Grado Labs - PS1000e
Model Name: PS1000e Audio Specs: Transducer Type: Dynamic Operating Principle: Open Air Frequency Response: 5 - 50,000 hz SPL 1mW: 99.8 dB Normal Impedance: 32 ohms Driver Matched dB: .05 dB Included Accessories: Headphones, Warranty, Grado ......