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<blockquote data-quote="forbidden" data-source="post: 600996" data-attributes="member: 552189">Do not bridge the two amps, do not pass go, do not collect $200.00.Your subs are single 4 ohm, wired in the circuit shown will result in a net load of 2 ohms mono to the amp which will send each amplifier into thermal protection in no time flat. Use one amp or the other only. The Rockford is the slightly larger of the two as for the 12 volt power ratings of 50w rms x 2 vs 45w rms x 2.Wire the subs in parallel as shown in the thumbnail above, however this is now used as 1 channel of the amplifier. Do the same to the other set of subs and wire to the other channel of the same amp. This will result in a net load of 2 ohms per channel and is safe for the amp to run. The amp will make about 100w rms per channel split 50 watts to each sub (approximate). You have a way too small of an amplifier to try and drive 4 of these subs to their design capabilities. It is OK to underpower a sub like this as long as the gain is set properly&nbsp; An improper gain setting will clip the outputs of the amp and send large amounts of distorted signal to the subs to be reproduced, end result is sss . A much larger amp should be in your future.</blockquote>

[QUOTE="forbidden, post: 600996, member: 552189"] Do not bridge the two amps, do not pass go, do not collect $200.00. Your subs are single 4 ohm, wired in the circuit shown will result in a net load of 2 ohms mono to the amp which will send each amplifier into thermal protection in no time flat. Use one amp or the other only. The Rockford is the slightly larger of the two as for the 12 volt power ratings of 50w rms x 2 vs 45w rms x 2. Wire the subs in parallel as shown in the thumbnail above, however this is now used as 1 channel of the amplifier. Do the same to the other set of subs and wire to the other channel of the same amp. This will result in a net load of 2 ohms per channel and is safe for the amp to run. The amp will make about 100w rms per channel split 50 watts to each sub (approximate). You have a way too small of an amplifier to try and drive 4 of these subs to their design capabilities. It is OK to underpower a sub like this as long as the gain is set properly An improper gain setting will clip the outputs of the amp and send large amounts of distorted signal to the subs to be reproduced, end result is sss . A much larger amp should be in your future. [/QUOTE]

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