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RE: Cabinet for Tannoy 12"

Posted by blinx7 (A) on June 23, 2014 at 10:46:38

In Reply to: RE: Cabinet for Tannoy 12" posted by andrenel on June 23, 2014 at 00:08:13:

Hey, my mistake, andre. I had indeed been referencing the HPD/Monitor-Gold style of more efficient paperconed monitors (and that's what my cab-building experience is with).

But I might point out that there are two separate kinds of things being discussed, regardless. Or maybe two equally credible lines of thought.

Your end seems maybe closer to home theater, or even pro sound-reinforcement thinking-- separate the frequencies, drive the various freq ranges hard, use whatever electronics or multiple drivers + crossover elements you need, to create a big, multi-source sound. All-rounders, as you say, fit to do the thundering crashes and sound effects in HT or very large-scale music.

From my (short-signal-path, least-in-the-way, fewest-drivers/less-xover/no-sub) kind of perspective it's really only music that is in question, and probably not more than 30hz-18khz anyway. In my view the more integrity the program material has at low volumes-- the bigger of a win, because you can use less tonnage of electronics in the path, fewer components, fewer strategies like neg-feedback or psu filtering & regulation. Vacuum tubes for some parts of the system, transformer-volume-controls, simple circuitry, simple psu's.

On my side of the divide, if you have to push anything hard and then super-damp or loop-feedback or filter it to control it, you're not getting it right. Once you build inefficient drivers into tight, narrow-baffled close-walled pillars, you'll be needing to damp the insides extravagantly to kill reflections, and yes, drive them hard with hundreds of watts to get spls back out of that damped interior.

To my ear, subjectively, the lack of frontage on the narrow baffle wins some battles and loses others. Imaging and disappearing-as-source are the wins, no question; so again, in HT, exactly the ticket. Fullness and organic timbre seem to be the losses. Pillars always seem to suit that kind of electric-bass lounge jazz thing better than they do an acoustic strings-&-woodwinds vibe. Subjective, but maybe it's not just me.

From your side, I suppose, why not divide and conquer, use as much tech as gets the job done and have some overage to spare. Why concern the design with getting all things right when you can cater to those things with auxiliary parts of the system (like multi-drivers, supertweets & subs, for example).

I guess I just wanted to assert that drivers like old-school tannoys, lowthers, etc make sense not because efficiency is required by incompetent amplifiers, but because efficiency complements simple, short-signal-path systems that are inherently low-watt.

Anyway, best of luck with the D900 plans, wish I could have been more help.

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