I'm getting (almost) no bass out of the (replacement pair) Turbine Pro-Coppers, and all the sound just sounds congested, sharp and unnatural. At first I thought this was due to my week-long lack of sleep (severe fatigue). but I just tried some freebie Panasonic earbuds and they actually had more bass than the Coppers (Discman D-33, Bass Boost MAX). They better not be defective again.
Got myself some sleeping pills and will take one tonight, then try again tomorrow. Hey... at least I bought the Product Service Plan on these IEMs.