It will change. I am not sure, but if I remember correctly either the slew rate or the damping factor changes by a factor of 2. If you run a search you will probably find the answer.
4 responses Add your response
Amps can apparently be bridged in parallel or series.
This will make a difference in results......but not the fact that generally things go.....downhill.
Some, my old Rotel RB-1070, for example didn't even spec 4ohm stereo power and only listed 8 ohm bridged....apparently no 4ohm loads allowed in bridged mode.
Of course, a speaker with 8ohm 'nominal' can have some severe dips, so you really must be careful.
In bridge mode output voltage is doubled and the power is quadrupled - therefore each of the amps delivers twice more power. Power supplies are not likely to be designed for 200%. Damping factor will drop by a factor of 2. Slew rate should be 2x but output has to deliver twice current and might get slower. I would guess it will stay the same.