At Massive Audio, we aim to make unique designs to solve different challenges in audio. For example, we approached the 10” & 12” shallow mount subwoofer market with the very cool UFO series. But what if you needed even more extreme space savings with a smaller sub, while still having great bass in your ride? Our all new Massive Audio SUMMO84S is an innovative approach to that solution.

What makes the SUMMO84S special, yet unique in design you ask? Well it's all in that new motor and new basket. The SUMMO84S is taking the approach of reducing the height of the motor by reducing the height of the magnets. But don’t worry, we make up for it by increasing the outer diameter. That way no motor strength is lost, yet mounting depth is improved. We also moved the SUMMO84S to a solid pole motor design to increase motor strength even more by adding steel inside the motor. Your first thought might be, wait, doesn’t that affect the cooling? Sure it does, that is why we went with a new basket design that employs loads of side vents for air flow out of the motor to keep the voice coil nice and cool under intense bass notes. A benefit of the solid pole with no rear motor vent means you can go super shallow with the SUMMO84S as it does not need airspace behind the motor to stay cool.

Now, you might notice there is a hex head screw in the back of the motor. No, that is not to take the SUMMO84S apart. That hex head screw is to take the efficiency of the SUMMO84S up another notch. When a subwoofer is playing deep notes, often baffles can flex and that causes output loss if there is enclosure flexing. You want all of the output coming from the cone and port, not lost or wasted in the box flexing. All of this means, you can physically mount the SUMMO84S not only to the front baffle of the enclosure, but also to the rear of the enclosure. You can do this by running that hex head screw through the back of the enclosure, into the back of the subwoofer motor. This will mechanically lock everything into place much more rigidly without it. You see, special and unique.

The SUMMO84S shares vital performance parts from 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 and shallow mount subwoofer that can keep up with the big boys.

Features:

• Shallow Mount Design via Sealed Backplate & Customized Vented Cast Basket
• Bolt-To-Box Machined Hex Screw on Magnet Backplate for Maximized Bass via Reduced Box Flexing
• Optimized Spider & High Rolled Edge for Superior Bass Reproduction
• Kevlar Fiber Enhanced Non-Pressed Paper Cone
• 4-Layer Hi-Temp Voice Coil
• Fiberglass Woven Dust Cap
• Double Stacked 66oz High Energy Strontium Ferrite Magnets
• Enhanced Cooling T-yoke Design with Black Anodized Finish
• Customized Rubber Gasket and Magnet Boot
• 100% Pure Copper Cables with Direct Lead Connection
• Triple Black Poly Cotton Spiders with Mirror Image Layout

Specifications:

• Size: 8"
• Peak Watts: 800
• RMS Watts: 400
• Cone: Non-Pressed Paper
• Voice Coil: 2" Dual 4 Ohm
• Surround: Tall and Narrow Foam
• Magnet: 66oz Strontium
• Terminals: Heavy Duty Direct Input Wires Connection
• Basket: Cast Aluminum
• Tinsel Leads: Heavy Duty Triple
• X-Max: 9mm
• SPL: 86dB
• Ported Box: 1.097cuft. (Small) - 1.469cuft. (Large)
• Sealed Box: 0.974cuft.. (Small) - 1.319cuft. (Large)

Measurements:

• Mounting Depth: 4.45"
• Mounting Diameter: 8.66"
• Baffle Cut-out: 7.32"

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Saint Cloud, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at dbscaraudiofl@gmail.com.

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.