Synth Audio Club in Chula Vista specializes in synthesizers and audio equipment from a storefront at 74 J Street in the 91910 zip code, stocking hardware synthesizers, drum machines, and signal-processing gear for electronic musicians and producers. The niche inventory targets the same South Bay music-production community that purchases guitars, amps, and recording gear at Harper's Music Store on H Street. Product categories span analog and digital synthesizer modules, MIDI controllers, audio interfaces, and studio monitoring equipment. The J Street location sits within walking distance of Chula Vista's civic core, positioning the shop near the performing-arts and education corridor where programs at School of Rock channel students into instrument ownership. Featured hardware includes voltage-controlled oscillator modules, multi-mode filter units, and step sequencers compatible with Eurorack-standard 3U rack formats and 3.5mm CV/Gate patching.