A Barcus Berry 4000 single Planar Wave System does the job that would otherwise take several microphones and a multi-channel mixer to achieve. Best yet, it attaches easily to either side of the soundboard without holes to drill or tools. Features include active direct box which includes a 9-volt battery or phantom power, 1/4" monitor output with variable level, balanced, XLR main out with ground lift and output pad switch (0db/-12db). Includes piezo crystal for piano/harp.

Features & Benefits:

Unique sensor technology reproduces full frequency range with perfect amplitude balance, superior feedback rejection, and complete isolation from ambient sounds even keyboard and pedal noise!
Safely and easily attaches to either side of the soundboard without tools - or holes to drill!
For grand pianos/pianos, it works better with it open a little, but it still works with it either open or closed.
Features a 1/4" monitor output with variable level, XLR main out with ground lift and -12db output pad switch.
Operable with either 9 Volt DC battery (included) or phantom power.