Dynamic prosessor speaker management Phaselab Symphonie series Symphonie 2600: 2in 6out Symphonie 4800: 4in 8out DSP process, 96k 32bit sampling rate. fiture: gain, PEQ, Xover, limiter, delay, Support HPF and LPF with Butterworth\Bessel\Linkwitz-Riley. Input 4 x 1024Taps or output 8x 512Taps, FIR linear phase setting. Control connections: USB or IP/TCP or RS232 Nice GUI windows 8/10/11 software.