Sweetwater InSync
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Console reviews and how-tos recommended on Reddit.
More resources on Mixing Consoles
soundonsound.com
Sound On Sound is a long-running audio recording magazine and website. It publishes in-depth tutorials, gear reviews, and practical how-to articles on recording, mixing, mastering, microphone technique, DAWs, plugins, and studio setup.
Allen & Heath Learning Portal
Allen & Heath's official training hub for its digital mixing consoles, with self-paced video tutorials and certification courses covering dLive, SQ and Avantis. Useful for learning channel routing, scene management and console configuration on these specific desks.
Yamaha Pro Audio
Official resources, manuals, and training for mixing consoles.
mixonline.com
Mixonline.com is the online home of Mix Magazine, a professional audio trade publication. It features news, reviews, feature stories, and buying guides about mixing consoles, studio and live sound gear, and audio production technology.