How about bookshelf speakers for under $1000

[audio amateur]

The noise I called "clapping" is a very fast noise. It sounds like sort of a blap-blap-blap during periods of somewhat heavy bass. I actually have been able to avoid that issue at my normal listening levels by adding a subwoofer and setting the crossover to 100 Hz. The noise doesn't sound like like it's being played through the speaker. It sounds like it's the actual cone.

...

A side note...Part of my original plan for these two amps was to bi-amp some floorstanding speakers...so that's an idea that still rocking around in my brain.

I would back off the volume in that case. What you'll need is a bookshelf with a large bass driver or multiple bass drivers. If you're thinking loud, perhaps think Klipsch. They tend have high sensitivity & power handling (larger bass drivers, depending on the model). The Polk may fair ok at higher levels aswell.

[E-Stat]

I would back off the volume in that case. What you'll need is a bookshelf with a large bass driver or multiple bass drivers.

I think he's simply hearing clipping. Many speakers with small drivers can play at ear bleeding levels when provided enough power.

rw