Rockford Fosgate Car Audio & Video - Page 5 - Recent Questions, Troubleshooting & Support

Internal or external? Those are protected externally as close to the battery as possible. Check the wire size and color at the amp and then go look for it at the battery under the hood. You should be able to see the installers additions. Inside the unit is another matter.

assuming all 3 subs are 3-4 ohms, running all 3 in parallel (the 3 positive leads all attach to the amp positive terminal, and all 3 speaker negative leads connect to the amp negative terminal) will bring you at or above 1 ohm, which the amp is capable of handling. With 1500 watts, you will want to use 8 gague power leads for the amp, 12 gague speaker cables, and an inline 120 amp fuse between the amp and the battery, within 1 foot of the battery.

yes, if you add a 1 ohm resistor to the negative terminal of speaker.

Ive had a similar problem with my sundowns try wiring your remote start wire to a blue wire behind your stereo

Several possible issues. Most likely blown fets.

Take it to a local stereo installer

red is hot, black is ground.

input or output stages?

12 gauge wire ought to work

yes, it is repairable.

its all relative. keep the reds on the same side and the whites on the other.

not recommended .

open amp and resolder jacks back on the board

will bet dollars to donuts the remote is a permanent hot. Check your wiring

what are the numbers on the cap.

Are you interested in the filtering stage or the amplification stage

this is a full-range amp suited best for full range speakers,however it can still be used for a sub. you want a sub whose max RMS is 150 watts or less.