An amp's ability to deliver current, especially into 4 ohms and lower, is a better indicator of its performance with different speakers than its voltage rating!
Agree. I have always enjoyed using amps with big power supplies that can deal with very low impedance speakers (one of my favourites puts out only 40 watts into 8 ohms, but when bridged will put out 500 W into 1 ohm).
As it happens, I still own one of Belles rather rare amps, the 'Belles A' - I believe that he made less than 200 of them. 70 W output, but when asked about how low impedance it would drive into, supposedly commented along the lines that t would drive a clip wire (between the output terminals). What I do know is that the turn on pulse welded a couple of switches together so I just used a commercial power bar to turn it on (and replaced the bar when it eventually failed).
Tube amps can't do that - but when they do clip, they do it more gracefully.