Review on Powerful Sound Upgrade: Dayton Audio RSS265HO-44 10" Reference HO DVC Subwoofer by Matt Kim

I used two of these in two separate passive DIY subwoofers. Connect each set of connectors (it's a dual voice coil speaker if you're wondering what DVC stands for) to a different (dedicated) amplifier channel, not the best solution but easy. Sounds normal to me, but I'm quite old and my hearing has deteriorated. These speakers are quite heavy and feel pretty solid. One was used to replace a fairly decent Klipsch subwoofer.