I have been reading from Sena that the audio quality is better on the 20S / but from forums etc on the internet people do not think the sound volume or quality is very good. There are some that did speaker upgrades to a Koss headphone type mod. Does anyone know about this?

I use my Sena for music / GPS / phone / I Heart radio (nationwide) (no bike to bike or radio) so I don't know if the extra $250.00 is worth the money to switch everything over to the 20S.

I can get a replacement SMH-10 for $100.00 and would not need to buy an extra helmet set up for my other helmets.

Maybe I should get the SMH-10 and do a speaker upgrade.

Steve