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Author Topic: Bigger better louder PA, but 1 (one) man operation.  (Read 4584 times)

Stephen Kirby

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Re: Bigger better louder PA, but 1 (one) man operation.
« Reply #70 on: January 11, 2018, 04:54:36 pm »

Something else I've observed from product videos is the minimum height of the Duratruss and ST-132 stands-it appears to be around 6'.

Is this the case?  I may not be tall enough to single handedly put an SM-80 up on one.

Best regards,

This is why I typically stand on my subs to put the speakers on.  Otherwise it's essentially an overhead lift, although that does make it easier to see the pole cup.  :D

Peter Morris

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Re: Bigger better louder PA, but 1 (one) man operation.
« Reply #71 on: January 11, 2018, 06:44:33 pm »


Is the dual 21" sub your own design as well?  If so, is there information about the sub in the Soundforums thread about the New DIY Mid High box?

It’s basically 2 of the B&C standard 21” designs joined together with the dimensions adjusted slightly to match my existing double 18” subs – same height and depth. The both have almost the same tuning frequency and phase response so the play well together. I have reduced the timber thickness (25mm to 19mm) and added substantial bracing to reduce the weight.
The width of the box is exactly the same width as my Turbosound Flex Array so you can neatly stack four Flex on top.  They are also sized so they will fit through a standard doorway and are truck and van friendly.

There is a heavy duty pole mount on the side so you can use a K&M winch up pole ...

and a hole and tube in the top of the box so the winch up pole can be dropped inside the dox leaving just enough space so the handle can be turned (see my above picture). This limits the height that you have to lift your mid – hi speaker to get it on the pole and makes the pole very stable. 

In addition there are two mounting points on the back of the box to connect the winch pole.  The pole just drops in place and is secured by one quick release pin.
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