Two P-BACO-2V20 output boards and two P-BACB-2V20 bias boards. The bias boards are only available in this set. Populate this set with your components and the P-BAGS-1V20 gain stage, then add your own power supply, chassis and heat sinks to complete the BA-2 amplifier in the 3 output pair per channel configuration recommended by Nelson Pass. If you want more output devices order another pair of output boards here.
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