This went back up on ebay in the past week or so. Not mine, but I was stalking it before I got a Z-matcher. This guy is rated for 400W though. https://www.ebay.com/itm/296282571388
Thanks for the feedback. I've gone through most potential solutions and have come up bust. Everything was either not really viable or more of a pain that I want to deal with. So I've all but abandoned the idea of a Hartke 410. I'll wait until a pair of Hartke 8 ohm 210's come up at a reasonable price or look for something else with a sound I like that's different from what I already have. It's more expensive, but I've been looking more into Bergantino cabs.
by adding an appropriate resistor across the output jack or something along those lines?
I ask because I'm wanting a specific bass cab. It only comes in 8 ohms and I need 4 ohms. Replacing the speakers isn't an option and something like a Z-matcher isn't rated for the higher wattage.
There’s away to wire in a heavy duty AC rated toggle switch to switch cab impedance, don’t ask me how to do it though. Can only be done in cabs with multiple speakers.