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 21 
 on: Today at 07:44:27 pm 
Started by Eric Armstrong - Last post by Eric Armstrong
3 xti 2002 amps for sale. Pulled from a low demand install. Asking 450 per plus shipping. Ill take offers if you're purchasing all 3. Thanks!

 22 
 on: Today at 07:32:15 pm 
Started by jesseweiss - Last post by Jay Marr
Very interesting.  I don't have the XR18, but a friend of mine does, and he had a very similar problem last week.
He said he all of a sudden lost a couple channels on his XR18.  He didn't tell me which channel numbers, but he just pulled the cable and put into another channel and it was fine.  He had input signal.  I told him to check the routing, etc.
Was there a recent firmware upgrade to the XR series?

If you're looking to replace, I love the X32 features (I have 3 of them).
I would love to try a Ui24, but really need true Xover filters for me to abandon the X32.

 23 
 on: Today at 07:19:27 pm 
Started by Brian Strachan - Last post by Brian Strachan
What skills outside of EDM/audio do you have?  I ask because the "maker movement" is very strong (and I'd be surprised if there wasn't a workshop group or two in the Austin area) and having skills you can barter is a respected thing.  Maker-spaces usually have well equipped shops in woodworking, metals, industrial sewing, 3D printing, laser/plasma/water cutting tools.  The primary restriction is not doing commercial production but building some subs for yourself is probably okay.  You'll have to join up, pay membership and hourly shop fees, etc but having a nice shop and meeting some good, helpful people is well worth it.

I would call myself a man of many trades. I can (and have done) do just about anything I set my mind to from rebuilding an engine to mixing sound. I wasn't aware of maker shops, but that might certainly be something I can look into.

My next grievance with home built subs is rider issues. While that's not an issue for me yet, I think it will be in the foreseeable future. That's part of the reason I had been trying to keep my eyes peeled for some Danley subs. Home built would certainly help me reduce cost though. Sounds like I need to do some more personal research.

 24 
 on: Today at 07:14:35 pm 
Started by Mal Brown - Last post by Mal Brown
Mal, have you selected the lights? That truss setup will look very cool. I'd look for very lightweight led pars to be fixed in the truss, and mount your movers separately due to the overall weight. Look forward to seeing a pic of this rig.

I have 22 9x10 RGBW watt color mixers from MonoPrice.  This will be the fourth season on them.   The lights are pretty light construction.  I’ve done a few repairs.  Also a couple of 30 watt movers from them which are OK.   I’m adding in some 60 watt movers from Marq. 

12” Triangle truss.  Ordered the stands and base plates from Mike Pyle.

Trying for the quickest deployment but safest transport.   

My inclination is to build a couple of fixture specific crates or the led pars and some additional for the movers.  Deploy and strike per show. 

One question is,  If I do that, what is the best clamp out there supporting ‘quick’ deploy and quick strike.

Now I need to go review some of the materials mentioned above.  If I can figure out how to safely leave the pars attached, that would be awesome.




 25 
 on: Today at 07:11:22 pm 
Started by Douglas R. Allen - Last post by Douglas R. Allen
Not to be overly pedantic and this is confusing, but the two hots you are measuring across are considered the same phase in electrician/power terms... They may be opposite polarity but are from the same phase, in the context of 3 phase power with three different phases that are each spaced 120' apart.

JR


JR; 

Thank you for the correction. I'm hear to learn. I guess I'm looking for the same polarity then?

Douglas R. Allen

 26 
 on: Today at 07:02:37 pm 
Started by jesseweiss - Last post by William Schnake

If we stay with the stage box form factor I'm considering:

Replace XR18 - cheap and easy
Mackie new DL series- 32= more channels
Qu-SB - upgrade features plus expandable
X32 Rack - upgrade features plus expandability

I will go against the grain.  One of our mixers is an X32 Rack that we purchased back in April of 2014.  We have not had any problems with it.  We do only use it about 40 days or so a year.  As I said no problems and I love the flexibility. 

Bill

 27 
 on: Today at 06:57:42 pm 
Started by Douglas R. Allen - Last post by John Roberts {JR}
Thanks for the replies.

Its a very old building. I remember when the stage was moved to where it is now in 1991. Same boxes and in very bad condition. In my area I have seen ranges from 210 to 230 volts when connecting 2 hots of different phases.  My idea again was to not run 120v power from the stage to FOH but still safely use the digital snake/stage box. I've heard its the best practice to have the stage box and FOH desk on the same phase.  I believe my testing shows both outlets to be on the same phase, neutral, and ground.  When I test power in venues I always was looking to avoid any phase, ground problems.  If I saw some voltage between grounds of different boxes I'd avoid using them. Also keeping everything on the same phase if the voltage requirements would work with the available power.  I've seen as high as 4 volts between ground pins in different locations at other venues so I would not use them. I was unsure if this ground voltage (.21 mico volts ) may mean the 2 outlets, FOH and Stage would not be ok to use together as power sources between the digital stage box at stage and the FOH desk.


I've never been a just plug it in and see what happens kind of person. I have seen threads in other chat groups where people have used FOH on one phase and the stage box on stage on another phase with no problems but if I can keep both on the same phase I feel its worth a quick test to see.


Unless I'm missing something ? I'll give it a try this weekend.
Thanks again;
Douglas R. Allen

   
Not to be overly pedantic and this is confusing, but the two hots you are measuring across are considered the same phase in electrician/power terms... They may be opposite polarity but are from the same phase, in the context of 3 phase power with three different phases that are each spaced 120' apart.

JR

 28 
 on: Today at 06:43:17 pm 
Started by Eddy Roswell - Last post by Tim McCulloch
Is there something not so great about those VRX (and others) boxes? They're out of my price range, but I've heard them a couple of times and thought they sounded pretty good. This was a single unit on a pole per side - acoustic music & vocals. Does my cheaper SRX stuff perform better, aside from the different pattern coverage? Just curious...

Think "Christmas tree" horizontal coverage, turned on it's side.  Pink noise and a little walk around is incredibly revealing.  It's the nature of the design and for the most part, any speaker that looks like this will exhibit similar tendencies.

 29 
 on: Today at 06:39:38 pm 
Started by Douglas R. Allen - Last post by Tim McCulloch
Thanks for the replies.

Its a very old building. I remember when the stage was moved to where it is now in 1991. Same boxes and in very bad condition. In my area I have seen ranges from 210 to 230 volts when connecting 2 hots of different phases.  My idea again was to not run 120v power from the stage to FOH but still safely use the digital snake/stage box. I've heard its the best practice to have the stage box and FOH desk on the same phase.  I believe my testing shows both outlets to be on the same phase, neutral, and ground.  When I test power in venues I always was looking to avoid any phase, ground problems.  If I saw some voltage between grounds of different boxes I'd avoid using them. Also keeping everything on the same phase if the voltage requirements would work with the available power.  I've seen as high as 4 volts between ground pins in different locations at other venues so I would not use them. I was unsure if this ground voltage (.21 mico volts ) may mean the 2 outlets, FOH and Stage would not be ok to use together as power sources between the digital stage box at stage and the FOH desk.


I've never been a just plug it in and see what happens kind of person. I have seen threads in other chat groups where people have used FOH on one phase and the stage box on stage on another phase with no problems but if I can keep both on the same phase I feel its worth a quick test to see.


Unless I'm missing something ? I'll give it a try this weekend.
Thanks again;
Douglas R. Allen

   

Small differences between measured voltage on the same phase lines can be attributed to individual circuit loading, the difference in wire run length between the outlets you are measuring from, etc.  I don't see a problem.  Just for fun you can use a clamp-around ammeter to check for current on your CAT snake... I'd be surprised if you find any.  Mike Sokol has written about measuring several Amperes of current on analog snake shields when there are cumulative hot/neutral and grounding failures.

@JR - I was presuming 2 legs of 3 phase, not split phase, but I think you're right after considering the age of the venue or possible existence of high-leg Delta service.

 30 
 on: Today at 06:16:24 pm 
Started by Douglas R. Allen - Last post by Douglas R. Allen
I work quite a bit at a local club. The stage has 4 - wall mounted quad boxes. In each box 1 receptacle is on 1 phase. The other one on another phase. Measuring with my fluke gets me 219 volts between the hot legs.  Across the room there is 2 receptacles available for FOH.

I am using a M32r digital board-Behringer Cat5e snake with correctly bonded shells , and a DL16 stage box.  I've always run power to the mixer and stage box from the same receptacle at the stage.  I've wanted to not run power along with the snake up and over across the room. Eliminate a step if you will.

With the room closed but available to use today I took a long extension cord and plugged it into the normal outlet I use on stage and ran it to FOH. In one FOH receptacle Stage hot to FOH hot yielded 219 volts so they were on a different phase.

In the 2nd outlet Stage Hot to FOH hot gave me phantom readings.  Stage Neutral to FOH Neutral gave me phantom readings.  Stage ground to FOH ground gave me a steady .21 micro volts so there is a little leakage somewhere.  It seems these Stage and FOH pair are on the same phase/circuit.

My question is this.  When I go from Stage Hot to FOH Neutral or Ground I get 122 volts.   When I go from FOH Hot to Stage Neutral or Ground I get a steady 120 volts.  I'm guessing the FOH circuit has more on it or could it be something else?

Any problems with my testing?


Thanks for any information!
Douglas R. Allen

Thanks for the replies.

Its a very old building. I remember when the stage was moved to where it is now in 1991. Same boxes and in very bad condition. In my area I have seen ranges from 210 to 230 volts when connecting 2 hots of different phases.  My idea again was to not run 120v power from the stage to FOH but still safely use the digital snake/stage box. I've heard its the best practice to have the stage box and FOH desk on the same phase.  I believe my testing shows both outlets to be on the same phase, neutral, and ground.  When I test power in venues I always was looking to avoid any phase, ground problems.  If I saw some voltage between grounds of different boxes I'd avoid using them. Also keeping everything on the same phase if the voltage requirements would work with the available power.  I've seen as high as 4 volts between ground pins in different locations at other venues so I would not use them. I was unsure if this ground voltage (.21 mico volts ) may mean the 2 outlets, FOH and Stage would not be ok to use together as power sources between the digital stage box at stage and the FOH desk.


I've never been a just plug it in and see what happens kind of person. I have seen threads in other chat groups where people have used FOH on one phase and the stage box on stage on another phase with no problems but if I can keep both on the same phase I feel its worth a quick test to see.


Unless I'm missing something ? I'll give it a try this weekend.
Thanks again;
Douglas R. Allen

     








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