There is NO acoustic firmware in the Seagate drive to even program! I agree that some drives with acoustic managment are still loud, but I haven't heard of a quiet consumer-level Seagate hard drive in a long time. But people consider different things to be "noise" -- ultimately a consumer needs to just try it and see if its quiet enough for him. Also, larger hard drives tend to be noisier than smaller ones, but two quiet hard drives may be noisier than one large one. It just depends on the models. My advice is to buy from a place that accepts returns on opened hard drives, and save the receipt.