Get him Grado SR60i.
Dr Dre's Solo HD Beats is, well, how can I put it nicely. Under performing acoustically for its price at a concerning level.
Dr Dre's Solo HD Beats graph here:http://www.innerfidelity.com/content/monster-beats-dr-dre-solo
Grado SR60i graph here:http://www.headphone.com/headphones/grado-sr-60i.php
If you compare the two graph, you can see how the Dr Dre's headphone underperform, especially bad on freq over 1000Hz. That response freq of the Dr Dre's headphone is more comparable to a $30 most basic pair Sennheiser HD 202:http://www.headphone.com/headphones/sennheiser-hd-202-ii.php