Tube Amplifiers
howdy2bub asked:

the amplifier tube 25 watts you? set of speakers should I choose this? that? pi? easy to push the 4 or 6 Ohm 0hm. thanks.


1 Comment so far

  1. cezar t on December 26, 2009 2:49 am

    It is not a matter of pushing.First you have to see the output impedance of your amp.If it is 4ohms then you will be able to use the full power of the amp with a 4ohms speaker,this means that a pair of 4ohms speakers have 2ohms in parallel(not good) and 8ohms in series(good but not reach the full power of the amp).If you want to use 2 speakers you mast match the impedance with the amp(for 4ohms use 2 speakers with 8ohms impedance connect in parallel).
    To calculate the impedance use this:
    1/Rout=1/R1+1/R2+……..1/Rx for parallel
    Rout=R1+R2+………Rx for series

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