Problem: Intermittent RF-like interference with USB audio streaming Equipment: Galaxy Note2 (SGH-I317) connected via USB (OTG cable) to iBasso D-Zero Carrier: AT&T ROM: Stock (not rooted) When streaming music (esp. Pandora), intermittently, annoying static will be introduced for a period...

I need some electronics help to understand a phenomenon. I just received a new STAX SR-313 from Japan wired for 120v (or so it states on the back of the unit). With nothing connected to the unit (no cables other than power), I noticed a HUM when the volume knob was turned above 5 through 9.5...

I'm sitting in my office and a box was delivered from EIFL in Japan containing SR-404, SR-313, STAX Stand, Cover, and 2.5M Extension Chord! The outer package shows some wear/tear from the journey, but Koji packed the contents well and everything seems to have survived in pristine condition (he...

There is insane bidding on EBAY over a set of Grado RS-1's. Last time I checked, someone had bid $705! I checked and, even if these Grado's are new, as advertised, there will be NO WARRANTY. There is no disclosure concerning where this set originated or how the current seller got hold of them...