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Rockford Fosgate 100a2 Car Audio Amplifier - Page 8 Questions & Answers
Rockford Fosgate Power 1000 amplifier. (25 to
turn or flip the LPF and sub sonic buttons to see if they will help.there are other buttons called gain that you may have to turn to bring up the volume.its very likely your eq buttons that you have to mess with to get it right. post up pics if you can.
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