maddmaxxx wrote:-the originals are 4 ohm x4 woofs

-the silvers/plats are 16 ohm x3 or 4 woofs

-pretty much originals are rated 4 ohm total

-sil/plats 8 ohm total [actualy 6.6 ohms]

The wiring diagram is wrong then....

anyway.

For 4 X 4 ohm drivers, wire the top two in series (for 8R), the bottom two in series (for 8R), and then the two arrays in parallel (back to 4R)

The wiring diagram shows the silvers and plats all in parallel, 3 drivers would be 5.3 ohms, 4 would be 4 ohms.

Resistance in series is just added.

Resistance in parallel is the inverse of the sum of the inverses (nine times fast

- take the inverse of each resistance, add each number together, take the inverse of that.

so for 4 16R drivers in parallel:

R = 1/ (1/16)+(1/16)+(1/16)+(1/16)

R = 1/ 0.0625+0.0625+0.0625+0.0625

R = 1/ 0.25

R = 4