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  1. #1
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    Rebuild low end computer speakers

    I bought some Inland Pro Sound 2000 speakers from a thrift store.

    It is an amplified system putting out about 7 watts.

    They sound pretty poor.

    I remember making my own 8 ohm speakers years ago using a woofer, midrange, tweeter, and a cross-over network.

    Can I do that also with this system?

    Thanks.

    - - - Updated - - -

    I found this.

    http://www.learningaboutelectronics....rk-circuit.php

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    Re: Rebuild low end computer speakers

    The reviews on Amazon have 31% saying the speakers are garbage.

    I highly doubt that such cheap speakers have any kind of woofer, mid, tweeter arrangement, it's probably a tiny single cone with the equivalent of a refrigerator sized permanent magnet and a tiny weak voice coil.

    If you want decent speakers either make your own like you did before or buy good speakers instead of something from a thrift store (there is usually a good reason stuff ends up in a thrift store).



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    Re: Rebuild low end computer speakers

    Could you or someone help me find

    this part I will need ?

    2.55mH Inductor



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    Re: Rebuild low end computer speakers

    I had a speaker with a 10 inch woofer. The crossover coil was made from several feet of wire, wrapped around all fingers of a hand.
    So it was 3 inches diameter. 1/3 inch long, about 120 turns. Air-coil.

    This online calculator tells me it's 2000 uH (2mH).

    http://www.daycounter.com/Calculator...lculator.phtml



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    Re: Rebuild low end computer speakers

    I need help finding a place that sells it.



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    Re: Rebuild low end computer speakers

    The cheap little speakers have a single driver that is only 3.5" in diameter so it produces no bass and a very uneven high end. Each speaker amplifier is only 3.5W so the loudness is only a little more than a cheap clock radio.
    A very simple passive crossover is an inductor in series with the woofer to prevent it from shrieking, and a capacitor in series with the tweeter to prevent it from being destroyed by low frequencies.
    A cheap woofer and tweeter can also sound bad.

    I purchased crossover inductors from a local high price speaker manufacturer until my latest speakers did not sound good. I went to their showroom and heard that their latest speakers also did not sound good. I showed them that their inductors did not have their rated inductance.


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    Re: Rebuild low end computer speakers

    I am trying to find a ready made speaker system that includes woofer, mid range and tweeter speakers.

    No luck so far.

    Just systems with a sub-woofer ?



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    Re: Rebuild low end computer speakers

    Many stereo sound systems are made with a ported woofer called a "sub-woofer" and two satellite speakers. Some of them sound pretty good. A midrange speaker is not needed if the tweeter can do it. For a woofer to perform well down to about 50Hz it must be high quality and have a size of at least 5". Years ago I had speakers with a 4" woofer with a 1" dome tweeter that sounded good when I added bass boost but the woofers burned out after about 10 years.



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