Maestro de Turismo
Join Date: Apr 2005
Location: Madrid, , Spain
If you have in-helmet speakers they will by necessity be very flat and thus have very little bass. And as wind noise builds up, you lose sound to the point that if you raise volume too much the treble is not comfortable and sound is crap.
However, I have them in my helmet from my Baehr intercom system and use them in conjunction with regular noise blocking earplugs - the little foam things. The outcome is very good - the earplugs block out the windnoise (but let in the music) and at the same time reduce the impact of trebble working almost like bass. Is it hi-fi? No, of course not. But it is very acceptable and a true hi-fi sound would be a waste of money as you will always have ambient noise on a bike at speed.
I also own a set of custom made earphones as have been mentioned above - they are great, but I have quit using them on the bike since the results of the above system work almost as well for me, and it's less hassle with the earplugs and in-helmet speakers.