Try A Rogue 120 Mono pair, (tubed)
Has the Balls to control that woofer and drive it well then you will also enjoy the transparency of tubes, then you can roll in some input drivers to custom tailor the sound. I am very Familiar with Jbl and Have had their Big stuff when it was available new.
Dont let that 120 watts Rating fool you.https://www.stereophile.com/tubepoweramps/735/index.html