Adire Audio Brahma 12″ D4 – 1000w RMS XBL2 Subwoofer

Adire Audio Brahma 12″ D4 – 1000w RMS XBL2 Subwoofer


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The Adire Audio Brahma 12″ has always been known as a legendary driver in the audio industry since the very inception of the namesake in 2002. At that point in time we were at the forefront of high excursion drivers pushing the envelope to truly linear excursion levels never seen before. Fast forward to 2019 and we have went back to the drawing board updating the designs to surpass current industry standards while utilizing Patented XBL^2 motor technology to carry on the legendary namesake of the Adire Audio Brahma.

For 2018 we started from scratch and went back to our roots on the original Brahma design which has been completely revamped from the ground up utilizing a dual stack of Y35 Grade ceramic ferrite magnets and a fully finite element analysis optimized motor structure. Now dubbed the Brahma Mark 2.5 we have successfully made the driver more compact than the original Brahma for the end user who may be concerned about mounting depth constraints, all the while improving the original legendary performance of the very first Brahma.

We’ve went back to the books on materials science and developed our own proprietary dual 8” progressive roll spider profile. We’ve tested many different blends of materials while developing our new spiders and have developed what we feel is the most durable and long life phenolic resin impregnated Nomex poly-cotton blend to date. This technology is just one small piece of the redesign puzzle which adds up to allow us to keep the Brahma Mark 2.5 as sound quality oriented as possible, without sacrificing overall SPL output.

The Brahma Mark 2.5 carries on the world-class sound quality and tonal balance of the original Brahma while still being able to pump out insane SPL output. Doing all of the above in such a clean fashion can only be achieved using XBL^2 motor technology which is why we have stuck to our roots and continued the tradition.

The 2018 Brahma Mark 2.5 is rated at 1000 watts RMS power handling and features a 3” diameter copper voice coil available in Dual 2 or Dual 4 ohm that will keep you enjoying your music at all levels of excursion and output for many years to come.

The Brahma Mark 2.5 is truly an audio enthusiasts dream and will bring out the bottom octaves in a truly unique style!

  • Patented XBL^2 Linear Motor Technology
  • Hi Temp 3” Flat Wound Copper Voice Coil
  • Non Pressed Paper Cone With Poly Dust Cap
  • Heavy Duty Lead Wires Interwoven into Spiders
  • Y35 Ferrite Magnet Motor Structure w/ Vented Pole
  • Dual Progressive Spiders
  • 1000W RMS Power Rating

Adire Audio Brahma 12″ Specifications

Coil Dual 2 or Dual 4
(VC wired in series)
Fs 27.30 Hz | 27.84 Hz
Re 3.21 Ohm | 6.77 Ohm
Qms 6.12 | 6.57
Qes .46 | .45
Qts .42 | .42
Le 3.00 mH
1.50 mH per coil
Mms 256.85 g | 247.26g
Cms .13 mm/N
Sd 481.69 cm^2
Vas 43.60 L | 43.54 L
SPL D2: 84.60 dB @ 1W/1m
D4: 84.94 dB @ 1W/1m
Bl 17.54 Tm | 25.51 Tm
Xmax 28 mm (One Way)
RMS 1000W – RMS

Adire Audio Brahma 12″ Box Info

Overall Diameter 12.50″
Cutout Diameter 11.125″
Mounting Depth 7.625″
Driver Displacement .13 ft^3
Sealed Enclosure QTC .65 – 1.10 ft^3
QTC .7 – .87 ft^3
QTC .8 – .59 ft^3
Ported Enclosure Range – 1.75-2.25 ft^3
Daily – 1.75-2.0 ft^3 @ 32hz
Daily Port Area: 28-32 sq in
SQ – 2.25 ft^3 @ 28hz
SQ Port Area – 32-36 Sq Inches
Shipping Weight 35 LBS

We are proud to be an authorized Adire Audio Dealer!

Additional information

Weight 35 lbs
Dimensions 15 × 15 × 15 in



Subwoofer Impedance

Subwoofer RMS Rating

Subwoofer Size

Voice Coil Diameter


Subwoofer Wiring


Number of Speakers:
Impedance per Voice Coil:
Number of Amps
Do some calculations to find the
Final impedance per amplifier


Calculator curtesy of the Ultimate Car Audio App


All warranties must go through Adire Audio directly. Their warranty policy is as followed:


Adire Audio warrants this product to be free from defects in material and workmanship under normal use for a period of 1 year from date of original purchase with receipt. In all cases you must have the original receipt! Should service be necessary under this warranty for any reason due to manufacturing defect or malfunction during the warranty period, Adire  Audio will repair (at its discretion) the defective merchandise at no charge.
This warranty is valid only for the ORIGINAL PURCHASER and is not extended to owners of the product subsequent to the original purchaser. Any applicable implied warranties are limited in duration to a period of the express warranty as provided herein beginning with the date of the original purchase at retail, and no warranties, whether express or implied, shall apply to this product thereafter. Some states do not allow limitations on implied warranties; therefore these exclusions may not apply to you. This warranty gives you specific legal rights; however you may have other rights that vary from state to state.

Defective merchandise should be returned to Adire Audio for warranty. Please contact the sales department for a Return Authorization (RMA) number. Package all defective items in the original container or in a package that will prevent shipping damage. Failure to return the merchandise in its original packaging will result in a new packaging/handling charge being processed at the time the product is shipped back to you. The RMA number must be clearly marked on the outside of the package. Freight must be prepaid; items sent freight collect, or COD, will be refused. If the product sent for warranty service is found defective under our warranty policy, we will return the product freight prepaid to you. If the product is not covered under warranty, you will be notified of the repair and shipping costs and said costs must be paid before any service is made on the product.

Failure to follow these steps may void your warranty. Any questions can be directed to the sales department.


  • This warranty is valid only if the product is used for the purpose for which it was designed.* (outside of arriving in proper working condition after shipping)
  • Damage due to improper installation.
  • Subsequent damage to other components.
  • Exposure to moisture, excessive heat, chemical cleaners, and/or UV radiation.
  • Negligence, misuse, accident or abuse.
  • Repeated returns for the same damage will be considered abuse.
  • Any cost or expense related to the removal or reinstallation of product.
  • Speakers damaged due to amplifier clipping or distortion.
  • Burnt or open voice coils.
  • Ripped, torn, or burnt spiders, lead wire, cones, or surrounds.
  • Items previously repaired or modified by any unauthorized repair facility.
  • Return shipping on non-defective items.
  • Products returned without a Return Authorization (RMA) number.
  • Freight Damage.
  • The cost of shipping products to Adire Audio.
  • Service performed by anyone other than Adire Audio or an affiliated repair facility.

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