Thanks for taking the time to look at my question. I recently bought a Ampeg SVT-3 pro which outputs 450W @4 ohms, 275 at 8 ohms. I also have a 2x10, 8 ohms, 200W handling cab. And last, I have a 15" combo amp. I'm pretty sure the speaker is an 8 ohm, probably 200W (will need to verify this)...