Polk Audio MM 842 DVC (MM842DVC) + Atrend 8SQV

900W Peak (300W RMS) 8" Subwoofer with Vented Box & Speaker Wire

Only 1 Left!

• 300 Watts RMS
• 900 Watts Max
• Composite Cone
• Santoprene surround
• Fiberglass-Reinforced ABS Basket
• IP56 Ultra Marine Certified
• Vented Pole and Basket Structure

Learn more about the mm842dvc_8sqv
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Polk Audio

Authorized dealer

Polk Audio MM 842 DVC (MM842DVC)

900W Peak (300W RMS) 8" MM1 Series Dual 4-Ohm Car Subwoofer
Quantity: 1

General Features:

  • 8" 4-ohm Dual-Voice Coil MM1 Series Subwoofer
  • Ultra-Marine Certified, perfect for cars, ATVs or on-the-water applications
  • Power Handling:
    • Peak: 900 watts
    • RMS: 300 watts
  • Composite Cone, stands up to water, dirt, salt and UV
  • Santoprene Surround
  • Built-in Fuse for extra protection for you subwoofer and entire sound system
  • Vented pole and basket increases cooling and power handling
  • Ultra-Marine IP56 Certified with water-proof surround and weep-holes to move water away from your bass
  • Fiberglass-reinforced ABS basket
  • Spring-loaded binding post terminals
  • Oversized dual voice coils
  • Top-mount depth: 4"
  • Cutout diameter: 7.2"
  • Frequency Response: 30 - 200Hz
  • Sensitivity: 85dB
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

  • Priced Individually

Check out the MM842 DVC Owner's Manual

Atrend 8SQV

8" Single Pro Series Vented Subwoofer Enclosure
Quantity: 1

General Features:
  • 8" Single Pro Series Vented Subwoofer Enclosure
  • Made in the USA
  • Completely miter and dado end panels
  • Premium carpeted finish
  • Silver spring loaded terminal cups
  • 3/4" MDF construction
  • Glued and braced with fasteners
  • Total box volume: 0.9 cubic feet
  • Dimensions: 15"D x 15"W x 12"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Belva BBSW127

12 Gauge 7 Meter (23 Ft) Speaker Wire (CCA)
Quantity: 1

General Features:

  • 12 Gauge Speaker Wire
  • High strand count for maximum flexibility
  • Ultra-flexible PVC blended jacket for easy installation
  • Packed in resealable bag
  • Length: 7m (23 Ft)
  • Also available in 16 Gauge
  • Authorized Internet Dealer
  • 1-year Sonic Electronix Warranty

Product history:

Polk Audio BBSW127,8SQV,MM 842 DVC thumbnail
(newest, current model)
Polk Audio MM840DVC thumbnail
(previous model, replaced by Polk Audio MM 842 DVC (MM842DVC) + Atrend 8SQV)
Polk Audio MM2084DVC thumbnail
(previous model, replaced by Polk Audio MM840DVC)

Specifications & Details

Subwoofer Specifications
MM1 (Polk)
Subwoofer Size
RMS Power Handling
300 watts
Peak Power Handling
900 watts
Woofer Composition
Composite Polypropylene Cone - CPPC
Woofer Surround
Santoprene Rubber
85 dB
Frequency Response
30 - 200 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Number of Subwoofers
Box Style/Shape
Wood Thickness
Number of Terminals
Terminal Type
Spring posts (banana clip ready)
Box Exterior Color
Box Finish
Enclosure Second Depth
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

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4 star
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1 star


Customer Reviews

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As expected

The following review is for BBSW127, which is a part of the bundle you are viewing.

Could have a better way to decide which wire to use as positive or negative. Only has spaced print on one wire.

By George on August 8, 2014


found this helpful.

beau produit

The following review is for BBSW127, which is a part of the bundle you are viewing.

Belva est une marque qui se rapproche de la marque stinger a premiere vue.bon produit.

By dimitry on December 1, 2013


found this helpful.

Great wire

The following review is for BBSW127, which is a part of the bundle you are viewing.

This is some great speaker wire looks good works good and you get so much for so cheap

By Shane on February 1, 2015


found this helpful.


The following review is for BBSW127, which is a part of the bundle you are viewing.

Great wire, for a great price! Love the color and looks very professional.

By Billy on March 31, 2015


found this helpful.

Still going strong...

The following review is for 8SQV, which is a part of the bundle you are viewing.

I recently upgraded to an Incriminator Audio I8 and decided to see if this box was still up to the challenge. It most certainly is!!! Strong, deep bass with the tightness of an 8" woofer - the best of both worlds and the box is small enough for me to continue using my trunk. All of my Atrend boxes are still going strong and this one looks like it will continue the trend. Great enclosure!

By Ken on September 29, 2014


found this helpful.

Perfect enclosure!

The following review is for 8SQV, which is a part of the bundle you are viewing.

I bought this box to house a Pyle PLPW8D. The woofer's ideal specs called for a 0.88 cu. ft. ported box, and this one measured out at 0.9 - close enough to give it a go. All of my Atrend boxes have lasted, and this looks like no exception. I have had issues in the past with boxes being delivered in subpar condition from other companies, but Sonic delivered this box in perfect condition. The box woke up my little 8-inch woofer and gave it a great sound. Compact enclosure with solid build quality, no air leaks and the carpet was a perfect match for my trunk. The spring plugs provide a secure fit for the wiring, and I am now using this setup to replace my shallow 10-inch sub setup (which I thought sounded good before I heard this). I never expected to get such good, loud bass from my $17 "budget" subwoofer, and it's all because of this enclosure. If the specs match up to your needs, you can't go wrong with this box.

By Ken on August 15, 2014


found this helpful.

Nice Budget Box

The following review is for 8SQV, which is a part of the bundle you are viewing.

Other than the fact I had to make slight modifications for my Sundown SA-8, this box came in great shape. I had it in a really crappy sealed box and was very disappointed in the performance of the box. So I bought this Atrend box and WOW! What a big difference! Great performance, great price. Would definitely recommend.

By Luke on November 7, 2014


found this helpful.


The following review is for 8SQV, which is a part of the bundle you are viewing.

I really like this box. The build quality is very good. I have a Kicker 8" sub in it and it really sounds great. Most people think I am running two 10's. This thing really puts out without being real "peaky" sounding. The port is tuned low, so it retains a lot of sound quality.

By SQ ACCORD on May 9, 2015


found this helpful.

Great value

The following review is for BBSW127, which is a part of the bundle you are viewing.

Definitely get your moneys worth! Would be even better to receive complimentary gifts.

By Cameron on August 2, 2020 checkmarkIcon Verified purchase


found this helpful.

Good value

The following review is for BBSW127, which is a part of the bundle you are viewing.

It’s listed as (cca) which is copper clad aluminum wire and is cheap and doesn’t hold up good to high wattage. Aluminum isn’t the best audio wire, but it is copper clad and electric signals travel on the outside of the wire and that’s where a multi strand wire would come in handy. I think it’s a judgment call, but I wouldn’t buy it.

By Anonymous on April 6, 2019


found this helpful.


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