Anyone out there have any experience with these? They are based on the xWire technology which Sennheiser purchased from xWire when they went out of business. These are being discontinued by Sennheiser. I've heard both good and bad but decided to take the plunge since they are digital and do not use a compander circuit so no squashing of the signal and the frequency range is 20hz to 15k so it will handle my 5 string. Everything else with the same specs is mucho $$$$. These were $800.00 but are being sold off for $299.00. I would appriciate hearing any and all comments.