Review on Earthquake Sound CP8 Subwoofer Laminate by Angela Johnson

The subwoofer arrived well packed and after unpacking everything was fine. I ran into a performance issue where I couldn't get enough volume to match the performance of my front speakers with 89dB sensitivity. According to the manual, I tried to connect two RCA inputs, but that's not enough. I hooked up another lower quality subwoofer with no problems. However, I also noticed that the gain varies greatly depending on the crossover setting of the subwoofer, but is still not sufficient. Revain did not offer returns. The manufacturer's support was unhelpful and asked why I'm trying to use two RCAs - IT'S IN THE MANUAL. After some discussion, the manufacturer wanted me to send him the subwoofer at his own expense? Not a positive experience at all.