sub out to passive or active sub?

Discussion in 'Archived Threads 2001-2004' started by Alfonso, Nov 26, 2002.

  1. Alfonso

    Alfonso Agent

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    I have an old receiver with a RCA sub out but I don't know if it is intended to be connected to an active or a passive sub. Is there a way I can figure it out, with a multimeter maybe?
    What would happen if I connected an active subwoofer to an output made for a passive sub?

    Thanks.
     
  2. John Garcia

    John Garcia Executive Producer

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    A preamp output cannot be used for a passive sub, period. Preamp outpus REQUIRE that you have external amplification, without which you will get no sound.

    There is no such thing as a pre-amp (RCA) output that would be "dedicated" to a passive sub. Passive subs require speaker level (wire) input, as I stated in the previous question of yours.
     

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