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Thunder684 4-Channel Amplifier
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This 4-channel amplifier has the most flexible crossover we offer. On both front and rear channels, it's variable from 40Hz to 200Hz and selectable for either stereo high pass or mono low pass. The "Non-Fading Summed Output" jacks provide a line level summed output of the right front/right rear and left front/left rear input signals. This output is typically used to drive an external subwoofer amplifier. The parallel input switch allows a 2-channel signal to drive all four channels (no need for a "Y" connector). This amp even has the MTX Audio Thunder EQ bass boost!
Download Owner's Manual in PDF form.
Download the Quick Install Sheet in PDF form.
Specifications
| RMS Power 12.5 VDC |
Input
Low Level Input
Input Select
Crossover(s)
Hi / low @ 40Hz-200Hz - Front/Rear Variable
Thunder EQ
RCA Output
Full Range Only
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| 2 Ohm Load |
120 w x 4 |
| 4 Ohm Load |
60 w x 4 |
| Bridged 4 Ohm Load |
240 w x 2 |
| Dynamic Power 14.4 VDC |
| 2 Ohm Load |
170 w x 4 |
| 4 Ohm Load |
85 w x 4 |
| Bridged 4 Ohm Load |
340 w x 2 |
Dimensions (with ISO Feet)
15.6" x 9.75" x 2.1"
39.7cm x 24.8cm x 5.3cm
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Match Subwoofers to Amplifiers
Compare All 2004 Thunder Amplifiers - (169kb PDF file)
Amplifier Features Explained
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