Line Array Impedance HELP

[Dominick22]

I have 12 drivers at 6 ohms a piece that I am trying to configure into a line array, but I am struggling with the series/parallel wiring. My goal is to create a single load between 4-8 ohms.

Help please! If I need to add a few speakers to make it work-I can!

Thanks,
Dominick

[happy.gringo]

Wire 4 speakers in series to get 24 ohms. Do 3 sets of these and then parallel the three sets. This will get 8 ohms total. Maybe someone can diagram it for you.

[adason]

no problem, go to zalytron (http://www.zalytron.com/) and scroll down to line arrays, see all the wireing diagrams
do power tapering, that sounds better
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[Dominick22]

happy, could you please explain step by step the math you used to get 8 ohms?

Because I am arriving at a figure much lower than that.

Thanks,
Dominick

[saramac]

Go to 12volt.com There are Impedence calculators there that will help you

[saramac]

I'm sorry it's The12volt.com It loads slow but has what you need. Dig around that site for an impedence calculator.

[bluegti]

First wire 3 sets of 4 drivers in series.

Rseries = R1 + R2 + R3 + R4
or
Rseries = 6 + 6 + 6 + 6
or
Rseries = 24

Next wire the 3 sets of drivers in parallel.
(1/Rtotal) = (1/R1) + (1/R2) + (1/R3)
or
(1/Rtotal) = (1/24) + (1/24) + (1/24)
or
(1/Rtotal) = (0.0416667) + (0.0416667) + (0.0416667)
or
(1/Rtotal) = 0.125 (I removed the rounding error)
or
Rtotal = 1/0.125
or
Rtotal = 8

Hey... I actually learned something useful in Physics class.

[Dominick22]

Thanks a ton--I have it working now-what I did wrong was place a single copper stand accross the terminals insteat of terminating them in between! What an amateur move.

Thanks guys!

Dominick