Originally Posted by Redman77
I'm looking at either a pair of STSs as fronts (without a separate sub) or a pair of ones with a separate sub (Budget constraints are precluding me from going with STSs plus separate sub at this point, although I could potentially add the sub later). SVS subs seem to get good reviews so I contacted SVS and they recommended the PB12-NSD for my small home theater room(12x14ft). But that sucker is pretty big and I don't think it will fit at the front of the room. I do, however, have a lot of room at the back of the room (either in one of the corners or behind the couch). My concern is that I will be able to localize the sub in its position at the back of the room. I've tried to read up on this and the general consensus seems to be at crossovers 80hz or lower, its not possible to localize the sub although some people seem to say you still may be able to. So, my question is this. If I go with a pair of ones as fronts (which have a 60hz suggested crossover) plus an SVS sub at the back of the room, would it be better to add a mythos ten center (suggested 60hz crossover) vs definitives suggestion of the eight as center (suggested 80hz crossover). This way, all speakers at the front of the room would have a 60hz crossover. Or, would the ten be too overpowering with the ones as fronts?
Lots of people report good results with a sub in the back of their room. I've played around with listening to my PB12-NSD alone behind my listening position (I usually use it with a 16-46 PC-Plus up front), and, not unsurprisingly, did not find any localization. I always use a 80Hz crossover (THX choose it for a reason). The transients that give us aural clues to bass directionality tend to be above 100Hz even if the fundamental tone is much lower. Sometimes improper phase adjustment can create a directional effect, too, but the PB12-NSD lets you adjust phase.
Lower crossover points sound appealing to most of us, but they are not an unmixed blessing. One thing that is generally overlooked is that the way most AVR's work, choosing a lower crossover throws away that part of the LFE above the crossover. Technically, LFE goes up to 120 Hz, but in practice, it usually is limited to about 80Hz. Colin Miller and Brian Florian of "Secrets" published an interesting feature article
sometime ago that explores subwoofer crossover issues. I won't try to paraphrase it all here, but it's worth reading if you are making decisions based on conventional wisdom in these forums.
Like Axxis Audio John, I too would suggest the STS. You may very well find the bass all you need in your room, but if not, you could add a sub later. (BTW, while I think the PB12-NSD is an excellent sub and the unsung best buy in the SVS line, it might be physically overwhelming in your room. Try making a cardboard mock up of it and placing it in your room before ordering.)
I also agree with Axxis Audio John that the Ten would not be overpowering, but I think the Eight would work well with the Ones as they were designed together and have the same drivers. (I'd consider the new Nines with the STS). I am less concerned about the matching crossover recommendations than most people (I admit to being something of an iconoclast, though
). It isn't like the "missing" frequencies are gone, it's just that there might be a mild dip in response. That is not a good thing, but room interactions cause even bigger irregularities, so it's not something to obsess over. My Three is supposed to be crossed at 100Hz, but I use 80Hz. I can nether hear nor measure (and I've tried) any loss. Is it ideal? No. Is there aural degradation? No, again. But rooms vary, so, as usual, YMMV.