Question about Focal Power Handling

The Weapon

This weekend I'll be putting a pair of 6.5" Focals in the Z.

Considering:
Polyglass 165 VB (70/140w)/165 VR (75/150w)
K2 Power 165 KR (80/160w)

Have:
Amp: 1999 RF Punch 600a4
Specs: RMS 4ohms @ 75x4 or Bridged 4ohms 300x2

Can someone recommend which line of Focals I should go with? $700 is the most I'll pay for a pair of components.

I'd like to run the the K2s bridged but if they can't handle it then I'll save the money and get the lower end Polyglass and run the amp as a normal 75x4 with 2 unconnected rear channels.

I know the numbers makes sense to get the 165VR in standard 4 ch mode, but is the amp really making 300x2 bridged?

If anyone can help that would be great.

Thanks

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