PreSonus Quantum ES 4 audio interface Source Audio These three series of effects

These three series of effects can be independently switched on/off

and other effects for a polished

with no menus in sight

RETURN jack: 1/4-inch phone type

PreSonus Quantum ES 4 audio interface Source Audio These three series of effectsCapture your creativity with the Quantum ES 4. The next generation of PreSonus audio interfaces, the Quantum ES 4 is the culmination of nearly 30 years of PreSonus expertise, providing the ultimate recording tool for musicians and content creators. FEATURES High Performance Signal Flow Custom low latency drivers and low noise converters. All New MAX HD Mic Preamps The culmination of 30 years of innovation, our rigorously redesigned preamps feature