New RCF bass neo drivers 16"/19"

LN16S400, LN19S400 and LN19S450.

While some of us might wish for beefier coils, and I have my reservations for CCAW coils, this looks great for SPL dense extended lows ported designs. 

For PA, one can simply tune it between 24-28Hz, cut at tuning frequency and simply let the cone do the work. Given the impedance shape, the speaker should not be unhappy to do that, low power compression when working around impedance peak, small port area just for impedance shaping and cooling. 

What say you?!

Although 19" strong motor high excursion driver allows for very compact one-manned box to be made, the driver is alone, proprietary, and when stuff breaks down, there is no adequate replacement. Well, RCF LF21N551 was discontinued without a word, and I do not see how this could not happen with these. That would really suck given the already optimized dimensions and cutouts for such drivers.

CCA wire is aluminum wire with copper plating, so the electrical conductivity is very close to copper I would guess.

There are three good reasons for doing this. 

1) Price

2) Weight

3) Math and physics. If you can wind two or more layers on the coil former, you are adding double the wire, but you are not doubling the gap size.

If the wire is round and each layer goes inbetween of the previous one, you are clearly gaining on Bl big time. That's why this stuff hangs between Bl 32-40 (at 8 ohms). And that means a lot. Especially in efficiency department. 

But it is not free lunch. Reliability issues, less overloading capabilities. The driver will output at least the same as its copper counterpart or even more, but beware if you put your foot down a bit more on it. Faster selfexecution. It goes it goes and then it's dead. 

Just reading this, incase anyone wants to get a bit nerdy on the subject...

Data on this one? This must be bogus. There are good reasons for better heat conductor to dissipate better.

See my nerdy post re CPU heat sinking above.