I am a beginner and i need help with my speaker build

[AgentMike]

So i will give now the photo and information of the build
For the box of the speaker i have found a guy that gave it to me for free.

As for the speakers I have chosen
Subwoofer : Dayton audio epique E180He-44(does 4+4 mean 8ohm?)

Midrange: Markaudio maop 11

Tweeter : Skar audio VX4-ST super tweeter 4 ohm ( I wanted to buy from kleinanzeigen a scan speak 2905 tweeter but it is sold)

For the amp i chosen Wondom jab5 4×100W
And a battery board that need to be change because it can not supply enought amps to the amp board
And i want to build the crossover myself so i can learn something new and useful

 

[AgentMike]

PDF from amp board and battery board
I am open to design changes since I think that I have made a lot of mistakes

 

[xXBrunoXx]

(does 4+4 mean 8ohm?)

it can be wired either 2ohm or 8 ohm ( parallel or series of the two voice coils ).

 

[AgentMike]

I see I need to look on YouTube how

 

[xXBrunoXx]

Nice speakers !, why not buy a DSP ? and do the filtering before the power amp ?.

 

[AgentMike]

Wondom jab5 has DSP build in

 

[AgentMike]

This is the programming file I think

 

[xXBrunoXx]

Since your amp has DSP , no need for crossovers !, You have only one amp 4 ch ?. if yes, you'll need one more for the tweeters, a 2ch amp.

 

[AgentMike]

?

 

[xXBrunoXx]

You want to build only one speaker ? Prortable ? or two ? .

 

[AgentMike]

I have only 1 box and I want to build it portable

 

[opusadat]

You may try this one! opps... opposite of 1.8mH the cap value is 3.3uF 🙂

note: use all cap min 100V, 2.2/3.3/4.7 are quite reasonable price but 15/33 may be quite a bit expensive but you may use two electrolytic capacitor in serise in this manner ---| (---) |---- [33 + 33 uf = 16.5 uf]

 

[AgentMike]

I was thinking when I design the crossover that the subwoofer works till 1500 hz and then the midrange starts from 1500hz till 10k hz and from there takes the tweeter

 

[AgentMike]

You may try this one! opps... opposite of 1.8mH the cap value is 3.3uF 🙂

note: use all cap min 100V, 2.2/3.3/4.7 are quite reasonable price but 15/33 may be quite a bit expensive but you may use two electrolytic capacitor in serise in this manner ---| (---) |---- [33 + 33 uf = 16.5 uf]

Does your crossover also has the value that I want?

 

[opusadat]

@AgentMike, 800 | 1000-5000 | 7000 ----

 

[AgentMike]

I see I does not have

 

[picowallspeaker]

You have only one amp 4 ch ?. if yes, you'll need one more for the tweeters, a 2ch amp.

Maybe it's better to put the work In the passive filters for the Maop 11 and the Skar tweeter. Since there are 2 amplifiers per channel, the crossover frequency can be kept rather low (200-300 Hz?) ...
I dunno, the dual voice coil suggests to use all the 4 channels for the woofers!!!

 

[AgentMike]

I see that my amp board has adau1701 dsp and a program called sigma studio.
Can I install crossovers and then do fine tuning in the program?

 

[AgentMike]

Maybe it's better to put the work In the passive filters for the Maop 11 and the Skar tweeter. Since there are 2 amplifiers per channel, the crossover frequency can be kept rather low (200-300 Hz?) ...
I dunno, the dual voice coil suggests to use all the 4 channels for the woofers!!!

You mean that I should connect al the 8 cables to the subwoofer since the amp board can 4 ch 100w , 3 ch 1×200w 2×100w or 2 ch 2×200w

 

[picowallspeaker]

I don't know your attitude towards this build. If it needs batteries, then it's gotta be mobile or... private grid!!
So, if mobile and less power hungry, try 2 channels splitted woofer( series connected) and midwoofer+twetter passive crossed.
Or the power subwoofer system that uses 2 more amplifiers for the midwoofer and tweeter.