Features
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Intelligent Surface Mount Technology
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Patented PWM MOSFET Switching Power Supply (#5,598,325)
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Adaptive Class D Technology
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High Powered Transformer
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High Powered stacked inductor
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Pure N-Channel Design
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Doubles power into 2 ohms
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Real lime Computerized Protection Circuit
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Color-coded wire harness for speaker-level input installation on Thunder4250D and 65000
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Smart-EngageTM auto turn on for easy integration with factory head units Thunder4250D and 6500D
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Acoustically Seamless Turn-on/Turn-off (i.e. no noise)
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Variable frequency low-pass crossover, 40Hz to 200Hz. 24dB/octave low pass
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Defeatable compression circuit included on Thunder6500D and Thunder810000
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Continuously adjustable and defeatable Bass EQ enhancement circuitry, centered at 40Hz
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Low level inputs
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EBC - External Bass Control Port with an additional 3dB of gain when used, and 23dB attenuation
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Adjustable input sensitivity
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Buffered RCA Outputs for daisy-chaining additional bass amplifiers
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Nickel-plated, heavy duty terminal block type connectors
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Unique rubber Insulated Iso-FeettM
Smecifications
THUNDER4250D
THUNDER81000D
RMS Power measured at 12.5 Volts DC:
125 Watts x 1 into a 4 Ohm load with less than 1% ThdrN
250 Watts x I into a 2 Ohm load with less than 1% ThdtN
Dynamic Power measured at 14.4 Volts DC
200 Watts x 1 into a 4 Ohm load
350 Watts x 1 into a 2 Ohm load
S~goal to Noise Ratio: >lOOdB A-Welghted
Damping Factor: ,200
Frequency Response: ZOHz-200Hz
Maximum Input: avrms
Thunder E(1: Variable Bass Boost IO-lad61 centered at 40Hz
Crossover: Variable 4OHz to 200Hz. 24dBioctave low pass
Dimensions: 7” x 9 15” x 2” (17.8cm x 24.&m x 5.lcm)
9.9’ x 9.75” x 2.1” (23.6cm x 24&m x 5.3cm) Including lsoFe@
RMS Power measured at 12.5 Volts DC:
500 Watts x I into a 4 Ohm load with less than 2% ThdtN
1000 Watts x I into a 2 Ohm load with less than 2% ThdtN
Oynamfc Power measured at 14.4 Volts DC
a50 Watts x I into a 4 Ohm load
1500 Watts x 1 into a 2 Ohm load
Signal to Noise Ratio: tlOOdB A-Welghted
DampIng Factor: >I00
Frequency Response: ZOHz-200Hz
MaxImum Input: BVrms
Thunder E(1: Variable Bass Boost IO-l8dB) centered at4OHz
Crossover: Variable 40Hz to 2WHz. 24dBioctave low pass
0imenslons:lM” x 9.75” x 2”.(40.lcm x 24.8cm x 5.lcm)
17.K x 9.W x 2.1’ I45 2cm x 24.8cm x 5.3cm) Including IsoFeerM
Recommended Fuse = 150A
THUNDER6500D
RMS Power measured at 12.5 Volts DC:
250 Watts x I into a 4 Ohm load with less than 1% ThdtN
500 Watts x 1 mto a 2 Ohm load with less than I% ThdtN
Dynamic Power measured at 14.4 Volts DC
450 Watts x I mto a 4 Ohm load
775 Watts x I mto a 2 Ohm load
Signal to Noise Ratio: >lOOdB A-Welghted
Damping Factor: ,200
Frequency Response: ZOHz-200Hz
Maximum Input: BVrms
Thunder EtI Variable Bass Boost IO-18dBl centered at40Hz
Crossover: Variable 40Hz to 2WHz. 24dBloctave low pass
Dimensions: 11.5” x 9.75” x 2” (29.2cm x 24.8cm x 5.lcm)
13.9” x 9.75” x 2.1” (36.6cm x 24.8cm x 5.3cm) Including lsoFeeCM
(16 pages)
(19 pages)
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