I have not owed the 120 but, my PA 150 was great with music and movies. I can't imagine and smaller sub not being as quick and detailed. The Premiere Acoustic PA 150 is still one of the best subs I have ever owned and I have owned subs from 8 in to 18 in.
Klipsch RF 7 based HT 7.4, Pioneer SC 35, Acurus 200 Five, Dayton 18 Ultimxa Dual Sub Cab(2), Dayton 18 Ultimax Large Vented Sub Cab (2), on Berhinger I Nuke DPS amps, Samsung BDP F 7500, Asus/My Book Live HPC 4 TB
Yaquin VK 2100 amp, McIntosh XR 5 speakers, Samsung BDP F 7500