Big 2 channel Amp OR Smaller 6 channel and TRIamp?

Kal.... What do you think about my observation (based on measurements) that the equal power frequency (350 Hz or thereabout) is not what natters? I have found that with a real music signal the peak voltage swing requirement for the higher frequency signal is only met by a power amp with substantially greater power rating than that based on equal power.

Kal... Using a stereo power amp rated at 600 wpc (and therefore capable of large voltage swing, even continuously) I monitored peak voltage while playing dynamic music as loud, or louder, than I normally would do. With this setup I varied the crossover frequency. For the high frequency signal the voltages which I saw, if maintained continuously, would correspond to power levels far higher than the continuous rms power being delivered.

People who design audio amps for 150 wpc provide power supplies that can maintain voltage corresponding to not much more than 150wpc. In my view it would be better to run a much higher power supply voltage even without ability to maintain it continuously. (This is sometimes called "headroom"). The FTC rule about power specs, and audiophile fixation on the FTC power spec, discourages such a design approach.

Kal... I guess I would prefer option A, which, as I understand it simply means using a 300 watt amp for the speaker.

I don't see any advantage to using more than one amp unless there is a line level crossover.

Headroom reduces risk of clipping.