Polk Audio db1040

270W 10" db Series Single 4 ohm Marine Certified Subwoofer

Product videos

• 540W Peak
• 270W RMS
• Single 4 Ohms
• Polypropylene Cone
• Santoprene Rubber Surround
• Marine Certified

Learn more about the db1040

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

db1042svc thumbnail

Polk Audio DB 1042 SVC (DB1042SVC)

OUR PRICE: $99.00

View item

Product Highlights

• 540W Peak
• 270W RMS
• Single 4 Ohms
• Polypropylene Cone
• Santoprene Rubber Surround
• Marine Certified


Polk Audio

Authorized dealer

General Features:

  • 10" Single 4 Ohm db Series Subwoofer
  • Power Handling:
    • Peak: 540 watts
    • RMS: 270 watts
  • Recommended power range: 150 - 270 watts RMS
  • Impedance: 4 Ohms
  • Polypropylene cone
  • Santoprene rubber surround
  • Completely marine certified
  • Integrates cutting edge technology for optimal bass performance
  • Designed for sealed or ported enclosures
  • Mounting depth: 6-1/16"
  • Frequency response: 28-200 Hz
  • Sensitivity: 86 dB
  • db Series Subwoofer Grill Available
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Product history:

Polk Audio DB 1042 SVC thumbnail
(newest, current model)
Polk Audio db1040 thumbnail
(previous model, replaced by Polk Audio DB 1042 SVC (DB1042SVC))
Polk Audio db104 thumbnail
(previous model, replaced by Polk Audio db1040)

Subwoofer Wiring Guide

Wiring Guide to Wire 1 Polk Audio db1040 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Polk Audio db1040 Subwoofers

Mono Amp

2 Channel Amp

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Polk Audio db1040 Subwoofers

4 Channel Amp

Wiring Guide to Wire 4 Polk Audio db1040 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details

Subwoofer Specifications
db Series
Subwoofer Size
Peak Power Handling
540 watts
RMS Power Handling
270 watts
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
Frequency Response
28 - 200 Hz
86 dB
Xmax (millimeters)
7.5 mm
Subwoofer Design
Round / Circle
Main Cone Color
Woofer Composition
Woofer Surround
Santoprene Rubber
Magnet Structure
Subwoofer Grille
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Minimum Sealed Box Volume
0.66 cubic feet
Maximum Sealed Box Volume
0.66 cubic feet
Minimum Ported Box Volume
1.25 cubic feet
Maximum Ported Box Volume
1.25 cubic feet
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Shallow Mount Installation
What is in the box?
User manual
WITB: Subwoofers
Other Accessory #6
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Product and How-to Videos

Customer Ratings & Reviews

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Big BOOM for small Bucks!

Easily handles 200w RMS. Sounds as good or better than similar 'popular' subs costing 3x as much.

By Mark on January 4, 2010


found this helpful.

Great sound in sealed double enclosure

Although I've spent limited time listening to the system in my boat cabin (where the Polks reside), so far I'm happy with the sound. They're installed in a dual sealed enclosure (I think 0.7cuft per driver) and they are driven by the 5th channel on a Cadence F100-5 amp and complementing four MB Quart PVL216 6.5" full-range component speakers (which I really like). I'm much happier with the "neutrality" and accuracy of this setup as compared to a single 10" sub in a vented enclosure, which was boomier and had obvious peaks at certain frequencies that obviously colored the music (rather than just reproducing it). The Polks are tight and play every frequency evenly (I listen mostly to 70s/80s rock, fusion and prog). I have not tried any other subs in this enclosure so I can't compare them to another brand or style, but I would definitely buy them if I had to do it over again.

By Sideskraft on October 20, 2014


found this helpful.

Sound Amazingg!!!

I got two of these for Christmas along with the 1000.2 watt crunch amp and they dound amazing in my dodge ram. I am in a family of subs and these top all. Great value and sound Amazing!! must have

By gutman121 on January 23, 2011


found this helpful.

Provides the Missing Bass

This sub works great. Previously, my '02 LeSabre had nice sound with a Clarion head unit driving Sony ExPlode speakers in the door and back. I purchased this sub, an enclosure with a Jensen amp recommended by the excellent phone hostess. Within a week I had it professionally installed and I tuned the bass to fill in what was missing. It provides oomph and subtle warmth. when cranked, it performs admirably without cracking. A track on Neil Young's Lenoise album literally rattles my teeth. I highly recommend this sub and the matching Jensen amp.

By John on August 30, 2011


found this helpful.


These work great for the money. Running 2 ohm at 300w each... Plenty of bass

By Chris on September 17, 2013


found this helpful.

Good sub!

Put one of these in a friends truck on a MA audio amp. Sealed. Sounds great for what he needed.

By Jay on February 7, 2011


found this helpful.

For "normal" listening tastes

The db1040 works perfectly to fill in the bass on normal full range music. I have this powered by the sub out of a Polk 5CH amp that is also powering my 2 sets of Focal 5.25" coaxials. The blend of the bass from the db1040 and the other speakers provide a nice and "full" listening experience in my vw camper van.

By Lemon Cove on August 5, 2013


found this helpful.

Great Subs!

I bought two of these for my 94 accord and ran them too a 2 ohm load (1000watts 500 each) and these little 10s pound! great subs for the price and they do get loud! i would recommend these to anybody looking for some good sound on a budget!

By Bobby T on March 23, 2012


found this helpful.

Great Value

Have 2 of them in the back seat of a boat they sound great and hit pretty good for what you get.

By joshua on June 30, 2010


found this helpful.

ear hurting bass!!!!!

I just got 2 of these bad boys and woah. they are only hooked up at 4ohms getting 300watts, and they are twice as loud as my 2 comp MA audios that were getting 500watts each at 1ohm and I only have my amp at a 1/4 gain for the break in period and my can hear me coming from about a mile away and there is no looking out the rear view mirror cause it rattles so much. There is absolutely no cons to this sub all pros. So if your tight on cash they are the sub for you

By DJ on June 18, 2010


found this helpful.


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