Just saw this post, I would agree with the KS300.2 (not the .4) and run one per Tyrant, Entity, Deviant, or Prodigy in bridged mode. These are readily available and will provide good power with adequate head room. I do recommend that you keep the gain below 50% (preferably under 30%) and insure that the input voltage is 4V, preferably more. Keep in mind IR drop when sending the signal to multiple amps. Hi Pass mode with Xover about 100-120 Hz for newer stuff, 120-150 Hz for older.
If you want the cleanliness of an A/B, consider the RF T600.2 but most can't tell the dif in our environment.
Happy Holidays
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