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Polk Audio DXi651 (DXi 651) db651 inspired Car/Marine/ATV Speakers

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

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List price $99.99

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$49.99

with warranty A Pair

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Order within 40 hrs 56 mins to ship 12/5

Arrives by Friday, Dec. 9 to zip 94107

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Polk Audio DXi651 (DXi 651) db651 inspired Car/Marine/ATV Speakers

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

$49.99

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Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

$37.85

Add
Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

$18.99

Add
NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

$12.99

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View all available accessories for the Polk Audio DXi651 (DXi 651) db651 inspired Car/Marine/ATV Speakers.

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Bundles with this Product

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Save 50% on Damping Kit to stop the rattles/vibrations!

For a limited time, save 50% on an NVX Sound Deadening Speaker Kit by clicking "Add both to cart" button on select speakers! This offer cannot be combined with any other coupons or offers.

6.50

112437

1867

Polk Audio DXi651 (DXi 651) db651 inspired Car/Marine/ATV Speakers

$49.99

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50% OFF

NVX SDSK2 - 90mil 2.3mm THICK

$12.99

Special Price $6.49 ($12.99 if purchased separately)

NVX SDSK2 - 90mil 2.3mm THICK

• Eliminates Road Noise
• 2.3mm (90.55mil) thick for better performance
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 1)

Combined Total Price

$56.48

You Save $6.50

Polk Audio Store

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 (DXi 651) db651 inspired Car/Marine/ATV Speakers)
JBL GTO627 thumbnail
(previous model, replaced by JBL GTO628)

Speaker Specifications

Series
This is the manufacturer product line of speakers.
DXi (Polk)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-1/2"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
3/4"
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Aluminum
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Dynamic Balanced polypropylene
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
180 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
60 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
92 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
35 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
2"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches, required to contain the speaker.
5"

Specials with this Item

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Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Cyber Week

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
69%
4 Star
31%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.8
Features
4.6
Design
4.5
Usability
4.7
James

Herriman, UT

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Good sound at a good price

November 27, 2016

I installed these in the front of my 2004 Honda Civic LX sedan. They fit with no issue, using a 0.5" thick mounting bracket (the speakers come with their own, but I reused the bracket from the previous speakers I had installed).

The sound is good, especially for the cost. They do not provide deep, powerful bass, but would be a great improvement over most OEM speakers. I use these speakers alongside a subwoofer, so I want the subwoofer to handle the low frequency end anyway.

0 of 0 found this helpful

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Mustang65dan

Orlando florida

Overall
Durability
Value
Features
Design
Usability
Great speaker good range

November 14, 2016

Installed speakers In kick panel and rear side panel on a 65 mustang they fit well and sound great bought 6 by 9 Polk speakers for back deck sound great will buy more from sonic when I need more stereo components

0 of 0 found this helpful

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Phillip

Morganton, NC

Overall
Durability
Value
Features
Design
Usability
Polk good OEM Replacement

October 31, 2016

Nice sound for OEM Replacement speakers. You may need brackets for Subaru Crosstrek or use cheap OEM speaker housing and cut out old woofer to make adapter for this speaker.

0 of 0 found this helpful

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Alejandro

Phoenix, AZ

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
Great sound!

September 26, 2016

These speakers sound awesome. Tight clean mid bass and mellow highs work well with all types of music. They have a premium build quality and sound at a great price.

0 of 0 found this helpful

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Mesei

Bent Mountain

Overall
Durability
Value
Features
Design
Usability
Polk Audio DXi651

September 14, 2016

I installed these in the rear doors of my 98 Grand Cherokee and they sound great. Great midrange speakers if you have a subwoofer.

0 of 0 found this helpful

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panderson477

Orlando, Florida

Overall
Durability
Value
Features
Design
Usability
Polk Speskers

September 1, 2016

Great product from a OUTSTANDING merchant! Install in a 2011 Silverado 2500HD was smooth.

0 of 0 found this helpful

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E

Rowlett, TX

Overall
Durability
Value
Features
Design
Usability
very nice sound

August 13, 2016

Polk audio, the name says everything. I will be purchasing the 6x9 next. Very good product for this price range.

0 of 0 found this helpful

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Dave

Deer Park WA.

Overall
Durability
Value
Features
Design
Usability
Miata spesker replacement

August 9, 2016

I got these speakers to replace the stock speakers in My 90 Miata. They were a direct replacement other than having to drill two new mounting holes. The speakers fit fine with room to spar and the stock grills covered them fine. The speakers are a great improvement over the stock speakers.

0 of 0 found this helpful

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Dave

Deer Park WA.

Overall
Durability
Value
Features
Design
Usability
Miata spesker replacement

August 9, 2016

I got these speakers to replace the stock speakers in My 90 Miata. They were a direct replacement other than having to drill two new mounting holes. The speakers fit fine with room to spar and the stock grills covered them fine. The speakers are a great improvement over the stock speakers.

0 of 0 found this helpful

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Eddie

Balto Md

Overall
Durability
Value
Features
Design
Usability
Inexpensive Quality

July 30, 2016

Installed these in the front doors of my Gen2 Tundra Crewmax because of the mounting depth and RMS rating and they fit perfect. The real bonus came when I heard the sound come out of these babies. Crisp, clear and powerful. Satisfied is an understatement. If you're looking to upgrade your factory sound these won't disappoint.

0 of 0 found this helpful

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Steven

cincinnati, OH

Verified Purchase
Overall
Durability
Value
Features
Design
Usability
amazing sound

June 30, 2016

I replaced the stock speakers in my 2008 Toyota Avalon with these, install was a breeze and I'm glad I did it - they sound amazing

0 of 0 found this helpful

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techdaddy101

Las Vegas, Nevada

Overall
Durability
Value
Features
Design
Usability
budget hi-fi

June 13, 2016

Really for the money it's tough to beat for what you get. First off the frequency response with or without amplification is amazing with next to no audible distortion. Moreover the materials for speakers are inline with those costing twice as much. Generally, with few exceptions these will please most regardless of music taste without a sub.

0 of 0 found this helpful

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Bdub

Jacksonville Fl

Overall
Durability
Value
Features
Design
Usability
High clarity

May 19, 2016

I replaced the factory seakers in my wife's 2013 hyundai elantra.Sounds 100% better.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $37.85

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $29.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $7.99

Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

Your Price $29.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $12.99

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $7.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

XTC 6-1/2" Round Large Frame, Shallow Foam Speaker Baffles

Creates a tight seal behind speaker for enhanced audio quality.

Your Price $13.84

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $5.99

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $11.99

Browse 1 question and 16 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
Boyfriend wanted for Christmas
Mahrlee S on Nov 30, 2016
Polk Audio has always produced good quality sound and this was a good price.
Bruce S on Nov 26, 2016
hoping to install next week
mike p on Nov 30, 2016
I did see a YouTube video where a person replaced a stock GM speaker with this speaker. He said great fit and sound. Speaker had great reviews and on sale,free shipping and no tax. This became a no brainer to purchase. .
DEAN M on Nov 19, 2016

Product Summary

Manufacturer

Model Number

DXi651

UPC

747192123963

Weight

5.50lbs

Internal SKU

dxi651

Internal Product ID

112437

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio DXi651 (DXi 651) db651 inspired Car/Marine/ATV Speakers

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