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help needed with choosing an amplifier

Discussion in 'AV Receivers & Amplifiers' started by sk11vengeance, Feb 4, 2005.

  1. sk11vengeance

    sk11vengeance
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    ok, i need help in choosing a good amplifier for my speakers at home for use with my computer. ive been using a car amplifer, rockford fosgate power 1000 with a power converter. its got a problem and i need to send it in to have it worked on which will probly take weeks. in the meantime, id like to find something more pratical and possibly better to use. i dont know a whole lot about all the latest and greatest so i was hoping to get some help. anyway, i need a good amplifier (and i am budget minded, i cant aford a 5 thousand dollar amp) to power my 10 speakers the car amp was powering. the details of them are: 6 4-way KLH floorstanding 300W max 8ohm 15" woofer speakers and 4 3-way KLH floorstanding 250W max 8 ohm 12" woofer speakers. i have a creative sound blaster audigy sound card in my computer which provides good quality audio playback so id need a amp to match it, and a 100+ s/n ratio. can anyone recommend an amp for all these speakers? thanks.
     
  2. the mechanic

    the mechanic
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    Don't really know of a suitable amp for your requirements, but can give you the number of a good hearing specialist if you want.
     
  3. sk11vengeance

    sk11vengeance
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    ok, what is it?
     
  4. the mechanic

    the mechanic
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    Was only joking M8, :D

    I just thought that with all them speakers, wired up to a monster amp would well you know, be a bit deafening :eek:

    Seriously though, have you thought about using a good AV amp and maybe cutting down the number of speakers to a more manageble level, say about 6 so as to get a better surround system. From what I can gather you had all 10 speakers wired up to a car amp so all you'ld get would be multiple stereo sound instead of "PROPER" surround, am I right?
    Also with all 10 speakers firing off at the same time,even though they are matching types/models the overall volume level should'nt be all that different from less speakers driven from a properly set up AV amp.

    Failing that and if you like the amount of speakers you are using, why not try multiple power amps ? You could wire them independantly to the sound card outputs and get better control than using a car amp ;)

    Let me know what you think, and good luck with the hearing test :laugh:

    All the best,

    Graham.
     
  5. sk11vengeance

    sk11vengeance
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    well, i dont have it loud all the time, and it can get pretty loud easily with 10 of those speakers. the car amps so powerful it can blow them all anyway i believe, so im always watching the volume. i actualy do have an AV amp, but its a crappy Technics but i still use it anyway from time to time. i also have 2 pioneer amps but they are old, well, one is, the other one is a 1990's model. and i would like to keep all the speakers and use them. the amps im speaking of are actualy wired independantly in addition to the car amp to the sound card. what kind of amps are you talking about exactly when you say multiple power amps? thanks, and i knew you were only joking =)
     
  6. the mechanic

    the mechanic
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    What I meant was if you could get hold of some stereo amps, (either intergrated or plain old power amps), maybe you can use some of the ones you already have ? and use them to power the speakers using the sound card as a pre-amp.
    You would need to set all the power amps to a specific volume so the sound is balanced for all speakers connected, then using the PC volume / soundcard it will increase the volume for each at the same rate.
    Finding the correct vol for each amp may well take some time and trial and error, but will be worth it in the end as you should be able to get a nice balanced sound.
    Hope this makes sense, I'm not the best in the world at explaining myself :blush:

    All the best,

    Graham.
     
  7. the mechanic

    the mechanic
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  8. sk11vengeance

    sk11vengeance
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    that first amp, the 12 channel one, is nice. i live in the US so im not sure if it will work on our power outlets or not. i think ours are 125v, cant remember exactly. i think i found the problem though for my car amp. it seems as though i was wireing my speakers up to it to present a 1.6ohm load instead of what i was thinking was 8ohm load. i had 5 on each side in paralell so im not sure on how to wire them up diffrently. still looking into that...
     
  9. the mechanic

    the mechanic
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    Hi,
    Have a look if there's any US suppliers for the NAD, or if there are any similar amps you can get over there.
    With regards to the car amp wiring :- if you are running 5 pairs in parallel, i.e 5 twinned cables from each amp output to the speakers then no wonder it's damaged it.
    I remember reading that wiring the speakers in series, i.e take the positive lead out of the amp to the first speaker,then the negative of that first speaker to the positive of the second, so on so fourth till all the speakers are linked, then the negative of the last speaker in the chain returns to the negative terminal of the amp does not put as much load on the amp.
    I still feel however that a purpose built multi channel amp will be a better solution for you.There will be less clutter, and you'll be safe in the knowledge that the speakers are being driven properly and wont run the risk of damaging your kit again.

    All the best with the hunt for an amp/amp's,

    TTFN

    Graham.
     

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