OpenStereoMatrix

Mode 2.0 (Stereo)

Standard left/right stereo wiring for two identical 8 Ω speakers. Choose series or parallel according to amplifier load.

Stereo 2.0 Wiring Amp L Amp R

Mode 2.1 (Stereo + Subwoofer)

Integrate an active subwoofer with a passive LC crossover network.

Stereo 2.1 Wiring with Crossover Amp L R L C Sub
  1. Wire L/R to amp outputs.
  2. Tap output into LC network.
  3. Route low-pass branch to sub.

Mode 4.0 (Quad Speakers)

Four speakers arranged in series–parallel for an 8 Ω total load. Polarities and channel labels corrected.

4.0 Wiring (2×2 Series–Parallel) Amp L L1+ L2– L3+ L4–

Resulting load: 8 Ω per channel.

Mode 5.0 (Surround)

Five identical speakers, no subwoofer. Center wiring and labels have been added.

5.0 Wiring (Front, Center, Rear) Amp FL Amp C Amp FR FL FR C RL RR

Each speaker sees 8 Ω load.

Mode 5.1 (Surround + Subwoofer)

Six channels: front left/right, center, rear left/right, plus subwoofer.

5.1 Wiring Diagram Amp FL Amp C Amp FR Amp RL Amp RR Amp Sub FL FR C RL RR Sub

Use a dedicated subwoofer amp or passive crossover on the Sub channel.

FAQ

What is impedance?
Opposition to AC current, measured in ohms (Ω).
Can I mix speaker impedances?
It’s not recommended—use identical speaker ratings for predictable results.
What is bridged mode?
Two amp channels drive one speaker for higher voltage swing; only one speaker supported.

Glossary

Impedance (Ω)
Combination of resistance, inductance, and capacitance in AC circuits.
Ohm
Unit of electrical resistance. A 1 Ω resistor allows 1 A at 1 V.
Crossover
Network of inductors and capacitors that splits audio frequencies between drivers.
Bridge
Wiring an amplifier so its outputs are driven out of phase for doubled voltage swing.

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