Originally Posted by yubjun
I'm seriously considering mounting my TV to the wall - this will free up space on the TV cabinet, for any of the Zvox's.
Based on your reviews, and also technical details, all the zvox speakers share the same technology in terms of phase cue, MDF built etc. ...
Of the 4, 325 looks to be the best bang for the buck. Only if we can increase the amp, it would be virtually the same as 415. Bron, I guess this is the reason you're trying to get a bigger power supply. I wonder why the rep would say, it would not make a difference though.
Excellent post, Yubjun!
One thing I would point out, the 415 uses a 4" sub with a passive radiator (at other end) and the 425 uses dual 4" subs - so it will have more powerful bass, I'm sure. The extra 3.25" drivers will help as well, as will the larger cabinet. And yes, with twice the power and the extra drivers, the 425 does indeed look like a big step up from the rest! I hope to do a summary and compare the units at some point, but you've certainly got us off to a good start!
By the way, I agree the 325 is the sweet spot in the line up and the best value over all - and its good design make it a winner. But the higher end models do have some nice features for those willing to pay the freight to get them. Not the least of which is having all of the controls on the remote (and thus capable of loading into your Harmony or other high-end remotes). This makes setup and use a bit more flexible. That said, many people will tweak the 325 and play with it and then finally just set it and forget it. So won't be a big deal to everyone.
I did feel that the 415 had a slightly improved soundstage (speakers are further apart) and a stronger sound - but I need to hear the 325 and 415 side by side to tell for sure. I have plans to do just such a comparison.
With respect to the power supply, I'm no engineer, but I think it may depend on the type of amp they are using and the 'curves' -- so SPL levels (volume) are probably not linear as power increases, so as you increase power it may be that overall volume does not increase that much *more* as the power increases. Also, the way the we perceive volume plays into it as well (any audio engineers reading this, jump in!), so more and more power required to achieve perceptible volume increases.
Anyway, I do have some power supplies all ready to go and I will do my best to do a meaningful test. I can't find my trusty SPL meter (have not used it in a long, long time), but I may spring for another one, or I may just do a subjective test. To some extent, I tend to trust that they wouldn't do this unless it did make sense, but curiosity alone makes one want to test things out, right?
Thanks again for the nice post!