The Radial Tonebone PZ-Deluxe Acoustic Preamp gives you all the stage tools necessary to ensure your favorite dreadnought, cello, violin, or other acoustic instrument is heard loud and clear at the gig. Sporting studio-quality features like a three-band semi-parametric EQ, a low frequency filter with three settings, and 180-degree polarity reverse switching, this little box smoothes out hot spots and peaks. If you've got a piezo on deck, the PZ-Deluxe even includes a dedicated PZB gain stage for an input impedance of 10 meg-ohms for warm, consistent tone through the whole gig.