In an upcoming article as part of my occasional Trust But Verify series in Recording Magazine, (guessing around the February or March 2018 issue) I described how a digital multimeter (DMM) could be used for measuring some parameters of audio equipment. Since not every musician or recording hobbyist following this series already owns a DMM, I thought that some guidance in choosing one might be useful, hence this article. Since I hadn’t looked at the marketplace since I bought my meter more than 30 years ago, I reached out to Circuit Specialists, a knowledgable and friendly distributor of electronics tools and parts, and got the loan of three DMMs costing less than $50 to evaluate.
Now I think that everybody finding his or her way to this web site should have a DMM. So if you want to join that club, here’s some background information which will help you understand some specifications and terminology that aren’t common beyond the area of electronic test equipment.