Guest David H Posted October 13, 2012 Share Posted October 13, 2012 I decided to build a new horn to use with the Dayton 8" Full Range driver from Parts Express. This is a 23 inch 200Hz Fc circular cross section Tractrix flair. This is just a prototype, and a work in progress. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 13, 2012 Share Posted October 13, 2012 Here is a preliminary response plot, no crossover. The green line is the dayton no crossover in the horn, the Yellow is the same driver in a ported enclosure with a contour network. The graphs here an not overly accurate, just a quick measurement. Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 14, 2012 Share Posted October 14, 2012 What is the efficiency? If high enough this is an option for the K Horn? Might be nice to cover 350 hz to 3500 hz with a K Horn bass bin. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 14, 2012 Share Posted October 14, 2012 What is the efficiency? If high enough this is an option for the K Horn? Might be nice to cover 350 hz to 3500 hz with a K Horn bass bin. These seem to do nicely from 300-7K+, then start to roll off. It would be close, looks like the horn picked up 6db, and the driver is 96db. I am very surprised the horn picked up that much spl. I dont have very accurate numbers yet, however I did compare this today to Johnny 5's Cornwalls, and these play a good bit louder than them. Dave Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 15, 2012 Share Posted October 15, 2012 Here are a few shots of the back chamber. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 15, 2012 Share Posted October 15, 2012 Side view. Because of the stepped build, it will be easy to incorporate this into a baffle. Dave Quote Link to comment Share on other sites More sharing options...
cfelliot Posted October 15, 2012 Share Posted October 15, 2012 Cool! Love watching the stuff you build Dave! Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted October 15, 2012 Share Posted October 15, 2012 Here are a few shots of the back chamber. O K I guess I need to understand Why there is the need for the back chamber ? I think I know the reason but can you explain Dave . Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 15, 2012 Share Posted October 15, 2012 Here are a few shots of the back chamber. Wow, going the extra mile. I would assuem the back chanmber would be a square box. Quote Link to comment Share on other sites More sharing options...
kwingylee Posted October 15, 2012 Share Posted October 15, 2012 Wow, you do great work! Looks fantastic can't wait for the end result. Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 16, 2012 Share Posted October 16, 2012 Thanks, I am anxious to see how these turn out as well. Dave Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 16, 2012 Share Posted October 16, 2012 Gotta love a shop packed with audio goodies. Quote Link to comment Share on other sites More sharing options...
Rudy81 Posted October 16, 2012 Share Posted October 16, 2012 Reminds me of the Oris horns. It might be worthwhile to find a driver that can go near 20kHz so you can go two way. Ever since I went with a two way system I have never thought of making any changes. Keep the test results coming. Very nice job on the horn! Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 16, 2012 Share Posted October 16, 2012 Reminds me of the Oris horns. It might be worthwhile to find a driver that can go near 20kHz so you can go two way. Ever since I went with a two way system I have never thought of making any changes. Keep the test results coming. Very nice job on the horn! Thanks Rudy.The Dayton FR280 driver actually goes to 20k strong. I need to take some accurate measurments. Dave Quote Link to comment Share on other sites More sharing options...
tigerwoodKhorns Posted October 18, 2012 Share Posted October 18, 2012 The Dayton FR280 driver actually goes to 20k strong. I need to take some accurate measurments. Dave Will they beam at high frequency? Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Will they beam at high frequency? Yes....Sucks....Dave Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Trying to figure out what bass drivers to run. Problem I am having is if I want lf response I get low spl, or a massive box. What I am contemplating is a compound Isobarik using 2 pairs of 10 inch woofers per box. I still have the issue of having a total efficiency of about 90db Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Rear Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Front Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 18, 2012 Share Posted October 18, 2012 Here is the Bass Box pro results for the proposed compound Isobarik. Quote Link to comment Share on other sites More sharing options...
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