Monoprice Auto-On Powered Subwoofer

Last updated: July 29, 2023

This versatile subwoofer has multiple input options. It can be used with any stereo or 5.1 or greater amp system. The subwoofer provides its own power.

We looked at the top Subwoofers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Subwoofer you should buy.

Product Details

Key Takeaway: This subwoofer has multiple input options.

In our analysis of 40 expert reviews, the Monoprice Auto-On Powered Subwoofer placed 6th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

This is an 8″ powered subwoofer capable of producing 60 watts (RMS) output. The subwoofer has a frequency response range of 50 to 250 Hz with a lowpass crossover filter, which can be adjusted from 50 to 150 Hz. Gain and frequency knobs on the control panel allow you to adjust the crossover filter and the power output for the optimum blend and balance of bass output with your stereo or surround speakers. The subwoofer has multiple input options, which allow it to be used with any existing stereo or 5.1 (or greater) amplifier system. For each input there is a corresponding output. High-level inputs accept a full-range signal from the amplifier’s stereo speaker outputs. When connecting the unit as part of a 5.1 system, these would be taken off the Front Left and Front Right outputs in parallel to the standard pair of front speakers. The subwoofer provides its own power and includes impedance matching circuitry, so this will not reduce the power output to the front speakers or affect the overall impedance load on the amplifier. Additionally, the subwoofer has a set of right/left Line Level inputs. If using a standard stereo system, without a special subwoofer output, you can connect these to the left and right line level outputs on the amp. The subwoofer will then combine the signals to process the mono bass signal it needs to drive the speaker. If you are using an amplifier with a single mono subwoofer line level output, simply use an RCA “Y” cable to split the output and send it to the two line level inputs on the subwoofer. The subwoofer is housed in an attractive black wood cabinet that measures 13.75″ x 11.75″ x 11.75″ (H x W x D). The driver and a 2 3/4″ sound port are located on the front, covered by a black cloth speaker grill.

Expert Reviews

What reviewers liked

For an enhanced low end at an attainable prince, try this compact 8-inch model.
I preferred the sound of the small sub/small speaker MonoPrice system, especially for music. It's a less ambitious combination, but sounds better balanced overall.
Multiple inputs make it easy to connect to anything. Smaller cabinet makes it easy to hide away. Black MDF cabinet looks good anywhere.

What reviewers didn't like

Frequency response is a little high for a subwoofer.
Relatively low wattage.
View our Subwoofer buying guide for in-depth advice and recommendations.

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