I use the new Ratphones Max, they are awesome!!
Detect USA has new model
RatPhones MAX
*Back to classic black color.
*New knob-less sealed controls truly stay where you set them last.
*New wiring prevents controls from loading circuit.
*Dual volume standard, one model fits all applications.
*Full time low distortion soft limiter.
*No limiter switch needed. Minimal affect on low/medium signals.
*Increased audio brightness.
*Same detachable reversible cord requires no compatibility switch.
*Same full size, high isolation, pro-leather, foldable muffs.
*Same military grade Teflon wiring.
*Same Pro-leather ear pads.
*Same full sized 28 db cup.
*New felt speaker grill.
Input max 500mW.
121db @1Khz sensitivity.
300 ohm speakers (150 ohm total impedance for entire frequency band).
20Hz - 20kHz frequency response (tested with IEC 318 artificial ear).
28db isolation.