Presonus HD9 Professional Closed-back Studio Reference Monitoring Headphones

The HD9 is a closed-back studio reference headphone for tracking, mixing, and checking work outside the control room. The closed-back circumaural design provides strong listening isolation and reduces bleed into the microphone, which matters when a vocalist tracks with a loud mix or when you are working next to someone who does not want to hear it. Performance comes from 45 mm dynamic neodymium drivers with high power handling of 1,800 mW at 40 ohms, 900 mW per channel, delivering loud, clean audio that minimizes listening fatigue. Tailored frequency response runs from 10 Hz to 26 kHz within plus or minus 3 dB, with accurate low-frequency reproduction, so bass decisions made on the HD9 hold up elsewhere. Sensitivity is rated at 96 dB, plus or minus 3 dB. Comfort is handled with an adjustable headband, cups that rotate 180 degrees on two axes, and durable ear pads, and the straight ten-foot cable drops down one side so it stays clear of your hands. The result is a headphone you can wear through a long session, and the build holds up to travel. Checking mixes on quality headphones has become part of the job as more listening moves to portable devices, and the HD9 gives you that reference point alongside your monitors. A gold-plated 1/8-inch to 1/4-inch adapter and a storage bag are included.