djn Posted October 31, 2005 Share Posted October 31, 2005 Hi All, I have been away from this forum for some time now. Good to be back. I have two empty khorn bottoms (DIY) and am thinking about using them as subwoofers. Do they make good sub? and is there a better driver than the K33 for sub duty? Thanks much in advance. Cheers. Quote Link to comment Share on other sites More sharing options...
DrWho Posted October 31, 2005 Share Posted October 31, 2005 well you'll only get response down to 30Hz... for their size you could do a lot better with a more standard approach (and get similar sensitivity too), but there's nothing wrong with trying them out to see if they fit the bill. Quote Link to comment Share on other sites More sharing options...
michael hurd Posted October 31, 2005 Share Posted October 31, 2005 Depends, as it was mentioned, you could try them out and see if they fit the bill. The K-33 is the best driver fitment for the cabinet, and the lower limit is set by the cutoff of the horn. Some of us lunatics on board require multiple high gain subwoofers, some own commercial products, and some people have large infinte baffle subwoofers. Regardless, do you have a specific goal in mind as to how low you would like to reproduce, how loud and a budget? Quote Link to comment Share on other sites More sharing options...
djn Posted October 31, 2005 Author Share Posted October 31, 2005 Hi Michael, I am building up a DIY Edgarhorn system. I have the Fane tweets, Edgar 350hz salad bowl with Altec 288C drivers, the Edgar straight 80hz midbass horn with Altec 515B woofers. So am looking to use the khorn bottoms for 100hz down to 30hz or as low as it will go. I watch some movies through my system but mainly it is music so I don't need anything below 30hz. I can get the cabs for nearly nothing and I see the K33 going for about $150.00 a peice so I am thinking that $300.00 for two subs is not bad. I have a Crown D-150 IIA for power. I am driving the rest of the system with a 300B amp. Cheers. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted October 31, 2005 Share Posted October 31, 2005 Hi Michael, I am building up a DIY Edgarhorn system. I have the Fane tweets, Edgar 350hz salad bowl with Altec 288C drivers, the Edgar straight 80hz midbass horn with Altec 515B woofers. So am looking to use the khorn bottoms for 100hz down to 30hz or as low as it will go. I watch some movies through my system but mainly it is music so I don't need anything below 30hz. I can get the cabs for nearly nothing and I see the K33 going for about $150.00 a peice so I am thinking that $300.00 for two subs is not bad. I have a Crown D-150 IIA for power. I am driving the rest of the system with a 300B amp. Cheers. Where can you get the cabs for nearly nothing? I'd say do it. Especially if you're not relying on the bass bins for anything above 100 Hz or below 30Hz. I prefer the clean slam of Klipsch bass bins within their limits to the lower bass produced by DRs. I'd like to see and hear what you're doing. I've entertained similar notions, but running a business and Seaholm's football concession stand prevents me from having the time. Quote Link to comment Share on other sites More sharing options...
michael hurd Posted October 31, 2005 Share Posted October 31, 2005 Sounds like they might fit the bill for you then, they are allready down by several db at 30 hz, but do have output down there. An active crossover will ensure that the k-horn bottom is not reproducing high frequencies and also you can set the crossover point at gain. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted October 31, 2005 Share Posted October 31, 2005 You've probably seen this http://www.volvotreter.de/ He uses one "Klipschorn" bass bin as a sub. Quote Link to comment Share on other sites More sharing options...
djn Posted October 31, 2005 Author Share Posted October 31, 2005 Hi Diz, I am sure I saw you at the games. My daughter Laura was a cheerleader for a while. I don't know if you remember, but there was four RCA multicell horns hanging from the gym ceiling that had the wires cut to them when they put in the new sound system (four years ago this was), well I talk Terry Piper into letting me have them. I used them for a surround for quite a while. Cheers. Quote Link to comment Share on other sites More sharing options...
D-MAN Posted October 31, 2005 Share Posted October 31, 2005 In a nutshell, the answer is NO. It won't matter how many you stack up, the Fc of the horn itself is fixed at 40Hz (or 38Hz depending on what you read). DM Quote Link to comment Share on other sites More sharing options...
michael hurd Posted October 31, 2005 Share Posted October 31, 2005 As I already mentioned cutoff is a function of the horn, and I did also post that the response was several db down at 30 hz. It will not do 16 or 20 hz, but that is not what his intentions are. ( in my speculation ) Maybe should be changed to "woofer" rather than subwoofer in the terminology. Quote Link to comment Share on other sites More sharing options...
djn Posted October 31, 2005 Author Share Posted October 31, 2005 Hi Guys, My Midbass horns go down to 80hz so I need something to go from 80hz down. As I understand it, the lowest note for a normal band is 42hz on a bass so 40hz would seem ok to me. But then again, I don't know much. Cheers. Quote Link to comment Share on other sites More sharing options...
Colin Posted October 31, 2005 Share Posted October 31, 2005 the first harmonic on the lowest note for a bass guitar is 42hz, but there are other instruements much lower: http://www.stereophile.com/reference/26/index2.html Quote Link to comment Share on other sites More sharing options...
michael hurd Posted October 31, 2005 Share Posted October 31, 2005 5 string bass guitar goes much lower, I forget the exact frequency, but somewhere around 34-35 hz. Organ music can go way down to 16 hz, and a lot of action at 32 hz. Depends on what you listen to, and how loud you listen, in the requirements for low-frequency reproduction. Quote Link to comment Share on other sites More sharing options...
formica Posted October 31, 2005 Share Posted October 31, 2005 Thanks Colin, an interesting side note in that link : Piccolo: Hardly a bass instrument, but ties with the piano at producing the highest fundamental tone of any instrument, at 4698.6Hz. A good soprano is struggling above 1kHz; violin fundamentals reach up to about 2.8kHz; some organ pipes go as high as 8kHz, but these are never used on their own, only as harmonic coloring. Funny how most people don't treat the lowest frequencies with the same respect as the upper ones. If we apply the same arguments at both ends, it can be said: 1) Those who only need 30Hz bass extension because most instruments (other than the organ) don't go lower... would imply a 5000Hz is also enough (other than the organ) 2) Those who only need 20Hz bass extension because most human hearing doesn't extend lower... would imply a 17000Hz is also enough (most humans older than a couple years old) Quote Link to comment Share on other sites More sharing options...
homemade Posted October 31, 2005 Share Posted October 31, 2005 I can tell you that a simple 12inch subwoofer in a proper ported enclosure will beat the pants off of a pair of khorns in the 20-35hz range. 40hz probably would be low enough for most music if it was flat to that frequency which a khorn isn't. At least mine needed a 12db boost at 32hz and cut of 4-6db at 125hz to smooth out the bass reasonably. Finally built the sub out of a cheap carsubwoofer of proper specs to balance things out nicely without the need of an eq. Quote Link to comment Share on other sites More sharing options...
greg928gts Posted November 5, 2005 Share Posted November 5, 2005 One thing you'll get with the Khorn bass bins subs is quickness. I have thought about doing this myself once or twice. They would match well with a horn system. I've had trouble integrating powered subs with my Khorns, not because they aren't loud or deep enough, but they just don't seem to blend well. Greg Quote Link to comment Share on other sites More sharing options...
JJkizak Posted November 5, 2005 Share Posted November 5, 2005 After looking at the construction of my RSW-12 with a 1500 watt amplifier for the narrow band of 19hz to 80 hz you would probably have to use about 20 K-horns to equal the one sub. Maybe more. You are trying to violate the physical laws and constants that exist in our Milky Way Galaxy. JJK Quote Link to comment Share on other sites More sharing options...
filmboydoug Posted November 6, 2005 Share Posted November 6, 2005 In any case grab the cabinets if they can be had for nearly nothing. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted November 6, 2005 Share Posted November 6, 2005 Dennis, I agree completely with flimboydoug. Any Khorn bass bins that can be obtained for nearly nothing should be obtained. If you don't want them, let me know where they are, I'll hold them in trust until some worthy Forum member is able to use them. If storage space is an issuse, you're free to use our warehouse. I just sent a '56 Khorn cabinet to Belgium, now there's space for more. I'll let you know when Seaholm's La Scalas are ready to be auditioned. Quote Link to comment Share on other sites More sharing options...
djn Posted November 6, 2005 Author Share Posted November 6, 2005 Hi Neil, actually, next to nothing means that I would do a custome paint job on a Harley Chopper in trade for the cabs. Let me know when you get the LaScalas. I've never heard them and would like to before they go to school. Do you have an amp for the school as well? I am going up to Burton Tuesday to listen to the VMPS New Larger Subwoofer. I have heard great things about it and the company. Cheers. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.