DC Gold's Reference Line of speakers use Beryllium in the center of the speaker cone instead of the less expensive aluminum used in their other speakers and their competitor's speakers. Beryllium is a very expensive light metal, but it has superior properties for sound conduction and is extremely weather resistant.
Even though these speakers have similar specifications to the DC Gold classic line of products, Beryllium gives these speakers superior overall sound quality. For more information on the properties of Beryllium, visit Wikpedia.
Patented technology allows these speakers to have only a single cone and voice coil and still produce frequency response superior to many component speaker systems! A single voice coil eliminates all crossover phase and time distortion while preserving the same sound pattern as the microphone recorded. Amazing!
These speakers use neodymium magnets which are more powerful yet much lighter than ceramic magnets. This allows for a lighter, smaller magnet structure so that more sound producing power is packed into a smaller speaker with less distortion.
Fully waterproof and UV protected. 3 year manufacturer's warranty! Ferrofluid to center and cool the coil 80 Watts RMS Continuous Power each speaker 300 Watts peak power each speaker 4 ohms 92 dB SPL IW / 1 meter Cutout dimension: 6.23" Mounting Depth: 3 .22" Grill size: 7.4"
Impressive. I was a little skeptical on these so I only got 4 for the cabin. I'm quite happy. I have 1400 watts Alpine RMS in the boat. These speakers in the cabin has 100 RMS on them each. They handle it fine. I have the stereo tuned to run at full volume. I don't have the exact numbers on me but the crossover on the amp for these tuned in for lower frequencies than my kicker HLCD tower speakers. These rock and are worth every dime. Full waterproof and great sound.