I've also got the I-Magic tacx with Fortus upgrade and love it, no problems with 3+ hour rides, its also great for training on set items, intervals, sprints, hills etc.
I still have music blasting out in the ears but use a noise cancelling set of ear phones bought when I used to fly a lot, perfect for losing the sound of the turbo while listening to music or whatever takes your fancy, but can still her the wife if she shouts at me or the phone when it rings.