אוזניות אולפן PreSonus HD7A   Acoustic Design : Dynamic, semi-open Driver : 50 mm, neodymium Frequency Response : 10 Hz to 30 kHz Sensitivity : 98 dB SPL (1 mW) Maximum Power : 300 mW Rated Impedance : 32Ω Earpad : Leather Weight, without Cable : 222g Cable : 2.5m straight, single-sided Plug Adapter : 1/8″ to 1/4″ (3.5 to 6.3 mm), screw-on, gold-plated, stereo mini-plug