Road noise with low-profile tyre

Re road noise from Bridgestone Potenza RE050 low-profile tyres. I've endured these thumping things on my Volkswagen Jetta from day one — for 35,000km — and look forward to ditching them. The deafening noise on bitumen, especially at low speed, has been constant, regardless of rotations and alignments. Earplugs have only given some relief.