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Massive Audio SUMMO 84

8" 600W Dual 4 Ohm Car Audio Subwoofer

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• Peak Power: 600W
• RMS Power: 300W
• Kevlar Fiber Enhanced Non-Pressed Paper Cone
• EROM Foam Surround with Red Stitching

Learn more about the summo84

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

summo84xl thumbnail

Massive Audio SUMMO84XL

OUR PRICE: $129.99

View item

Product Highlights


• Peak Power: 600W
• RMS Power: 300W
• Kevlar Fiber Enhanced Non-Pressed Paper Cone
• EROM Foam Surround with Red Stitching

Description


Massive Audio brand icon

Authorized dealer

General Features:

  • 8" Dual 4 ohm Summo Series Subwoofer
  • Power Handling:
    • Peak: 600 watts
    • RMS: 300 watts
  • Kevlar fiber enhanced non-pressed paper cone
  • EROM foam surround with red stitching
  • 2" 4-layer hi-temp voice coil
  • Fiberglass woven dust cap
  • 16 Gauge power cable with direct lead connection
  • Double stacked 120oz high energy magnets
  • Top-mount depth: 5.04"
  • Sensitivity: 91.36dB
  • 1-year Manufacturer's Warranty

Product history:

Massive Audio SUMMO84XL thumbnail
(newest, current model)
Massive Audio SUMMO 84 thumbnail
(previous model, replaced by Massive Audio SUMMO84XL)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Massive Audio SUMMO 84 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Massive Audio SUMMO 84 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Massive Audio SUMMO 84 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Massive Audio SUMMO 84 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Specifications & Details


Subwoofer Specifications
Series
Summo Series
Subwoofer Size
8"
Peak Power Handling
600 watts
RMS Power Handling
300 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohms
Voice Coil Diameter
2"
Sensitivity
91.36 dB
Xmax (millimeters)
10 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Non-Pressed Paper
Woofer Surround
Foam
Magnet Structure
Double Stacked
Recommended Enclosure Specifications
Minimum Sealed Box Volume
0.42 cubic feet
Optimum Sealed Box Volume
0.75 cubic feet
Minimum Ported Box Volume
0.50 cubic feet
Optimum Ported Box Volume
0.75 cubic feet
Top-Mount Depth (Mounting Depth)
5.04"
Cutout Diameter
7.24"
Electromechanical Parameters
Free-Air Resonance (Fs)
37.85 Hz
Equivalent Compliance (Vas)
15.12 liters
Total Speaker Q Value (Qts)
0.399
Electrical Q Value (Qes)
0.449
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SUMMO 84

Weight:

12.50lbs

Internal SKU:

summo84

Internal Product ID:

74657

Product and How-to Videos


  • Dalek Massive @ Massive Audio Booth | CES 2014
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?

Customer Ratings & Reviews



5 star
90%
4 star
10%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
5
Features
4.9
Design
4.8
Usability
5

Customer Reviews

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Awesome Sub

Running one of these in a 1.3 cubic foot ported enclosure with about 650 watts RMS running to it and it hammers. Output is comparable to a 12. Amazing bang for the buck.

By XS2500 on February 10, 2014

28

found this helpful.

Ridiculous sub!

Built a .75 cubic foot vented enclosure for this beast and ran roughly 650watts rms to it and it absolutely hammers! Output could easily be compared to a 12".

By Kiley on April 2, 2014

25

found this helpful.

Not installed yet but...

Looks and feels like a hard hitting little subwoofer. Comparable to the sundown e8 I have so if it performs anywhere near as good as that, I’d say it’s 5 stars. Can’t beat the $80 sale price

By Andrew on January 24, 2020 Checkmark Icon Verified purchase

8

found this helpful.

Nice sounding sub!

I have one of these in a .75 cu. ft. ported box built to the specs in the owner's manual. It can certainly handle 300 watts, and it is built to take a little more than that. The sub does not feel cheap at all. A big magnet and the stitching on the surround are nice touches, and the pushbutton terminals can handle 12 AWG wire very well. If you like to hear the lows, this is a good option for rap, jazz, and country music.

By Anonymous on May 27, 2019

7

found this helpful.

beast of a 8 inch

this Is not your everyday 8 inch subwoofer. It has the output of a 12 the weight of a 8 and is compact best 8 inch ever

By Pam on November 11, 2015

7

found this helpful.

Excellent

Took a bit to get this sub but the sound is amazing in my center console in my Jeep.

By Anonymous on July 27, 2018

6

found this helpful.

Amazing sub

This sub is a killer deal. Takes barely any space, hits hard, hits deep(for an 8) and sounds tight. I've had 12s, 10s, and now this 8 and I can definitely say I'm impressed with the quality.

By Darryl on February 27, 2017

6

found this helpful.

Massive Audio SUMMO 84

Bought one of these to put in my 2016 Frontier. Built a custom box for under the rear seat, worked out to be around to be .72 cubic foot of airspace (with speaker),putting around 300 watts to it. Running sealed box 4 a change, it hits hard and pretty low on different styles of music. Would definitely recommend this to anyone! Not a lot of airspace needed for good bass!!

By Anonymous on July 20, 2018

5

found this helpful.

Awesome

I have 2 of these in a ported box and I must say I am very satisfied. I'm used to running bigger subs but I wanted some space back in my car. These perform better than any larger sub I've owned and make my rear view mirror useless. Friends have even questioned if I'm really only running 8s and then I show them. Super fast shipping from Sonic also.

By Craig on December 24, 2015 Checkmark Icon Verified purchase

5

found this helpful.

Massively Loud!

My setup:

2012 VW GTI 4-door
Front: Polk DB+ DB5252 5-1/4" Component System
Back: Polk DB+ DB6502 6-1/2" Component System

Subs: x2 Massive Audio SUMMO 84 (8" dual 4 ohm VC) wired to 1 ohm
https://www.sonicelectronix.com/item_74657_Massive-Audio-SUMMO-84.html

Enclosure: Atrend 8DQV
https://www.sonicelectronix.com/item_81275_Atrend-8DQV.html

Sound Processor:
AudioControl LC7i 6-Channel Factory Integration Unit

Amp:
Soundstream T5.2500DL
https://www.sonicelectronix.com/item_94458_Soundstream-T5.2500DL.html


These 8" Massive subs in the Atrend box absolutely slam! They're wired to 1 ohm so combined they will accept 600 RMS. The amp is feeding them 750 at 1 ohm and I am impressed. No one who is unfamiliar with my setup believes that there are a pair of 8's in the hatch until I show them. Of course it is not panel shaking, entire car rattling, rearview mirror breaking bass, but you can certainly appreciate what these subs can do with their compact size. Of course, when you have something good you want bigger and better. I am thinking of getting a pair of 10" or a single 12". We shall see but I would definitely recommend these Massive's! I have been running the subs and mono channel on the Soundstream amp for about a year and just had the doors and sound processor done on 4/8/2019.

By Anonymous on April 12, 2019 Checkmark Icon Verified purchase

5

found this helpful.

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