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Three amp-industry heavyweights demystify two of the most overlooked (and deceptively simple-seeming) factors at the end of your signal chain.
Exclusive downloadable ebook.
Must-Know First-Aid • 101-Level Mods • Bonamassa’s Under-the-Radar Faves
How tube amps work, tonal characters of the most common power tubes, and how to replace speakers properly.
Build your own rotary speaker, replace your output transformer, must-know shopping advice on bass-amp power sections from Ashdown’s Mark Gooday, and more.
Fryette and Sound City guru Steven Fryette unpacks must-know amp-modding basics, while EAST Amps’ Jeff Bober guides you through upgrades to three classic combos.
Troubleshooting advice, speaker basics, in-depth tips from Celestion and Weber gurus, and a look at seven vintage “sleepers” that rule.