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Connecting a Passive Sub

Discussion in 'Subwoofers' started by F0xy, Aug 5, 2004.

  1. F0xy

    F0xy
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    Hey,

    I have a cambridge audio A1 Amp, which has 2 channels on the back, of which im using both ( Left and right speaker ). How could i connect my passive sub woofer to this?

    ( Attahced Diagram )

    Thanks

    F0xy
     

    Attached Files:

  2. Nimby

    Nimby
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    Hi FOxy


    I couldn't see any attachment I'm afraid. So I'll guess what you meant.

    Can we assume you are listening to stereo only with two speakers and your Cambridge Audio amplifier? :)

    Your passive sub can go on either channel. Left or Right. But not both. Or you'll make your stereo sound into mono and might harm the amplifier as well.

    Running a passive sub can make your amplifier run hot. Because of the low impedance when two speakers are running in parallel. (that just means sharing a channel)

    You should avoid turning the volume up high untill your have checked repeatedly for at least half an hour whether your amp is getting hot when playing music or film sound. If it does get hot it's a bad sign. You'll either have to turn down the volume all the time. Or start saving for an active (powered) sub. I ran two big passive home made subs with an old A&R A60 and it used to get red hot! Slowly it got quieter and quieter over a couple of months until I gave up using the subs altogether! :blush:

    You should connect your sub just like an ordinary speaker. Attach it to the same speaker terminals as one of your ordinary speakers. Using speaker cable. A passive sub is an ordinary speaker except that it is better at bass.

    It might be an idea to connect it to the same speaker terminals as the speaker nearest a corner. (if there is one) This will help make the bass louder.

    If my guesswork is all wrong. Come back and tell us and we'll try again. :)

    Nimby
     
  3. F0xy

    F0xy
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    yeah exactly what i meant :)

    i thought you might be able to do this, but wasnt going to risk trying it incase something happened. so i thought i would ask an expert and you gave me the perfect answer. thanks!

    [​IMG]

    ( that was the image anyway )

    Thanks,

    F0xy
     
  4. Nimby

    Nimby
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    Glad I could help. Just be careful you don't fry your amp. :)

    Nimby
     
  5. F0xy

    F0xy
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    i dont really play things at a high volume, but ill watch out, ive always got the warranty and an excuse that it just happened ;) lol

    thanks

    F0xy
     
  6. Swifttech

    Swifttech
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    the only other way is to get a power amp and connect that to the pre-out on the stereo amp.
     
  7. F0xy

    F0xy
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    yeah i was told i could do that aswell :)

    btw do all subs have 'line in' and 'line out' connections for + and - ??


    thanks

    f0xy
     
  8. F0xy

    F0xy
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    -bump
     

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