Can the DSP-3 and DSP-4 be used with non-QSC equipment?
Yes! Both the DSP-3 and DSP-4 can be used as stand-alone 2-channel digital signal processors. To accomplish this, you would need an external power supply (such as the QSC DPX-1) and we recommend a suitable mounting surface such as the DPX-4 Accessory Mounting Bracket. Both units provide line level balanced and unbalanced audio I/O. Simply patch the processors inline as you would typically use any signal-processing device. The RS-232 port is your gateway for controlling these processors from your computer.