Barely used MiniDSP 2x4 HD and UMIK-1 signal processor/electronic crossover and measurement microphone. Purchased in 2021 for a speaker project it took much too long to finish.... used for a couple of months in 2024. Works flawlessly, except for the original wall wart that had to be replaced (replacement included; original discarded with extreme bias). All original boxes and parts included. $200 shipped to the USA. You will need a license for the software, which I can transfer to you after purchase (MiniDSP allows transfer).
