Originally Posted by RobLee
Yes, the DSW is said to be a nice product and not to be confused with their cheaper subs. Those A9's are some BIG speakers!
Well, the Sub has a remote that allows for phase and sub location equalization which I have found to make a difference. I also have read articles where they bench tested response so I know exactly what response the settings can help achieve in my setup.
This is from one article about the Polk DSW 500.
The DSW Pro 500 subwoofer's bass limits were measured with the sub set to maximum bandwidth and placed in the optimal corner of a 7,500-cubic-foot room. In a smaller room, users can expect 2- to 3-Hz deeper extension and up to 3-dB higher sound-pressure level (SPL). Basic measurements were taken with the subwoofer in the Corner operating mode, but the EQ changes in the other modes are easily described in the text.
Measurements of the DSW Pro 500 subwoofer reveal a moderate dynamic capability. The Cabinet mode increases response below 60 Hz by 3 dB, while Mid-Wall increases output by roughly 1.6 dB over the same operating range. The Mid-Room mode raises output below 100 Hz by 1.5 dB, with a gradual increase to +7 dB by 25 Hz. The actual response of the sub's crossover runs from 60 to 105 Hz (the specifications state 60 to 120 Hz), and there is only a small volume/crossover interaction.
The DSW Pro 500 subwoofer proved very well matched to the rest of the system. Under direct comparison to my everyday single-12 (some four times its price), it did surprisingly well on familiar bass-off material, like the fire scene in chapter 6 of The Incredibles. The Pro 500's sound remained clean, deep, and boom-free to quite high levels - close, in fact, to reference level in my setup, which is several dB louder than my normal listening volume. In short, the Polk sub provided an ample bass foundation down to 30 Hz or so, with plenty of output for this comparatively modest layout. Yes, my bigger, far more expensive sub would play 6 dB louder before sending out audible distress calls, and it sounded more seismic and a touch tighter even at lower levels. But let's be reasonable: For just south of $600, the DSW Pro 500 rocked.
Polk Audio RTi A series Home Theater speaker system Test Report