What is the lowest impedance I can run a Rockford Fosgate amplifier at?
Please check the specifications listed in the owners manual for your specific amplifier model. The impedance will be listed in the power output data and should be used as the minimum recommended impedance load for the amplifier.
Example:
100 Watts RMS x 2 @ 4-Ohms
200 Watts RMS x 2 @ 2-Ohms
400 Watts RMS x 1 @ 4-Ohms Bridged
In the above sample, the lowest impedance the amplifier is designed to handle is 2-Ohms Stereo (2-Ohms minimum on the left channel and 2-Ohms minimum on the right channel) and 4-Ohms Bridged Mono (4-Ohms minimum when the left/right channels are bridged).
Our support specialists frequently hear "My friend told me Rockford Fosgate amps can run into lower impedances". It's no doubt Rockford Fosgate amplifiers produce an insane amount of power. However, the minimum recommended impedance load ("stable") is clearly printed in the owners manaul and we cannot endorse impedances lower than the printed specifications.
Doing so will jeopardize your amplifier's reliability, performance, thermal capacity and product warranty.
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