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Owners Manual (627k)

Specifications
Input
Hi Level w/ Smart Engage
Low Level Input

Crossover(s)
Low Pass @ 40Hz-200Hz - Variable
Thunder EQ
EBC2 Port

RCA Output
Full Range Only

Specifications
RMS Power 12.5 VDC
2 Ohm Load 300 w x 1
4 Ohm Load 150 w x 1

Dynamic Power 14.4 VDC
2 Ohm Load 420 w x 1
4 Ohm Load 210 w x 1

Dimensions (with ISO Feet)
9.4" x 9.75" x 2.1"
23.9cm x 24.8cm x 5.3cm

" border="0" align="right">Thunder421D Mono-Block Class D - Mono-subwoofer

Special Coupon for Internet Shoppers. This subwoofer amplifier features MTX Audio's Adaptive Class D Technology for large power numbers from a very small footprint. Thunder421D features a low pass crossover, variable from 40Hz to 200Hz, this amp also contains both the Thunder EQ bass boost and an EBC2 port. Our "Smart Engage" auto-turn-on circuit makes installation easy.

Owners Manual (627k)

Specifications
Input
Hi Level w/ Smart Engage
Low Level Input

Crossover(s)
Low Pass @ 40Hz-200Hz - Variable
Thunder EQ
EBC2 Port

RCA Output
Full Range Only

Specifications
RMS Power 12.5 VDC
2 Ohm Load 300 w x 1
4 Ohm Load 150 w x 1

Dynamic Power 14.4 VDC
2 Ohm Load 420 w x 1
4 Ohm Load 210 w x 1

Dimensions (with ISO Feet)
9.4" x 9.75" x 2.1"
23.9cm x 24.8cm x 5.3cm

Price Check

TH421D - MTX - TH421D