Pioneer SX-1050 speaker problems


Hi,

total noob here. I recently purchased a pioneer sx-1050. I have an Audio Technica AT-LP120 and DALI Zensor 3 speakers. The receiver is in great condition and sounds fantastic. However, at higher volumes (especially if I have the bass positive) the cones on the speakers vibrate crazily. 

I have tried reconnecting the speakers. I have also tried an external pre-amp but if I turn up the bass even a little (I like heavy bass) then at higher volume the speakers have a fit. I presume I am doing something stupid. Any ideas?
M.
128x128schmada
You'll need to figure out whether you are over driving your woofers excursion limits or if you are sending your amp into clipping or a combination of both.
It would most likely be beneficial to switch to a speaker that has more bass output than your current to suite your taste.
Sounds like you’re over driving the speakers and I suspect you’ll completely destroy those (small) speakers if you had your amplifier at the clipping level. 120 wpc is way over the limits of these speakers if driven at high spl levels.
thanks for the responses. I think the speakers will have to find a new more suitable home and I will be looking for  something more robust.