HAFLER DH-220 DH-222 ORIGINAL BRIDGING KIT LESS MOUNTING BRACKET. THIS KIT MAY BE INSTALLED IN THE DH-220 AMPLIFIER TO ENABLE EASY CONVERSION TO A HIGH POWER MONOPHONIC AMPLIFIER, BRIDGING THE TWO CONVENTIONAL CHANNELS TO A SINGLE FLOATING OUTPUT WHICH CAN DELIVER UP TO 450 WATTS INTO AN 8 OHM LOAD. THE DESIGN IS CLEAN AND EFFECTIVE, USING FULLY PASSIVE COMPONENTS. THERE ARE NO EXTRA SEMICONDUCTORS TO FAIL OR ADD NOISE AND DISTORTION. CONVERTS THE RIGHT CHANNEL INTO AN INVERTING AMPLIFIER, PRECISELY TRACKING THE LEFT CHANNEL 180 DEGREES OUT OF PHASE. AS ALWAYS, THANKS FOR LOOKING . MOUNTING L BRACKET MISSING AND YOU WILL HAVE TO FABRICATE YOUR OWN