i am picking these older bass shakers up from craigslist Aura Bass Shakers AST-1B-4, they say they are rated for
· Frequency Range: 20-100 Hz
· Effective Impedance: 4 Ohms
· Resonance Frequency (fo): 42 Hz
· Continuous Rated Power: Nominal 25 W RMS
· Max power: 50W RMS
So my question is, i will have 2, so i understand to wire in series to produce 8 ohms. But what can i use to power them? I had the idea of using my old RCA htib receiver, but it doesn't work. I'm located in canada and looking for the cheapest way to power these. I assume i should be looking at a 50W supply?