OBRIEN AMPLIFICATION

Tim O'Brien became tired with channel switching amps where you either have A or B and nothing in between. He sat down and designed the first Obrien amp which used the patented Obrien Variable Gain. So instead of flipping a switch between two channels, an Obrien amp gives you everything in between. Obrien produced head units, combo units, and speaker cabinets. It appears that O'Brien is not producing amps anymore.