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Massive Audio Powered Car Subwoofer BOOM88 Car Woofer Under Seat Slim Hideaway - Low Profile Compact Underseat Woofer with Amazing Sound - Built in Amplifier, 8 Inch 400 Watt, Gain Remote Include

  • Based on 69 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Massive Audio Direct

Arrives May 24 – May 31
Order within 22 hours and 6 minutes
Available payment plans shown during checkout

Size: BOOM88 8" 400 Watts


Features

  • Perfect for trucks or cars with limited space the Massive Audio BOOM 88 Powered Hideaway Subwoofer displays a fine balance between high performance, accurate sound reproduction and reliability!
  • This easy to install car audio active subwoofer will provide the perfect amount of clean yet powerful bass to your system.
  • Additional features like ATO (automatic turn on) lets you tap into the cars speaker leads with the optional UW-1 (High level RCA adapter) or HI-LOW (high low converter) instead of using the headunits RCA's and will automatically turn on the unit when the car's radio is on.
  • Add a 180 degree phase shift and bass boost; what else can you ask for in an active subwoofer. GAIN REMOTE INCLUDED!

Brand: Massive Audio


Model Name: GTR84


Speaker Type: Floorstanding


Connectivity Technology: RCA


Special Feature: Dual Stacked High Flux Y30 120oz Strontium Ferrite Magnets


Recommended Uses For Product: ‎Indoor


Subwoofer Diameter: ‎8 Inches


Mounting Type: ‎Floor Standing


Unit Count: ‎1.0 Count


Controller Type: ‎Remote Control


Product Dimensions: ‎11"D x 11"W x 11"H


Audio Output Mode: ‎Mono


Speaker Maximum Output Power: ‎600 Watts


Frequency Response: ‎90 Hz


Is Waterproof: ‎FALSE


Number of Items: ‎1


Control Method: ‎Remote


Speaker Size: ‎8 Inches


Power Source: ‎Corded Electric


Package Type: ‎Standard Packaging


Subwoofer Connectivity Technology: ‎Wired


Manufacturer: ‎Massive Audio


Item Weight: ‎12.38 pounds


Item model number: ‎8523720715


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎BOOM88


Special Features: ‎Dual Stacked High Flux Y30 120oz Strontium Ferrite Magnets


Wattage: ‎400 watts


Date First Available: July 8, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 24 – May 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • If you want extra bass for your factory stereo, this is perfect!
Size: BOOM88 8" 400 Watts
I was looking for something for the family car that would play deep and provide bass my car was missing. I didn’t know what to expect for $100 but I have used Massive products in the past and always liked them. It is built well. Black brushed aluminum top plate. All of the connections were on one side, and the two sides had ribs to help vent the heat for cooling. I like the fact that you don’t need to use the RCA’s from the radio (just spliced the speaker leads) since I really didn’t want to mess with my dash. Easy install that fit perfect under the front seat, and nice to get a bass remote in the box too. I played a multitude of tracks on it, and was surprised at how good it sounded for its size. Thought about a 10 inch but I think the 8 inch speaker is the perfect size for the small air space. Quick bass beats were fast, dynamic and didn't miss a beat while playing with good authority. Deeper beats still had good impact, punch and low end extension. Extended beats had a nice full extended low pitch definition that only sounded a little muddy when pushed really hard. It had enough output to complement the stock radio and fill the car with quality deep bass but not be overpowering. In the end, it was just what I was looking for. I personally prefer at least a 1000 watt woofer in a ported box for my car, but that’s too much for my wife and family. This was just perfect for them, and I also enjoy having more than just factory bass in the car when I drive it with them. If you are looking to complement your current factory or basic aftermarket system with some deeper bass, this is something I would recommend in a heartbeat. ... show more
Reviewed in the United States on August 28, 2018 by Nova Roy Nova Roy

  • DoA
Size: BOOM88 8" 400 Watts
Appears to be dead on arrival. I will try a new cable and see if it works. The power LED is illuminated but no sound. The fault LED is extinguished. Not sure why it is not working. Alpine head unit is less than a year old and is driving the other speakers just fine. Update: changed the RCA cable and verified power. This is inop. RMAed. Amazon refunded the purchase price. I noticed this unit has been relabeled and is being sold under another name now. This generic Chinese made garbage needs to be removed from the site. ... show more
Reviewed in the United States on September 17, 2018 by Mauricemk

  • Just enough bass to make it sound good
Size: BOOM88 8" 400 Watts
Small and compact, sounds good
Reviewed in the United States on March 18, 2019 by kenneth mineau II

  • Love this subwoofer
Size: BOOM88 8" 400 Watts
This subwoofer is the best. Perfect deep base. I like the fact that I can adjust the volume on the unit. Very good buy.
Reviewed in the United States on March 20, 2020 by Raymond M. Pennant

  • Good item
Size: BOOM88 8" 400 Watts
Kind of bulky for my taste . Good material
Reviewed in the United States on March 3, 2019 by Alma L.

  • Don't let the size fool you!
Size: BOOM88 8" 400 Watts
This is one awesome amp!! It packs a nice punch that will enhance any audio system. I was skeptical at first sight thinking, ok this may give me a little bit of bass but, Wow was I wrong! Don't let the size fool you. It sounds great! I installed this Sub in my truck with an older Kenwood head unit and some 6.5" Infinity coaxials in the doors and rear cab and was amazed at the enhanced sound that I was hearing. It actually gives your audio a much fuller sound. Connecting the amp was straight forward. Read and Follow the instructions provided and you can't go wrong... Just buy it!! ... show more
Reviewed in the United States on September 4, 2018 by MarkBNC

  • Disappointed... like my parents always were
Size: BOOM88 8" 400 Watts
I bought this just to have a little bass in my truck to listen to my music with. Didn’t expect much so it was ok for a while. My return window closed and a few days later boom it just stops working. The fuses didn’t even blow? I have done everything to get it operational to no avail. Just save up and buy something stronger. ... show more
Reviewed in the United States on April 29, 2020 by Dustin

  • Must have it under your front seat to hear it
Size: BOOM88 8" 400 Watts
Sounds okay
Reviewed in the United States on April 1, 2020 by Edwin l.

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