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Audio Research Accessories

3 Active crossovers

4 Vacuum tubes

1 Expansion boards

Active crossovers (3)

Audio Research EC2 - Active crossover
Audio Research EC-4 - Active crossover
Audio Research EC22 - Active crossover

Vacuum tubes (4)

Audio Research BL1 - Vacuum tube
Audio Research KT-91 - Vacuum tube
Audio Research VT200 - Vacuum tube

Expansion boards (1)

Audio Research PC-3 - Crossover frequency board

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