Divin'Hoosier:
Supreme has a silver cover, the other has gold.
Supreme has a pretty snowflake etched on the top, the other does not.
Supreme has a lip shield, the other does not.
Supreme has the IP detuned a bit, the other does not.
That's it. No other differences. So if you want to pay $15-20 for a lip shield, a pretty snowflake and a silver face, go for it. Otherwise they are the same exact regulator. I have used my Legend LX ACD in cold water (42-44) numerous times with no problems whatsoever.
Divin'Hoosier nailed it. The only differences are cosmetic as he pointed out above.
The reason they did this is they wanted to come out with a "cold water line" of regulators. Well the Legend LX is already environmentally sealed, so there wasn't much more they could do.
So they added the mouthpeice guard and lowered the intermediate pressure. The lower intermediate pressure helps reduce free flows in colder water.
If you like the "gold band" better but wanted the same thing, you could buy the Legend LX and then buy a lip guard and lower the IP from about 150psi down towards 135psi +/-.
I did the opposite. I liked the silver band better so I bought the Supreme and raised the IP to about 150psi +/- . The lip guard is removable easily (pull it off) for use in warmer water. I did like using it in colder water. It did help some with fatigue on my lips from the cold water.
List price difference between the two models is $15. ($595 vs $610)
BTW... The Titan LX Supreme is more than cosmetic over the normal one. They had to add the environmental seal kit to the 1st stage on that. (Just FYI in case you got to looking at that one).
raypau38:
There is like a 15 dollar difference on the list price and the one LDS said they would throw in the mouth piece on the standard model.
Are you talking about them throwing in the lip guard with the standard model or another mouthpiece? If they are saying the lip guard, then that's nice to have for colder water as I said above. However, the regulator comes with two mouthpieces by default. One "regular" and one "comfort fit". The comfort fit has a rubber bridge in that goes in the top of your mouth. It makes the fit more comfortable. Most folks like it but I'm sure there are a few that don't, but that's expected.