Firstly, Radio is one of the bugbears of student pilots. There is enough to do when learning to fly without having to worry about poor quality RT, so try your hardest to get a good quality pair. Miss a lesson if necessary and put the "saved" money to the headset.
Having said all that, I'm with Genghis, WR and LowNSlow as I to bought a pair of Harry Mendelssons years ago. They have never given me any problems in any aircraft and I used them for years flying a lovely old, but noisy DH Hornet Moth and they were so comfortable too. However, one day and with a bit of extra money in my pocket, I bought a pair of DCs, swaggered out to the plane and put them on. Certainly very good quality, although no better than Harry's.... But an hour on, I asked my wife to take over for a moment as I reached into the back for the dear old HMs and gave my poor throbbing ears and pending headache some relief
