I have the Stax SR 507 which has developed channel imbalance due to parasitic charges. I store the phone on a bentwood stand under a Stax clear dust cover. However, I have been guilty of leaving the phones on the desk uncovered during the day. it is only at night that I cover the phones. What is the best way to dust this phone? In another thread, one user uses this: http://www.amazon.com/Giottos-AA1900-Large-Rocket-Blaster/dp/B00017LSPI/ref=pd_bbs_1/104-7072879-7496700?ie=UTF8&s=electronics&qid=1186614550&sr=8-1 However, I'm leery of using any excessive force.