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MTX Thunder421D 421D thumbnail image
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5 star
50%
4 star
50%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
4.5
Design
5
Usability
5

Customer Reviews

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not too bad

Purchased and installed with a Diamond Audio 12" D4 sub and it hits pretty hard. makes my back window vibrate with about 1/4" flex. provides a good thump that can turn heads.

By Josh on April 24, 2006

4 found this helpful


Underrated Amp

I have this in my sister's car running an Alpine 12 inch type R. i have a feeling this amp makes more power than its rated for. it makes the sub pound and with good quality.

By Keith on January 23, 2006

3 found this helpful


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