In this review, we will be comparing Monitor XT10 and ProSub 800, two Powered Subwoofer speakers from Polk Audio and Definitive Technology. Being Powered subwoofers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them. Let's have a brief look at the main features of Polk Monitor XT10 and Definitive ProSub 800 first before getting into our more detailed comparison.
The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Both Polk Monitor XT10and Definitive ProSub 800 have a single woofer setup however the Polk Monitor XT10's woofer is 10-inch whereas the Definitive ProSub 800 features a 8-inch woofer.
Frequency Response
Monitor XT10 has a frequency range of 24-160 Hz whereas ProSub 800 has a frequency range of 20-150 Hz. With a minimum frequency of 20Hz, the ProSub 800 can go slightly deeper then the Monitor XT10's min frequency of 24Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Subwoofer class in our database.
Low Frequency
Subwoofer Speakers
High Frequency
Subwoofer Speakers
Cabinet Type
The Polk Monitor XT10 has a Bass Reflex type cabinet. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs. On the other hand the Definitive ProSub 800 have Passive Radiator type enclosure. Passive Radiator type subwoofers sports a non-powered cone that moves in response to the main woofer to move air out in order to generate stronger bass in a smaller body compared to ported or sealed designs.
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Polk Monitor XT10's and Definitive ProSub 800's external dimensions. Polk Monitor XT10 has external dimensions of 399.0 x 302.0 x 422.0mm (15-11/16 x 11-7/8 x 16-5/8inch) whereas Definitive ProSub 800 has external dimensions of 328.0 x 262.0 x 423.0mm (12-7/8 x 10-5/16 x 16-5/8inch).
Definitive ProSub 800 is 40mm narrower and 71mm shorter than Polk Monitor XT10 but it is also 1mm deeper.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Polk Monitor XT10 needs about 15% more floor or shelf area. Polk Monitor XT10 is 71mm taller.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Polk Monitor XT10 is approximately 1274.4cm2 / 197.5inch2 and base area of the Definitive ProSub 800 is approximately 1108.3cm2 / 171.8inch2. The Monitor XT10 requires 15% more surface area than the ProSub 800 which gives it a small disadvantage on placement in tight spaces.