Amazing practice/studio amp

Discussion in 'Amps and Cabs [BG]' started by Paulabass, Sep 23, 2017.

  1. JimmyM


    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    Don't get carried away, bro :D Not quite.
    Stumbo likes this.
  2. JimmyM


    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    The heads themselves are usually around the 25 lb mark, and the cabs are the real variable. Some weigh in the 45-50 lb general range, some weigh close to 60. And then there's the dolly. So the weight can get up there on some of them.
  3. FingerDub

    FingerDub Inactive

    Jan 8, 2016
  4. JimmyM


    Apr 11, 2005
    Apopka, FL
    Endorsing: Yamaha, Ampeg, Line 6, EMG
    Well that number would vary by manufacturer according to how the amps are voiced, but the raw measure of a watt is 1 joule per second, whatever that means. And that's the same for tube amps as SS amps.
  5. FingerDub

    FingerDub Inactive

    Jan 8, 2016
    Fair enough, just IME, tube watts most definitely seem to go further than SS watts.
  6. J-Bassomatic


    Mar 30, 2017
    Canton OH
    And that's the way it ought to be
    JimmyM likes this.
  7. beans-on-toast

    beans-on-toast Supporting Member

    Aug 7, 2008
    Power = volts x amps

    Think of it as 1 Watt is the rate of work done when 1 amp of current moves through a potential difference of 1 volt. That doesn’t mean anything to most people.

    What makes more sense when comparing solid state and tube amps is appreciating the difference in the audio signal content.

    The fundamental frequencies generate harmonic content that can differ in solid state and tube amps. Tube amp signals are loaded with non-linearities (distortions) that act on this content in a unique way. These non-linearities come from more than just the tubes. The power supply, the output transformer, and the speaker all contribute to a complex interactive system. This is what makes them not sound the same even though their output power may be the same.

    Two people that weigh the same have very different things going on inside. You clearly need a different means of quantifying output power. Weight alone is not sufficient. Watts alone are not sufficient. The best we can do with our limited understanding is to call them tube watts and solid state watts.

    Mankind doesn’t have a cure for the common cold. There’s a lot that we don’t understand, especially when it comes to our cognitive systems. Going beyond the amplifier and speakers, complicating things even more, is how our ears and brain are tuned to pick up and interpret audio content. That content when done right is pleasing and makes you feel happy. Both tube and solid state can do this. Figuring out how to make solid state sound like what a tube does naturally is the hard part.
    Last edited: Sep 25, 2017
    Haroldo and JimmyM like this.
  8. brianrost

    brianrost Gold Supporting Member

    Apr 26, 2000
    Boston, Taxachusetts
    Of course not but people forget (or don't know) that bassists got by with low wattage amps for many years. The key is using efficient speaker cabs. Now that we have wattage up the wazoo some cabs trade off efficiency for tone. My BassMate had a 15" speaker, nowadays mfrs won't put a 15 in a combo that's less than 100 watts, in some cases 200 watts. 50 watt tube heads driving 2-15 cabs were the gigging standard for a very long time. People still gig Ampeg B-15s, only 30 watts and 1-15".
  9. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

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