Some definition of 'reasonably priced' might help here.
I've posted several reviews on inexpensive power line filters/conds... among them my exp with the RSA Haley has been best in so far as using a lesser seemingly so, restrictive unit. Albeit, every cond/filter allows current flow through it to the devices attached, up and to it's maximum.
What I suspect you infer is one which does the least damage to the leading edge of musical notes and transients. Correct??
Again, RSA comes to mind... although I'm sure there are others...
'Reasonably priced' however remains a relative item with regard to performance and one's perspective on the price paid for it.
