Specs on the 4250D
mono output
125 watts x 1 at 4 ohms
250 watts x 1 at 2 ohms
requires 8-gauge power and ground leads — wiring and hardware not included with amplifier
PWM MOSFET switching power supply
Intelligent Surface Mount Technology for cleaner sound
Thunder EQ bass boost (0-18 dB at 40 Hz)
variable 40-200 Hz low-pass crossover, 24 dB/octave (since the amp is strictly for low-frequency reproduction, the crossover is always active)
rubber Iso-Feet allow you to mount amplifier without the mounting screws contacting the amp's chassis
speaker-level inputs with SmartEngage (turns the amp on when it detects signal from the receiver, eliminating the need for a separate turn-on lead from your receiver)
EBC2 port for remote control of multiple Thunder EQ-equipped MTX amps
9-5/8"W x 2-1/4"H x 9-13/16"D
1-year warranty
Specs on the TA2301
Thunder TA Series Class D Monoblock Car Amplifier
RMS Power Rating:
4 ohms: 150 watts x 1 chan.
2 ohms: 300 watts x 1 chan.
Max power output: 300 watts x 1 chan.
MOSFET power supply
Wired remote bass level control included
Thermal and short LED indicators
Tuned Bass EQ (0-12 dB bass boost at 40 Hz)
Adaptive Class D Technology: With MTX innovative approach, the amplifier’s switching energy is constantly changing and is moved away from FM radio frequency ranges as the amplifier’s load and output increases.
Thermal and short protection
StreetWires Connectors
Xtant Technologies Cooling (XTC) thermal-regulated, turbo-charged intercooler
Variable low-pass filter (at 80 or 120 Hz, 24 dB/octave)
CEA-2006 compliant amplifier
Dimensions: 12-11/16"L x 9-5/8"W x 2-1/2"H
4 or 8-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
Authorized Internet Dealer
1-year Manufacturer’s warranty
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