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View Full Version : JBL GTi1800 18" 6 Cubes - 8 Inch Aero - Recone and Box build



amartin_72
12-03-2009, 10:06 AM
It sounds OK but I have not given it more than 200 watts yet. I am going to try lower tuning and put my vfl200.1 on it @ 4 ohms

http://i37.photobucket.com/albums/e76/amartin_72/JBL%20gti%201800/Picture190.jpg

http://i37.photobucket.com/albums/e76/amartin_72/JBL%20gti%201800/Picture191.jpg

4" Coil a real flatwind-edge wound coil.


http://i37.photobucket.com/albums/e76/amartin_72/JBL%20gti%201800/Picture187.jpg

http://i37.photobucket.com/albums/e76/amartin_72/6%20cubes%2036hz/hlkkkjkk042.jpg

http://i37.photobucket.com/albums/e76/amartin_72/6%20cubes%2036hz/hlkkkjkk043.jpg

http://i37.photobucket.com/albums/e76/amartin_72/6%20cubes%2036hz/hlkkkjkk044.jpg

http://i37.photobucket.com/albums/e76/amartin_72/6%20cubes%2036hz/hlkkkjkk046.jpg

DNick454
12-03-2009, 10:11 AM
Hmmm could probably use another 6" aero for 6 cubes. Only one yields about 28 sq in and for 6 cubes that leaves you with 4.7 sq in per cube which is really low, even for aeros.

DNick454
12-03-2009, 10:13 AM
I'm an idiot... Disregard last post 8" aero lol... I'm just trollin on my iPhone so the text is small. My bad :crap:

amartin_72
12-03-2009, 10:16 AM
Yeah its enough for this sub, box could probably be bigger. only 6mm of xmax

DNick454
12-03-2009, 10:21 AM
Yeah its enough for this sub, box could probably be bigger. only 6mm of xmax

It's probably a good thing. With that little excursion, the smaller net volume should keep it under control mechanically so you can feed it some decent power and take advantage of that high BL and 4" coil.