Car Subwoofers
This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST
GNX128
12 Inch, 8 Ohm Car Subwoofer
Push It To The Limit
There are things you want, and things you need. You want a date with Megan Fox. You need a subwoofer in your car. Understand, you don't always get what you want. But sometimes, you get what you need. (Hmmmmm.) And you get the bass you need from GNX Subwoofers.
This version is the 12" diameter, 8-Ohm model.
Like all the GNX Subs, it's totally optimized to work great in virtually any type of enclosure from Sealed to Vented to Band-Pass (if you can build it, GNX will rock it!)... At a price everyone can afford. Add some major bottom end to your ride, without hitting bottom in your wallet!
- GNX Subs are available in two sizes, 10 inch and 12 inch, and three flavors of impedance, including Dual Voice Coil models (which can be paralleled for 4-Ohm or 2-Ohm loads).
- Optimized for high performance in virtually any enclosure type: sealed, vented and bandpass.
- Super strong and durable Poly-Mica Cones for gut-pounding bass.
- Huge, injection molded ABS dust cap further stiffens the cone to supress unwanted resonance. You get incredible low distortion, high impact bass response.
- Extra beefy (beefy!) magnet structure and motor assembly for high output bass with tight control.
- Four-layer vented voice coil runs cool while your music stays hot.
- Vented pole piece for higher efficiency and ultra high power handling.
- Gold-plated three-way wire terminals for secure wire termination (fast-on, solder or screw terminal choices)
- Durable rubber surround for extended life performance.
Driver Complement | |
|---|---|
| Subwoofer | |
| Quantity | 1 |
| Diameter | 12" (30.48cm) |
Electrical | |
|---|---|
| Total Frequency Response | 18 - 400Hz |
| Nominal Impedance | 8 ohms |
| Efficiency | 93 dB |
| Power Handling | |
| Continuous | 175 watts |
| Peak | 400 watts |
| Voice Coil | |
| Driver Diameter | 2" (5.08cm) |
Thiele / Small Parameters | |
|---|---|
| Resonant Frequency | 26.16 Hz |
| LE | 1.55 mH |
| SD | 76.09 sq. in. (490.87 sq. cm) |
| VAS | 3.88 cu. ft. (109.75L) |
| QTS | 0.41 |
| QES | 0.44 |
| QMS | 6.02 |
Dimensions | |
|---|---|
| Cut-Out Diameter | 10 15/16" (27.78cm) |
| Full-Range Mounting Depth | |
| Top Mount | 5 13/16" (14.76cm) |
| Bottom Mount | 6 1/4" (15.88cm) |
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
Customer Reviews
6 reviews with an average of 4.5
Write your own reviewby Jon House, March 27, 2003
0 out of 0 people found this review helpful.Strengths:
low power handling
Weaknesses:
glue around dust cap not set until a week after my purchase
Review:
four rock with only 116 watts rms in a six foot box accusitcaly paired
by Tanner, April 13, 2003
0 out of 0 people found this review helpful.Strengths:
A really large dust cap, huge muscle magnet, and a rubber surround.
Weaknesses:
The surround is not very big, low power handling(not a big problem), and a thin voice coil.
Review:
These Speakers have performed perfectly since the day I had them installed. They do have a low power handling, but with a good quality 300 watt amp they really hit harder than I thought they would! Everybody is amazed at how loud they are. I love them!
by Bobby, April 20, 2003
0 out of 0 people found this review helpful.Strengths:
deep sound with a 250 ppi amp clean low power never heard better
Weaknesses:
Review:
clean power kick ass bass sound what can u say about it u just have to hear it this is second polk the frist was gxr 12 an now i am going to the mm124 that is how much i love the high power of polk sub nothing put the best ..........(*)(*)
by Paul Olson, April 20, 2004
0 out of 0 people found this review helpful.Strengths:
low power handling, sound great in any enclouse, hits all bass lines
Weaknesses:
Review:
These speakers are amazing. I ran two twelves in a sealed box and a 300 watt mono JBL amp and blew away cars at a local audio competion. I was 4 db's away from an explorer running 6 kicker comps and 2500 watt amp. My current best is 135.4 at the windshield without the back seats down or any holes in the rear deck.
by joey weipert, June 13, 2005
0 out of 0 people found this review helpful.Strengths:
well i have a 360watt rockford fosgate punch amp bridged to my 12in" polk audio gnx128 subs and it pounds like it was pounding around 1000 watts
Weaknesses:
my box is not completely sealed and everyone is saying that sealed boxes pound the best especially with these subs so i thind if i got a sealed box mabye my subs will hit louder
Review:
I think this is the best subwoofer i have ever boughten. I mean for 175 rms it pounds like shit. i love them and i think i might just have to buy 2 more 12in" subs.
by Frank D, July 27, 2007
0 out of 0 people found this review helpful.Strengths:
Don't require much power to be insanely loud and they sound good in any setup.
Weaknesses:
None. I've had these subs for 3 years now and I bought them used. They still hit just as hard as the day that I got them.
Review:
Originally had 2 of these in a dual bandpass with a Lanzer 400W amp in my SUV. It was ridiculously loud. I drove around with the gain on the amp about 1/4 the way up and the sub output on my HU at 1/2 and it would still make my rear view impossible to use. Once I sold my SUV my girlfriend wanted the setup but my dual box wouldn't fit in the trunk of her car. So I split them up and got a single sealed box using the same amp bridged to 1 sub and it's just as loud. She has one of the best stereos I've heard with just one of these and some Kicker 2 ways in the doors and a new HU. Simply put. Amazing.
Vintage Product
This product is considered a "Recent" or "Vintage" Polk Audio model. It is not a part of our current product lineup. It may still be available in some stores as a "close out" or "used" product. Information provided here about this product may not reflect current realities and does not imply availability. If you happen to have a question or concern about this product, contact our Customer Service Department at 1-800-377-7655 M-F 9am - 5:30pm EST. Chances are we remember it.
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