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Discussion in 'Amps and Cabs [BG]' started by Piezoman, Jun 18, 2005.
What is the difference between the 2 when an amp is being rated for power?
when talking about stereo amps or power amps bridged usually refers to running the amp in bridged mono mode. both sides of the poweramp are connected to function as one power amp.
in that case, each side of the bridged amp "sees" 1/2 the total impedance load of the cab(s). That's why an amp that is rated to 4 ohms minimum per side will only be rated for 8 ohms bridged, or an amp rated for 2 ohms minimum per side is only rated for 4 ohms bridged. you'll also notice that the amp puts out twice what it does into 4 ohms stereo into an 8 ohm load in mono, and twice what it puts out into 2 ohms stereo into 4 ohms mono.