DIY Marshall Middleton-style portable Bluetooth speaker using ADAU1701 SigmaDSP, ESP32-WROVER with LDAC/aptX/AAC support, TPA3116 + TPA3110 Class-D amps, and live EQ tuning via I²C. CY7C68013A used as DIY USBi programmer. Currently in design phase — hardware build coming soon.
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Updated
May 1, 2026