PreSonus HD9 Closed Cup Professional Headphones 100790182 Power linking: 30 units @

Power linking: 30 units @ 120V

C-tick N108

(6) Patented trigger latches

91 in / 20

Full-range frequency response

PreSonus HD9 Closed Cup Professional Headphones 100790182 Power linking: 30 units @PreSonus HD9 Closed Cup Professional Headphones When you need to do serious work without bothering anyone in your living space and without being distracted by outside sound, choose PreSonus HD9 headphones. They're clean sounding, extra comfortable, and offer a broad, transparent frequency response that ensures accurate mixing. The HD9s closed back acoustic design provides superior listening isolation and reduces headphone bleed, so you hear nothing