1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

Watts and Ohms

Discussion in 'Amps and Cabs [BG]' started by werbo1, Sep 19, 2004.

  1. First off i used the search feature to try to find answers and didn't find them. Second if you used the search feature just to tell me to use it, u wasted your time.

    The Question: Basically i want to know what Ohms and Watts are equal to. I know (think) more watts = a louder amp. Oh, I'm talking about Combo amps. So if i have a combo amp would i have to worry about ohms and watts??

    Second Question: What is a safe "knob" to turn the volume to without blowing the amp? I'm pretty sure playing your loudest will blow it. Also can some1 explain to me the whole process of a preamp (head), and speaker?

    Edit: Also, how do i know how many ohms i'm putting through the amp and how do i know how many watts i can put through say a speaker with X ohms.

    When it comes to this stuff i really neveer bothered to learn it when i started playing. I guess now is the time to clean up my knowledge. Thanks in Advance
  2. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    Not true. Watts measure power but they don't measure loudness, which is measured in decibels. How loud an amp will play is determined by the combination of the amp power in watts and the speaker sensitivity quantified by dB per watt, as well as the speaker frequency response. Watts by themselves tell you virtually nothing.

    Distortion will usually tell you it's a good idea to turn down from whatever setting you're at.

    I don't know what you mean.

    You don't put any ohms through an amp. Ohms is the measurement of a speakers impedance. The impedance of a speaker does not tell you how much power it can be run with; the wattage rating does.

    That's a common symptom. You don't need an engineering degree to be a competent musician, but you should at least have a basic idea of how your equipment works. Read a book on the subject; there are dozens out there.
  3. IvanMike

    IvanMike Player Characters fear me... Supporting Member

    Nov 10, 2002
    Middletown CT, USA