What the Dayton Audio UMII10-22 is
This is a powered subwoofer with a 10-inch woofer, built to add bass to a stereo or home audio system.
Powered means it has its own amplifier inside, so you don’t need a separate amp just for the sub.
That doesn’t mean it connects directly to anything with sound. A lot of beginners see “powered” and assume it can plug straight into any turntable setup. That’s where the confusion starts.
| Spec |
What it means |
| Driver size |
10-inch woofer |
| Type |
Powered subwoofer |
| Inputs |
RCA line input |
| Controls |
Crossover control, phase control, gain |
| Best room size |
Small to medium rooms |
| Best use case |
Music-first stereo systems with bookshelf speakers |
Compared with relying only on bookshelf speaker bass extension, a sub like this takes pressure off the mains and fills in the bottom octave more convincingly.
If you’re still building your system, our turntables and best turntable speakers pages can help with the rest of the chain.
How it connects to a turntable setup
The cleanest path looks like this: turntable → phono preamp → stereo receiver → subwoofer.
If your turntable has a built-in phono preamp, that handles the first conversion stage. If your receiver has a phono input, the preamp may be built into the receiver instead.
Either way, the sub usually wants a proper downstream signal, not a direct turntable feed.
Here’s a common beginner mistake. You buy an Audio-Technica deck with a built-in phono stage and think that means any add-on speaker or sub will connect easily.
It helps, but you still need the receiver or another compatible output stage to send signal to the sub’s RCA line input.
Receiver-based systems are usually easy. Turntable into powered speakers only is where things get messy, because many powered speaker sets don’t offer a sub out or flexible line-level routing.
If you’re unsure, start with our turntable setup guide, what is a phono preamp explainer, and how to choose a turntable. A little homework here saves a very annoying return later.
