Source Audio has released the Zio Analog Front End + Boost. Zio is an all-analog preamp/boost pedal that includes a choice of four distinct preamp circuits, each with up to 20dB of additional output boost. Zio is Source Audio’s first all-analog effects pedal and designed in collaboration with Christopher Venter, the owner and sole engineer at Shoe Pedals and creator of the Looking Glass pedal from DOD. The word Zio is an acronym for impedance (Z is the electrical symbol for impedance), input (I) and output (O). The pedal is designed to take a guitar’s high impedance signal, sweeten the tone with any of its four preamp circuits and output a strong, low-impedance signal that won’t be altered by the buffered dry tones of effect pedals further down the signal chain.