Home » RFTECH » Woofer WiringWizard Woofer WiringWizard  Home     Knowledge   Base     Woofer   WiringWizard     Woofer   BoxWizard     Discussion   Forum     Amp Wire   Calculator     Repair   Status    Search by Woofer Impedance Search by Amp Impedance Wiring Formulas Need to know what wiring method will maximize amplifier power output to your woofers? Just select your lowest recommended amplifier impedance to find compatible options. Choose Amplifier Configuration <Select Impedance>   0.5Ω Amp Load      1Ω Amp Load 1.34Ω Amp Load      2Ω Amp Load 2.67Ω Amp Load      3Ω Amp Load      4Ω Amp Load      8Ω Amp Load New Speaker Polarity Positive + Negative - red post black post Old Speaker Polarity Older Rockford Fosgate speakers (SP, SPP, RFA) utilized painted dots to indicate terminal polarity & impedance. Positive + Negative - purple 4Ω no dot red 8Ω no dot Knowledge Base Differences between SVC and DVC subwoofers Differences between subwoofer voice coil types How do speakers get blown? Why do they sound distorted? Instructions on building a subwoofer enclosure 600 S. Rockford Drive, Tempe, AZ 85281 - U.S.A. © 2008 Rockford Corp. All rights reserved.