tigerwoodKhorns Posted October 18, 2012 Share Posted October 18, 2012 Will they beam at high frequency? Yes....Sucks....Dave A three way is not the end of the world. Some "OK" sounding speakers out there are three ways[]. If you can get effieiency up and cross the K Horn at about 350 hz then go to a good tweeter at about 3500hz to 4000hz, this may be the next big thing. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 A three way is not the end of the world. Some "OK" sounding speakers out there are three ways. If you can get effieiency up and cross the K Horn at about 350 hz then go to a good tweeter at about 3500hz to 4000hz, this may be the next big thing. This is true, but for now I think I will build a Avantgaurd looking speaker. Might as well, I have all of the parts. Dave Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Might also make a nice Hornscala, or is it a Hornwall. LOL Dave Quote Link to comment Share on other sites More sharing options...
MechMan Posted October 19, 2012 Share Posted October 19, 2012 Dave, your killin me over here. LOL Keep up the great work...they look awesome. Quote Link to comment Share on other sites More sharing options...
moray james Posted October 19, 2012 Share Posted October 19, 2012 Hornwell would naturally have a much deeper soundstage. Lookin good. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
justinsweber Posted October 20, 2012 Share Posted October 20, 2012 The Cornscalawal :-). I saw the 23" horn its ginormious... Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 21, 2012 Share Posted October 21, 2012 As much as I like the idea of getting the bass response from the compound isobarik, the rest of this speakers drivers are nearing 100db sensitivity, therefore I decided to order the Dayton PA-255-8's. I have used these before on Johnny 5's quad bass Prophile 41's. These are great performers to around 40hz. This Dayton 10" has a sensitivity of 95db, therefore a pair of them wired in parallel will get me close enough that I dont have to attenuate the hf section too much. http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-030 The mid driver is a Dayton PS-220-8 http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-346 The tweeter I ordered to try with this project is also a Dayton driver, it is the new Dayton D250 1" polymide compression driver. I intend to couple this to my ContracT lens. http://www.parts-express.com/pe/showdetl.cfm?partnumber=270-402 To couple this all together I will see if I can get some assistance from ALK engineering for the crossover design. From the looks of things, I could probably get away with using ALK's Universal crossover. Dave Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 21, 2012 Share Posted October 21, 2012 I saw the 23" horn its ginormious... Yeah its a big one. Hopefully I will get a chance to take some more accurate measurements this weekend. Dave Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 21, 2012 Share Posted October 21, 2012 As much as I like the idea of getting the bass response from the compound isobarik, the rest of this speakers drivers are nearing 100db sensitivity, therefore I decided to order the Dayton PA-255-8's. I have used these before on Johnny 5's quad bass Prophile 41's. These are great performers to around 40hz. This Dayton 10" has a sensitivity of 95db, therefore a pair of them wired in parallel will get me close enough that I dont have to attenuate the hf section too much. http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-030 The mid driver is a Dayton PS-220-8 http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-346 The tweeter I ordered to try with this project is also a Dayton driver, it is the new Dayton D250 1" polymide compression driver. I intend to couple this to my ContracT lens. http://www.parts-express.com/pe/showdetl.cfm?partnumber=270-402 To couple this all together I will see if I can get some assistance from ALK engineering for the crossover design. From the looks of things, I could probably get away with using ALK's Universal crossover. Dave Do you have more info on the tweeter? I have been looking for something to replace a pair of blown K77's. If the midrange is about 100 to 102 db that may work with a K Horn bass bin. I found that I had to cut the tweeter and midrange to get the K Horn to sound balanced, at least in my room. Keep us posted. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 Do you have more info on the tweeter? I have been looking for something to replace a pair of blown K77's.I will have some info when they arrive next week.Keep us posted. Will do. I took some measurements with True RTA this morning. Octave smoothing. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 3rd Octave smoothing. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 I did some basic off axis measurements as well, that look better than I expected, - Not posted Not sure which of these dips are environment related, however I tried to take measurements between the howling winds gusts. All measurements shown so far are on axis at 1 meter to minimise interaction. Dave Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 I took a backup measurement with my IPAD because the results differed signifigantly from my initial measurements. Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 22, 2012 Share Posted October 22, 2012 The graphs look good, how do they sound? Quote Link to comment Share on other sites More sharing options...
Rudy81 Posted October 22, 2012 Share Posted October 22, 2012 I'm surprised that setup can do so well near 20kHz. My Jabo horn does well in the HF, but does not go nearly as low as your test setup. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 The graphs look good, how do they sound? Thats a tough question, because I am listening to the horn by itself. I would say overall sounds quite good.I spent a good portion of my day testing once again. I used True RTA and REW for measurements. I tried to take some sensitivity measurements, however I really dont have the tools to make this measurement accurately. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 Spectrogram Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 Decay Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 22, 2012 Share Posted October 22, 2012 Waterfall Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 23, 2012 Share Posted October 23, 2012 I'm surprised that setup can do so well near 20kHz. My Jabo horn does well in the HF, but does not go nearly as low as your test setup. Hi Rudy. I have been looking at this combo for days, and I still dont know why it is doing what it is doing. I suspect this may be due to not using driver compression. Here is this drivers graph without the horn lens. Quote Link to comment Share on other sites More sharing options...
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