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Exclusive Offer

The Polk Audio Cinema Subwoofer, an exclusive offer for OnTech customers, features a 7-inch driver and ported design with the ability to play down to 35 Hz. Its design provides a more powerful, room-filling bass while its slimmer profile allows for more placement options in the home. The subwoofer is also compatible exclusively with the Polk Audio Cinema Sound Bar and connects via our peer-to-peer wireless connection.

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Get free shipping on any product purchased. Add installation and our techs will personally deliver everything on the day of your appointment.
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OnTech Guarantee
We want you to love your experience. If for any reason you’re not 100% satisfied, we’ll work with you until we get it right.

Bring home the feeling of the big screen.

Using a wireless adapter, you can sync your sound bar and subwoofer to bring a full theater experience right to your living room.

Bring home the feeling Image
Stress-free Surround Sound Image

Stress-free surround sound.

When you book an expert installation from OnTech, you can start enjoying your new sound system as soon as tomorrow.

The Details

Product Features

Better Sound

The subwoofer provides more powerful, room-filling bass.

Better Pairing

The subwoofer is exclusively compatible with the Cinema sound bar.

Better Placement

The slim profile allows for various placement options in your home.

Product Specifications

Subwoofer Dimensions

7” driver and ported design

Wireless Protocol

5.8GHz wireless protocol for improved stability

Subwoofer Sound Direction

Down firing woofer

Subwoofer Frequency Response

35 Hz

Subwoofer System Power


Subwoofer RMS Power

50 W rms


1-year manufacturer warranty

What’s in the Box

Polk Audio Cinema Subwoofer
Wireless adapter
Power cable
User guide