Expert Service 1-661-257-9993 [Hours]

Polk Audio db691

6x9" 3-Way dB Series Marine Certified Coaxial Car Speakers

In Stock. Only 1 Left!

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Order within 14 hrs 12 mins to ship 1/23

Arrives by Friday, Jan. 27 to zip 94107

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

Speaker Features:

  • 6" x 9" 3-way Speakers (Marine Certified)
  • Power Handling:
    • Peak: 600 watts per pair / 300 watts each
    • RMS: 200 watts per pair / 100 watts each
  • Impedance: 4 ohms
  • Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
  • 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear and detailed highs
  • Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
  • Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
  • ABS Grilles, computer optimized and based on exclusive MOMO designs
  • Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
  • Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
  • Acoustically inert stamped steel basket
  • Flat Spider for faster, longer excursion linear motion
  • Flexible woven tinsel leads sewn directly into Spider for greater reliability
  • Frequency Response: 35-22,000 Hz
  • Authorized Internet Dealer
  • 90 Day Sonic Electronix Warranty

Priced Per Pair


Second Depth
The second depth is used only when the box is slanted or angled. This value is the top measurement and it is measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
Color of handle.

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Browse 7 questions and 39 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I have bought polk audio's in the past they are excellent
Larry C on Dec 22, 2016
Great reviews and the price hit the spot; where bang meets the buck! :-)
Allan T on Jan 11, 2016
love the look sturdy build bulky but still plays with finesse
Theo H on Feb 12, 2016
Quality, Past ownership.
David B on Nov 2, 2015
Do they come in gold or are they just silver?
Jose White on Nov 10, 2015
Polk Audio db691
Polk Audio db691
Polk Audio db651
Polk Audio db651
Best Answer: The 651 has a silver spoked grill as you see. There is a silver ring on the center tweet There are hydrodipping kits out there, so you could dip the grill's in gold flake or whatever color you choose. Very good speakers, They last pretty good, to all ranges of music. Please don't discontinue these PA,,,keep on them Sonic E. I don't like talking about these on here,,because everyone scoops them up then,,dammit. Ha. Have a good one.
Reply · Report · Keith H on Nov 10, 2015
· Add Answer · I Have This Question Too (2)
I want to install these on my Harley, how well do these hold up to weather and vibration?
Tim L on Apr 19, 2015
Best Answer: I bought mine to install in the fairing of my Victory Cross Country ... they were way too big! So I ended up installing something else. Not sure where U want to put them on the Harley but that could be a deciding factor.
Reply · Report · Fred L on Apr 20, 2015
· Add Answer · I Have This Question Too (0)
What amp would work best with these?
Kyle K on Dec 5, 2014
Best Answer: Do you have another pair of speakers you want to run off the amp, or just these? If it is just these, look for a two channel amp with specs of 100 watts RMS at 4 ohms. If you are looking to get another pair of speakers, look for speakers with the same specs as these, and get a four channel amp.
Reply · Report · Chris A on Dec 5, 2014
· Add Answer · I Have This Question Too (0)
what size amp do i need to run 4 polk audio db691's?
A shopper on Jul 27, 2015
Best Answer: Hello,

Like the description points out, the db691 are asking for 100 watts each @ 4ohms . So , you seek an amplifier that is guessed it... ~100w RMS @ 4ohms. Amplifiers aren't categorized by "sized" when you're looking for one that suits a specific need, so we can't answer your question in the form that it was posed, but can show you a couple examples:

Pioneer GM-D8604

Rockford Fosgate Prime R600-4D
Reply · Report · Rick MStaff on Jul 27, 2015
· Add Answer · I Have This Question Too (0)
Will these fit in the front doors of a 2011 Nissan Sentra? I know the spec's call for 6x9's but I do not know the depth tolerance.
john D on Nov 30, 2014
Best Answer: Hello John,

Unfortunately, the db691 will not fit the fronts' depth. The door has roughly 2.25"-2.5" of usable space. The most common solution, is to go with 6.5" Shallow Speakers for the front, utilizing the Scosche SA69 to fill in the space. The matching db Series is the Polk Audio db651s [2" Depth].
Scosche SA69
Scosche SA69
Polk Audio db651s
Polk Audio db651s
Reply · Report · Customer SStaff on Nov 30, 2014
· Add Answer · I Have This Question Too (0)
Will these fit into my front door of 2011 Chrysler 200?
A shopper on Sep 29, 2015
· Add Answer · I Have This Question Too (0)

Product Summary


Model Number




Internal SKU


Internal Product ID


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 db691