" Connecting both channels together will almost certainly destroy your receiver."
Depending on some other factors but this is how our stereo amp work in fully balanced monoblock mod and no amplifiers were destroyed yet but I would not bet against human creativity - one day I surely will be surpised!
Most probably will be either near silence or actually somewhat distorted sound: the last depends on parts tolerance in both channels which is rather expensive or very, very expensive.
The best if OP will ask manufacturer in question directly - they have great name and surely will advise professionally
All The Best.
Simon
