Got some PA speaker want to do something crazy! Ideas?

Started by MattAnonymous, April 08, 2004, 12:00:15 PM

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MattAnonymous

I've got 2 12" 2 4" and a horn.  My friend gave these to me with one condition.  I do something incredible with them.  He suggested a rotating speaker cab.  I dunno.  Any suggestions?
It's people like us who contribute to dead fx pedals selling on eBay for what they'd cost new!

petemoore

I did that...sounds fantabulous.
 I had a three speed turntable drive horn leslie
 I stuck a phone plug through the platter, used breaker points for ring connection, and a string pellet for the tip, mounted in a C-ration [nylon] spoon. To my surprize it worked perfectly the first time.
 Once I had rotating connections the horns got mounted on the platter, [these werent the nicest horns in the world, but did the leslie trick effectively]. Crossover the horns.
 Look at a leslie and youll see the bass woofer stays stationary, only the rotating waveform 45degree deflection [partial] tube rotates. For this again plywood forming a scoop at the bottom, just the right size for a tunrtable platter...the closer you get the rotating tube [without touching] to the Speaker Enclosure [heavier the wood here the less the speaker cancels the leslie effect]. Very convincing [well it IS a leslie rotating speaker] and excellent for guitar organ etc sound. Three speeds available with some old record players...the belt drive models could possibly be modified for speed.
 Those are probably great hi fidelity speakers, the speaker [1 per rotating device of course] is the main deal, how good it sounds is what makes the thing cool. I tried different types. A big EV worked reallly good, and could handle alot of output, the Celestion GB of course sounds sweet like they do and gets a 12'' cone to sound about as loud as 'good' [for a 12'' cone] allows. The PA speaker sounded louder.
Convention creates following, following creates convention.

Mark Hammer

Build 3 power amps.  One carries straight signal and goes to one speaker.  Another carries reverb only and goes to the small ones.  The third carries wet signal, whether phase-shifted univibed or chorus only.

If you need inspiration/motivation, go listen to a Roland JC-120 and tell me if that isn't one of the nicest chorus sounds you've ever heard.  *True* stereo modulation is a joy to behold.

Paul Marossy

Something crazy? You could smash your guitar on them while it's on fire, in your birthday suit... some people might think that is crazy.

I think the Leslie-type speaker cab sounds like a cool idea.