Do yourself a favor. Don’t assume latest tech will always sound the best. If you get yourself a Powerbrake and play it a couple weeks, then try a hot plate or unleash or any resistive attenuator you will know latest is not always better. Luckily Powerbrakes can be had for 200-250. Unleashes are double that and sound half as good. But if you like dark tones, you may not like the Powerbrake as it’s one of the few attenuators that actually retain the original highs. Some, like the hot plate, add back some select highs but only because it killed them in the first place. If it has a way to add highs, then someone else is deciding which highs to add and it’s not the original EQ of the amp. After spending thousands on attenuators, I have yet to find a more transparent one than a Marshall Powerbrake. And it was designed to be the safest one for use with a Marshall.