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MTX Thunder8000 T8124A
12" 4-ohm Component Subwoofer
Item # 236T8124A | MFR # T8124A
This item is no longer available.
Our take on the MTX Thunder8000 T8124A by Crutchfield's Steven Johnson
MTX's competition-level Thunder8000 T8124A 12" subwoofer is a showcase of high performance and dynamic sound. The strontium ferrite magnet alone weighs in at a mighty 102 ounces! This heavyweight unloads some of the biggest bass that MTX has to offer.
The T8124A demonstrates its strength in every facet. 12 polished ribs increase rigidity and fortify the mica-filled poly cone with aluminum finish against incredible sound pressure. The T8124A also features a sturdy 12-leg, die-cast aluminum basket for an extra-stable structure. A durable black NBR (Nitrile Butadiene Rubber) surround fends off moisture and temperature extremes for long-term speaker accuracy.
A four-layer 2-1/2" voice coil keeps this sub nice and cool, even when the music is raging. Spider plateau venting small vents around the frames also helps dissipate hot air and curb distortion.Details:
- asymmetrical linear drive system (ALDS) spreads stress evenly across the suspension for high output with low distortion
- mica-filled poly cone with aluminum finish has 12 stiffening ribs for extended power handling
- one-piece gasket/surround made of thermal-pressure-formed Nitrile Butadiene Rubber (NBR) for superior sonic accuracy and greater overall durability
- extended pole piece for a more symmetrical magnetic field and smoother sound
- computer-optimized five-roll spider design combines extreme excursion with exceptional linearity, for maximum output and minimum distortion
- die-cast aluminum basket resists sound-altering resonance without pulling electromagnetic energy from the magnet as a steel basket can
- heavy-duty, gold-plated push-type speaker terminals provide extra-secure connections, ensure maximum signal integrity, and resist corrosion
- frequency response 23-150 Hz
- power range 75-400 watts RMS
- peak power handling 800 watts
- sensitivity 85.8 dB
- top-mount depth 5-9/16"
- sealed box volume 1.0 - 2.0 cubic feet
- ported box volume 2.0 - 3.0 cubic feet
- Recommended Q-Logic Box Type: 2, 3
- 1-year warranty
Priced per speaker
Features and Specs
|Cone Material||Mica-filled poly|
|Surround Material||Nitrile Butadiene Rubber|
|Ideal Sealed Box Volume (cubic feet)||1|
|Ideal Ported Box Volume (cubic feet)||2|
|Port diameter (inches)||4|
|Port length (inches)||18|
|Dual Voice Coil||No|
85.8 dB at 1 watt |
|Frequency Response||23 - 150 Hz|
|RMS Power Range (Watts)||75-400|
|Peak Power Handling (Watts)||800|
|Top Mount Depth (inches)||5 11/16|
|Bottom Mount Depth (inches)||6 1/4|
|Cutout Diameter or Length (inches)||11 3/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Cone Cosmetics and Materials: The woofer cone is made of Mica-filled polypropylene with an aluminum finish with 12 stiffening ribs for improved cone stiffness and higher mechanical power handling; the ribs increase cone durability and performance. Concentric rings are molded into the cone and dust cap surfaces to give them a machined appearance. "MTX Audio" is embossed on the poly dust cap.
12-leg Die Cast Aluminum Basket: The basket was built with the strength and stiffness required to handle the demands of enormous bass without flex or distortion.
Oversized Magnet Structure: This woofer has an oversized magnet structure, made with a 102 oz. Strontium Ferrite magnet.
NBR Rubber Surround: The woofer is made with a one-piece NBR (Nitrile Butadiene Rubber) surround and gasket combination. When bottom-mounting the woofer, the one-piece surround and gasket make an air-tight seal, to prevent any loss of performance due to air leaks around the woofer. When the woofer is top-mounted, the one-piece surround and gasket combination enhances the overall cosmetic appearance of the woofer. NBR has the added benefit of being resistant to ozone and UV rays for extreme durability.
Computer Optimized Progressive Roll Spider (COPR): A "five roll" spider design is used to maximize the linear region of the speaker's movement.
Four-layer Voice Coil: A 2.5" four-layer voice coil is used for higher power handling.
Spider Plateau Venting: Small vents are located around the base of the frame to prevent hot air from being trapped between the spider and the back plate. The vents help cool the voice coil to increase power handling and reliability.
Asymmetrical Linear Drive: This system improves linearity and permits high output with low distortion.
Extended Pole Piece: The extended pole piece provides a more symmetrical magnetic field.
Spring Post Inputs: The inputs are spring post connectors that will accept bare wire, tinned wire or wire terminated with pin connectors.
Enclosure Compatibility: This woofer can provide extended bass in sealed, vented and bandpass enclosures (see below for more information on enclosures).
Recommended Sealed Box Volume: The sealed box sizes recommended by MTX range from 1.0 cu/ft to 2.0 cu/ft. The sealed enclosure MTX highlights on their spec sheet is a 1.0 cu/ft enclosure.
Vented Box Volume: The vented box sizes recommended by MTX range from 2.0 cu/ft to 3.0 cu/ft. The vented enclosure MTX highlights on the woofer specification sheet is a 2.0 cu/ft enclosure with a 4" diameter x 18" long port having a tuning frequency of 30 Hz.
Single Reflex Bandpass Volume: The bandpass box sizes recommended by MTX range from 1.13 cu/ft to 1.99 cu/ft. MTX highlights two bandpass enclosures on the woofer specification sheet. One highlighted enclosure has an "S" value of 0.5 and the other highlighted enclosure has an "S" value of 0.6. The highlighted bandpass enclosure with an "S" value of 0.5 is a 1.33 cu/ft enclosure with a sealed chamber volume of 0.4 cu/ft, a vented chamber volume of 0.54 cu/ft and two 4" diameter x 18.75" long ports. The enclosure with an "S" value of 0.6 is a 1.59 cu/ft enclosure with a sealed chamber volume of 0.48 cu/ft, a vented chamber volume of 0.78 cu/ft and two 4" diameter x 14.75" long ports.
Note: The bandpass enclosure with the higher "S" value produces a more narrow bandwidth with better transient response; the enclosure with the lower "S" value produces a wider bandwidth at the expense of transient response.
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