Gonna try that tomorrow, should've 280f have quite big difference in maximum bass compared to rf52II? If it would be the case that rp280f cant play louder without cone scrubbing sound, rf52 would have an amazing bass production for their size compared to 280f 8 inch drivers. Though Rp280 have smoother and deeper bass, like an amazingly good bass when playing. "Bass I love you" song. RF52II cant even play that deep bass so immersively. I can play that quite loud compared to juiced 2 tracks or *** like that too without scrubbing noise becoming problem But If cones starts to move half way through that you can see it clearly, cone scrub becomes imminent. and should amplifier become problem first than the speaker's maximum capacity? All the positive reviews Ive seen everywhere about how loud these play and such. :$