Quest was an audiophile specific electronics company here in St Louis. They made shelving equalizers, pre-amps, and the power meters that read amp output in watts, db's, and amp current that were read adjustable in powers of 10-100-1000 with adjustable speed of read output for real time, average or peaks. I had all 3 Quest products in my system at one time, but they bought back all the originals (for the owner) and built me the current LED meters that I have before they closed up shop sadly.
