Genuine Eminence 

PX CROSSOVERS FEATURE ADVANCED CIRCUIT DESIGN TO BOTH PRESERVE THE CROSSOVER AND YOUR HF DRIVERS. A COMMON CROSSOVER PROBLEM IS L-PAD FAILURE BROUGHT ABOUT BY WINDING BURNOUT WHEN MAXIMUM ATTENUATION IS PROLONGED. FULL ATTENUATION CONCENTRATES THE MAXIMUM VOLTAGE DROP IN A SMALL WINDING AREA - A POTENTIALLY DAMAGING STATE EVEN WITH HIGH POWER L-PAD DEVICES.

IN PX CROSSOVERS, CURRENT IS LIMITED WHEN THE HF LEVEL CONTROL IS SET TO '0' ON ITS SCALE (MAX. -9dB ATTENUATION). A SECONDARY BENEFIT OF THE DESIGN IS TO FORM A VOLTAGE DIVIDER ACROSS THE HF DRIVER. THE HIGH PASS PROTECTION USES CUSTOM-BUILT AEROSPACE LAMPS AS POSITIVE TEMPERATURE COEFFICIENT SERIES VARISTORS. THE TUNGSTEN FILAMENTS EFFECTIVELY TRACK THE PROGRAM MATERIAL, DYNAMICALLY MAINTAINING A SAFE MAXIMUM CURRENT LEVEL TO THE HF DRIVER WITHOUT INTRODUCING DISTORTION. THIS CIRCUITRY PROVIDES SMOOTH 3:1 ANALOG COMPRESSION DURING INPUT OVERLOAD CONDITIONS OVER 250W RMS. AT FULL DRIVE LEVEL APPROACHING CLIPPING, THE ELECTRICAL ATTENUATION TO THE PROTECTED HF DRIVER IS -4.5dB. IN EVERY WAY, EMINENCE PX CROSSOVERS ARE A TECHNICALLY SUPERIOR PRODUCT.