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American Sub

Discussion in 'Subwoofers' started by stonking, Mar 30, 2005.

  1. stonking

    stonking
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    Hi all. I might buy a sub second hand from the US. Troble is it's 120v 60 hz. Is there a handy transformer that anyone knows about to fix this? Does the 60Hz bit really matter?

    Regards
     
  2. kbfern

    kbfern
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    The transformer will depend on the wattage that the amplifier uses,butyou can get step down transformers from Maplin and other sources in the UK.

    I would think that you would need a transformer of at least 200/300 va(volt amps) but as I said this depends on the amp in the sub.
     
  3. kbfern

    kbfern
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    By the way I have a US sub made by Atlantic Technology (bought while I was living in the US) and the voltage is switchable.I would check, yours may be too.
     
  4. rOAdeh

    rOAdeh
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    Getting a decent transformer that has a clean output that can supply your sub with enougb power during even the most difficult transients may prove both difficult and expensive.

    Definitely something to look into properly before plunging in with both feet
     
  5. stonking

    stonking
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    Thanks for the prompt replies. I have checked and it does not have a 120V 240v switch. As for clean supply, I have no idea. I think transformers are quite good (no moving parts). Any views on the 50 / 60 hz bit? Does a transformer change that as well?
     
  6. Ian J

    Ian J
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    And also could give rise to the dreaded hum too
     
  7. eviljohn2

    eviljohn2
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    It really depends on how well designed the power supply is. The transformer is unlikely to change the frequency unless you buy a complete regeneration unit which is very expensive.

    Using a 50Hz unit on a 60Hz supply should cause no problems at all but using a 60Hz unit on a 50Hz supply can lead to a substantial amount of mains hum. Naturally, Americans have never noticed this (since imported stuff to there will work fine) but it can be a problem here if the designers didn't consider it. :)
     
  8. lowrider

    lowrider
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    I dont think the 60hz is an issue unless the gear has motors...

    Actually I brought a complete system from Canada 20 years ago, and used it with a transformer for many years...

    The transformer was a bit noisy because I had to have a really big one custom made to handle the McIntoshes... :rolleyes:
     

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