New flat pack horn kit for FE206E from Madisound - Page 2 - diyAudio
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Old 2nd November 2007, 11:45 PM   #11
freddi is offline freddi  United States
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RCA-Fan's horn (plans over at Audio Asylum's high efficiency speaker forum gallery) appears better for 206 than Fostex 208 cabinet.

my BK20 kit's bottom didn't fit flush but its a sturdy kit and optimized pretty well for small (~4.2 cubic foot bulk)

here's my very close couch position (laying down) of Bk20 with a $12.60 Sammi and ST324 tweeter w. 1.1uF vs a Klipsch Heresy which is elevated about 16 inches off the floor.

BK20 indoors vs Heresy - equal drive - nice to have floor coupling :^)
http://img216.imageshack.us/img216/5...resyir1it3.gif

BK20 outdoors just Sammi - mouth open vs a pillow jammed into mouth
http://img229.imageshack.us/img229/3...amongp1ry8.gif

RCA-Fan blh - just 5 internal pieces and no wasted volume (no reflectors)
Click the image to open in full size.

RCA-Fan blh vs Fostex 208 horn - K-slot blh might have more "hit" and definition on cello than Fostex
http://gallery.audioasylum.com/cgi/g...f=RCAFANVS.jpg
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Old 2nd November 2007, 11:56 PM   #12
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Quote:
Originally posted by mp9
what do you guys think about putting a pair of 166es-r's in these bk20's?
Like putting a V8 in a Mini. The driver deserves better, i.e. something designed for them.
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Old 3rd November 2007, 03:11 AM   #13
mp9 is offline mp9  United States
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yeah i know only the rec. blh will be to heavy for me to manage. been looking into alternatives, the austin-a166mk2 is top of my list. i haven't long term feedback from anyone who did this combo and would hate to find out the hard way that that the fostex rec. blh would've been better. ron has pointed out a flaw in the fostex rec. blh an gave me the impression that he thinks his austin's would sound better in my application. i looked at the spawn iris and chili chang option which would be versatile due to not needing corner placement however they'll prob. end up weighting as much as the fos. rec. blh. the other issue here is a small listening room which brings me back to the austin's. anyway i can't make up my mind which to build.
a lot of people report 45's sounding good with their cain & cain abby's which has me wanting to use 45's with the 166es-r's in my small room, just need to determine which of the available cab. options will be best. more so now that the weather is right for speaker building. any further thoughts and ideas are appreciated.
thanks again.
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Old 3rd November 2007, 07:31 AM   #14
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I have plain-jane 166s. Have had them in both BK-16s and Austins.

The Austins are far superior. Much better tonal balance, real bass, higher mounting + corner-loading=much larger, wider soundstage

Sean
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Old 3rd November 2007, 11:24 AM   #15
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If you want a piece of advice, stop worrying and build the Austins. They are probably the most advanced BLH in the world today and the ESRs will be much happier than in the BK box.
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Old 3rd November 2007, 11:37 PM   #16
mp9 is offline mp9  United States
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thanks you prob. right about the austins.
i hope i don't screw up the dimensions resizing the compression chamber to 2.74L. i'm not sure if i'm supposed to correct that volume accounting for the internal space taken up by the driver? ron c. crunched the numbers for austin/es-r c.c. volume when using a 12.7"x12.7" supra baffle (which i would do), only i neglected to ask about the driver. prob. should have made a request for resized plans so i wouldn't have to be concerned about messing them up, but i thought that would be asking for to much.
i think i'll begin to build them as soon as i get some nice exotic veneer (been watching ebay). i plan on veneering both the outside and inside surface of the b.b. ply (for = pressure to resist warping), so i'll need to apply it (at least the inside surface), prior to assembly.
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Old 4th November 2007, 12:27 AM   #17
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If you're going to go that far in the detailing (good man), might I suggest that rather than the angled strike-plates around the bends, you get hold of some thin modelling ply & make curves, then fill the voids with whatever your favourite mass is (I gather kittle litter is one of the most effective materials).
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Old 4th November 2007, 01:27 AM   #18
mp9 is offline mp9  United States
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thats something to think about. i could steam bend the thin hobby ply (i think it's basswood), laminate them up to 18mm and router out the side panels to hold them in place. could also tongue and grove curved sections to the linear ones. seems like a lot if work, if i do that i hope it's worth it.
hum... o.k. now i'm really going off..., can't help but wonder what area shops would charge to cnc my b.b. to do a layertone version, it'll prob. be ridiculous.
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