Ok, I just spent 3hours reading about everyone's audio choices and have almost finalized my decision.

1 set Polk Audio AA2651-A MM651 6.5-Inch Coax Speaker $127
1 set adapter rings

Still in question

Soundstream PN4.520D $145
Or
Rockford Fosgate PBR300X2 Punch 300 Watt 2-Ch Boosted Rail Amplifier $144.99

Is there any real advantage to a 4 channel amp if I'm currently only using two speakers.

 

Oh yah, if I do decide on the 4 channel is there a benefit to bridging the amp withe these speakers?

 

If you decide to add more speakers in the future you won't have to buy a new amp if you get a 4 channel. If there is a benefit to bridging I think it would be minimal. You're already gonna be giving your speakers plenty of power. I only bridge channels with subwoofers to give them more juice. It all depends on the RMS and Peak power of your speakers and amp.

 

I appreciate the reply. I don't have any intent on adding additional speakers but the two amps are virtually the same price so I don't see a disadvantage in going with the four channel.

 

Soundstream is a good brand and if they're comparable and match up to your speakers well then it's up to you. I've used 3 RF amps over the last 10 years and they've never let me down. Rockford knows amplifiers. I've been out the game so long that I'm sure there are new manufacturers out there or technology so they're pretty equal. I just put a Sound Ordnance in my Duramax cuz I wanted somethng cheap and it has a 3 year warranty and it's been amazing. I've always had good luck with electronics though.

 

well the rockford cant run 2ohm stable for the polk speakers you would end up toasting it..i just ordered my polk mm651 components for the fairing and polk mm 6x9's for my lids. along with a soundstream nano 520 4 channel amp..

 

He is talking about the 2 channel rockford that is rated at 2 ohms. Its the 4 channel rockford that can only handle 4 ohms.

 

Does anyone know if the Polk Audio AA2651-A MM651 6.5-Inch Coax Speaker are the correct speakers that everyone is ordering? What is a Coax speaker?

 

I just ordered the Polks for myself. Scroll down to the "Audio" section of the forum. UltraNutZ is a great person to ask info on the matter.
I also just ordered that same amp from www.Savinglots.com for $109.95 plus $15 shipping.

 

Do yourself a favor and don't buy a Rockford Fosgate amp. Go another route. I personally have the Arc Audio.