Crank up stands and LOUD powered

G

Grant Conklin

Freshman
Jan 12, 2011
87
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6
St. Paul, MN
www.g-forceproaudio.com
I'm working on a solution for a customer that involves lifting 2 - 100 pound speakers up with a crank up stand. So, there are 2 parts to my question:

1. The Stand.
So far the one that has my attention is the Applied Electronics L-16 Mobile ( Crank-Up Lifts Applied Electronics ), mainly because of it's legs that will adjust for not-level ground.
* Is the use of a stand like this on frozen / snow packed ground advisable? If not, is there a stand that is?
* Are there any other adjustable leg stands I should consider?

2. The Speakers.
They need to be beastly speakers, preferably powered. Right now I'm leaning toward the new RCF TT5-A (MAP $3999, RCF - TT5-A ). It is relatively small for what it can do, gets very loud, and has an x/over freq of 650 Hz on the 4" compression driver, so it should project very well for outdoor crowds. My customer probably does not need sound quality that good however, and saving $1000 or more per box would be desirable. Any suggestions that offer similar output and portability?

Thanks much!
Grant
 
Re: Crank up stands and LOUD powered

The L-16 Mobile lifts look good, but for snow use I'd want to see plywood under the legs, the black surface can absorb the suns heat and melt .

The RCF TT5-A also looks good, though appears that the 136 dB output would only apply to the upper midrange of the compression driver, wouldn't expect more than 130 db at 650 Hz, and less down lower.

At around $1000 apiece retail, three Mackie HD 1521 would totally smoke a single RCF TT5-A for output, and one would be close.
 
Re: Crank up stands and LOUD powered

Art Welter said:
The L-16 Mobile lifts look good, but for snow use I'd want to see plywood under the legs, the black surface can absorb the suns heat and melt .

The RCF TT5-A also looks good, though appears that the 136 dB output would only apply to the upper midrange of the compression driver, wouldn't expect more than 130 db at 650 Hz, and less down lower.

At around $1000 apiece retail, three Mackie HD 1521 would totally smoke a single RCF TT5-A for output, and one would be close.
Click to expand...

Thanks Art. Good point on the plywood. If I can get 130db at 200hz that would be awesome. I don't know if it's realistic. I've also looked at the EV ZX5a.
 
Re: Crank up stands and LOUD powered

Hi Grant,

How high do you need to go?
The Ultimate Support TS99BL stands got to 9'2" and have a leveling leg.


What about Danley SM80s or OS80 for outdoors?

Good health, Weogo
 
Re: Crank up stands and LOUD powered

Weogo Reed said:
Hi Grant,

How high do you need to go?
The Ultimate Support TS99BL stands got to 9'2" and have a leveling leg.


What about Danley SM80s or OS80 for outdoors?

Good health, Weogo
Click to expand...

Thanks Weogo!
Those stands might be just what the doctor ordered! They even make it easy to raise that load. I probably would have liked more height, but all things considered, 9' works.

I love Danley, but our local rep has agreed to only have 1 dealer service all of MN, and that dealer is not G-Force.

Thanks,
Grant
 
Re: Crank up stands and LOUD powered

I have a bunch of L-16's and they are great for everything EXCEPT speakers. Know that the load has to be balanced and can not cantilever out like a genie tower. If you have one speaker hanging, you need a second to balance out the other side or fabricate a mount to hang directly over the center of the mast. They do not like off center loads. We tried several prototypes to rig three VRX off a L-16 and couldn't come up with anything that wasn't atrocious or completely sketchy. We ended up bending the top metal of the mast with our best solution due to the side forces....and we have pretty good fabrication capabilities.
 
Re: Crank up stands and LOUD powered

Shawn Keck said:
I have a bunch of L-16's and they are great for everything EXCEPT speakers. Know that the load has to be balanced and can not cantilever out like a genie tower. If you have one speaker hanging, you need a second to balance out the other side or fabricate a mount to hang directly over the center of the mast. They do not like off center loads. We tried several prototypes to rig three VRX off a L-16 and couldn't come up with anything that wasn't atrocious or completely sketchy. We ended up bending the top metal of the mast with our best solution due to the side forces....and we have pretty good fabrication capabilities.
Click to expand...

Thanks for the info Shawn. If we go the L-16 route, I'd put a 6' chunk of truss up there and hang 1 speaker on either side. More likely though, is Weogo's Ultimate Support suggestion.

Grant
 
Re: Crank up stands and LOUD powered

Weogo Reed said:
...
The Ultimate Support TS99BL stands got to 9'2" and have a leveling leg. ...
Click to expand...

FWIW, I have 7 year old Ultimate (edit) TS99B's which also claim a 150lb load. I won't raise my 55lb TT22A's on them more than ~7 feet, they just don't feel very sturdy (sway). I used to fully extend with 40 pound speakers, but with 55 pounders it sways to easily for me. Maybe the TS99BLs have a bigger footprint, or thicker aluminum, but they seem to have the same load rating which makes me think they are similar construction with just an added tilt leg. An easy return policy might be useful.

YMMV.
 
Last edited:
Mark McFarlane said:
FWIW, I have 7 year old Ultimate (edit) TS99B's which also claim a 150lb load. I won't raise my 55lb TT22A's on them more than ~7 feet, they just don't feel very sturdy (sway). I used to fully extend with 40 pound speakers, but with 55 pounders it sways to easily for me. Maybe the TS99BLs have a bigger footprint, or thicker aluminum, but they seem to have the same load rating which makes me think they are similar construction with just an added tilt leg. An easy return policy might be useful.

YMMV.
Click to expand...

I have recent TS99B (and BL) stands and I get nervous with a K12 up high on them.


Sent from my iPad HD
 
Re: Crank up stands and LOUD powered

Rob Spence said:
I have recent TS99B (and BL) stands and I get nervous with a K12 up high on them.


Sent from my iPad HD
Click to expand...
i agree completely. My previous system was 100lbs, and though well within the spec for the TS99s, I was never comfortable. I now use Global Truss ST-132s. They are rock solid, have a 7'+ leg span, and go to 13' if necessary. Weight capacity is 250 lbs and while I still am unlikely to trust that number at full height outdoors, it is SOOOO much better than the TS99s.
 
Re: Crank up stands and LOUD powered

Hi Y'all,

Good points on speaker stand weight capacities and heights.

I really like the clutch system on the US TS90, TS99, TS99BL stands, and the compact crank mechanism on the K&M 213.

I run TS99Bs with sandbags all the way up with 42# boxes. The 150# rating may be realistic with the stand all the way down.
K&M 213s handle 110#, go to 7'2" and are nice if they can go up on a tall stage.
Higher an heavier I have AE L-11s.

The TS99B weighs 10#, 213 18#, L-11 48#, ST-132 55#.

Anybody know of a stand that will safely go up around 10' with a 65# load, that is lighter than the L-11??
The OnStageStands LS-SS7770 looks like a possibility - 10' height, under 20#.
No clutch or crank, just knobs adjusters.

Thanks and good health, Weogo


TJ Cornish said:
i agree completely. My previous system was 100lbs, and though well within the spec for the TS99s, I was never comfortable. I now use Global Truss ST-132s. They are rock solid, have a 7'+ leg span, and go to 13' if necessary. Weight capacity is 250 lbs and while I still am unlikely to trust that number at full height outdoors, it is SOOOO much better than the TS99s.
Click to expand...
 
Re: Crank up stands and LOUD powered

Weogo Reed said:
Hi Y'all,


Anybody know of a stand that will safely go up around 10' with a 65# load, that is lighter than the L-11??
The OnStageStands LS-SS7770 looks like a possibility - 10' height, under 20#.
No clutch or crank, just knobs adjusters.

Thanks and good health, Weogo
Click to expand...

Hi Weogo,
I've used the LS-SS7770 for years now. It's pretty solid. I put Fulcrum's DX1295 box (63 pounds) up to 8 feet and it seems fine. Although they call it 10' I think it's more like 9'6". I've been too nervous to go any higher than 8', but who knows, it might be ok.

Thanks Mark, Rob, and TJ for the comments on weight.

Although the max db spec on the TT5a is impressive, It's still just a single 15" for the low end. I'm starting to wonder if DX1295's might actually get louder, since the 12"s work together, and the max program wattage is 1500.

Marjan - I'd say full range down to at least 120 hz.

Grant
 
Its not the height you want but it should be noted that the bottom tube of the ts99 is longer than most other tripod type stands so I do a lot of shows in lower ceiling rooms without really extending the top tube.
 
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