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Infinity Reference REF407F 4" 2-way car speakers are a high-efficiency upgrade designed to fit behind factory grilles or panels in most applications
Basket and Finish: Gunmetal-colored stamped basket adds durability and a distinctive visual identity
Ensure sufficient mounting depth (3
Variable low pass filter: Fine-tunes the upper frequency limit sent to the sub
Proprietary high-output woofer: Designed to deliver strong
Hifonics Zeus BXiPRO1.0 Digital BASS Enhancement Processor Car Audio Infinity Reference REF407F 4" 2-wayThe Hifonics Zeus BXiPRO1. 0 Digital BASS Enhancement Processor is a dedicated bass processor that accurately recreates and reinjects low frequency information back into the signal path, delivering deeper, more present bass for your music. It includes a dash mount remote for quick, in dash tuning from the driver's seat. Bass driver circuit that accurately recreates and injects low frequency information: Reintroduces low end energy into the signal path
