Originally Posted by Bassman62
The point is if it works there is the proof, I build my own cabs using Eminence Neos to a compact design built from 12mm ply with bracing struts on all internal walls, I don't need to augment through F.O.H on all but the largest gigs.
The overall build cost to me is around £100 GBP including castors (I don't have to pay for a nameplate).
Gone are the days when a huge W folded horn cab was needed to pump out the sound.
More to the point and slightly digressing is how compact sound systems at concerts are these days compared to 20+ years ago when you saw loads of various types of cabs stacked up to the roof either side of the stage for the disabled or mentally impaired sound engineers and crew.
Back in the day we would drive 15" JBL 4560 cabs with 150 watts of the old Amcron DC 300' IE half a channel and we did the same with 16ohm 2" horn units and 16 ohm 1" horns above that.
At Tasco sound and light we used eventide digital delay to time align the rig and Midas consoles to mix with.
Knebworth main stage for the big lips tour had thirty DC 300's a side.
It was loud clean and very punchy and the sound didn't tend to blow away in the wind quite as much as the arrays we have today, as we had a speaker on axis with just about everybody in the audience it only lost out at the windward end of the stage a bit.
Yes the old stuff was better for windy outdoors where there is no substitute for cubic inches.
And the new array is very much better for indoor closed environments where notch filtering and pulling phase nodes about with digital system controllers is handy.
Now without all the horn loading of the old school system, the
industry standard amp has gone from the Amcron DC 300A at 500watts per channel to about the same number of MA5000VZ's. at 2500 watts a channel.
The thing is that with all that plywood around one fifteen a whole 40 footer full of 4560's only weighed 6 tons and that's not an efficient load when the vehicle is OK for 19 tons.
So after the seventies Things just started getting smaller and heavier and now they are getting even smaller and much much lighter but the power supply cables are getting immensely heavy.
Of course the old school efficiency is making a comeback with lightweight materials and so we are moving steadily back to the seventies designs for outdoor gigs.
Takes me right back to the old Martin systems, the midrange phase plugs are kind of cool diversion from the old Phillishave style mids.