I've been using a mixer (along with an external effects processor) with my PA80 and the low level of PA80's output was not a problem with the mixer; I just engaged -10dBV to +4dBu switch and it was fine. I recently got a YAMAHA YST-MS50 small powered multi-media speaker system which does not have such a thing (duh! :-)) hoping to use a simpler setup: PA80, on-board Vocal/Guitar processor, and YST-MS50 where a lot of power is not needed. Now the output level of PA80 is too low for the YST-MS50. (I guess PA80 sends out at -10dBV and the YST-MS50 operates at +4dBu)

Is there any small gadget other than a mixer that I can buy to boost the PA80's output level?

Thanks
Shiral