Garage
Shop

See all parts that fit your 1981 Colt

Polk Audio DXi651 Car/Marine/ATV Speakers

360 Watt 6-1/2" DXi Series 2-way Coaxial Car Speakers - Marine Certified for Boat/ATV/Motorcycles!

EXCLUSIVE
Product videos
highlight-star-icon

• 60 Watts RMS Each, 180 Watts Max Each
• 3/4" (19mm) aluminum dome tweeter
• Dynamic Balance polypropylene cone
• 4 Ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 2"

Learn more about the dxi651

We apologize

This item has been discontinued

NVX - Worth the Envy - Direct to Consumer Car Audio

Loading...
RVM-35V1 main

MB Quart RVM-35V1

3.5" Touchscreen Multi-Zone Digital Multimedia Receiver with Bluetooth for RV's

-10.38%

$189.99

List price $211.99

RV.R1 main

DS18 RV.R1

Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's

55
RVDVD3.0 main

MB Quart RVDVD3.0

Multi-Zone DVD Receiver with Bluetooth for RV's

1
-10.10%

$257.99

List price $286.99

MB Quart RVM2.0

Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's

-10.29%

$156.99

List price $174.99

RVM-10V1 main

MB Quart RVM-10V1

10" Touchscreen Multi-Zone Digital Multimedia Receiver with Bluetooth for RV's

-9.09%

$250.00

List price $275.00

Product Highlights


• 60 Watts RMS Each, 180 Watts Max Each
• 3/4" (19mm) aluminum dome tweeter
• Dynamic Balance polypropylene cone
• 4 Ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 2"

Description


Polk Audio brand icon

Authorized dealer

Polk Audio DXi651: Clean and Precise Sound


Polk Audio DXi651 Car Speaker


Klippel Motor Optimization:

The DXi651 is made with laser measurement technology via the Klippel Motor Optimization for a smooth excursion path at any volume. This creates a more efficient and long lasting speaker that performs great at low or high volumes.





Polk Audio DXi651 Car Speaker


Proprietary Dynamic Balance Technology:

Polk's engineers are able to design out driver and system resonances that cause distortion with the Dynamic Balance technology. The composite cones also feature a stiffness-to-mass ratio that allows the speakers to react to faster transients with finer detail. You not only get clarity, but function and precision.







General Features:

  • 6 1/2" DXi Series 2-way Coaxial Car Speakers
  • Comes with 6 3/4" adaptor rings for easy fit in VWs, Audis, BMWs and other European cars
  • Power Handling:
    • Peak: 360 watts per pair / 180 watts each
    • RMS: 120 watts per pair / 60 watts each
  • Recommended Power Range: 4 - 60 watts RMS per channel
  • Dynamic Balance polypropylene cone
  • Butyl Rubber surround
  • 3/4" (19mm) swivel-mount aluminum dome tweeter
  • Top-mount Depth: 2"
  • Cutout Dimensions: 5"
  • 4 ohm impedance
  • Frequency Response: 35Hz-22kHz
  • Sensitivity: 92dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Per Pair

Check out the DXi651 Owner's Manual



Product history:

Polk Audio DXi651 thumbnail
(newest, current model)
JBL GTO628 thumbnail
(previous model, replaced by Polk Audio DXi651 Car/Marine/ATV Speakers)
JBL GTO627 thumbnail
(previous model, replaced by JBL GTO628)

Best selling similar products

46CSC654 small

Kicker CSC65 (46CSC654)

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

(254)

$79.96

List price $119.99

Club 622 small

JBL Club 622

• 180 watts Peak Each, 60 watts RMS Each
• Silk Edge Driven Dome tweeters with 0dB or -3dB adjustable output levels
• UV-Resistant Polypropylene cone material with Plus One woofer cone architecture
• Impedance: 3 ohm
• Sensitivity: 93 dB

(5)

$99.95

List price $139.95

DB652 small

Polk Audio DB652 (DB 652)

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

(214)

$109.00

List price $119.99

Specifications & Details


Speaker Specifications
Series
Polk DXi Series
Priced Per
Pair
Speaker Size
6-1/2"
Design
2-way Coaxial
Tweeter Design
Dome
Tweeter Size
3/4"
Tweeter Composition
Aluminum
Woofer Composition
Dynamic Balanced polypropylene
Woofer Surround
Butyl Rubber
Peak Power Handling
180 watts
RMS Power Handling
60 watts
Sensitivity
92 dB
Frequency Response
35 - 22000 Hz
Impedance (Per Voice Coil)
4 ohm
Top-Mount Depth (Mounting Depth)
2"
Cutout Dimensions
5"
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

DXi651

Weight:

5.50lbs

Internal SKU:

dxi651

Internal Product ID:

112437

Product and How-to Videos


  • Polk Audio DXi Series Marine Certified Car Speakers | Product Overview
  • Replace your Car Speakers and Upgrade to Better Sound | Sonic Electronix
  • How To Test Speaker Polarity | Tips & Demo | Car Audio 101

Customer Ratings & Reviews


Polk Audio DXi651 Car/Marine/ATV Speakers thumbnail image

5 star
78%
4 star
18%
3 star
4%
2 star
0%
1 star
0%



Durability
4.7
Value
4.8
Features
4.7
Design
4.7
Usability
4.7

Customer Reviews

Sort by:

Loading...

Excellent Product

The following review is for a previous version (GTO628).

Highly recommended. I ordered these speakers specifically for a 05 Toyota Sequoia with JBL system. The speakers; although not perfect, do fit in the door to replace the 7" factory speaker. Great sound and good base. The 2ohm speaker produces fantastic volume.

By Scott on December 30, 2014

98 found this helpful


worked Great

The following review is for a previous version (GTO628).

I installed these in an older Nissan for my niece and she loves these. They work great and sound great.

By Lenard on June 3, 2012

90 found this helpful


Sound Great

The following review is for a previous version (GTO628).

Replaced the factory speakers in my Titan, great sound improvement even with factory head unit.

By Donald on December 5, 2014

88 found this helpful


Great speakers

The following review is for a previous version (GTO628).

Great sounding speaker, good full range of sound and the ability to adjust the tweeter so easily comes in handy more often then I thought it would. It's handled many hours of being blasted down the road with the windows open.

By Ben on August 6, 2012

87 found this helpful


GTO628

The following review is for a previous version (GTO628).

Sounded good running of head unit but it was over heating head. Sounds even better amped.

By Lil Ron on August 19, 2014

88 found this helpful


worked well for 2002 Toyota Sequoia

The following review is for a previous version (GTO628).

Our 2002 Sequia front speakers blew. after checking with the dealer and getting a price of $400.00 each i looked for opptions. they sound great and fit fine using the adapter (turned out the factory speakers we're a little bigger.. around 7") but they worked!!

By Weberbox on July 19, 2011

86 found this helpful


Ok speakers

The following review is for a previous version (GTO628).

I am using these in the front of my car. They are ok, but not much bass coming off them. I have JBL's in my front and Polk Audio in the rear and they sound great. The price was ok too.

By Deven on June 13, 2011

83 found this helpful


Great price

The following review is for a previous version (GTO628).

Replace stock speakers on 02 Dodge Durango with this JBL and add a 4 cha. amp wooo. Lots of mid bass came out of these little speakers. just make sure that you have some power going to them or will not get loud and clear.

By SoundLauro on March 27, 2013

81 found this helpful


Great speaker for a tight space!!!

The following review is for a previous version (GTO628).

I have these installed in a Jeep Wrangler. Much improved performance and sound over stock. My sound bar woke up after installation.

By Jeff on September 24, 2012

80 found this helpful


Great value

The following review is for a previous version (GTO628).

It was perfect for my applacation in every way price, fit, and in sound thanks so much!

By Dallas on March 16, 2011

81 found this helpful



Related Searches


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

1981 Dodge Colt

2014 Dodge Avenger

2007 Toyota FJ Cruiser

2013 BMW X5 M

2010 Honda Fit

2025 Lincoln Nautilus

2006 Volkswagen Jetta

1981 Audi 4000 S

2000 BMW 740i

2009 Toyota Sienna

Vehicle
Store
Delete

2014 Harley Davidson FXDC Super Glide Custom

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.