Check the listing for details. miniDSP Flex Unbalanced RCA 2x4 Digital Signal Processor. Condition: New. Listed at 528.98 USD. The front panel features an OLED display and a user-friendly volume control/encoder knob, ensuring effortless management. True to miniDSP's tradition, the Flex series is packed with proven audio processing functionalities, including versatile parametric EQ, IIR & FIR filters, crossovers, advanced biquad programming, and channel-specific delay adjustments. Notably, all platforms can be conveniently software-upgraded with Dirac Live®, the world's leading room correction system for achieving precise tuning across the entire range (20~20kHz). From serving as a compact digital stereo preamp to seamlessly integrating and optimizing subwoofers, as well as catering to active speakers, home theater systems, and recording studios, the miniDSP Flex offers a wide array of applications. Your imagination is the only limit!