Re: good amp with wattage attenuation
This is my take on the "wattage at home" thing.
In my experience, 1 watt is the MAX I can use at home and get passable tube amp tone. I have a Marshall DSL1, and with normal hard rock crunch, I can get the volume to about 9 o'clock before it starts getting too loud/potentially neighbor bothering. If I switch to the 0.1 watt setting, I can get the volume to about noon or maybe 1 o'clock tops.
I found 5 watts unusable at home. I had the Blackstar HT-5, very nice amp, but I could barely crack the volume past, say, 8 o'clock, so the amp was barely breathing = not getting full tone.
So if you want to get a big amp and have it switch down to a lower wattage, IMO it has to go all the way down to 1 watt.
Grabbing this from elsewhere on the Internet:
40 watts is 94% as loud as 50 watts.
30 watts is 86% as loud as 50 watts.
25 watts is 81% as loud as 50 watts.
22 watts is 78% as loud as 50 watts.
20 watts is 76% as loud as 50 watts.
18 watts is 74% as loud as 50 watts.
15 watts is 70% as loud as 50 watts.
12 watts is 65% as loud as 50 watts.
10 watts is 62% as loud as 50 watts.
9 watts is 60% as loud as 50 watts.
8 watts is 56% as loud as 50 watts.
7 watts is 55% as loud as 50 watts.
6 watts is 53% as loud as 50 watts.
5 watts is 50% as loud as 50 watts.
4 watts is 47% as loud as 50 watts.
3 watts is 43% as loud as 50 watts.
2 watts is 38% as loud as 50 watts.
1 watt is 31% as loud as 50 watts.
3/4 watt is 28% as loud as 50 watts.
1/2 watt is 25% as loud as 50 watts.
1/4 watt is 20% as loud as 50 watts.
1/10 watt is 15% as loud as 50 watts.
The same source says that 5 watts is like playing a trumpet:
http://www.amptone.com/g112.htm