The next generation of PreSonus audio interfaces, the Quantum ES 4 is the culmination of nearly 30 years of PreSonus expertise, providing the ultimate...More
The next generation of PreSonus audio interfaces, the Quantum ES 4 is ...
Simplicity is the HP4’s hallmark. You get left and right line inputs, left and right line outputs with level control, and the four headphone outs.More
Simplicity is the HP4’s hallmark. You get left and right line inputs...
