See all parts that fit your 2017 SQ5
270W Peak (90W RMS) 4" 2-way Coaxial Speakers with Sound Dampening
Product highlights
• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"
3.5" Touchscreen Multi-Zone Digital Multimedia Receiver with Bluetooth for RV's
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Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's
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Multi-Zone Digital Audio Receiver with Bluetooth Audio Streaming for RV's
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Polk Audio DB402 (DB 402)
270W Peak (90W RMS) 4" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
Quantity: 1
Priced Per Pair
Polk Audio DB402 owner’s manual 
NVX SDBSK2 Premium Stealth Black
91 mil 1.38 sq ft Car Speaker Sound Deadening Kit (Two 10" x 10" Sheets)
Quantity: 1
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(newest, current model)
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(previous model, replaced by Polk Audio DB402 with Sound Dampening Kit)
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(previous model, replaced by Polk Audio db401)
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Manufacturer:
Model Number:
SDSK2,DB402
Weight:
4.80lbs
Internal SKU:
db402_sdbsk2
Internal Product ID:
148385
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Great deal
Got this product free with the purchase of a pair of speakers it helps out a lot looks more professional and sounds cleaner definitely give it a try for your next project.
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Don't go without it
This really helps with overall sound quality, especially mid-bass in my experience. NVX offers excellent quality at better prices are than other popular sound deadening brands.
Verified purchase
60 found this helpful
Very Thick Dynamat
This product is very thick compared to cheap versions. Priced excellent. If you want to reduce any vibration or road sound, choose this!
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Very pleased
I am glad I went with this brand. Easy application and works great in keeping my Corolla quiet and audio clean.
59 found this helpful
NVX SDBSK2 Premium Stealth Black
Thick and heavy. I was suprised with the actual quality. For the price they’re great quality
61 found this helpful
Good product
Sticky and did hook well to the cars body . Got it for free with my speakers purchase. Sonic electronix for life
58 found this helpful
NVX SDBSK2 Premium Stealth Black
For the price, I wish it came with a bit more of the material compared to other packages, but it definitely does what it's supposed to and will make a noticeable difference if you knock on the door/panel where it was placed vs where it wasn't.
Verified purchase
55 found this helpful
NVX SDBSK2 Premium Stealth Black
Easy to use and reduced vibration, allowing clear sound coming from my door speakers.
54 found this helpful
Great value
I installed these on each rear door of my 2005 Silverado. Could really hear a difference in sound quality.
55 found this helpful
NVX SDBSK2 Premium Stealth Black
Great product, Sonic Electronix is great. I've ordered a few things from time to time and have had no problems. I get the item quickly. I ordered this and was so pleased. I ordered another set. Works great.
Verified purchase
50 found this helpful
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
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