Ralph’s Radio has been in the car audio business for what seems like an eternity – our roots trace back to 1949. What … Read More...
OEM Audio 101: Does It Matter if My Factory Radio Has All-Pass Filters?
If you’re planning on having someone upgrade the stereo system in a late-model car or truck, you need to know about all-pass filters. Sometimes called phase EQ or phase rotator filters, this type of … [Read more...]
DSP 101: Input Connections and Signal Mixing
When it comes to feeding a signal into a digital signal processor, most high-quality units provide your installer with a few options. While even the most basic include RCA inputs, some add the ability … [Read more...]
Product Spotlight: Rockford Fosgate P300-10T Powered Subwoofer
Adding great bass to your truck’s audio system is easy with the Rockford Fosgate P300-10T powered subwoofer enclosure. This 10-inch bass upgrade system includes a Punch 10-inch subwoofer installed in … [Read more...]
Not All Car Audio Sound Deadening Is the Same
When it comes to choosing sound deadening, not every option on the market is the same quality. Different materials, varying thicknesses of butyl and aluminum, and options for foam or lead mean that … [Read more...]
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