The PSS-22WRA is a 600-watt, 9-speaker sound system for 15-18 JKU models. Unique to the PSS-22WRA are the weather resistant products that make up the system. Each component is IP rated with a minimum rating of IP55, so the sound system isn't compromised if light rain or dust gets into the Jeep. The SPV-65X-WRA speakers are also available as a stand-alone product and come with adapters allowing them to be converted into component or coaxial sets, which makes them flexible for installation in the front or rear factory openings in 15-18 JK models. Debuting in the PSS-22WRA are two new Tough Power Pack amplifiers, the 4-channel KTA-30FW and mono KTA-30MW. The small footprint of these amplifiers lets them be tucked away under the dash or other compact area. The amplifiers use proprietary Dynamic Pulse Power (DPP) technology, which delivers bursts of power during rigorous musical passages. When the amplifier senses that more power is required, the power supply quickly increases the internal gain level, effectively doubling the power when needed.