I've recently trialed Siemens Silk, Widex CIC and Phonak titanium. Of the three, the Widex although bulky and stick out of the ears, so less discrete, gave the clearest sound and the best balance. I could hear the harmonics on guitars and other instruments while the others seems thin and distorted and the voices muffled. Could be that I haven't got the others properly setup so I don't want to criticise the other products. I've had aids from both in the past. I just wondered if anyone else had any experience of these?
