Guru
Joined: 24/12/2017
Location: AustraliaPosts: 1619
| Posted: 04:23am 16 Mar 2023 |
Regarding the spare amplifier, I have no experience with digital amplifiers but I do seem to recall that some analogue amplifiers could be unstable if a load was not connected. Maybe connect a (say) 100 ohm resistor across the speaker terminals as a precaution. Wattage shouldn't matter.
Bill