Dual sub-woofers??

[kexodusc]

I've got tons of headroom for dB's on the one sub, more power and volume is not needed or even really wanted.
If I can add some sort of soundstage or stereo imaging than this might be worth it.
I might get this anyway, test it out, and sell it on e-bay if I'm not impressed...

Any more comments? Keep'em coming!

[chimera128]

I have 3 subs in my speaker setup and 4 towers for my rears that produce 20hz or lower. Have you thought about trying out the new sub in the rear? If your rears don't produce ultra low frequencies you might want to wire them through the sub.

[kexodusc]

Chimera128: That's an interesting suggestion that I never though of before. My rear speakers produce bass, but only to 36 Hz I think. I've never been able to tell where the bass was being generated from really, if there were higher frequencies produced by the rears, it seemed as thought the sound came from behind.
I'm not sure as to the exact technical details, but it seems to me that any LFE signal below your set cutoff frequency, whether emitted from the front or rear speakers is channeled to the subwoofer. If bass waves are non-local by nature, what benefit is there to having a rear sub? Wouldn't my front sub still fire when bass signals run below the cutoff frequency?

For my purposes, I'm really more interested in music playback, both 2 channel stereo and 5.1 sources.
Piece-it pete suggested that the stereo soundstage and imaging can be improved by adding a second sub-woofer.
I've always been under the impression that bass signals emitted by a sub were non-directional, suggesting that stereo subs wouldn't add much benefit...am I way off?

[chimera128]

I was considering more in terms of multichannel music reproduction. All low frequency information is sent to the subs with movies. However, even though your speakers produce bass to 36hz, you would probably hear some difference with the sub in the back. I would try it in front and back and see which works best for you.

[This Guy]

Well with my young ears, I find bass signals at about 70 hz and higher are directional. This is a pain cause the crossover on my sub is fixed at 100 hz from my receiver so there's a lot of audible output all the way to a little past 120 hertz, and the only place to put my sub is behind me so I can localize some sounds from the sub when playing music. So If you have a relatively high crossover point, I can understand having stereo subs, but if you cross them over low, there's no need for another one, unless it needs more volume at the ultra low frequencies.

_joey

[htfan14]

Please let us know the results kex, I was interested in doing the same thing.

[joel2762]

but hey. It's another sub! why not eh! Get it (like you are) and fool around with it! If you're getting it for dirt cheap then what have you got to lose!? I have no problem with adding more subs, you might only get a 3dB increase but oh well! You have two subs!

[Sir Terrence the Terrible]

I've got tons of headroom for dB's on the one sub, more power and volume is not needed or even really wanted.
If I can add some sort of soundstage or stereo imaging than this might be worth it.
I might get this anyway, test it out, and sell it on e-bay if I'm not impressed...

Any more comments? Keep'em coming!

Stereo subs do not add stereo imaging or soundstaging. The cues to that are found in the mids and highs. According to the great Doc Greene you will not find much stereo bass in recordings as most bass is summed to a mono position. There is much bass found in the main channels of soundtracks, but unless your subs are connected to the main channels, and a crossover implemented you won't hear(or feel) any separation. The LFE channel bass is mono anyway, so connecting two of them to this channel is fruitless if you are looking for phase differences that equal to stereo.

[kexodusc]

Stereo subs do not add stereo imaging or soundstaging. The cues to that are found in the mids and highs. According to the great Doc Greene you will not find much stereo bass in recordings as most bass is summed to a mono position. There is much bass found in the main channels of soundtracks, but unless your subs are connected to the main channels, and a crossover implemented you won't hear(or feel) any separation. The LFE channel bass is mono anyway, so connecting two of them to this channel is fruitless if you are looking for phase differences that equal to stereo.

Thanks, Sir Terrence,
Once again you serve as the voice of reason.
Still, the deal is too good to pass up, I am going to buy this and maybe sell it on e-bay.
I think I'll play around with 2 subs in the meantime and report any perceived advantages/disadvantages in due time...
Thanks to all who posted.