I have an Alpine PDX-F4 running a pair and sounds great. They are great amps.
A good friend of mine has a brand new in the box F4 he is looking to sell, he is upgrading to 4 Rev 10's instead of 2 and needs more power. Let me know if your interested.
Last edited by yjwrangler95; 04-10-2013 at 12:45 PM.