So you’re looking to spend a lot less than $200 on a bottom end - which is fine considering what you have to drive them with. But I think you are going to be stuck with a ferrite motor.
GRS you say -hmmm.. And now they have their Delta Pro 15 clone now too (It’s called the Yamaha Club replacement, but that’s what it is). Which at $139 I’d consider for sure. They aren’t crazy heavy as 15’s go. Probably fine in a 50-60 Hz tuned TH, driven with only 200-300 watts. It will get as loud as your limited battery capacity will let things go without any strain. Hit the same thing with an RMX2450 and it might bottom the coil and rip the cone to shreds.
GRS you say -hmmm.. And now they have their Delta Pro 15 clone now too (It’s called the Yamaha Club replacement, but that’s what it is). Which at $139 I’d consider for sure. They aren’t crazy heavy as 15’s go. Probably fine in a 50-60 Hz tuned TH, driven with only 200-300 watts. It will get as loud as your limited battery capacity will let things go without any strain. Hit the same thing with an RMX2450 and it might bottom the coil and rip the cone to shreds.