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AR 2x how to replace crossover caps


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the original caps are in metal case


2MPDKR 2-2

2x2 MF

200 VDC

300 VT DC

to replace these,

what bi polar should I use (two 2 MF)???

how should these be wired???

update on surrounds,

original surrounds were not supporting causing much distortion,

treated them with permatex high tack sealant,

now they perform as new at any volume and good bass,

used DAP water tight roof sealant to seal the woofer frames to the cabinet,

thank you for any assistance on the cross over


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Wait for others to weigh in on this one, but in my experience, yes.

I 100% agree with Zilch! These oil-filled capacitors will last almost indefinitely so long as they are not seriously over-driven. The tin-plated capacitor cans are hermetically sealed; no chance for moisture to enter the structure. Also, these capacitors were remnants of the old post-war mil-spec versions that AR and KLH used in the mid-to-late 1950s and in the very early 1960s, and they are high-quality units. The presence of the oil-filled caps is further evidence that these AR-2s date back to the early 1960s; possibly even the late 50s.

The original owner most likely returned these early AR-2s to the factory to get the adapter plate and the 3 1/2-inch midrange driver to replace the old dual 5-inch Carbonneau drivers. While they were at it, AR probably installed the newer-style input-terminal plate on the back with the Aetna-Pollock level control.

--Tom Tyson

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