A personal multi-effects processor for electric-acoustic guitars! Since its introduction, the Pandora series has been acclaimed by guitarists and bassists for its high-quality sound, versatile functionality and superb operability - all in an amazingly compact package. Now, the new Korg PX4A joins this impressive series. The PX4A is a guitar effects processor designed specifically for electric-acoustic guitars. It can transform a piezo output, which has a tendency to be sterile-sounding, into many warm, deep, rich and natural acoustic guitar body tones. The PX4A is a great choice not only for practicing, but also for any situation that demands a great sound, including recording and live performances.