I'm having a very bad day. I put on some music this morning and realized cello sounded raspy on the right. A few checks & I discovered the woofer in my right CS7 is 'blown'. The large voicecoil is extended and stuck outside the magnetic gap. I've been having trouble with my DAC and yesterday it output 3 spikes in quick succession which my 250wpc DC-coupled Adcom 5800 dutifully output as what sounded like 3 gunshots.