leo0418 Posted July 11, 2009 Share Posted July 11, 2009 Hi guys, why is important that speakers must have low frequency response (deep to 35 hz) if all manufacturer receivers and a many people recommend crossover frequency in 60Hz. Thanks for your help. Quote Link to comment Share on other sites More sharing options...
willland Posted July 11, 2009 Share Posted July 11, 2009 Is it better for your main speakers to be full range? Yes. Is it necessary? No. Most a/v receivers amp section have to work harder when called on to reproduce low frequencies. When you add a subwoofer to the mix, the receiver sends a signal to the subs amp to reproduce those low, low frequencies therefore giving the avr a break so it can handle the rest of it's duties. Let the sub do what it is designed to do. Bill Quote Link to comment Share on other sites More sharing options...
russ69 Posted July 11, 2009 Share Posted July 11, 2009 The best speakers have the best low frequency response. Not as important today with subs being so common but I think my statement is still true. Getting the bottom end right is expensive and not easy to do. Thanx, Russ Quote Link to comment Share on other sites More sharing options...
tragusa3 Posted July 12, 2009 Share Posted July 12, 2009 The best speakers have the best low frequency response. Not as important today with subs being so common but I think my statement is still true. Getting the bottom end right is expensive and not easy to do. Thanx, Russ Yet is seems to be so affordable and easy in a subwoofer. Just reinforces the point that splitting up duties is easier on all the equipment. Quote Link to comment Share on other sites More sharing options...
russ69 Posted July 12, 2009 Share Posted July 12, 2009 tragusa, Subwoofer means "below the woofer", getting the 80 hz-30 hz range correct is a major accomplishment, only the best full range speaker systems get this right. The sub can fill in the rest but the better the speaker system the less NEED for a sub. I never drive so hard that I need to split my power, most of my listening is hovering around 1 watt average, if that. I don't have a newfangled reciever so my options are limited but I'd rather not use the woofer crossover and my best results have been running my mains full range. Thanx, Russ Quote Link to comment Share on other sites More sharing options...
tragusa3 Posted July 12, 2009 Share Posted July 12, 2009 I wouldn't argue the point the same way if I were a "2-channel" guy. I'm 100% multi channel theater, and my mains are not even designed as full range. I'm nowhere near knowlegable enough to have an opinion any deeper than what I hear is what I know. For my system I see the benifits of the subwoofer and the relief it puts on the rest of my equipment. I really should keep my nose out of the "techical" forum. [:^)] Quote Link to comment Share on other sites More sharing options...
seti Posted July 12, 2009 Share Posted July 12, 2009 The only problem with relying on subs for 2 channel music playback is finding subs which are musical. If you are using the La Scala, Belle, or khorns it is especially difficult becasue the subs are likely not going to be able to keep up. If you are doing ht you might as well buy speakers that maybe go down to 60hz and then get subs to go lower. I've heard 5 Heresy's and 2 subs. This was one of my favorite ht systems. It is best to experiment and listen for yourself. What seems right for me may not be for you. Quote Link to comment Share on other sites More sharing options...
russ69 Posted July 12, 2009 Share Posted July 12, 2009 tragusa, You have a valid point, half the guys do exactly what you do, it just isn't what I do. Keep posting, everyones input is wanted and needed. Thanx, Russ Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted July 12, 2009 Share Posted July 12, 2009 Also remember that a crossover is not a brick wall. If your crossover is 80 hz, there will still be information sent to the speaker below that frequency. I've heard a "rule of thumb" that you want your speakers to be able to go 1/2 to 1 octave below your crossover point. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted July 12, 2009 Share Posted July 12, 2009 I like having the crossover point as low as possible so that you get as much 'movement' in your HT action as possible. Look at it this way, as the crossover point rises and rises, the system becomes closer to MONO. If you have sufficient LF extension in ALL your speakers there would be need at all for subwoofage. Somewhere in between is the key. Personally, I have my LS and KLF-C7 in front set to SMALL at 80 Hz (LS because although they are loud as all get-out, they do drop off quite a bit below 70 Hz), but my Cornwalls behind me are set to LARGE. That way, if some big action takes place that whooshes front to rear, I get a bit of kick in the pants and hear the FULL RANGE of frequencies move about the room. Colter's rule of thumb is (if you get a single xover point in your receiver) to set your crossover point 10-20 Hz ABOVE the -3 db point of the least bass-capable speaker in your system. If your surrounds get down to 60 Hz at - 3 db, they're most likely pretty flat around 70-80 Hz. Quote Link to comment Share on other sites More sharing options...
leo0418 Posted July 13, 2009 Author Share Posted July 13, 2009 Hi everybody, many thanks for your inputs it was useful and I could see why is important. Quote Link to comment Share on other sites More sharing options...
Just_Strummin Posted July 14, 2009 Share Posted July 14, 2009 Your room will play as big if not bigger role in low frequencies. Make sure you have room treatments to optimize your lower frequencies. Quote Link to comment Share on other sites More sharing options...
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