QSC DSP-30 Audio Computer Configurable Digital Signal Processor Equalizer Featuring intuitive PC system configuration combined with set-and forget" convenience, the QSC DSP-30 unites easy-to-use, customizable, two channel digital signal processing (DSP) with a simple preset selection interface that requires only two buttons. It can be used with all amplifiers and is housed in a 1RU, 19" rack mount steel chassis. Sampling frequency is 48 kHz with 24-bit resolution. Dynamic range is greater than 95 dB. Rugged and dependable in the spirit of all QSC professional audio products, the DSP-30 is well suited to a variety of applications including mobile DJ, club PA and pro touring.