The Polk PSW10 Powered Subwoofer is a modest subwoofer that is great for entry level systems and/or small rooms. This compact subwoofer delivers 50 Watts of continuous power, good clarity, tightness, and a lower bass response than you might find on more expensive subs. The PSW10 has a 10-inch woofer cone, a front mounted port to extend lower frequency response, a frequency response of 35 to 200Hz, and an 80Hz to 160Hz adjustabele crossover. Input connections include both Line Level and standard speaker connections. The PSW10 also features an Auto On/Off function for convenience. If you are looking for a compact subwoofer, check out the Polk Audio PSW10. Although its suggested price is $239, it can easily be found for $199 or Less.