I have owned both the Hydra 8, BPT 3.5 Sig, and the Equi=Tech 1.5Q over the years. My amps lost dynamics with the 1.5Q and sounded better going to the wall. The Hydra 8 did not have this problem, and sounded very good. The BPT 3.5 Sig. sounded even better than the Hydra 8, with improved dynamics, detail and 3-D soundstage.
You will find that the stock power cords for each will be a VERY limiting factor. Upgraded cords from these units to the wall make a big difference.
You will find that the stock power cords for each will be a VERY limiting factor. Upgraded cords from these units to the wall make a big difference.