I know nothing about tubes first of all. I stummbled on these units & have not so much as plugged them in yet. The tube unit is Stereophonic STA-24 & the tuner is Lafayyette-225. I have both original manuals & both are in very good cosmetic condition. The manual states 30 wpc ? I have some reading to do later & looking for any feedback before i power it up. Also i paid 25.00 for both. So did i pay too much ?