Line array wiring

[Africa]

Hi Guys,

I am building a mini line array with 12 midbass drivers and a 6 inch ribbon centered be tweeeen the midbasses.

My question is what are my best options for wiring, they are 4 ohm I was thinking of keeping them 4ohm.

How would I wire 12 of them and keep the original impedance of 4 ohms?

 

[nc535]

You can't quite keep 4 ohms. Best bet is 3 parallel groups of 4 in series. Z =4*4/3 = 5.333...

 

[rayma]

Only 1, 4, 9, 16... identical drivers can be wired together for the group to exactly retain their individual impedances.
The number of drivers must be a square number "N" to do that exactly. Then there are sqrt(N) drivers
in each series leg, and there are also sqrt(N) legs in parallel.

 

[Africa]

You can't quite keep 4 ohms. Best bet is 3 parallel groups of 4 in series. Z =4*4/3 = 5.333...

Thank you

 

[Africa]

Only 1, 4, 9, 16... identical drivers can be wired together for the group to exactly retain their individual impedances.
The number of drivers must be a square number "N" to do that exactly. Then there are sqrt(N) drivers
in each series leg, and there are also sqrt(N) legs in parallel.

Thank you.

 

[Africa]

I used this layout and got to 2.9 ohms any suggestions how I can get to about 5 ohms? Or should I just add a small resistor. The drivers I am using are all 4 ohms.

 

[nc535]

yes, do what I suggested

 

[Africa]

Is there any chance you could do a drawing for me please?

 

[nc535]

here you go

 

[Africa]

Thanks so much.