On the Stereomour, the speaker level outputs when set at 8 ohms is about 5.3V with the black posts grounded. You could make a banana plug to RCA cable to use the speaker output as a line output, but you'll want to have the DC filament upgrade installed if you're going to do this. There are a reasonable number of headphones that could be driven from the Stereomour bindings posts as well with resistive pad installed in each channel.
