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Tubes and Subs.

Last post 11-07-2009 9:43 AM by Oblio. 18 replies.
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  • 11-07-2009 8:03 AM In reply to

    • Coytee
    • Top 25 Contributor
    • Joined on 04-17-2004
    • Knoxville, TN
    • Posts 8,569

    Re: Tubes and Subs.

    Bendrx:
    The farm obsession and complete lack of intelligence that followed is disturbing an akin to something I would expect to find on a honda forum

    Uh oh...I live on a farm and drive a Honda...Huh?

     

  • 11-07-2009 8:11 AM In reply to

    • Coytee
    • Top 25 Contributor
    • Joined on 04-17-2004
    • Knoxville, TN
    • Posts 8,569

    Re: Tubes and Subs.

    I'm just curious here...

    Is it even fair to have some of these analogies (I'm talking about amps, not pigs, lips and roosters)

    Isn't it more appropriate to talk about the number of volts an amp produces?

    I harken back to my Jr. High School days when I took an electrical shop class...  I seem to remember that watts was more a unit of dissapation of heat?

    Something like, I have a 1,500 watt heater (which would put out more warmth than a 500 watt heater)

    I would rather hold a bare, lit 40 watt bulb in my hand than a 350 watt bulb in my hand.  Isn't the wattage rating on a speaker more in line with how much heat it can dissapate?  Furthermore, isn't that heat generated by an input of volts?

    You all discuss this, I've got to leave shortly & prepare the morning slop.

    Dog

  • 11-07-2009 8:29 AM In reply to

    Re: Tubes and Subs.

     Power describes a relationship between voltage, current and resistance (or impedance, when it varies with frequency) P=IE, P=(E^2)/R, and P=(I^2)R. The musical waveform is seen as a varying voltage amplitude at the amps output. The rub is that the amp needs to supply enough current to keep the power from sagging, which can be a difficult task when presented with a low impedance load.

  • 11-07-2009 9:43 AM In reply to

    • Oblio
    • Top 500 Contributor
    • Joined on 06-06-2007
    • Macon Ga
    • Posts 395

    Re: Tubes and Subs.

    Coytee:

    I'm just curious here...

    Is it even fair to have some of these analogies (I'm talking about amps, not pigs, lips and roosters)

    Isn't it more appropriate to talk about the number of volts an amp produces?

    I harken back to my Jr. High School days when I took an electrical shop class...  I seem to remember that watts was more a unit of dissapation of heat?

    Something like, I have a 1,500 watt heater (which would put out more warmth than a 500 watt heater)

    I would rather hold a bare, lit 40 watt bulb in my hand than a 350 watt bulb in my hand.  Isn't the wattage rating on a speaker more in line with how much heat it can dissapate?  Furthermore, isn't that heat generated by an input of volts?

    You all discuss this, I've got to leave shortly & prepare the morning slop.

    Dog

     

    Volts simply expresses the force of the current aka Electromotive Force (EMF) which is what causes the current to flow.  It is the current that does the work, be it Electrodynamic (causing the voice coil to move in the magnetic field) or thermal (causing the coil to heat up).

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