Alpine R-A90S Speaker Accessories or configured in a down-firing

or configured in a down-firing position

digital multimedia receiver for use in 2014-up Harley-Davidson touring motorcycles

At the core of the CF-350mt mid-tweeter is a proprietary 3

they feature polypropylene cones and a silk dome pole mounted Piezo tweeter and midrange

full-range Class-D amplifier capable of operating at 4Ω or 2Ω stereo and 4Ω bridged/mono

Alpine R-A90S Speaker Accessories or configured in a down-firingFor loud and realistic sounding music Into high res music? Alpine's R Series R A90S amplifier reproduces high frequency sounds up to 45,000 Hz, so you can enjoy the clean sound and enhanced realism you want in your music. Alpine applied some hot technology from their top of the line X Series amplifiers into this R Series amp, including the use of high efficiency transformers and premium custom capacitors in the amp's construction. Dual "Sierra"