Yesterday, I played 6 - 9 on the river side deck at a restaurant/bar. The area seats maybe 75. The new owners only book solo acoustic acts and stipulate "Not Loud".
I used the S1 Pro on a short speaker stand with my Composite Acoustics Legacy in channel 2 and a Shure SM58 in channel 1 Tonematch set accordingly.
The gig went well, the owners liked me, crowd was decent but dropped off after 8. I had the volume at right where the owner wanted it, which IMO was a little too quiet but they write the check so that's where it stayed.
I ran the S1 on battery for the entire gig and it was fine. I was right next to an outlet just in case. The guitar had tons of volume set at 1200 but the SM 58 was barely adequate at 3:00. If fact, initially, I had the mic maxed and was concerned it wasn't enough.
Perhaps it's to reduce mic feedback but the gain in my mic seems to be very weak. I tried it on both channels and tried a different SM58, it was the same.
Whether guitar or mic channels 1 and 2 both don't really kick in until you get above 12:00. I read somewhere the reason behind this somewhere but can't find it now.
I'll try to get a power supply for my T1 and try running through that. It might make the Mic/guitar balance a little easier and increase the overall performance of the S1.
Bottom line, the S1 Pro did the job. My entire time from car to ready to play was 5 - 10 minutes, the owners were happy and I got paid.