Some consoles were pretty good. Many were terrible!
But there are plenty of vintage amps that sound great on modern speakers:Harmon Kardon Citation 2, Dynaco St-70, Marantz model 8 and model 9, Fisher, HH Scott and so on. Any of them would need the power supplies rebuilt at the very least in order to be reliable.
Some console amps weren't too bad but they also would need to be rebuilt. Generally speaking the drivers in many consoles were not very wide bandwidth and didn't handle a lot of power.