Rockford Fosgate PBR300x2 300 Watt Mini Amp for Car, Harley, ATV, Scooter
Channel: Williston Audio Labs
Date: 2012-04-02

See me put the new Rockford Fosgate Punch PBR300x2 mini class BR amp though the OldSchoolStereo.com labs test bench. See RMS power output tests at 4 and 2 ohms stereo and 4 ohms mono. I also demo the PBR300x2 using my recently built Rockford RFA-414 AUDIOphile bookshelf speakers, a trio of JL Audio 8W6 subs wired at 4 ohms mono and a mid 90's Phoenix Gold XVR4 tri-mode crossover handling all of the x-over duties. 

I used the trusty SMD DD-1 and Velleman HPS50 to measure RMS output wattage powered by a beefy Audio Authority Model 2/77 Hybrid 13.4V power supply. My results were not as impressive as Rockford's PVC "birth sheet", but they also use a higher voltage (14.4) and use a sophisticated PowerCube resistor network instead of a basic dummy load resistor network. 

This PBR300x2 turned out to pack a lot of power in a small package! Many people are using these for stealth installs in cars, motorcycles, ATV's, scooters and other 12v applications where a small, high powered amp is required. There have been many threads on the Harley Davidson forums with folks buying these up to use on their bikes.

See the full article on OldSchoolStereo.com:
http://www.oldschoolstereo.com/2012/04/some-really-powerful-mini-amps-rockford.html

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