Originally Posted by slcdawg
I am putting together a budget home theater for a 12x12 room in my basement. I was planning on purchasing a Polk Audio PSW108 sub, per Crutchfield's recommendation. However, I came across a Klipsch SW-450 sub for a similar price at Amazon. On paper they appear to be a lot more bang for your buck, but I gather it is an older model, so are cheaper. I tried to post a link showing a feature comparison, but don't have enough posts to link. Here is general comparison of features:
Low-Pass Crossover Freq: 80-160 Hz/ 40-150
Frequency Response 40-160 Hz/ 28-120 Hz
I will be using a Denon AVR-S510BT receiver and Polk TL150 satellite speakers. This will be 100% used for movies. I don't need wall shaking bass, but would like a decent home theater sound. Would the Sw-450 be overkill? Would the PSW108 pair better with the Polk Satellite speakers? Does it really matter? I appreciate any recommendations!
If the manufacturers specifications are accurate - which isn't a given - than the only choice between the Polk and Klipsch sub may very well be the Polk. That's due to the limitations of your speakers though, and not some inherent benefit to that particular subwoofer.
The TL150's speakers use what Polk optimistically calls a woofer, but at 2.5" it's barely a midrange really. If you keep the volume low, on a good day it might have acceptable output to 120Hz. That means your subwoofer will need to handle everything below that, a big ask for something in the budget category. The Klipsch is maxed out by 120Hz, so the lowest the speakers can go is the highest the subwoofer can. That's not a recipe for success.
The Polk PSW108 supposedly can reach 160Hz, but sadly can only manage an anemic 40Hz on the lower end. That leaves a lot to be desired if you only want to play music, but if HT is in your plans it's simply not acceptable. You might be better off considering something like the SVS SB12-NSD
. It can reach high enough to work with tiny speakers, yet play low enough to enjoy movies.