Re: sony ss-u421av
After about 20 minutes of searching...I see at best;
Based on best guesses, the woofer seems to based on an older design. Most woofers, epecially sony based are not that design anymore. No ridges, or at least narrower now days.
3 way Speaker
Now these measurements are all best guesses based on a photo on Google
55-60hz-20khz is my best guess for the freq range.
For 25$ though they should work fine. better than either satellite speakers, or tv speakers...but I would take a listen to other speakers on similar material, movie, music etc...and in the future replace them with something you know more. but at the moment seem like a fine set of speakers.
1x Onkyo TX-SR876(Receiver)
1x Panasonic TH46PZ80U (TV)
1x Polk Audio CSi5 (Center Speaker)
2x Polk Audio RTi12 (Tower Speakers)
2x Polk Audio Rti6 (Surround Speakers)
1x KLH E-12DBN (Subwoofer)
Sony Playstation3 (Black Slim 250gb Edition)
Microsoft Xbox360 + HD-DVD player attachment + Kinect Camera
Sony Playstation2, Nintendo Gamecube, Super Nintendo Entertainment System, Nintendo N64, Sega Dreamcast.