Portable Boombox help

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lexer98

lexer98

Member
Joined 2014
Silas K said:
Well awesome... Cant use that thing for s*** then haha !!

Oh Well! In going to use the 12v car charger idea then!

Still trying to try and figure out which parts i need to order to the filter!
Click to expand...

What tweeter you will use? ... so I can help you to calculate the crossover

An externally hosted image should be here but it was not working when we last tested it.


The aura would have to crossed approximately 2Khz and impedance at that point is around 15ohms keep that in mind when calculating the crossover.
 
Saturnus

Saturnus

Member
Joined 2005
lexer98 said:
What tweeter you will use? ... so I can help you to calculate the crossover

The aura would have to crossed approximately 2Khz and impedance at that point is around 15ohms keep that in mind when calculating the crossover.
Click to expand...

Since he's building the MINI (dev version) I'm guessing he'll be using the tweeter I recommended and the filter I designed for that ;)
 
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W

WesleyK

Member
Joined 2012
This filter?
BoominatorMINIxo.JPG
 
S

Silas K

Member
Joined 2014
okay.. im going to order the parts from intertechnik.de since they have the dayton tweeters awell... well they dont, but they seem to be on their way to the store..


for the crossover/filter parts could anyone please verify that these are indeed the parts i need? what im going for is the picture in #26

2x https://www.intertechnik.de/Shop/Fr...071mm-Luftspule/_LU25-022-050_1768,de,61,5453

2x
https://www.intertechnik.de/Shop/Fr...en/Corobar-3055/_CO30-056-080_1768,de,72,5481

2x
https://www.intertechnik.de/Shop/Fr...atur-Elkos-ELCAP/_ELCA-22-AX_1768,de,607,3823

2x
https://www.intertechnik.de/Shop/Fr...atur-Elkos-ELCAP/_ELCA-56-AX_1768,de,607,3826
 
S

Silas K

Member
Joined 2014
short and clear answer awesome..

Thinking of ordering from europe audio instead of intertechnik since
a) intertechnik wont get the tweeters the next 2 months
b) their shipping price for 4 caps and 4 coils is 15€

001-0254
Jantzen 5,60 µF cross cap Vdc 400 volt 5%
24.56 (it says its a mkp type)
LU25/022/050
Air core coil 0.22mH 0.62 Ohm 0.5mm
13.42
CO30/056/080
Ferrite core coil 0.56mH 0.30 Ohm
36.60
ND16FA-6
Dayton 5/8 inch Neodymium Dome Tweeter
82.82
EGL/2.2/50/5

True bipolar smooth-foil capacitor 2.2uF 50V
7.55
 
Saturnus

Saturnus

Member
Joined 2005
I sincerely doubt Europe-Audio has them in stock either. Even if they say they do. Please inquire by mail

Accusafe.nl bought all remaining stock in the world (until a new production run from the factory is done in about a month or 2). They might have some but I'm not sure.

Luckily, the development version of the MINI you're building isn't too fiddly with tweeter choice. You can probably use the ND20FA if you aren't dead-set on getting the right tweeters. I'd not recommend the same for the finalized version of the MINI though.
 
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Silas K

Member
Joined 2014
Okay they just stated on their website that they would order them from the manufacturer directly and have them within 1-2 weeks. but i have now emailed them and will see what they answer!

otherwise i will just buy them from accusafe as it is cheeper to buy the nd16fa from them and pay the ekstra shipping than it is to buy the nd20fa.. so i might aswell just buy the right ones..

is the finalised mini going to be much different from the one many have already built?
 
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