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Polk Audio DB402 Two Pack (DB 402)

Two Pair of 4" 2-way DB+ (Plus) Series Coaxial Car Audio Speakers with Marine/ATV/UTV Certification

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• Two Pair (4 Speakers)
• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohms Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"

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General Features:

  • Two Pair of 4" DB+ Series 2-way Full Range Coaxial Car Marine/ATV/UTV Speakers
  • Universal fit for cars, boats, motorcycles, ATVs and UTVs
  • Power Handling:
    • Peak: 270 watts per pair / 135 watts each
    • RMS: 90 watts per pair / 45 watts each
  • Recommended Power Range: 15 - 45 watts RMS per channel
  • IP65 rated - dirt and water resistant speakers
  • Tested to withstand salt-fog, UV and humidity
  • Made from non-resonant materials for clear highs, mids and lows
  • Dynamic Balance (DB) Technology
  • Polypropylene UV tolerant cone
  • Waterproof inner and outer surround
  • 0.75" shallow tweeter design
  • Top-mount Depth: 1.79"
  • Cutout Dimensions: 4.09"
  • 4 ohms impedance
  • Frequency Response: 60-22,000 Hz
  • Sensitivity: 90dB
  • Non-Corrosive Plastic Speaker Grilles included
  • Steel Mounting Hardware
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • Priced Per 2 Pair (4 Speakers)

Specifications & Details

Front Speaker Specifications
Speaker Grilles
2-way Coaxial
Woofer Composition
Peak Power Handling
135 watts
RMS Power Handling
45 watts
90 dB
Frequency Response
60 - 22000 Hz
Impedance (Per Voice Coil)
4 ohms
Top-Mount Depth (Mounting Depth)
Speaker Size
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:

DB402 2 Pack



Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

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Customer Reviews

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Sound good

The following review is for DB402, which is a part of the bundle you are viewing.

These speakers sound pretty good on my Electra glide. They are not as loud as I would like, but they are louder than I expected. Pretty good sound for only 4".

By Joe on May 24, 2017


found this helpful.

Great speaker

The following review is for DB402, which is a part of the bundle you are viewing.

10 out of 10 great sound out of these little speaker and tweeter are very crisp and detail...

By Ross on June 26, 2016


found this helpful.

Polk Audio DB 402

The following review is for DB402, which is a part of the bundle you are viewing.

Bought these speakers to replace Merrill speakers that kept shorting out they didn't last a year. I was blown away by the sound quality of these over the Merrill and these were about 20 dollars cheaper, they are now a year old and sound as good as when I bought them.
I am now a Polk audio fan!

By Ron on December 3, 2016


found this helpful.

Polk Audio DB402 Two Pack (DB 402)

Sounded decent for 4" speakers out in the open. I would recommend them.

By Anonymous on June 28, 2018 Checkmark Icon Verified purchase


found this helpful.

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