Dr Scientist The Spectrum Analyzer (Used) Jack Plates • Runs on PSA-series AC

• Runs on PSA-series AC adaptor or three AA-size batteries

Mono barrel jack made by Switchcraft for guitar or bass with nickel finish

Performs well and sounds great but some faders are a little crackly and there are a few keys with minor volume discrepancies

with no major damage and only one noticeable ding (see pictures) on the instrument

but the Mezzo stills delivers a powerful low end

Dr Scientist The Spectrum Analyzer (Used) Jack Plates • Runs on PSA-series ACUsed Dr Scientist The Spectrum Analyzer in great shape. Sold with the original box. From Dr Scientist: "The Spectrum Analyzer is a visual device which reads audio information and displays it in 7 frequency bands, from 63Hz to 16kHz, represented by classic LED Bar Graphs. It reads information from any source that can be plugged into ita computer, a guitar, a synth, a cellphoneor it can read the sound around it through a built in microphone. Like all