DRIVER:  American Lou's 22955/29689/31736 (5 units, 3 frequency divisions, 3 catheters)

 FREQUENCY RESPONSE:20Hz-20kHz

 IMPEDANCE: 16Ohm @ 1 kHz 

 SENSITIVITY: 113db @ 1 kHz 

 DISTORTION:＜3% @ 1 kHz 

 NOISE ISOLATION: -26 dB +/- 2

 INPUT CONNECTOR: 1/8" (3.5 mm) Gold Plated Jack

 CABLE: EN-S2C single crystal copper silver-plated wire, 2-pin, detachable, hanging ear wired

 Price: public model 5299, private model 5899