You’re missing out!!! I put the MT15 in half power mode today, and it immediately hit me with the same impression I had the first time I used it - it’s like a “Marshall tone” switch! Leaner bass, and the mids popped more. As we all know, “half power” doesn’t equate to half volume, and that’s definitely the case on this amp. The 7.5 watt mode is a little quieter, but still packs plenty of volume. The bigger difference is the tone! I think I’ll be using the half power switch for classic rock tunes, as well as recording solo work. Try it cranked up a bit if you’ve not already!