ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 2 [All]   Go Down

Author Topic: SRX812P pole mount issue  (Read 632 times)

Ray Soly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 160
SRX812P pole mount issue
« on: January 19, 2019, 12:26:55 pm »

I was called in a small venue where we did a PA design/install several years ago to see if we could solve an issue with some extra pole mounts speaker systems they purchased recently. They now have several pairs of SRX812P/SRX 818sp subs, (these are usually rented out) mounting on the subs is done with Gator id sub poles (gas piston)...it fits nicely with the threaded end (M20) on the sub but the 812 is quite unstable on the top end, it does not fit neatly actually leans quite a bit to the side with the "straight" mounting hole and try as they might they can't get them to stay straight and keep the directional angle, they just pivot as if the hole is too large (it actually flares out at the bottom of the 812) it also rattles  ..other speakers usually have a screw of some type to tighten the speaker to the pole but these don't...Any tricks/suggestions ? in this case the cheaper the better as they don't have a technical crew,  it's usually operated by volonteers or on a "bring your own crew "format.....simple would be nice too.

thx

Ray
« Last Edit: January 20, 2019, 05:24:13 pm by Ray Soly »
Logged

Kemper Watson

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 436
Re: SRX812P pole mount issue
« Reply #1 on: January 19, 2019, 12:51:42 pm »

We have several pairs of SRX812P/SRX 818sp subs, mounting on the subs is done with Gator id sub poles (gas piston)...it fits nicely with the threaded end on the sub but the 812 is quite unstable on the top end, it does not fit neatly actually leans quite a bit to the side with the "straight" mounting hole and try as we might we can't get them to stay straight and keep the directional angle they just pivot as if the hole is too large for the pole which also rattles at the pole/cabinet junction ..other speakers usually have a screw of some type to tighten the speaker to the pole but these don't...Any tricks/suggestions ?

thx

Ray

A pair of these work really well.


https://produkte.k-m.de/en/Speakerlighting-and-monitor-stands-and-holders/Accessories-for-speaker-stands/21441-Adapter-sleeve-Ring-Lock-black

Or you can do away with the adaptor.


https://produkte.k-m.de/en/Speakerlighting-and-monitor-stands-and-holders/Distance-and-extension-rods/21340-Distance-rod-with-hand-crank-and-Ring-Lock-black
« Last Edit: January 19, 2019, 12:54:19 pm by Kemper Watson »
Logged

Tim McCulloch

  • SR Forums
  • Hero Member
  • *
  • Offline Offline
  • Posts: 19625
  • Wichita, Kansas USA
Re: SRX812P pole mount issue
« Reply #2 on: January 19, 2019, 01:03:58 pm »

Wooden toothpicks used as wedges between pole and cup.  Extra goodness if you can find the "World's Fair" brand of tapered, square toothpicks.

EDIT ps - the Worlds Fair toothpicks are now collectors items, it seems.  There are other square picks with tapered, rounded points.  Forster, the "World's Fair" maker is still in business and make what looks like the same item without the WF name.  Diamond makes a similar pick, too.
« Last Edit: January 19, 2019, 01:39:34 pm by Tim McCulloch »
Logged
"Practicing an art, no matter how well or badly, is a way to make your soul grow, for heaven's sake. Sing in the shower. Dance to the radio. Tell stories. Write a poem to a friend, even a lousy poem. Do it as well as you possible can. You will get an enormous reward. You will have created something."  - Kurt Vonnegut

Debbie Dunkley

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4413
  • Central North Carolina
Re: SRX812P pole mount issue
« Reply #3 on: January 19, 2019, 01:19:23 pm »

I try to use my tilters that Dave Garoutte makes even if I don't need the angle because they fit so nicely and tighten every thing up.
However, if I am not using them, as I mentioned in another thread, I use my home made shims.
I take large empty plastic containers like vinegar or milk containers and I cut them up into pieces 1" x 3". The curve of the bottle makes them perfect to slot between the pole and the outer edge of the cup leaving a small piece exposed to pull out at the end of the night.
I place them at the back so the speaker tilts slightly down at the front and they cannot be seen. I keep a little baggie of them in my kit and because I lose one or two of them along the way, every 6 months or so I make more - free and effective.
Logged
A young child says to his mother, "Mom, when I grow up I'm going to be a musician." She replies, "Well honey, you know you can't do both."

Steve Garris

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1199
Re: SRX812P pole mount issue
« Reply #4 on: January 19, 2019, 01:56:48 pm »

A pair of these work really well.


https://produkte.k-m.de/en/Speakerlighting-and-monitor-stands-and-holders/Accessories-for-speaker-stands/21441-Adapter-sleeve-Ring-Lock-black

Or you can do away with the adaptor.


https://produkte.k-m.de/en/Speakerlighting-and-monitor-stands-and-holders/Distance-and-extension-rods/21340-Distance-rod-with-hand-crank-and-Ring-Lock-black

The top K&M clamp-on unit will eventually dent you poles from the set screw.

The second link is what I would do if you require crank stands. I have the K&M poles that don't have the crank, and they are excellent for my heavy SRX815p tops.

I've messed around with shims with limited success. The expanding mandrel type from K&M works really well. I wish more speaker poles would address this issue.
Logged

Ray Soly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 160
Re: SRX812P pole mount issue
« Reply #5 on: January 19, 2019, 02:46:41 pm »

thanks all for the suggestions, we tried shims and tape also =not great...anyone tried these? k&M

Ray
Logged

Debbie Dunkley

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4413
  • Central North Carolina
Re: SRX812P pole mount issue
« Reply #6 on: January 19, 2019, 02:48:53 pm »

The top K&M clamp-on unit will eventually dent you poles from the set screw.

The second link is what I would do if you require crank stands. I have the K&M poles that don't have the crank, and they are excellent for my heavy SRX815p tops.

I've messed around with shims with limited success. The expanding mandrel type from K&M works really well. I wish more speaker poles would address this issue.

This is the main reason I stopped using my K&M tilters. They mess up stands so bad - I tried using gaffer tape to stop the damage but it didn't really work well. In the end I didn't tighten them at all to avoid damage but this didn't hold them in place. This is where Nimrod and Dave's tilters are very kind to speaker poles.
I find the home made shims work great and take 2 seconds to install.
Logged
A young child says to his mother, "Mom, when I grow up I'm going to be a musician." She replies, "Well honey, you know you can't do both."

Debbie Dunkley

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4413
  • Central North Carolina
Re: SRX812P pole mount issue
« Reply #7 on: January 19, 2019, 02:51:16 pm »

thanks all for the suggestions, we tried shims and tape also =not great...anyone tried these? k&M

Ray

YES these do work well but you can't get them tight enough. I find the plastic ones work better than the metal ones for this though.
adaptor

Just to clarify - I use these on my lighting stands to better marry 1-1/2" T clamps to 1-3/8" poles.
« Last Edit: January 19, 2019, 02:53:21 pm by Debbie Dunkley »
Logged
A young child says to his mother, "Mom, when I grow up I'm going to be a musician." She replies, "Well honey, you know you can't do both."

Ray Soly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 160
Re: SRX812P pole mount issue
« Reply #8 on: January 19, 2019, 04:35:33 pm »

YES these do work well but you can't get them tight enough. I find the plastic ones work better than the metal ones for this though.
adaptor

Just to clarify - I use these on my lighting stands to better marry 1-1/2" T clamps to 1-3/8" poles.

ahhh, ok thanks Debbie, so plastic then  :K&M plastic

Ray
Logged

Mike Pyle

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 883
  • Santa Rosa, CA
Re: SRX812P pole mount issue
« Reply #9 on: January 20, 2019, 03:33:42 am »

ahhh, ok thanks Debbie, so plastic then  :K&M plastic

Ray

That sleeve won't work. 38 mm is nearly 1.5" diameter. I have used these little K&M rubber rings before, and keep some in stock. For quite a while they were out and I thought discontinued, but I see them again on the current product list.

K&M 85890
Logged
Mike Pyle  Audiopyle Sound  707-315-6204
Dealer For: JBL, Soundcraft, Crown, dbx, AKG, Yorkville, EV, QSC, RCF, FBT, Danley Sound Labs, Tannoy, Lab Gruppen, Powersoft, VTC, EAW, Allen & Heath, Ashly, APB, Denon, Rane, Audix, One Systems, OnPoint Audio, Presonus, K&M, Ultimate, Global Truss, Road Ready, SKB, Gator, Radial Engineering, Turbosound, Midas, dB Technologies, American DJ, Odyssey, ProCo, Rapco, CBI, Elation, Mipro, Chauvet, Blizzard, Shure, Whirlwind, BenQ, Bassboss, Yamaha, Line 6, Behringer, Whirlwind, On-Stage, more...

Ray Soly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 160
Re: SRX812P pole mount issue
« Reply #10 on: January 20, 2019, 11:59:18 am »

That sleeve won't work. 38 mm is nearly 1.5" diameter. I have used these little K&M rubber rings before, and keep some in stock. For quite a while they were out and I thought discontinued, but I see them again on the current product list.

K&M 85890

So i'm confused, Debbie says the metal ones work but plastic ones are better and Mike says they won't work. The K&M ring seems awfully flimsy, doesn't seem like they will last more than a couple of uses??!! also quite expensive for what they are...

thanks

Ray
Logged

Robert Lunceford

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 310
Re: SRX812P pole mount issue
« Reply #11 on: January 20, 2019, 12:21:48 pm »

The K&M with the expanding mandrel is what Iíve been using for the past few years. The great thing about the expanding mandrel is that it also contracts, making it very easy to remove the speaker back off the stand. Yes it does put a small dent in the stand when you tighten the set screw, but so what?
Logged

Steve Garris

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1199
Re: SRX812P pole mount issue
« Reply #12 on: January 20, 2019, 03:05:38 pm »

So i'm confused, Debbie says the metal ones work but plastic ones are better and Mike says they won't work. The K&M ring seems awfully flimsy, doesn't seem like they will last more than a couple of uses??!! also quite expensive for what they are...

thanks

Ray

The spec's on the 812p state the pole cup is 35 mm. Those adapters are 38 mm which is more typical of a lighting T-Bar (but not all).

I just might try that K&M ring - didn't know it existed!
Logged

Jay Marr

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 509
Re: SRX812P pole mount issue
« Reply #13 on: January 20, 2019, 03:41:42 pm »

When I had a sloppy fit as noted in the OP, I used black business cards to tighten up the fit.
Gives the option of adding more to one side so that you can make up for any tilt that may be happening.
Always worked like a charm.
Logged

Debbie Dunkley

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4413
  • Central North Carolina
Re: SRX812P pole mount issue
« Reply #14 on: January 20, 2019, 05:04:54 pm »

With size tolerances varying so greatly on some of the stuff made in China, getting the right size to fit when it comes to such small measurements can sometimes be tough.
My point was that the K&M plastic version in my experience is the thinnest one I have found of this type and I have used them successfully on some of my speaker poles when speaker wobble is bad. They might not fit so well if the speaker pole cup is a tighter fit but they do work depending on size of cup and size of pole.  I cut my K&M's up one side and removed a thin piece all the way up and it allows for a really nice snug fit on most of my speaker stands and speakers. YMMV.
These days in instances where the wobble just needs a slight helping hand, I either use my tilters or I use my trusty shims.
Logged
A young child says to his mother, "Mom, when I grow up I'm going to be a musician." She replies, "Well honey, you know you can't do both."

Mike Pyle

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 883
  • Santa Rosa, CA
Re: SRX812P pole mount issue
« Reply #15 on: January 20, 2019, 05:20:00 pm »

So i'm confused, Debbie says the metal ones work but plastic ones are better and Mike says they won't work. The K&M ring seems awfully flimsy, doesn't seem like they will last more than a couple of uses??!! also quite expensive for what they are...

I don't use them frequently but have had a pair on some poles for about 15 years. Cost is $5 a pair + shipping. If, like me, you don't like the idea of paying more to ship something than the amount it costs, I'd suggest that you buy something else that costs more and add these to the order.
Logged
Mike Pyle  Audiopyle Sound  707-315-6204
Dealer For: JBL, Soundcraft, Crown, dbx, AKG, Yorkville, EV, QSC, RCF, FBT, Danley Sound Labs, Tannoy, Lab Gruppen, Powersoft, VTC, EAW, Allen & Heath, Ashly, APB, Denon, Rane, Audix, One Systems, OnPoint Audio, Presonus, K&M, Ultimate, Global Truss, Road Ready, SKB, Gator, Radial Engineering, Turbosound, Midas, dB Technologies, American DJ, Odyssey, ProCo, Rapco, CBI, Elation, Mipro, Chauvet, Blizzard, Shure, Whirlwind, BenQ, Bassboss, Yamaha, Line 6, Behringer, Whirlwind, On-Stage, more...

Ray Soly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 160
Re: SRX812P pole mount issue
« Reply #16 on: January 20, 2019, 05:42:45 pm »

With size tolerances varying so greatly on some of the stuff made in China, getting the right size to fit when it comes to such small measurements can sometimes be tough.
My point was that the K&M plastic version in my experience is the thinnest one I have found of this type and I have used them successfully on some of my speaker poles when speaker wobble is bad. They might not fit so well if the speaker pole cup is a tighter fit but they do work depending on size of cup and size of pole.  I cut my K&M's up one side and removed a thin piece all the way up and it allows for a really nice snug fit on most of my speaker stands and speakers. YMMV.
These days in instances where the wobble just needs a slight helping hand, I either use my tilters or I use my trusty shims.

Thanks Debbie,

I don't use them frequently but have had a pair on some poles for about 15 years. Cost is $5 a pair + shipping. If, like me, you don't like the idea of paying more to ship something than the amount it costs, I'd suggest that you buy something else that costs more and add these to the order.

from Audiopyle perhaps? :-)...

Thanks I might suggest the rings as a first fix.....and also get some plastic K&M tubes Debbie suggested included in the order...


Ray
Logged
Pages: 1 2 [All]   Go Up
 


Page created in 0.072 seconds with 20 queries.