OBRIEN AMPLIFICATION
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OBRIEN AMPLIFICATION
Amplifiers previously produced in Minneapolis (Columbia Heights), MN, during the 2000s.
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.

From Blue Book Publications:


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