Rockford Fosgate R500-1

The Rockford Fosgate R500-1 is a single-channel, Class-A/B amplifier released as an upgrade from the R250-1. It provides a higher 500W (2-Ohm) power output, making it an optimum choice for a pair of 10” or 12” subwoofers.

Plus it hosts a much wider 20-250Hz frequency range. Included is a Punch Level Control that corrects acoustic anomalies, insuring that bass is deep and highs/lows are crisp. Critics say that though the Rockford Fosgate R500-1 can be used with two speakers, it’s better employed with just one—especially for users seeking to reproduce room-shaking bass that’ll fill up an entire neighborhood.