AnalogSteph
Major Contributor
Maximum output unbalanced is +9.5 dBu (~2.3 Vrms), most ordinary integrated amps should handle that fine. I might back off the output volume to 80-90% just in case.
You can generate a 0 dBFS (~0.999 amplitude) sine e.g. in Audacity and play that to verify you're outside of clipping.
You could also run the amplifier at a fixed volume (high enough to provide as much output as you'll ever want) and control output entirely via the Scarlett instead, its volume control is analog and the output stage has a decent amount of dynamic range. This is how the Scarlett would commonly be used in a home studio - most active monitors will have an input gain trim but it'll be hidden at the back, intended for use during setup only.
You can generate a 0 dBFS (~0.999 amplitude) sine e.g. in Audacity and play that to verify you're outside of clipping.
You could also run the amplifier at a fixed volume (high enough to provide as much output as you'll ever want) and control output entirely via the Scarlett instead, its volume control is analog and the output stage has a decent amount of dynamic range. This is how the Scarlett would commonly be used in a home studio - most active monitors will have an input gain trim but it'll be hidden at the back, intended for use during setup only.