Great advice, Corpse.
A lot of my students want to get a "Half Stack", when they get into a band. Then, they are depressed that it doesn't sound like they've always thought it would. It's because they try to run the amp with the volume at 2 or 3 (On a 1 to 10 scale).
A tube amp won't usually start growling until the volume is at 5. It won't start crunching and singing until about 7. With a tube amp, 5 watts can be too loud for a living room. I play an 18 watter at small clubs, and a 30 watter at medium sized clubs. Because I like to have the amp's volume at least at 5, to put some hair on the notes.
So, make sure you're honest with yourself about what type of setting you're going to be playing in most of the time.
You can buy an attenuator, which will let you crank the amp and lower the overall volume. But, it still doesn't sound exactly right.
You can get an amp between 15 and 30 watts in a head version, if you want. Then, you can set it on a 112, 110, 121, 210, or 412 cab. It will still be a half stack. Just not insanely loud.
If you're playing really big clubs, then yeah, a 50 watt Marshall is an option. A 100 watter would really be a LOT of amp, if you want to crank it up! WHEW! I mean, how often do you crank your Twin past 7? It's the same type of deal, with any tube amp. A "Master Volume" only helps a little. Too much, and your tone disappears.
Be careful, buddy! I heard that Jeff Beck was going to tour with Guns And Roses, and got tinnitus from Slash's amps. And this was at the practices. So, the tour got called off.
Seriously though, an 18 watt Twinmaster is more than most people would think. I've played side by side with players who were using 50 watt Marshalls. They could get louder. But, not too much louder than me. Their amps threw the sound farther into the crowd. That was the main difference. Oh, and the soundman would always tell them to "turn down some" (neutering their amps' tone). So, they would "try" to get the tones with pedals. Besides, I can carry my combo with 1 hand, and the El-84 tubes are plentiful, and cheap to replace. Also, I carry a Shure Beta 57, and a quality Mic cable. If I need more volume, I run a mic to the P.A.
I hope this post is not too long-winded. Good luck on your "Tone Quest". It's going to be a fun time!
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