About This Site

I'm Eli Stowe. I'm a musician, an audio engineer, and an audio electronics designer. I've spent the last 15 years working with amps, speakers, and the circuits between them — from the rehearsal room to the workbench.

SpeakerOhms.com exists because these are the tools I want for myself. I've wired cabinets, specced speaker replacements, troubleshot impedance mismatches at gigs, and answered the same questions about tube amps and output transformers dozens of times in music shops. The tools that existed online were either too generic (built for car audio, not guitarists), too bare (just a formula with no context), or too broken to use on a phone.

So I built the tool I wished I'd had — one that speaks the language of someone standing in front of a guitar amp with a question and a cable in their hand. The calculator does the maths, but more importantly, it tells you what the number actually means for your specific amp and cab setup. Tube or solid-state. Safe or risky. And why.

Background

• Experience15 years in audio electronics — circuit design, speaker systems, amplifier matching, and signal chain architecture
• EducationBachelor of Audio Engineering
• IndustryProfessional experience in music retail — technical advising on amplifiers, speaker cabinets, impedance matching, and speaker replacements
• DesignActive circuit designer working with speaker-level signals, relay switching, and tube amplifier output stages
• PlayerGuitarist. Everything on this site comes from problems I've actually had to solve with my own gear

What This Site Is For

This is a place to store some of the knowledge I've built up about amps and speakers — and to make it useful for other guitarists and bass players. The calculator is the core tool, but the guides around it are where the real value is. Impedance isn't complicated once someone explains it in plain language with real examples. That's what I'm trying to do here.

Every article on this site is written from the perspective of a musician who also happens to understand the electronics. I'm not writing for audio engineers — I'm writing for the guitarist who just bought a second cab and needs to know which output jack to use before soundcheck.

If something on the site is wrong, unclear, or missing — I want to know. This is a living resource and I plan to keep expanding it.