MTX Thunder61

Thunder Series 6-1/2" 2-way component speaker system

Item #: 236THND61

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Speakers for the real world

MTX doesn't make speakers that only deliver the goods in a sound lab. This Thunder61 component system features a 6-1/2” durable polypropylene woofer with a rubber surround that'll shrug off the weather and wear that come with living in your car full-time. You can swivel the 1-3/16" silk soft dome tweeter up to 15 degrees in your direction to really dial in the stereo imaging across your dash, and MTX includes hardware to flush- or surface-mounting.

The included crossover network features 2-level tweeter adjustment for fine-tuned sound staging. And while no car speaker can produce bass like a large subwoofer, the Thunder61 woofers truly shine in the lower frequencies. With up to 90 watts RMS of power handling, you can add to their impressive depth and richness when you power them with an outboard amplifier.

MTX's unique prorated 5-year warranty makes these Thunder61 speakers a smart buy.

Highlights:

  • component speaker system includes 2 woofers, 2 tweeters, and 2 crossovers
  • 6-1/2" polypropylene cone with rubber surround
  • 1-3/16" silk soft dome tweeter
  • 2-way crossover with adjustable tweeter level
  • power range: 2-90 watts RMS (180 watts peak power)
  • frequency response: 44-20,000 Hz
  • sensitivity: 90 dB
  • impedance: 4 ohms
  • woofer mounting depth: 2"
  • warranty: 5 years (free repair or replacement for 2 years, prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

Hands-on research

What's in the box?

Download owner's manual

  • 2 Woofers
  • 2 Tweeters (7" wire attached)
  • 2 Crossovers
  • 2 Metal woofer mounting brackets
  • 2 Woofer grilles
  • 2 Surface mount tweeter housings (with tweeters installed)
  • 2 Flush mount backing rings
  • 2 Flush mount trim rings
  • 2 Foam tweeter spacers
  • Four 6" Speaker wires (each with quick slide terminals on one end and bare wire on the other)
  • 2 Tweeter flush mounting clips
  • Two M4x35mm machine screws
  • Four 3/4" Flat-head screws
  • Eight M3x4mm Machine screws
  • Eight 1" Self-tapping screws
  • 8 Speed clips
  • Cardboard template
  • Mounting diagram
  • Warranty information

Features and Specs

General
Speaker Size 6 1/2
Design 2-way
Tweeter Design 30mm Dome
Tweeter Composition Silk
Woofer Composition Polypropylene
Woofer Surround Rubber
Parts Warranty 5 Years (3-5 Prorated)
Labor Warranty 5 Years (3-5 Prorated)
Specifications
Sensitivity 90 dB
Frequency Response 44 - 20k Hz
RMS Power Range (Watts) 2-90
Peak Power Handling (Watts) 180
Impedance (Ohms) 4
Top-mount Depth (Inches) 2
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5 1/16

Product Research

Features

Woofer Cones: The MTX Thunder Series speakers feature durable and rigid polypropylene woofer cones. Polypropylene is also resistant to the moisture and temperature extremes found in automotive applications.

Woofer Mounting: MTX calls the Thunder61 a 6-1/2 component set, and without using the included woofer mounting bracket, it fits into most 6-3/4 and 6-1/2 openings, but the bolt pattern matches a standard 6-3/4 speaker. To fit the standard 3-hole and 4-hole 6-1/2 applications, the included bracket must be used, resulting in the measurements used to sort what vehicles it will fit. If mounted without the bracket the depth is 2.126" and the mounting height is 0.5". In most 6-1/2 applications, when mounted without the bracket, new screw holes must be drilled.

Tweeter Mounting Options: The tweeters can be flush mounted or surface mounted using the included hardware. Once installed in either housing, the tweeter will pivot approximately 15° in any direction.

Tweeter Dimensions:

  Frame Diameter Cutout Diameter Mounting Height Mounting Depth
Flush Mount 2.235" 1.967" 0.318" 0.706"
Surface Mount 2.2" N/A 1.035" 0.64" (Screw Depth)

Crossovers: The crossover inputs and outputs are set screw terminals; they accept bare wire up to 10 gauge. There are two positive tweeter outputs, offering flat and -3dB output options. The screw terminals have 2mm Allen heads, and are recessed slightly more than half an inch, so a standard Allen head bit for a screw driver will not fit (an Allen wrench is not included). The crossover point is 4 kHz, the high pass slope is 18 dB/octave and the low pass slope is 6 dB/octave.

Crossover Dimensions:

  • Width: 4-15/16"
  • Height: 1-3/8"
  • Depth: 3-1/8"

Warranty: MTX offers a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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Get everything you’ll need to enjoy your new MTX Thunder61

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
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