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Multi-Way Conventional loudspeakers with crossovers

HiVi F6 project
HiVi F6 project
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Old 17th May 2017, 07:11 AM   #1
Rakeem is offline Rakeem
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Default HiVi F6 project

Hello everybody, i need some help with my F6 project. I am doing 2 way vented box with follow size 39,3/18,3/23sm. (h/w/d) which is around 16l. I get follow port settings from Swans's representative:
Fb = 55.09 Hz
QL = 7
F3 = 59.32 Hz
Fill = normal
No. of Vents = 2
Vent shape = round
Vent ends = one flared
Dv = 42 mm
Lv = 140 mm
but i am not sure is this good enough. I think Fb and F3 are too high, especially F3.
What do you think about this reccomendations, i need professional advice and i hope to find it here.
Please excuse my english! Thank you!
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Old 17th May 2017, 08:10 AM   #2
Lojzek is offline Lojzek  Croatia
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Ask not for professional advice for I'll have to charge you professionally. Joke!
Your volume calculations are referred to outside cabinet measures (16 litres) and once you account for 19 mm of boards thickness, you end up having 10 litres. This is what you got from Swans' representative. To improve it, need a larger cabinet with lower tuning.
Attached Images
File Type: gif FR.gif (20.9 KB, 426 views)
File Type: gif IMP.gif (12.4 KB, 420 views)
File Type: png F3-F6-F10.png (17.5 KB, 424 views)
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Old 17th May 2017, 08:21 AM   #3
Rakeem is offline Rakeem
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Quote:
Originally Posted by Lojzek View Post
Ask not for professional advice for I'll have to charge you professionally. Joke!
Your volume calculations are referred to outside cabinet measures (16 litres) and once you account for 19 mm of boards thickness, you end up having 10 litres. This is what you got from Swans' representative. To improve it, need a larger cabinet with lower tuning.
Here is the plan of the project, the measures are internal and the boxes are almost done.
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File Type: png F6 Project.png (67.2 KB, 431 views)

Last edited by Rakeem; 17th May 2017 at 08:40 AM.
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Old 17th May 2017, 09:07 AM   #4
Lojzek is offline Lojzek  Croatia
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I'll prepare a solution a little later afternoon.

edit: a quick sim is all we need and I propose to experiment with vent length. Longer ones will sound better in corners, shorter in open space away from walls. Gotta go now. Prepare one camel as a payment.
Attached Images
File Type: gif FR.gif (21.0 KB, 425 views)
File Type: gif IMP.gif (12.5 KB, 45 views)
File Type: png F3-F6-F10.png (40.5 KB, 36 views)
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Last edited by Lojzek; 17th May 2017 at 09:25 AM.
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Old 17th May 2017, 10:02 AM   #5
Rakeem is offline Rakeem
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Thank you, the speakers will be next to the TV,very close to the back wall. Typical bookshelf speakers.
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Old 17th May 2017, 06:35 PM   #6
troystg is offline troystg  United States
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I removed the drivers from my old B&W 805's and put in the F6 and the "pod" hivi tweeter using the original ported enclosures and XO. Had to take a few turns of wire of the inductor but other than that they made FANTASTIC speakers.
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Old 18th May 2017, 11:46 AM   #7
Rakeem is offline Rakeem
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Quote:
Originally Posted by troystg View Post
I removed the drivers from my old B&W 805's and put in the F6 and the "pod" hivi tweeter using the original ported enclosures and XO. Had to take a few turns of wire of the inductor but other than that they made FANTASTIC speakers.
Yeah, F6 is very good driver, would you share some pics?
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Old 18th May 2017, 06:08 PM   #8
dtaylo3 is offline dtaylo3  United States
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see the Nephila kit at Meniscus Audio. Rave reviews
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Old 19th May 2017, 01:37 AM   #9
troystg is offline troystg  United States
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Quote:
Originally Posted by Rakeem View Post
Yeah, F6 is very good driver, would you share some pics?
I asked my daughter to send me some.. she took them to college with her.

Sent from my SM-S975L using Tapatalk
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Old 19th May 2017, 06:51 AM   #10
wolf_teeth is offline wolf_teeth  United States
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Quote:
Originally Posted by dtaylo3 View Post
see the Nephila kit at Meniscus Audio. Rave reviews
Thank you! I really liked that design, and it looks pretty good too!

Later,
Wolf

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