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Discussion in 'Amps and Cabs [BG]' started by Paulabass, Sep 23, 2017.
Don't get carried away, bro Not quite.
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.
For Sale - Jet City Amplification JCA5012C 50W 1x12 Tube Guitar Combo Amp - Mint - FSO
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.
Fair enough, just IME, tube watts most definitely seem to go further than SS watts.
And that's the way it ought to be
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.
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".
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