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  1. #1
    AR Newbie Registered Member
    Join Date
    Apr 2008

    Portable Device DIY Speakers

    Ok, so my sales manager at work decided to chuck his monitor which had died, i noticed hey there is a pair of speakers inside of the monitor, so i pulled them out. they have a black and red wire attached to each speaker (x2). I figured to myself that i could take these speakers wire them up to a headphone plug and run them from my phone or psp like a homemade iHome. the speakers state on the back US - 2W (guessing that means 2 watts RMS). So i wired one speaker up and tried it on my cell phone and there was barely any volume, same goes for the psp. then i tried my laptop and maxed the volume on that as well and still nothing substantial. I would like assistance with how i could nataurally increase the volume without providing a power source.

    Someone at where i work stated about putting a resistor in for load or something, im at a loss cause i know nothing about wiring past the standard speaker and amp wiring. No power source would be great cause then it would be portable 100 percent. I figrued this shouldnt be to hard since there speakers are very small like maybe half inch diameter. I would like just enough power out to listen to it in say an office or at my kvm bench at work while building new computers.

    if need be i could use a 5v plug i have from an old hub. assistance would be great thanks

  2. #2
    Crank it up, dude! huh? hydroman's Avatar
    Join Date
    Jan 2007
    Chesapeake Beach MD
    No - not a resistor.

    Hook both speakers up in parallel (both reds together and both blacks together).

    Note: This will be in effect a 1 ohm load to the phone or PS. It 'may' damage the amp section - so be careful. What you are doing is trying to drive a 'big' speaker with an amp designed for a very small speaker (headphone).

    Really, you need powered speakers to hear them well at all. No Free Lunch (power-wise, eh?)
    H/K AVR635 7.1
    Denon DVD900
    AE AEGIS III Mains
    ION USB Turntable w/ Shure M97XE
    15" Titanic III Sealed Enclosure Sub
    Dayton Rackmount 1000W :O
    Denon Surrounds
    Sony Bravia KDL40S2000

  3. #3
    I took a headstart... basite's Avatar
    Join Date
    Jul 2006
    Mortsel, Antwerp, Belgium, Europe, Earth
    that's because your cellphone/Ipod/... was designed for use with small headphones.

    2watts is a gigantic amount of power for the amps in the cellphone/ipod.

    get headphones, or a set of powered speakers. or a set of passive speakers, with a real amp.

    Keep them spinning,
    Life is music!

    Mcintosh MA6400 Integrated
    Double Advent speakers
    Thiel CS2.3's
    *DIY Lenco L75 TT
    * SME 3012 S2
    * Rega RB-301
    *Denon DL-103 in midas body
    *Denon DL-304
    *Graham slee elevator EXP & revelation
    *Lehmann audio black cube SE
    Marantz CD5001 OSE
    MIT AVt 2 IC's
    Sonic link Black earth IC's
    Siltech MXT New york IC's
    Kimber 4VS speakercable
    Furutech powercord and plugs.

    I'm a happy 20 year old...

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