I started out with the Bash PB12-NSD. I liked it but it wasn't quite enough for me. I also got it to make some strange noises when pushed really hard. I believe the newer Sledge models do have better control over the driver.
I did end up going with PB12-Plus. That was a nice upgrade.
LG OLED65E6 | Marantz AV8802A | Marantz MM8077 | Panasonic DMP-UB900 | PS Audio PerfectWave P3 | B&W CM9 | B&W CM5 | Dual JL Audio Fathom f112
Maingear Drift Z170 GTX 1080 HTPC | BDI Mirage 8227 | Logitech Harmony Elite | Synology DS916+ | TEAC UD-503 | Focal Solo6 Be | Vizio P50-C1