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Massive Audio SUMMO64XL

400W Peak (200W RMS) 6.5" Summo Series Dual 4-ohm Car Subwoofer

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• Peak Power: 400 watts
• RMS Power: 200 watts
• Kevlar Fiber-Enforced Non-Pressed Paper cone
• EROM Foam with red stitching surround
• Impedance: Dual 4 ohm
• Mount depth: 4.37"
• Sensitivity: 85 dB

Learn more about the summo64xl
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List price $134.99
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Current Promotions (1 offer)


Get a Free roll of Belva 16 Gauge Speaker Wire. Simply click the "Add Both to Cart" button and you will see your savings at checkout. This offer cannot be combined with any other coupons or offers.

Massive Audio SUMMO64XL

100% off


Priced separately $102 98

Promo Savings of $12 99

Total price:

$89 99

Description


Massive Audio brand icon

Authorized dealer


Massive Audio SUMMO64XL

The SUMMO64XL shares vital performance parts from the bigger models in the SUMMOXL line, such as the Kevlar Fiber enhanced non-pressed paper cone and OFC direct leads. In addition, a 4-layer, high temperature voice coil, fiberglass woven dust cap, a high roll surround, and triple black poly cotton spiders with a mirror image layout. All of the DNA from the SUMMOXL line, mixed with the innovative motor design, adds up to a very strong approach to a compact subwoofer that can keep up with the big boys.

Massive Audio SUMMO64XL is a high-performance car subwoofer that delivers powerful and punchy bass. With its dual 4-ohm voice coils, the SUMMO64XL allows for flexible wiring options and compatibility with a wide range of amplifier setups. With its oversized 110 oz. ferrite magnet and high-temperature aluminum voice coil ensure reliable performance, even under demanding conditions.


Product Details:

  • 6.5" Dual 4 ohm Summo Series Subwoofer
  • Power Handling:
    • Peak: 400 watts
    • RMS: 200 watts
  • Kevlar Fiber-Enforced Non-Pressed Paper cone
  • EROM Foam with red stitching surround
  • 10 mm Xmax
  • 1.5" High Temperature Aluminum Voice coil
  • 55 oz. Double Stacked Ferrite magnet motor structure
  • Heavy duty rugged industrial textured cast aluminum basket
  • Black anodized voice coil former with Kevlar spun lace
  • Oversized mirror image dual poly Nomex spiders
  • Black anodized one piece pole-plate for added motor force
  • Heavy duty direct input wire connection to voice coil
  • Reinforced fiberglass woven dust cap for high power application
  • Custom tooled rubber gasket and magnet boot
  • Resonance Frequency (Fs): 63.596 Hz
  • Sensitivity: 85 dB
  • Recommended sealed box volume: 0.45 cubic feet - 0.65 cubic feet
  • Recommended ported box volume: 0.6 cubic feet - 0.85 cubic feet
  • Top-mount depth: 4.37"
  • Cutout diameter: 5.94"
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Individually

PDF IconMassive Audio SUMMO64XL owner’s manual

Product history:

Massive Audio SUMMO64XL thumbnail
(newest, current model)
Massive Audio SUMMO 64 thumbnail
(previous model, replaced by Massive Audio SUMMO64XL)

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Massive Audio SUMMO64XL Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Massive Audio SUMMO64XL 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 SUMMO64XL Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Massive Audio SUMMO64XL Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
Summo Series
Subwoofer Size
6.5"
Peak Power Handling
400 watts
RMS Power Handling
200 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Material
Aluminum
Voice Coil Diameter
1.5"
Sensitivity
85 dB
Xmax (millimeters)
10 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Kevlar Fiber-Enforced Non-Pressed Paper
Woofer Surround
Foam
Magnet Structure
Double Stacked
Magnet weight
55 oz.
Magnet Type
Ferrite
Subwoofer Grille
No
Re-Cone Kit Available
No
CTA-2031 Compliant
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Minimum Sealed Box Volume
0.45 cubic feet
Maximum Sealed Box Volume
0.65 cubic feet
Minimum Ported Box Volume
0.6 cubic feet
Maximum Ported Box Volume
0.85 cubic feet
Top-Mount Depth (Mounting Depth)
4.37"
Cutout Diameter
5.94"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
63.596 Hz
Equivalent Compliance (Vas)
2.552 liters
Total Speaker Q Value (Qts)
1.588
Electrical Q Value (Qes)
1.945
Electrical Resistance of Voice Coil (Re)
3.2 ohm
Mechanical Q Value (Qms)
8.642
What is in the box?
Paperwork
User manual
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

SUMMO64XL

Weight:

7.00lbs

Internal SKU:

summo64xl

Internal Product ID:

180797

Customer Ratings & Reviews


Massive Audio SUMMO64XL thumbnail image

5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Serious sound in small package

I ordered one of these just to test them out. I built a ported enclosure to the manufacturer specs. This little guy blew away everyone who heard it and swore it was a larger subwoofer. At one point I decided to put my 1200 RMS amplifier to it, do not recommend, it withstood two songs with only a small hint of clipping. after I let it cool down I continued to use it regularly with no issues. Wonderful little subwoofer.

By CmfB on January 7, 2021

41 found this helpful


Great in-home subs I'm using

These are great, I'm using them in my lounge room, they add terrific balance with my 6.5.

By Jay on August 3, 2023 Checkmark Icon Verified purchase

27 found this helpful


Massive 6 1/2 thumpers !

I am familiar with car audio, 40 years or so. I have not tried these speakers yet, but I will. I will get 2 more for a build. Decent four channel amp to push them. I will push these buggers and see what they can take.
Sonic electronics is my go-to place. I have and will continue to buy from them.

By Angel on August 29, 2024 Checkmark Icon Verified purchase

2 found this helpful


6.5 subs

Fun little subs not terribly loud but definitely move a ton

By Shane C on April 29, 2026 Checkmark Icon Verified purchase



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