[codefox1]

Don't know exactly what you have, but the metal spiders of yore clamped down on a hole in the pole piece didn't help. Yet electromagnet speakers like the ones in Organs and high end sets can and do sound magnificent, and I have some. High end needs some help, if you can still hear it, but a waste of time for native standard AM reception nowadays which is pretty much (human) voice range compressed into commeercial noise.

If you're pumping better program content via local transmitter, sure you can do your best with alignment, output stage, speaker, and wow the old cabinets can really rock again. A really efficient speaker can get more out of a smaller amp. Look on web and compare. 150 watts into a public nuisnce car speaker may not be as good as 1 watt into a really nice old 8 inch full range speaker, but you decide.