Product Overview

Description

A serious step up for a 2009–2026 Ram 1500 Crew/Quad: four high-sensitivity neodymium mids on a compact four-channel amp, with an amp-and-wiring upgrade built into the options.

What's in the package

  • 2 × DS18 69PRO400NMR-4 — 6x9" high-sensitivity neodymium midrange loudspeakers (front doors, one per door)
  • 2 × DS18 69PRO400NMR-4 — 6x9" high-sensitivity neodymium midrange loudspeakers (rear doors, one per door)
  • 1 × DS18 FRP-1.2K4 — 4-channel compact full-range Class-D amplifier, 1200W RMS, with OFCKIT4 4-GA copper wiring — or upgrade to the FRP-2.4K4 (2400W RMS) with the OFCKIT0 0-GA kit

Fitment

2009–2026 Ram 1500 Crew & Quad Cab: 6x9" front and rear door locations — four speakers, one per door. One amplifier channel per door; 4-ohm drivers throughout.

Every component ships new in its retail packaging. Continental US shipping.

Free shipping on orders $150+

FAQs

Please read our FAQs page to find out more.

RMS vs. MAX power — which number do I actually care about?

RMS is what your gear handles continuously; MAX is the short burst it can survive without complaint. Match your amplifier's RMS output to your speakers' RMS rating — sizing off the MAX number is how magic smoke gets released.

What does the IP65 rating on DS18 marine gear actually mean?

It's dust-tight and rated against low-pressure water jets from any direction — built for spray, rain, and the occasional wave over the bow, not for full submersion. If something's going somewhere it could sit underwater, that's a different conversation entirely.

How do I match an amplifier to my speakers without guessing?

Add up the RMS rating of everything the amp will power, and pick an amp whose RMS output (at your speakers' impedance — usually 4-ohm) lands close to that total. Undersized is thin sound; wildly oversized is a fast way to blow a voice coil.

Can I mix marine-grade gear into a standard car audio setup, or the reverse?

You can run marine-grade gear in a car — it's just over-built for that environment, no downside besides cost. Running non-weatherproof car audio gear in an open UTV or boat is the direction that causes problems.

What gauge wiring kit do I need?

It scales with your amp's power draw and the length of the run — DS18's OFC kits come in 4-gauge and 8-gauge for a reason. Undersized wiring on a high-draw system is a voltage-drop and heat problem waiting to happen; when in doubt, size up.

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