JL or Rockford?

I have used the JL Slash series as well as the RF power series. All of them are great amps with nice power and clean sound. I now have a 450/4 over a t8004 and they both have excellent SQ - so I imagine that the 300/4 and 25 to Life are comparable.

You cannot go wrong with either. I do like how the RF Power Series have fuses onboard.

Neither amp has a bandpass filter to run your comps active, so that is no advantage. Both should be about as clean. The RF is a power amp, not a punch - the punches are kind of substandard to some 4 channels.

I would probably go with the 25 to life because it is 1 ohm stable on all 5 channels (might even go .7 on the 5th with solid electrical - think future) for more sub configurations and a single hookup. The 25 to life will also do about 100W at 2 ohms if you run your comps active, which is about 25 more watts. The 900-1000W out the 5th channel is an advantage as well. Also, less room in your sled.

Rest assured that you will do well no matter what you choose.

 
I had experience with both. RF is kool but sometimes you gotta wire it down to certain ohm's so you can get the watts you want powering the sub. JL is stable, you don't really have to wire your sub too much to get the watts you want.

 
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