The RMC series of marine speakers by Rockville are a major upgrade to our old RMS series. Don’t get me wrong we loved our old series, but we strive for perfection. We wanted a speaker that is more durable, more water resistant, can handle more power, and put out better sound quality!As always we sent our team on a speaker-hunting adventure. We tested countless prototypes until the RMC series was born. We ended up with a speaker that has a lot more bass and mids than any other speaker on the market at this price point. This speaker will destroy all those cheap dual cone speakers, and it will compete with top branded marine speakers on the market today!These speakers are completely waterproof and protected from the elements! They are UV treated and have a special waterproof coating to prevent water damage. Rockville engineers care about quality and sound more than anything else. The RMC65B was designed in a molded ABS plastic basket. The polypropylene cone is reliable and sounds great. This material is used on most of the top speakers on the market. We use rubber surrounds on these to eliminate unwanted distortion. In addition rubber is a very waterproof material. The ½" polymer tweeter puts out incredible sounding highs. The low end bass and mids of these speakers really makes them stand out.The RMC65B 6.5" marine speakers were engineered to deliver amazing power and sound quality in the outdoors; be it saltwater, freshwater or any other harsh environments. These speakers can withstand tons of abuse and can handle 300 watts peak and 75 watts RMS each. These Rockville speakers comply with the CEA 2031 Loud Speaker Standard. This same rating standard is used by the highest end marine brands in the industry. CEA compliant means you can rest assured that the ratings are 100% legitimate.