The FM3 has no amp, you would need the Fender combo amp to hear anything. Any of the outputs into the combo amp FX return would work. If you dont have an FX loop, just use the Fm3 for drives\FX going into the front of the combo amp.Is it possible to use the FM3 straight into, for example, the speaker of a Fender combo or a 2x12 cab for very low level apartment practice? Would the headphone jack, FX send, or output 1 offer the most volume? If this is possible, what kind of cable should I run? Thanks!
Yes, you can do that. But the volume will be very low, perhaps to the point of unusable.Is it possible to use the FM3 straight into, for example, the speaker of a Fender combo or a 2x12 cab for very low level apartment practice? Would the headphone jack, FX send, or output 1 offer the most volume? If this is possible, what kind of cable should I run? Thanks!
You probably want to match the (output) levels of all your presets. If you want to do this by ear, don't do it at low volume level and don't use headphones. The reason: you may think that your high-gain preset needs to be turned down compared to your clean preset. But when playing live, that high-gain preset is compressed (has no peaks) while the clean is tone is very dynamic. Really, the only proved way to match levels by ear is to do this at gig level, and preferable with the band playing or using a backing track.