Sundown Audio SA-6.5CX v.2 Bundle: Pair 6.5 in 120-Watt RMS Coaxial Car Stereo Speakers, ROCKMAT 15-25 15 Sq Ft 2.5MM 100 MIL Sound Vibration Deadener Kit, 3-Items

Get more out of your car audio system with a bundle designed for clean sound and a quieter cabin. The Sundown Audio SA-6.5CX v.2 6.5" coaxial speakers deliver detailed mids and smooth highs with premium materials, while the Rockville RockMat 15-25 adds high-mass butyl damping to help reduce panel vibration that can mask bass and clarity. Ideal for cars, trucks, and SUVs, this combo supports a more controlled listening environment for daily driving and high-volume sessions. Key Features And Specs: Sundown Audio SA-6.5CX v.2 Speakers: 120-Watts RMS, silk dome tweeter, hybrid fiber cone, cast aluminum frame, machined aluminum tweeter housing, high-compliance rubber surround, adjustable crossover for midrange and tweeter, 2.75" mounting depth Driver Parameters: RE 3.4 Ohms, FS 58.663 Hz, VAS 19.032 L, Qes 0.753, Qms 4.217, Qts 0.639 Rockville RockMat 15-25 Kit: 15.5 sq ft coverage, 14 sheets (16" x 10"), 2.5MM (100 MIL) thickness, virgin butyl rubber with aluminum heat-resistant coating, pressure-activated adhesive, embossing install indicator, adhesive temp range -14°F to 320°F Included Installation Roller: wood-and-steel roller for pressing material firmly to panels Install the SA-6.5CX v.2 pair as a premium coaxial solution in your factory locations, then apply RockMat to key panels to help lower vibration and improve perceived detail—great for commuters, audio enthusiasts, and anyone building a cleaner-sounding vehicle system.

• Package Includes: (1) Pair Sundown Audio SA-6.5CX v.2 6.5" 120 Watt RMS Coaxial Car Stereo Speakers, (1) Rockville RockMat 15-25 15 Sq Ft 2.5MM 100 MIL Sound Vibration Deadener Car Kit. This bundle pairs premium 6.5" coaxial speakers with high-mass butyl damping material to support cleaner in-car audio, helping reduce panel vibration for better clarity in cars, trucks, and SUVs.
• SA-6.5CX v.2 Premium Coaxial Sound: Sundown Audio SA-6.5CX v.2 is rated 120-Watts RMS and built with a cast aluminum frame, hybrid fiber cone, and high-compliance rubber surround for smooth midrange and controlled midbass. Silk dome tweeter and machined aluminum tweeter housing deliver natural highs with consistent output, while the 2.75" mounting depth fits many factory 6.5" locations.
• Tunable Crossover And Driver Parameters: SA-6.5CX v.2 includes an adjustable crossover for midrange and tweeter to tailor brightness and blend to your vehicle acoustics. Designed with an in-house optimized motor structure plus vented magnetic gap and vented voice coil collar for thermal control during extended listening. Driver parameters: RE 3.4 Ohms, FS 58.663 Hz, VAS 19.032 L, Qts 0.639.
• RockMat 15-25 Thick 2.5MM Damping Layer: RockMat 15-25 provides 15.5 sq ft of 2.5MM (100 MIL) butyl-based sound damping across 14 sheets (16" x 10" each). Virgin butyl rubber with aluminum heat-resistant coating adds mass to panels to help reduce vibration and road noise, supporting stronger bass definition and clearer vocals when installed on doors, floors, trunks, rear decks, roofs, and hoods.
• Flat-Shipped Sheets And Install Tools: RockMat 15-25 ships flat to help avoid bends and creases and features an embossing indicator that presses from hexagon to flat when properly rolled. High-tack pressure-activated adhesive is rated for -14°F to 320°F. Total kit weight is 15.4 lbs (1.1 lbs per sheet). Kit includes a wood-and-steel roller (6.69" length, 1.38" diameter) for firm adhesion.