Just sayin'.....I can tell a HUGE difference.....night and day between stock only and what I have now. I did it in phases.
1. Added the Rockford Fosgate PBR300. Big difference even with the stock speakers.
2. Swapped stock speakers for Rockford Fosgate 5.25"... Not as big of a difference as I had hoped for....wasted $79.
3. Switched to Polk MM521. 5.25" speakers. These kick butt, especially when running my IPod in the AUX mode.
I didn't pull the trigger on the 6.5" upgrade because you can't use the speaker enclosure. Have to run them without it. When I hooked up the first set of RF speakers I replaced with the Polks, I tried it with and without the enclosure. The enclosure made a big difference and I didn't want to drop the $$$ on the 6.5's and the brackets and not be satisfied. They may work great, I just didn't want to spend $200 for speakers and $50 for the brackets after putting the money into the amp and the first set of speakers I ended up replacing with the Polks. And yes, the Polks are marine grade. I got them on Amazon for about $110. You don't necessarily need marine grade though. Most decent quality auto-type speakers should hold up as long as they are plastic based cones.
It all depends on how much $$$$ you want to sink into your project.....but the amp will make a big difference.
2013 Cross Country Tour & 2006 Vulcan 900 Classic,
Lloydz ATS Wheel
Lloydz Air Filter
Witchdoctor Voodoo HP Pipes
RF PBR300 with Polk MM531's
I love my wife....and motorcycles. She understands (most of the time)!
Coming to you from lovely Clear Spring, Maryland