Unless the stereo amp is configured internally for mono operation, you can NOT bridge it. Don't even try, flash...puff...smoke and maybe a tripped circuit breaker.
20 or 30 years ago, there was a company that made a little box that supposedly would bridge a stereo amp, but it didn't work very well.
If you do a search on here, this has been discussed several times before.
20 or 30 years ago, there was a company that made a little box that supposedly would bridge a stereo amp, but it didn't work very well.
If you do a search on here, this has been discussed several times before.