Can You Get 1,000 WPC Out Of Regular Wall Socket?

Another way to look at it: think about the power/energy that goes INTO making music, be it acoustic, electronic, symphonic, big band, rock, rap, jazz, whatever. Then it becomes clear why one might want a lot of it similarly to play back a recording, especially for certain types of music.

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I own the notoriously inefficient Infinity Kappa 9 speakers. They are known for bringing amplifiers to their knees. They need to be biamped to be their best. It takes a lot of power to wake them up. I'm thinking of throwing one or two pairs of the D-Sonic 1500 wpc monoblocs at them.
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Mitch,

I for one would be interested to hear how they fare compared to your big Pass amps with those speakers.

Have you ever tried any other Class D amps with those?

thanks.

Can the D-Sonic put out 1500 wpc 24/7 or just for milliseconds?

Mitch, there isn't much information provided about those amplifiers at the D-Sonic site. If you haven't already done so, I would suggest that you research and/or try to confirm with the manufacturer that they can handle the extremely low impedance of the Kappa 9.

The Kappa 9s, when used with their "extended/normal" switch in the "extended" position (which iirc seemed to be the most commonly preferred setting), go down below 0.8 ohms at multiple bass frequencies, where lots of energy is typically required. The "normal" mode is not quite as severe, but is still very challenging.

Also, I don't know what their phase angle behavior is in the bass region, but it wouldn't surprise me if it was significantly capacitive, adding to the severity of the load.

My impression is that the impedance characteristics of the Kappa 9s, rather than their inefficiency, are the main reason for their reputation as amp killers, although both factors undoubtedly contribute.

Regards,
-- Al