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My lokal supplyer of board have "fake" walnut and oak 18mm at nice price.
The 511B is what i have got.
I will try the 808 8a first and if hf is missing i go for BMS.
In the plans i´v got i dont...

I want to build model 19.style.
Parts that i have is pair of 511B
two pair 416 8a
D140R
1209 8a xo,
808
bms 4550
Will 416 8A work in 19 box?

LF net is 3,9 mh 55uf,net for the 500hz peak is 10uf 10mh(hand wound with 0,8mm wire for 5,8dcr)
MF net is 0,5 mh 33uf 3,3mh 4,7uf 3,3R serie 12R paralell.
HF net is 3,7uf.

I want to try c-c...

A friend came over and helped me measure the 816 and mutis`.
Pics of result in this tread..
http://www.hififorum.nu/forum/topic.asp?TOPIC_ID=74565&whichpage=2
After that som new filters came upp....

I have tried too damping the box and whith less damping it sounds "horn"
Now it sounds wery well when box is nearly filld whith damping

http://i194.photobucket.com/albums/z134/hoktuna/DSC08224.jpg
http://i194.photobucket.com/albums/z134/hoktuna/DSC08226.jpg

I have play the proto boxes for a week and sound is "honking":(
http://i194.photobucket.com/albums/z134/hoktuna/DSC_0088.jpg

Is there a ral number for "theater grey"paint.

I`m planing to build some 816 boxes.Now i playing onken 360 L and homebrew 1005 multicell on top Beyma cp16.
http://audioheritage.org/vbulletin/showthread.php?t=17258&highlight=onken+multicell
The...

After a month of listening i can say,i´m home:).
i´m in too horn;)
Onken 416 8a is the best bass i have ever heard.And the multicells just fill the room with music.No horn beam at all,it is soft...

This multicell made of board is a prototype.
Now i have practice machine and glue tecnic.
Next multi will be 1505 B in 4mm plywood.

Thank you for the warm welcome.
The filter is a simpel firs attempt:o:tips and tricks are welcome.
I have not make any measurement i have no eqipment.
Filter for the horn is 12,6uf then 20 ohm and...

i,m not so good at english so i post some more pic,s:o:
The setup is Wadia cd and dac.
Diy pre amp with 417 tubes and Lundahl 1674 transformers.
Power amp is diy 4 6550/cannel in ul mode.
There...

Hi i,m newbie in this forum!
My name is Hans-Olof and i live in Sweden.
This is my first experience with Jbl and Altec stuff.
I have made it from 3,2mm board and cote it with spray tar.
The...