Mid speaker enclosure advice -Peerless
Hi, I recently purchased 2 Peerless 830946 6-1/2" mid-bass woofers. As the title says I am seeking advice on building a proper enclosure. -They are going into my work van and I was thinking about a custom mount behind my driver's seat (above my 10" JL sub)..separate them by about 20"..and run them in stereo
When I searched for other projects using these I found: Peerless SLS 6.5" (830946) project - diyAudio and Peerless SLS 6.5 (830946) box size BUT, I remember reading somewhere that mid-woofers should not have a rectangular box..and that for mid-woofers it was important to reduce standing waves as much as possible..and so an asymmetrical box or even rounded back was recommended. Could someone please confirm or deny whether I should be building some sort of strange-shaped enclosure for these?? -I would happily build whatever may sound the best! -I will even turn your advice into a DIY thread with some juicy pictures Also, it was mentioned that reducing the box volume increased the resonant frequency of the box?? The specs from Peerless call for just over 3 liters per woofer (sealed). Could someone explain what would be the sound difference or frequency response if I used 2.5 liters instead? In the second link a person said this speaker "fell apart" above 250hz. I had originally thought to run these active witha 12db @100hz (or a little higher) high pass and 24db slope at 450hz low pass. Any advice on that also? -If not I suppose I will just have to test that out when my enclosures are finished. Definitely would love some input! I have all of the tools/supplies to build any kind of custom enclosure for these..and want to get it done by the end of today! xD Last question: when mounting..should I aim these towards my ears..or reverse (like subwoofers)?? Answers, thoughts, suggestions, questions??? THANKS!! |
To wrap up this thread: I found information elsewhere that was quite important, "-The critical voice frequency is from 300Hz to 3KHz so keeping a crossover point out of that range is a good thing so.....
-how 'bout try letting those midbass drivers work where they are happiest, 80Hz to 250Hz. Keeping the path length differences as close as possible is a concern but I'd still try to get them more foreward. If you must keep them behind you and only 20" apart then low pass them around 250Hz" -I personally tested this and found I DID hear voice frequency stuff even at 300hz..and that it bothered the sound-staging..I currently am using these from 83hz to 200hz with 12 and 24db crossovers. |
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I should probably post pictures of my final product also huh? :D
https://www.caraudioforumz.com/attac...ine=1387587845 Distance from center to center is 23". https://www.caraudioforumz.com/attac...ine=1387587845 30 degree angle. https://www.caraudioforumz.com/attac...ine=1387587845 Unknown angle I literally guessed at. https://www.caraudioforumz.com/attac...ine=1387587845 A splash of color on the back for fun..haha I haven't finished figuring out exactly how I want to mount them in conjunction with my sub yet...but I know they will be sitting a little less than 2ft behind me..and elevated by about 1.5ft or so. Amazingly, I think I actually got the angles pretty close..for a proto-type at least..haha. |
Nice job. :thumbsup:
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Originally Posted by Dukk
(Post 674545)
Nice job. :thumbsup:
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