by yanndj on 27 Feb 2012, 13:32
Hello
Just ading my two cents ;-)
First there is a way to avoid connecting powered speakers to the mixer/deck/whatever. But you still need to connect them to mains. Battery operated powered speakers do exist but they are of very limited power and continuous working duration (i.m.o. not suitable for a dancefloor).
Second i would never trust 2.4Ghz wireless transmission, this band and neighbor ones ared used by so many devices, including phones, microwaves oven etc...
The 5.6 Ghz band seems safer, but is it allowed everywhere ? Some countries are very restrictive about waveband use...
And no the wireless transmitting devices doesn't need any software or PC to operate, they have analog audio (and video) inputs and outputs.
About technology, some things bear physical limitations, i.e. the size of speakers cabinets. You can reduce the size of them, without losing quality only if you accept a loss of efficiency. Since the 80's there have been some improvements, but not real changes in speakers.
Same goes for energy transport. Wires still seems the only efficient way to do it.
On the other hand i do agree that more things changed in the lighting field, LED lamps and screens are really great. You can get effects you could never have dreamed of before, and put light in places where it was impossible before. But be careful with LED : the theoretical lifelenght of a LED is at least 20k hours, even 50k. But this is true if they are supplied the correct and regulated current, and appropriate heat dissipation device (heatsink usually). Most LED lighting devices manufacturers use poor current regulation, too small heatsinks (for cost reduction) or, worse, overpower their LED to get more light (to sell more !). I often see LED lighting devices out of order after a few months of continuous operation...
So technology is one thing, and commercial devices may be another ;-)
c00l People MV Society 
