Yes, just to echo the fact that I use if for Viola in a folk band and for fiddle in a Southern Rock/Country band. It works a treat though I probably need to play around with other preamps etc. I play guitar too and love how I can plug EVERYTHING into the Helix floor and not have to mess about plugging/unplugging stuff during a gig. I use it with a PowerCab Plus for the strings with a flat response speaker set, then out of the PC+ into the desk.
The amount of effects you can get for the fiddles are truly staggering and a good 70% of the in-built guitar pedals work fine for the fiddle too. Just play around with it and you'll soon find the frequencies that work best for you (and your band). I'm a massive Helix fan; I can honestly say its saved so much hassle and back-problems from lugging heavy gear about!
