The Sugden is about 20wpc, but a strong 20. They can struggle with a 4 ohm load and will not likely play very loud with the easiest of loads. Try the 16 ohm setting but don't expect to rock the place. The Sudgen was made quality, not quantity.
Is it hard on my amp to be driving 4 ohm speakers?
I'm a poor audiophile. My gear is very old. I have a Sugden A 28 amp and Epi M201 speakers. The speakers have a switch on the back that only gives you the choice between 4 and 16 ohms. The amp is class A, so it runs hot to begin with. The speakers don't seem to be very efficient, requiring lots of volume for best sound. I've searched for info on my amp with no luck. I'm guessing it's around 35 wpc into 8 ohms. AND I'm also assuming it would be a bad idea for the amp to set the speakers at 16 ohm. Am I right? Is my amp designed to handle driving 4 ohm speakers at high volume?