- Superlux HD-330 Pro 150 Ohms studio headphones - semi open, over-ear, dynamic, 93 dB SPL, 40 mm drivers, neodymium, 150 Ohms impedance, frequency response 10 - 30000 Hz, one sided cable run, cable with 3.5mm stereo jack and adaptor 6.3mm, straight cable in 2,5m length, weight 315 g EUR 38.00 - See more - Buy online