rockhound Posted February 2, 2021 Share Posted February 2, 2021 With or without your gonna be surprised what that little box will do. I used a BASH 300 amp with mine. Good luck with your build. Quote Link to comment Share on other sites More sharing options...
MookieStl Posted February 2, 2021 Share Posted February 2, 2021 There is only one good time to put it in, and that is before you slam it shut. My concern is that if you look closely at the labyrinth pattern, each section taper out and gets larger and each turn is subsequently larger in volume. Thus the idea of folding a horn. If you add this foam, you reduce this expanding volume at each turn. May be an issue, maybe not. Just one man's opinion. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 2, 2021 Share Posted February 2, 2021 57 minutes ago, Lbk said: Charts from lil Mike but doesn't state with or without quiet liner. (Skimmed over thread, 50 some pages long) Have to assume test was with liner? Home depot has a similar cotton duct liner cheaper and in a smaller quantity. Can't hurt so I think I will try it, it's only about 13 bucks. Yes, the thread with pic lists quiet liner on building materials sheet. Lil Mike never used liners during measuring as I recall. People like to tweak designs and have probably added it. None of his flat packs ever came with liner. Certainly can't hurt though. Maybe that was something added after I researched and built mine. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 2, 2021 Share Posted February 2, 2021 41 minutes ago, MookieStl said: There is only one good time to put it in, and that is before you slam it shut. My concern is that if you look closely at the labyrinth pattern, each section taper out and gets larger and each turn is subsequently larger in volume. Thus the idea of folding a horn. If you add this foam, you reduce this expanding volume at each turn. May be an issue, maybe not. Just one man's opinion. I think its for higher frequencies like maybe 2nd or 3rd order harmonics. The low stuff should pass right through it. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 3, 2021 Author Share Posted February 3, 2021 Far from an expect but I think Carl is right, makes sense to me anyway. Can't get back to these till the weekend so I will do some more research before I make my final decision. If find anything significant I will post. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 3, 2021 Share Posted February 3, 2021 IIRC, Lil’Mike said liner made no difference, and recommended leaving it out. None of mine has liner. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 3, 2021 Author Share Posted February 3, 2021 3 hours ago, DizRotus said: IIRC, Lil’Mike said liner made no difference, and recommended leaving it out. None of mine has liner. Ok When I get back to it I will leave it out. Going to order subs tomorrow and finish boxes this weekend. Thanks for all the help! Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 3, 2021 Share Posted February 3, 2021 I understand the thinking that says, “what’s the harm, it might help, and now’s the time to do it.” One flaw in that theory is that once sealed in place, it cannot be easily removed. If the liner were to come loose, it could obstruct the path. The designer of the sub said it isn’t needed, which was good enough for me. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 3, 2021 Author Share Posted February 3, 2021 20 minutes ago, DizRotus said: I understand the thinking that says, “what’s the harm, it might help, and now’s the time to do it.” One flaw in that theory is that once sealed in place, it cannot be easily removed. If the liner were to come loose, it could obstruct the path. The designer of the sub said it isn’t needed, which was good enough for me. Good enough for me too, just wanted to get it right the first time. Just order 2 subs for the boxes, hopefully next weekend I will have them up and running. Quote Link to comment Share on other sites More sharing options...
rockhound Posted February 3, 2021 Share Posted February 3, 2021 What amp will you be driving these with? Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 3, 2021 Author Share Posted February 3, 2021 2 hours ago, rockhound said: What amp will you be driving these with? I have a 100 watt per kenwood with a 20hz filter. Bought it off craigslist for 20 bucks, if it doesn't work out I will buy something more appropriate. Quote Link to comment Share on other sites More sharing options...
MookieStl Posted February 3, 2021 Share Posted February 3, 2021 Did I miss this? What driver or you planning to use? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 3, 2021 Share Posted February 3, 2021 7 hours ago, Lbk said: I have a 100 watt per kenwood with a 20hz filter. Bought it off craigslist for 20 bucks, if it doesn't work out I will buy something more appropriate. As far as wattage goes, that's plenty. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 4, 2021 Author Share Posted February 4, 2021 1 hour ago, CECAA850 said: As far as wattage goes, that's plenty. Ok I was wrong, I do have a kenwood km 208 but it does not have the sub sonic filter. The one I was thinking of is a Yamaha ax592 integrated amp does a 100 watts per channel and has a 20hz sub sonic filter. Haven't use it in a while so I'll have to test it out this weekend. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 4, 2021 Author Share Posted February 4, 2021 14 hours ago, MookieStl said: Did I miss this? What driver or you planning to use? I order 2 from DIY audio, these where manufacturers by lik Mike with same specs as orginal. I am thinking about using double sided stick tape on inside piece's to help insure a good seal. Either full 1/2 stripe or 1/8 stripe on each end to form a channel for pl premium. ( may push out tape? ) Thoughts, thanks! Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 4, 2021 Share Posted February 4, 2021 1 hour ago, Lbk said: I order 2 from DIY audio, these where manufacturers by lik Mike with same specs as orginal. I am thinking about using double sided stick tape on inside piece's to help insure a good seal. Either full 1/2 stripe or 1/8 stripe on each end to form a channel for pl premium. ( may push out tape? ) Thoughts, thanks! Definitely do not use tape between panels that are meant to be permanently attached to each other. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 4, 2021 Share Posted February 4, 2021 58 minutes ago, CECAA850 said: Definitely do not use tape between panels that are meant to be permanently attached to each other. Agree. Quote Link to comment Share on other sites More sharing options...
Lbk Posted February 4, 2021 Author Share Posted February 4, 2021 1 hour ago, DizRotus said: Agree. Ok so just pl premium? Worried about a leak I can't get at, how did you guys secure final panel? Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 4, 2021 Share Posted February 4, 2021 15 minutes ago, Lbk said: Ok so just pl premium? Worried about a leak I can't get at, how did you guys secure final panel? Loctite and screws. Quote Link to comment Share on other sites More sharing options...
rockhound Posted February 4, 2021 Share Posted February 4, 2021 I drew the panel out (interior pieces) then like diz said put a thick layer of PL on and then screwed it to those inside panels. Having a drawing of where those pieces are made it easy. Once it dries unscrew, fill the holes, sand and apply duratex. See attached pic for reference this would be your top panel facing you so you know exactly where to put the screws. Quote Link to comment Share on other sites More sharing options...
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