“Weeks” is the best estimate I have so far.
Just using the direct output (balanced) from the SP1000M, which is a tad more powerful than the regular SP1000, but less so than the AMP module (which I’ve not heard), I still have more than enough headroom there not to want to fiddle about with external amplifiers.
I heard the WA11 at CanJam @ RMAF 2018 (I’m not sure if it was final then) and it was an excellent sounding amplifier. But … I don’t care for the DAC in it, so it means going back to carrying a “stack” … and that just isn’t going to happen.
Besides, I’d just take the Cayin N8 along instead anyway (smaller, lighter, more than powerful enough, much better DAC, and the option for both solid-state and tube-drive).