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MTX Thunder421D 421D

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420 Watts Max Power Monoblock Amplifier • 150 Watts RMS x 1 Chan. @ 4 Ohm • 300 Watts RMS x 1 Chan. @ 2 Ohm • Frequency Response: 20 Hz - 200 Hz • Signal to Noise Ratio: 100dB

Learn more about the thunder421d

We apologize

This item has been discontinued

Product Highlights


420 Watts Max Power Monoblock Amplifier • 150 Watts RMS x 1 Chan. @ 4 Ohm • 300 Watts RMS x 1 Chan. @ 2 Ohm • Frequency Response: 20 Hz - 200 Hz • Signal to Noise Ratio: 100dB

Description


MTX brand icon

Authorized dealer

  • 420 Watt Monoblock Amplifier
  • Signal to Noise Ratio: 100dB
  • Dampening Factor: >100
  • Frequency Response: 20 Hz - 200 Hz
  • Maximum Input: 8 VRMS
  • Thunder EQ: Variable Bass Boost 0 - 18dB centered at 40 Hz
  • Crossover: Variable 40 Hz to 200 Hz, 24dB / Octave Low Pass
  • Dimensions: L 9.75" W 9.4" H 2.1"
  • Authorized Internet Dealer
  • 1-year Manufacturer’s warranty

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Specifications & Details


Power Specifications - Full Range Channels
RMS Power @ 4 ohms
150 watts x 1 channel
RMS Power @ 2 ohms
300 watts x 1 channel
RMS Power @ 1 ohm
Not Stable
Bridged RMS Power
Not Bridgeable
Amplifier Specifications
Number of Channels
1 - Mono
Total RMS Power Output
300 watts
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
Not Bridgeable
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
High-Pass Crossover Frequency
40 - 200 Hz
Low-Pass Crossover Frequency
24dB Octave Low Pass
Signal-to-Noise Ratio
100 dB A-Weighted
Bass Boost
0 - 18 dB
Fuse Rating
20A x 2 

Item Details


Manufacturer:

MTX

Model Number:

THUNDER421D

Weight:

9.00lbs

Internal SKU:

thunder421d

Internal Product ID:

6276

Product and How-to Videos


Customer Ratings & Reviews


MTX Thunder421D 421D thumbnail image

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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