 | Accommodates up to two signal processors (crossovers, limiters, or EQ) for two-rack-space PowerLight amplifiers with DataPort. |
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 | Accommodates one signal processor (crossover, limiter or EQ) for PLX, CX and DCA amplifiers. XF-1 input transformers may also be added. (Not compatible with PLX2 models) $56.00 |
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 | Accommodates UF-3 filter for PL 3.4, PL 3.8x and PL 4.0 amplifiers. $56.00 |
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