Ohmic Audio

🔰 BEGINNER LEVEL: Multi-Amplifier Systems

Why Multiple Amplifiers?

Single amplifier limitations: - Must power all speakers - Compromise between power and channels - Less flexibility

Multiple amplifiers benefits: - Dedicated power to each speaker type - Better control of each component - Easier to upgrade one section - Higher total power possible

Typical multi-amp system: - Amp 1: Front component speakers - Amp 2: Rear fill speakers - Amp 3: Subwoofer(s)

Power Distribution Basics

All amplifiers need: - Power wire from battery - Ground wire to chassis - Signal input (RCA) - Remote turn-on signal

Distribution block simplifies:

Illustration note: Photo of actual distribution block showing main input, multiple fused outputs, and proper terminal connections

One main power wire to block: - From battery (fused at battery) - Large gauge (0 AWG typical) - Shortest path possible

Multiple outputs from block: - To each amplifier - Each output fused individually - Appropriate gauge for each amp

Example: - Main input: 0 AWG, 200A fuse - Output 1: 4 AWG, 80A → Front amp - Output 2: 4 AWG, 60A → Rear amp - Output 3: 4 AWG, 100A → Sub amp

Ground Distribution

Same concept as power:

Option 1: Each amp grounds separately - Multiple ground wires - All to same chassis point - Best practice

Option 2: Ground distribution block - One main ground to chassis - Block near amplifiers - Individual runs to each amp

Never daisy-chain grounds!

Bad: Battery → Amp 1 → Amp 2 → Amp 3 Good: Battery → Block → Each amp separately