Vortex Sound Research

I love my cp and will be taking it on the road, I normally use headphones but if playing w others would like a portable speaker or amp that can be powered by battery or hold a charge, looking for less than $100, any ideas? I’ve tried the cp w cheaper speakers and it seems to get overwhelmed w all the harmomics. I try to run it out of the phones output and convert to aux as to minimize excess distortion from l mono Thanks ?