from looking at Acoustic Solutions amps, they are at (to be kind) budget entry level. The clipping you heard may be been because the amp just doesn't have enough oomph, rather than it being a speaker issue (amps clip, not speakers).
Big, heavy (a curious requirement that one) speakers generally need a lot of power (unless you go for uber-efficient horns). It's basically impossible (or makes no sense) to recommend any such speakers that can be driven by a weedy old 40W budget amp.
There's no point in saying you have an unlimited budget as there is virtually no limit on what you can spend. Your idea of unlimited might be 2K,5K,10K,20K but there is always something more expensive available. However, this is meaningless whilst you still want to hang onto a cheap, underpowered, budget amp as even if you bought a 10K pair of speakers, the amp would a) not be able to power them and b) probably damage them.
Big, heavy (a curious requirement that one) speakers generally need a lot of power (unless you go for uber-efficient horns). It's basically impossible (or makes no sense) to recommend any such speakers that can be driven by a weedy old 40W budget amp.
There's no point in saying you have an unlimited budget as there is virtually no limit on what you can spend. Your idea of unlimited might be 2K,5K,10K,20K but there is always something more expensive available. However, this is meaningless whilst you still want to hang onto a cheap, underpowered, budget amp as even if you bought a 10K pair of speakers, the amp would a) not be able to power them and b) probably damage them.