Quote Originally Posted by 98valk View Post
I received my DXI651 speakers and got them installed. They sound Great, with either amp. These speakers put out lower lows and louder lows. Definitely worth the $60.

The new amp gives the lows more "punch". But they sound just fine with the stock amp. I do have to turn the volume up about 2 clicks. So now instead of running about 12 on the volume, I have to use it around 14. That's okay, there is plenty left.

The OEM amp gets a lot of bad press on this board. I ran into something that might explain it (probably not). If you are blasting your stereo without the bike running, the battery is probably around 12.5v. If the bike is running, it will be around 14.5v (mine is a little higher than that). Since power is voltage squared, the 14.5v has 1/3rd more power for the amp than the 12.5v does.

If you are using a 100w+ amp, you don't need full power. 70% is plenty.

Anyway, the speakers are great!
Thanks 98valk! I just want a simple upgrade for now.. If at a later date I want an amp I'll go for it.. But gonna order some factory refurbished units for now!