Build Your System
Answer a few quick questions about your vehicle, electrical system, and acoustic preferences for a verified hardware shortlist.
1. Vehicle & Source Electrical
Factory amplified systems often require a premium active Line-Output Converter (LOC) or DSP interface to overcome factory bass roll-off.
Subwoofer Wiring & Impedance Calculator
Once you've chosen your drivers, map out the exact series/parallel wiring to find your final amplifier load — and confirm it stays within a safe impedance range.
Subwoofer Wiring & Impedance Calculator
Series vs. parallel dual voice-coil loads. Match your final impedance to a CP Audio driver and a stable amplifier.
Series sums impedance (higher load, less power). Parallel divides it (lower load, more power — but demands an amplifier stable at that impedance). Never wire below your amplifier's documented minimum.
Loads of 2 Ω and above are supported by the vast majority of monoblock and multi-channel amplifiers. Always confirm RMS power output at this exact impedance.
This calculator computes nominal impedance only. It does not determine safe listening levels, loudness, electrical capacity, or amplifier compatibility from wattage alone. Confirm your amplifier's rated RMS output and minimum-impedance stability at this load before installation.