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sanibuy
114
Oct 11, 2013
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This seems to be really good with full range speakers. If I get this, I also plan to build a set as an upgrade to my Audioengine A2. Here are my questions, hopefully someone knowledgeable can give me some answers. These questions are probably unrelated to the amp but one who get this will probably want to try full range speakers anyway. 1) How does these full range speaker do to pair with subwoofer? (Full range speakers being very efficient speakers and active subwoofer seems to be too slow?) 2) I have a pretty large room, around 15'x 22'x11', how do full range speakers do in large room? (most of my listening should be near field.) 3) How low can full range speakers really go with a good enclosure?
Oct 11, 2013
JDWarner
349
Oct 11, 2013
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sanibuyHey @sanibuy - I was poking around Bottlehead's site and came across this page, which describes how to simply and relatively inexpensively build a set of full-range speakers (moniters + subwoofers) which work great with the SET magic of the S.E.X.!
Bottlehead even calls them S.E.X.y speakers. Seriously, they are exactly what you are looking for. Check it out:
http://www.bottlehead.com/loosep/S.E.Xy%20speakers.html
Oct 11, 2013
Tristor
97
Oct 11, 2013
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sanibuyFor larger rooms, typically when building full range speakers you need to either do near-field listening with smaller monitors on stands or you need to build full-range floorstanding speakers (or buy them, I suppose). either way though, as JDWarner mentioned you can use a higher crossover frequency and small woofers in pairs to fill in the lower frequency range, or as an alternative you can run a crossover off the amp to split off the low frequency sounds and run a secondary amplifier (or a powered speaker) for a separate larger subwoofer (12-18") that is suitable to the size of your room.
The general rule with subwoofers is that the larger they are, the more accurate and impactful they will be at producing low-range signals, however the slower they will be. Smaller subwoofers will be faster, with tighter bass, but will lack in extension and impact. This is why in monitoring setups it's recommended to use smaller (8" or smaller) subwoofers in pairs for localization, while in a larger setup with full-range floorstanding speakers (which typically have small subs on the bottom) you should use a larger subwoofer for the lowest frequency sounds (12"+).
I'm a big fan of the Polk Monitor II-70 Floorstanding Speakers paired with the Polk PSW505 300W 12" powered sub. I have 4 floorstanding speakers and that sub in my listening room in a quadraphonic arrangement, and it works fantastically with incredibly detailed sound across the entire frequency range and plenty of oomph in the bass for dubstep and the like. For your room size, I might recommend a larger subwoofer. A friend has the Hsu VTF-15H 350W 15" powered subwoofer and it has incredibly tight bass considering it's size and has excellent extension.
Oct 11, 2013
sanibuy
114
Oct 11, 2013
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TristorThanks so much for all the useful info. Running 2 amps would very quickly burn my wallet. I'll stay with the cross over on the active sub. At this point I'm just trying to get a decent little setup one the side as an upgrade. (If I get the S.E.X.) The subwoofer I have now is NXG BAS-500 Its a 12' and pretty powerful but it seems to have a lower drop off point at around 60-80Hz on the measurement. Don't know if its fast enough or not. A range speaker setup seems to be about to touch down to around 75Hz.. so I might be fine with the subwoofer. Its a dilemma since I have a big room that requires big sub but the big sub are slow for the full range speakers. I wish I have the chance to listen to these full range speakers so I can make better decision.
Oct 11, 2013
Compassionator
207
Oct 12, 2013
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sanibuyThe S.E.X. is more of a headphone amp or line stage than a speaker amp. 2 watts is not enough to drive speakers in a big room adequately, unless you have Klipschorns or some other really efficient speaker. And even at that you would still need a sub or two to get deep bass.
Oct 12, 2013
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