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MTX Thunder 4000 T4124A
12" 4-ohm Component Subwoofer
Item #: 236T4124A
This item is no longer available.
MTX Thunder 4000 T4124A
Our take on the MTX Thunder 4000 T4124A by Crutchfield's Steven Johnson
MTX believes that entry-level should mean great performance. To that end, they built the Thunder4000 T4124A 12" subwoofer with a sturdy laminated paper cone and heavy-duty magnet to deliver killin' bass. The treated foam surround offers high resistance to wear and tear from heat and humidity.
The T4124A incorporates MTX's Asymmetrical Linear Drive System (ALDS), which uses an extended vented pole piece to smooth out the cone's linear motion and a flat, progressive spider for improved suspension. Extended cone excursion with greater control means bone-crushing bass! This sub performs flawlessly in almost any sealed, ported, or bandpass enclosure.Details:
- laminated paper cone with treated foam surround
- frequency response 29-150 Hz
- power range 50-200 watts RMS
- peak power handling 400 watts
- sensitivity 89.7 dB
- top-mount depth 5-7/16"
- sealed box volume 1.25 cubic feet
- ported box volume 2.0 cubic feet
- Recommended Q-Logic Box Type: 2, 3
- 1-year warranty
Priced per speaker
What's in the Box:
- One 12" woofer
- Features/Specifications sheet with enclosure size information
- "MTX Audio" sticker
Features and Specs
|Cone Material||Laminated paper|
|Ideal Sealed Box Volume (cubic feet)||1.25|
|Ideal Ported Box Volume (cubic feet)||2|
|Port diameter (inches)||4|
|Port length (inches)||11.5|
|Dual Voice Coil||No|
89.7 dB at 1 watt
|Frequency Response||29 - 150 Hz|
|RMS Power Range (Watts)||50-200|
|Peak Power Handling (Watts)||400|
|Top Mount Depth (inches)||5 3/8|
|Bottom Mount Depth (inches)||5 13/16|
|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 a black laminated paper composite with a black poly dust cap. "MTX AUDIO" is embossed in gray and red on the poly dust cap.
Strontium Ferrite Magnet: This woofer is made with a 30 oz. Strontium Ferrite magnet to yield a highly efficient speaker.
Black Foam Surround: The woofer's surround is made with durable black foam.
High-End Gasket Design: The gasket attached to the top of the woofer frame is MTX's new injection-molded polystyrene gasket. The hard polystyrene gasket is resistant to U.V. rays and it looks good.
Asymmetrical Linear Drive System: This system uses a flat progressive spider and an extended, vented pole piece to improve linearity and permit high output with low distortion.
Flat Progressive Spider: A flat progressive spider helps reduce distortion by precisely controlling cone excursion.
Extended Vented Pole Piece: The extended vented pole piece provides a more symmetrical magnetic field. The vent helps air circulate around the voice coil to keep the coil cool; this increases power handling and reduces distortion.
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 1.25 cu/ft enclosure, so this is the enclosure recommended by Crutchfield.
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, so this is the enclosure recommended by Crutchfield. A 4" diameter x 11.5" long port should be used with a 2.0 cu/ft enclosure; a 2.0 cu/ft enclosure with a 4"x 11.5" port has a tuning frequency of 36 Hz.
Single Reflex Bandpass Volume: The bandpass box sizes recommended by MTX range from 2.0 cu/ft to 3.68 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 2.28 cu/ft enclosure, with a sealed chamber volume of 0.85 cu/ft, a vented chamber volume of 1.27 cu/ft and two 4" diameter x 6.25" long ports. The enclosure with an "S" value of 0.7 is a 2.99 cu/ft enclosure, with a sealed chamber volume of 1.03 cu/ft, a vented chamber volume of 1.82 cu/ft and two 4" diameter x 4.25" 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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