I've tried a lot of options over the years. Modern attenuators and load boxes may be better but this is based on what I had at the time: Attenuator and 50W Marshall DSL50 into 2x12 cab. When you get at bedroom friendly attenuation levels like -16db I feel the sound gets worse and starts to lose definition, this was with the master volume around 5-6 which was the sweet spot for this amp. Attenuators to me work best at smaller attenuation levels which gets you the sweet spot at small gig volumes. Same setup but using the attenuator as a load box fed into a solid-state amp and the same cab. Better control over volume, I felt this was a bit better. Amp with London Power Power Scaling. This worked pretty great but is found in very few amps and is typically expensive. Still better at louder than bedroom volumes. Good master volume. I'm not sure of the implementations, these were found in a Diezel Einstein combo and an Egnater Tourmaster 100 head. Gradual, sounded pretty good at low volume but not as good as Power Scaling. Still doesn't have quite the smoothness you get from poweramp drive. Power reduction in the Egnater Tourmaster. It was switchable between 10/25/50/100W per channel and any of these settings didn't have much effect on volume but a noticeable effect in response and compression. Lower the wattage, the spongier the response and thus less suited for high gain sounds. I liked the lower gain settings for classic rock tones but preferred the high wattage for high gain and cleans. Which brings me to what I use now: Modelers. I sold my tube amps after getting the Axe-Fx Standard because I felt I was able to get just as good sounds and more out of it. I now have an Axe-Fx 2 and a Yamaha THR100HD, both of which offer fantastic tones at any volume. So to me a high end modeler is the way to go for low volume playing. I can understand that many haven't been satisfied with modelers in the past, neither was I but nowadays they are really very good.