The miniDSP Flex Unbalanced (RCA version) is part of miniDSP’s third-generation Flex series. It uses a powerful 400MHz Analog Devices SHARC DSP processor to provide advanced audio tuning and room correction capabilities for stereo and subwoofer systems. The unit is especially popular among home theater enthusiasts and audiophiles for integrating subwoofers, creating active crossovers, and optimizing room acoustics.

Unlike traditional equalizers, the Flex provides full DSP control including parametric EQ, FIR/IIR filters, delay adjustments, crossover configuration, and optional Dirac Live room correction. It also includes modern connectivity such as Bluetooth LDAC, USB audio, optical, and coaxial digital inputs.