BOA121 - 12" 6,000 WATTS RMS DUAL 1 OHM MEGA SUBWOOFER — Big Jeff Audio Dealer Platform
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Massive Car Audio 12? Mega Subwoofer 12000 Watt Dual 1 Ohm Voice Coil BOA121

Built for High Performance SPL the BOA Series subwoofers are Dual 1 Ohm at 6,000 Watts RMS & 12,000 Watts MAX. The BOA 121 uses 4? Dual Impedance Black Anodized Voice Coil Formers with Kevlar Spunlace. Supports a custom tooled rubber gasket and magnet boot with Massive high energy triple stacked 470oz Strontium magnets. They are bolted into heavy duty rugged industrial textured cast aluminum baskets that help achieve 88.9 dB efficiency SPL@2.83v/m.

- Heavy Duty Rugged Industrial Textured Cast Aluminum Basket.
- Kevlar Fiber Reinforced Non-Pressed Paper Cone with Industrial Textured Finish.
- EROM Foam Surround with Red Stitching.
- 4? Dual Impedance Black Anodized Voice Coil Former With Kevlar Spunlace.
- Reinforced Fiberglass Woven Dust Cap.
- High Energy Triple Stacked 470oz Strontium Magnets.
- Over Sized Mirror Image 6 Layers Poly/Nomex Spiders.
- Black Anodized One Piece Pole-Plate for added Motor Force.
- Triple Black Poly Cotton Spiders with Mirror Image Layout.
- Heavy Duty Pure Copper Direct Input Wires Connected to each Voice Coil.
- Custom Tooled Rubber Gasket & Magnet Boot.
- Dual 1 Ohm Impedance.

This listing includes:
(1) Massive Audio 12? Mega Subwoofer BOA121

Nominal Diameter: 12?
Nominal Impedance: Dual 1 Ohm
MAX Power Handling: 12000 Watts
RMS Power Handling: 6000 Watts
SPL (2.83V/1m): 88 dB

Voice Coil Diameter: 4?
Voice Coil Former Material: Black Anodized Former With Kevlar Spunlace
Cone Material: Non-Pressed Paper
Surround Material: EROM Foam with Red Stitching
Basket Material: Die Cast Aluminum
Basket Color: Black
Magnet Material: Strontium
Magnet Weight: 470 Oz

Equivalent Volume: Vas - 11.8L
Excursion: X-max - 25mm
Free Air Resonance: Fs - 39Hz
Mechanical Factor: Qms - 7.08
Electrical Factor: Qes - 1.06
Total Factor: Qts - 0.92
DC Resistance: Re - 0.9 Ohms
Moving Mass: Mms - 401.2g
Compliance: Cms - 40.7?m/N
Force Factor: BL - 9.2Tm
Voice Coil Inductance: Le - 0.57mH
Diaphragm Area: Sd - 0.045m?

Sealing Internal Volume: 2.77FT? Small / 3.48FT? Large
Sealed Internal Dimensions (Width x Height x Depth): 17?x16.6?x17?
Ported Internal Volume (Width x Height x Depth): 18.1?x16.6?x17?
Port Tunning Frequency: Fb - 35Hz
Port round (DxL): 4.72?x9.98?
Port Area: 17.52??
Dual Sub Ported Box Volume: 5.41FT?
Dual Sub Ported Box Internal Volume (Width x Height x Depth): 33.1?x16.6?x17?
Dual Sub Port Sq Area: 17.52??
Dual Sub Ported Fb: 35Hz

Overall Diameter: 12.48?
Front Mount Baffle Cutout: 11.02?
Mounting Depth: 10?
Displacement: 0.232FT?
Unit Weight: 77.2 lbs.

Payment Information


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All orders over $500 will require a signature for delivery.

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valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

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U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
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20% restocking fee.

If package is refused or marked undeliverable and returned
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minus the cost of shipping


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Look for a notice of attempted delivery

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If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.