No, you have to use both channels of a stereo F5 amp to make one balanced amplifier channel.
For the left input channel, connect (+) to F5 channel A input, and (-) to F5 channel B input.
Then connect the speaker across the two red output terminals.
Do the same for the right input channel with a second stereo F5.
For the left input channel, connect (+) to F5 channel A input, and (-) to F5 channel B input.
Then connect the speaker across the two red output terminals.
Do the same for the right input channel with a second stereo F5.
I have used
https://www.jensen-transformers.com/product/pc-2xr/
for balanced out from my pre-amp to convert to shorter RCA interconnects to the amps (I have a long run from my Pre-Amp, and had hum with RCA interconnects)
https://www.jensen-transformers.com/product/pc-2xr/
for balanced out from my pre-amp to convert to shorter RCA interconnects to the amps (I have a long run from my Pre-Amp, and had hum with RCA interconnects)