Thunder 502 X

MTX
Shop all MTX
Product videos
highlight-star-icon

X Thunder Series 2-Channel Class AB Car Amplifier • 50W x 2 chan. @ 4 ohm • 75W x 2 chan. @ 2 ohm • Stereo gain control • Heavy duty aluminum construction with large heat-sinks

Learn more about the 502x

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-12.50%

$139.99

List price $159.99

SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

XBAF69 main

NVX XBAF69

Universal 6x9" Waterproof Silicone Rubber Speaker Baffle Ring Kit (Pack of 2)

49
-42.51%

$22.99

List price $39.99

46CSC464 main

Kicker CSC46 (46CSC464)

300W Peak (100W RMS) 4x6” CS Series 2 Way Coaxial 4-ohm Speakers

88
-11.77%

$74.99

List price $84.99

H7694 main

Cerwin Vega H7694

800W Peak (150W RMS) 6x9" HED Series 4-Way Coaxial 4-ohm Speakers

32
-25.93%

$79.99

List price $107.99

P1462 main

Rockford Fosgate Punch P1 P1462

140W Peak (70W RMS) 4x6” Punch Series 2 Way Coaxial 4-ohm Speakers

37
FRING46 main

NVX FRING46

Universal 4x6" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

1
-45.02%

$10.99

List price $19.99

H746 main

Cerwin-Vega H746

550W Peak (80W RMS) 4x6" HED Series 2-Way Coaxial 4-ohm Speakers

9
C1-690x main

JL Audio C1-690x

200W RMS 6x9" C1 Series 2 Way Coaxial 4-ohm Car Speakers

8
DCX 460.3 main

Hertz DCX 460.3

160W Peak (80W RMS) 4x6" Dieci Series 2-Way Coaxial 4-ohm Car Speaker

-13.34%

$129.99

List price $150.00

Product Highlights


X Thunder Series 2-Channel Class AB Car Amplifier • 50W x 2 chan. @ 4 ohm • 75W x 2 chan. @ 2 ohm • Stereo gain control • Heavy duty aluminum construction with large heat-sinks

Description


MTX brand icon

Authorized dealer

Authorized MTX Dealer
  • X Thunder Series 2-Channel Class AB Car Amplifier
  • RMS Power Rating:
    • 4 ohm: 50 watts x 2 chan.
    • 2 ohm: 75 watts x 2 chan.
    • Bridged, 4 ohm: 150 watts x 1 chan.
  • Patented Adaptive Class AB Technology
  • LED power indicator
  • Anodized Finish
  • Single channel operation
  • Chrome X Thunder Badge
  • Stereo gain control
  • Heavy duty aluminum construction with large heat-sinks
  • Variable high-pass filter (40-8000 Hz, 12 dB/octave)
  • Variable low-pass filter (40-800 Hz, 24 dB/octave)
  • Frequency response: 20-20000 Hz
  • Dimensions: 9-3/4" L x 9-1/8" W x 2-1/4" H
  • 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

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

46CSC6934 main

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers

40
-12.50%

$139.99

List price $159.99

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

GX608C main

JBL GX608C (GX608CAM)

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

7
SXE-6926S main

Alpine SXE-6926S

280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers

13
-20.84%

$56.99

List price $71.99

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

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

R169X2 main

Rockford Fosgate Prime R169X2

260W Peak (130W RMS) 6x9" Prime Series 2 Way Coaxial 4-ohm Speakers

49

Best selling similar products

ATOM-900.2 PRO small

Deaf Bonce Apocalypse ATOM-900.2 PRO

• 350 watts x 2 channel @ 4 ohm
• 510 watts x 2 channel @ 2 ohm
• 900 watts x 2 channel @ 1 ohm
• Bridged: 1020 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 900 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

$229.90

List price $229.90

MFA 2.420 small

Deaf Bonce MFA 2.420

• 420 watts x 2 channel @ 4 ohm
• 630 watts x 2 channel @ 2 ohm
• Bridged: 1260 watts x 1 channel @ 4 ohm
• Total RMS Power: 1260 watts
• Class D 2 ohm Stable 2-Channel Amplifier

$229.90

List price $229.90

ATOM-700.2 PRO small

Deaf Bonce Apocalypse ATOM-700.2 PRO

• 230 watts x 2 channel @ 4 ohm
• 480 watts x 2 channel @ 2 ohm
• 700 watts x 2 channel @ 1 ohm
• Bridged: 960 watts x 1 channel @ 4 ohm
• 14000 watts @ 2 ohm
• Total RMS Power: 700 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

(1)

$199.90

List price $199.90

ATOM-500.2 PRO small

Deaf Bonce Apocalypse ATOM-500.2 PRO

• 231 watts x 2 channel @ 4 ohm
• 390 watts x 2 channel @ 2 ohm
• 500 watts x 2 channel @ 1 ohm
• Bridged: 780 watts x 1 channel @ 4 ohm
• 1000 watts @ 2 ohm
• Total RMS Power: 500 watts
• Class D 1 ohm Stable 2-Channel-Channel Amplifier

$189.90

List price $189.90

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

R2-200X2 small

Rockford Fosgate Prime R2 R2-200X2

• 50 watts x 2 channel @ 4 ohm
• 100 watts x 2 channel @ 2 ohm
• Bridged: 200 watts x 1 channel @ 4 ohm
• Total RMS Power: 200 watts
• Class D 2 ohm Stable 2-Channel Amplifier

(2)

$239.99

List price $239.99

VADM2 small

NVX VADM2 v2 (VADM2v2)

• 200 watts x 2 channel @ 4 ohm
• 300 watts x 2 channel @ 2 ohm
• Bridged: 600 watts x 1 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 2-Channel Amplifier

(17)

$199.99

List price $239.99

ION700.2D small

DS18 ION700.2D

• 240 watts x 2 channel @ 4 ohm
• 350 watts x 2 channel @ 2 ohm
• Bridged: 700 watts x 1 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

$254.96

List price $359.99

MFA 2.520 small

Deaf Bonce Machete MFA 2.520

• 520 watts x 2 channel @ 4 ohm
• 750 watts x 2 channel @ 2 ohm
• Bridged: 1500 watts x 1 channel @ 4 ohm
• Total RMS Power: 1500 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

(2)

$239.90

List price $239.90

PBR300X2 small

Rockford Fosgate Punch PBR300X2

• 100 watts x 2 channel @ 4 ohm
• 150 watts x 2 channel @ 2 ohm
• Bridged: 300 watts x 1 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class BR 2 ohm Stable 2-Channel Amplifier

(22)

$249.99

List price $279.99

Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 2 channel
RMS Power @ 2 ohms
75 watts x 2 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
150 watts x 1 channel
Amplifier Specifications
Amplifier Class
A/B
Number of Channels
2-Channel
Total Peak Power Output
300 watts
Total RMS Power Output
150 watts
Maximum Input Gauge Size
4 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
THD at Rated RMS Power
1%
Speaker Level Inputs
Yes
Preamp Outputs
No
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
40 - 8000 Hz
Low-Pass Crossover Frequency
40 - 800 Hz
Signal-to-Noise Ratio
75 dB
Remote bass/level controller
No
Fuse Rating
25A x 1 
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

502X

Weight:

7.30lbs

Internal SKU:

502x

Internal Product ID:

9034

Product and How-to Videos


Customer Ratings & Reviews


MTX Audio XThunder 502X thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
4
Design
4
Usability
5

Customer Reviews

Sort by:

Loading...

Sound quality amp

I hooked this up to my Jl vr5.25" door speakers and this amp produced exceptional sound quality. It matched the speakers very well. I love the small form factor design of this amp because it can be hidden under your passenger seat. It should be enough power for most entry to midrange speakers.

By Daniel on August 16, 2007

2 found this helpful




JBLFLIP3BLK small

JBL Flip 3 (Black)

Splashproof Portable Bluetooth Speaker with Powerful Sound and Speakerphone Technology

(3)

$79.95

List price $110.00

KDC-BT772HD small

Kenwood KDC-BT772HD

Single DIN SiriusXM Ready Bluetooth In-Dash CD/AM/FM Car Stereo Receiver w/ HD Radio

(3)

$134.99

List price $230.00

NS6 small

Numark NS6 (NS6X110)

4-Channel Digital DJ Controller/Mixer with Touch Sensitive Illuminated Wheels

(5)

$699.00

List price $1299.00

XD-1522 small

American Bass XD 15" (XD-1522)

2000W Peak (1000W RMS) 15" XD Series Dual 2-ohm Car Subwoofer

(2)

$192.35

List price $272.03

CMOS-200 small

Kenwood CMOS-200

Universal Rearview Backup Camera, Works Great with Kenwood and Others

(2)

$119.99

List price $249.99

MH BTS IE DY BK CT small

Monster Cable Diddybeats In-Ear Headphones (MH BTS IE DY BK CT)

Diddybeats High Performance In-Ear Headphones with ControlTalk and Tangle-Free Flat Cable Design (Black)

$149.00

List price $179.99

MH BTS IE DY RD CT small

Monster Cable Diddybeats In-Ear Headphones (MH BTS IE DY RD CT)

Diddybeats High Performance In-Ear Headphones w/ ControlTalk & Tangle-Free Flat Cable Design (Red)

$149.00

List price $179.99

HAS160P small

JVC HAS160P (HA-S160P) FLATS On-Ear Headphones - Pink

Lightweight Compact Headphones w/ Slim Metallic Headband (Pink)

$12.99

List price $19.95

P-W1210 small

1600W Kenwood Subwoofers and Amplifier Bass Bundle

Pair of 12" Kenwood KFC-W112S KFC Series Subwoofers + Kenwood KAC-1502S 2-Channel Amplifier

(3)

$163.97

List price $349.98

Related Searches


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

2012 Lexus GX460

2006 Chrysler 300

1995 Ford F-250

2025 Cadillac XT6

2019 Lexus UX200

1990 Dodge B Series

2015 Tesla Model S

2005 Nissan Maxima

1979 Chevrolet Corvette

2008 Volvo XC90

Vehicle
Store
Delete

2021 Harley Davidson FLRT Freewheeler

2007 Harley Davidson FLHTCSE Screamin Eagle Electra Glide

2000 Harley Davidson FXD/I Dyna Super Glide

2016 Harley Davidson FLHR Road King

2007 Harley Davidson FXSTSSE2 Screamin Eagle Softail Springer

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.