I have the new Transformer Prime, OH now has my Transformer - both great pieces of kit.

However I noticed on both, with earphones attached, when watching movies the volume is very low. So low in fact, that I couldn't properly hear the sound on a recent flight.

It seems to be a common complaint so I tried an app called Volume + which didn't help. (the developer does say that it may not work unless a custom ROM is used I think).

Both tablets run ICS.

Any suggestions anyone?