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