Garage
Shop

See all parts that fit your 2019 Flex

MTX RTX658

300W Max (100W RMS) 6.5" Road Thunder Extreme Series 2-way Coaxial Car Speaker

MTX
Shop all MTX
highlight-star-icon

• 300 watts Peak , 100 watts RMS
• Bullet Tweeters
• Treated Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

Learn more about the rtx658

We apologize

This item has been discontinued


Loading...
72-5601 main

Metra 72-5601

Install New Speakers in select 1998-2024 vehicles from Ford, Lincoln, Mercury

6
-10.01%

$8.99

List price $9.99

SA68 main

Scosche SA68

Add 5-1/4" or 6-1/2" Speakers to Factory 6" x 8" Mounting Locations for select 1950-2025 vehicles from Ford, Mercury, Mazda

39
-46.70%

$7.99

List price $14.99

51KSC3504 main

Kicker KSC35 (51KSC3504)

200W Peak (100W RMS) 3.5" KS Series 2 Way Coaxial 4-ohm Speakers

4
-11.11%

$79.99

List price $89.99

P1683 main

Rockford Fosgate Punch P1 P1683

260W Peak (130W RMS) 6x8" Punch Series 3 Way Coaxial 4-ohm Speakers

85
FRING68 main

NVX FRING68

Universal 6x8" or 5x7" Self-Adhesive Foam Speaker Baffle Ring Kit (Pack of 2)

12
-46.68%

$15.99

List price $29.99

51KSS6804 main

Kicker KSS68 (51KSS6804)

500W Peak (250 RMS) 6x8" KS-Series 2-way 4-ohm Component Speaker System (KSS6804)

-10.71%

$249.99

List price $279.99

JBL SHOCK WAVE 150W65 (JBLSPKSW150W65)

600W Peak (300W RMS) 6.5" Shock Wave Series 4-ohm Midrange Speakers

5
-7.70%

$119.95

List price $129.95

Limited time!

JVC CS-J6820

500W Peak (60W RMS) 6x8” J-Series 2-way 3-ohm Coaxial Car Speakers

3
-36.72%

$49.99

List price $79.00

Limited time!

Rockford Fosgate PRIME R1T-S

160W Peak (80W RMS) 1" PRIME Series Mylar Balanced Dome Car Tweeters

34
-11.11%

$39.99

List price $44.99

Description


MTX brand icon

Authorized dealer

Road Thunder Extreme Midbass Speaker

Are you looking to play your music loud? If so, then you'll want to have the Road THUNDER Extreme Series, which use PA System Technology to bring concert level sounds to your ride. Professional style bullet tweeters and midbass drivers designed to deliver exceptional volume and frequency response. And, Believe us- this incredibly efficient series will give you PLENTY OF VOLUME if you feed it with some SERIOUS POWER!

Product Details:

  • 6-1/2" Thunder Series Mid-range Car Speaker
  • Power Handling:
    • Peak: 300 watts
    • RMS: 100 watts
  • Treated Paper cone material
  • Treated Foam speaker surround
  • Bullet Tweeters
  • 2" Voice coil
  • Top-mount Depth: 2-11/16"
  • Cutout Dimensions: 5-1/2" x 5-1/2" 
  • Impedance: 8 ohm
  • Frequency Response: 136 - 6500 Hz
  • Sensitivity: 94 dB
  • Grille not included
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually


Loading...
BV850ACP main

Boss Elite BV850ACP

6.75" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto with Backup Camera

5
DMH-1800NEX main

Pioneer DMH-1800NEX

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready

2
-16.67%

$349.99

List price $420.00

iLX-W650 main

Alpine iLX-W650

7" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay and Android Auto (SiriusXM Ready)

123
-5.72%

$329.95

List price $349.95

DMH-W4660NEX main

Pioneer DMH-W4660NEX

6.8" Double DIN Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Android Auto (SiriusXM Ready)

2
-20.00%

$599.99

List price $750.00

BMV62W main

Belva BMV62W

6.2" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto and Phone Mirroring

28
-66.67%

$89.99

List price $269.99

CV15BT main

Cerwin-Vega CV15BT

Single Din Digital Media Receiver with Bluetooth

3
UTE-73BT main

Alpine UTE-73BT

Single DIN Digital Media Receiver with Bluetooth (SiriusXM Ready)

43
-16.69%

$149.95

List price $180.00

Limited time!
DMX709S main

Kenwood eXcelon DMX709S

6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto (Sirius XM Ready)

20
-33.50%

$399.00

List price $600.00

Limited time!
XAV-AX8500 main

Sony XAV-AX8500

10.1" Single DIN Floating Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay, and Wired Android Auto (SiriusXM Ready)

2
-20.20%

$798.00

List price $999.99

DEH-S7200BHS main

Pioneer DEH-S7200BHS

Single DIN CD Receiver with Bluetooth, HD Radio and SiriusXM Ready

2
-10.72%

$249.99

List price $280.00


Best selling similar products

PH654 small

Cerwin-Vega PH654

• 300 watts Peak Each, 150 watts RMS Each
• Polymide Horn Tweeters
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 101 dB

(2)

$189.99

List price $227.99

CVP8 small

Cerwin-Vega CVP8 (Sold Individually)

• 350 watts Peak, 170 watts RMS
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

$49.99

List price $59.99

PRO-X12MBASS small

DS18 PRO-X12MBASS (Sold individually)

• 1000 watts Peak Each, 500 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 96 dB

$131.95

List price $131.95

PRO-X6.4BMPK small

DS18 PRO-X6.4BMPK

• 500 watts Peak Each, 250 watts RMS Each
• 1" Aluminum Bullet super tweeters with ferrite magnets
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

(4)

$139.95

List price $139.95

10MB800FT small

PRV Audio 10MB800FT

• 1600 watts Peak Each, 800 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 99 dB

$129.91

List price $162.39

VPRO65 small

NVX VPRO65 (Sold Individually)

• 450 watts Peak Each, 225 watts RMS Each
• 1" Aluminum Bullet tweeter
• Competition Grade Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

(4)

$74.99

List price $82.99

EPICPRO8X small

AudioControl EPICPRO8X

• 350 watts Peak Each, 250 watts RMS Each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 99.2 dB

$129.00

List price $129.00

PRO-HY8.4B small

DS18 PRO-HY8.4B (Sold Individually)

• 500 watts Peak Each, 250 watts RMS Each
• IP55 water-resistant cone
• 1" Titanium Horn tweeter
• Water-Resistant Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

(1)

$131.95

List price $131.95

CVMPCL6.5 small

Cerwin Vega CVMPCL6.5 (Sold Individually)

• 200 watts Peak Each, 100 watts RMS Each
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93.2 dB

(9)

$99.99

List price $119.99

APM67AC Pro small

Deaf Bonce Apocalypse AP-M67AC PRO (M67AC PRO)

• 600 watts Peak Each, 300 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 102 dB

(1)

$209.90

List price $229.99

Specifications & Details


Speaker Specifications
Series
Thunder Series
Priced Per
Each Speaker
Number of Speakers
1
Speaker Size
6-1/2"
Design
Mid-range
Tweeter Design
Bullet
Woofer Composition
Paper
Woofer Surround
Treated Foam
Peak Power Handling
300 watts
RMS Power Handling
100 watts
Sensitivity
94 dB
Frequency Response
136 - 6500 Hz
Impedance (Per Voice Coil)
8 ohm
Voice Coil Diameter
2"
Shallow Mount Installation
No
Top-Mount Depth (Mounting Depth)
2-11/16"
Bottom-Mount Depth
2-13/16"
Cutout Dimensions
5-1/2" x 5-1/2" 
CTA-2031 Compliant
No
General specifications
Marine Certified
No
Hi-Res Certified
No
Color
Black
Speaker Grilles
No
Includes Damping Kit
without Damping Kit
What is in the box?
Paperwork
User manual
WITB: Speakers
Speakers (2)
Speaker connection cables (2)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

MTX

Model Number:

RTX658

Weight:

3.50lbs

Internal SKU:

rtx658

Internal Product ID:

43797

Customer Ratings & Reviews


MTX RTX658 thumbnail image

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



Durability
4.8
Value
4.9
Features
4.8
Design
4.7
Usability
4.8

Customer Reviews

Sort by:

Loading...

They sound great.

Wow I bought two of this speakers about a few days ago. Finally arrived last night and installed them this morning.more. Sound quality is amazing and no distortion. Definitely recommended for anyone who wants to replace those worn factory stock speakers.

By Jesus on August 28, 2014

38 found this helpful


best deal

as usual, MTX products never fails to impress me, I've always been a true fanatic and this woofer is super loud and even under it RMS power rating it's still loud and great quality sound. i'll recommend this over any other woofers as I used other brands such as 18 sound, ciare, PRV audio, selenium even faital pro.

By sound crew customizing on August 3, 2014

39 found this helpful


Great purchase

I recommend this product because good in the sound is incredible.

By Tito on May 18, 2012

35 found this helpful


replacement speakers

I have a 1990 jeep wrangler and one speaker on my center pod blew. When I bought and received the first speaker I found it wouldn't fit without modifications. So naturally I ordered this set of speakers and hooked it up to my small Rockford fosgate amp. I was impressed with the bass I got out of the speakers and their ability to hang with the fos. I recommend these and would buy them over again.

By Julian on May 14, 2015

26 found this helpful


51/2 mids

Very good midst packaged as they were described very good product fast shipping

By SwampDonkey on January 21, 2016

13 found this helpful


Great valve

Mtx products are awesome
These speakers sound great and crispy
And the price is the best will recommend

By Gus on December 19, 2016

12 found this helpful


Great Speaker

05 jeep liberty was ok with factory headset
then installed JVC head unit and bose sub with amp
Oh my Gosh clear loud concert every time i drive

By kenneth on September 24, 2020 Checkmark Icon Verified purchase

16 found this helpful


MTX SPEAKERS

THEY ARE AWESOME AND EASY TO INSTALL THE SOUND IS AWESOME

By GEOGEO on April 30, 2020

13 found this helpful


Great vision

Hope they sound good. I will put them with class D amp.

By Anonymous on May 27, 2019 Checkmark Icon Verified purchase

12 found this helpful




CDA-7998 small

Alpine CDA-7998

(6)

$589.99

List price $799.99

No picture

Soundstream VCC-3

Rearview Camera w/ LEDs

$159.99

List price $199.99

CV-630 small

Coby CV-630

Professional Open-Air Digital Stereo Headphones

$14.99

List price $31.99

No picture

Diamond Audio D7401 ( D7 401 ) FACTORY R/B

D7 Series Monoblock Amplifier

$629.99

List price $1099.99

VRX765VD small

Clarion VRX765VD

In-Dash 7" Touchscreen DVD Multimedia with iPod Video Support

(1)

$559.99

List price $1049.99

Related Searches


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

2019 Ford Flex

1981 Buick Electra

2012 Tesla Model S

2007 Chrysler Pacifica

2016 Cadillac Escalade ESV

1997 Ford Expedition

2011 Scion xD

2004 Dodge Durango

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.