I did wonder that myself at first but no. It’s a definite volume drop of at least 20%.

I’m going straight from the guitar to the pedal and then to the amp so no buffered or digital pedals in the line. Amp is an Epiphone BC30 with volume on channel 1 (clean channel) at 11 o’clock and channel 2 (overdrive channel) drive set at 2 o’clock, volume set at 11 o’clock.

Volume drop is significant on both channels.