Hello, I purchased a Sony HDR-A1U today and took it out for an interview. The video quality looks great. My problem occurred when I hooked up two Sennheiser EW 100 G2 wireless lapel mics. On the XLR part I set the settings to: Low Cut=Off on both Rec CH to CH1 & CH2 Input level to MIC ATT on both and the +48V to ON on both I got this hissing and distorting noise when people talked. Now when I only hooked up one Wireless Lapel it worked fine. Where am I going wrong? I'm thinking it is a setting in the Wireless Mic, but fooled around with it for hours and nothing. Should the mics be on Pilot mode? Danks for all your help.