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 1 
 on: Today at 06:17:47 pm 
Started by channelaudio - Last post by David Sturzenbecher
If you aren't against building your own...

https://soundforums.net/forum/low-earth-orbit/diy-audio/11601-new-diy-mid-high


Sent from my iPhone using Tapatalk Pro

 2 
 on: Today at 06:04:54 pm 
Started by channelaudio - Last post by channelaudio
Hello all, and happy holidays!

Lately, I've been working mostly corporate parties and weddings. Typically the crowd size I supply sound for is around 250-450 people. The rooms range from 60'x40' up to 100'x65'.

Currently, my go-to rig for this size gig consists of Nexo GEO S8 & CD1s powered with NXAMP 4x4, but I'd like to build a smaller and more powerful Speaker on Stick rig.  I'd like something compact with the most punch. Subs would be needed.

So what would your most ideal Speaker On Stick rig be to cover these gigs if cost is not an issue?

I am open to either Active or Passive.

 3 
 on: Today at 05:59:07 pm 
Started by Dennis Wiggins - Last post by Chris Grimshaw
Could this be as it is near the 80Hz "kick" in a kick drum (I've read that here) and the high pass for mics?

-Dennis

Kick drums put out a wide range of frequencies, varying with drum head tuning, mic position, port dimensions, etc etc.
70Hz is somewhere near the middle of the range a sub this size is likely to cover. 100Hz crossover at the top end, probably flat to 50Hz before falling off...

Chris

 4 
 on: Today at 05:46:38 pm 
Started by Dennis Wiggins - Last post by Dennis Wiggins
70 Hz.

Could this be as it is near the 80Hz "kick" in a kick drum (I've read that here) and the high pass for mics?

-Dennis

 5 
 on: Today at 05:46:10 pm 
Started by Lee Douglas - Last post by Dan Mortensen
Thanks for that.  I was so concerned about cluttering up the other thread with my lack of knowledge on the subject, I presumed that link was specifically and only addressing the battery anomaly that was the subject of the thread.

Hi Lee,

FWIW I don't think you would have cluttered up the thread due to your lack of knowledge, because I don't know anything either and am asking questions to try to learn.

 6 
 on: Today at 05:37:23 pm 
Started by Bob Leonard - Last post by Chris Hindle
It takes powerful medication to erase those memories.  :-X
Ya, no shit.
And yet, every year "we" regale the world with the same stories....  :o

Again.....

Chris.

 7 
 on: Today at 05:36:51 pm 
Started by Tim McCulloch - Last post by Dan Mortensen
Results are in for phase 1. It's too bad this forum software does not allow intermingling of photos and comments.

What should be the first pic in sequence (DSC_0796) shows a table of the results.

Full charge is 5 bars, and with no audio passing through the mics at any time (quiet shop), it took over 4 hours for any of the mics to get to 4 bars, and 16-18 hours to get to full discharge.

The mic in the ferrous bread pan was consistently the first to reach the next lower level, and the aluminum foil one was consistently next, with the free air mic lasting longest at each level. It's interesting that the final shutoff time difference between the aluminum and free air ones were not as far apart at final discharge as they were at every step in between.

There's a few more pictures below showing pictures of the video camera monitors showing:

--0785: state of the screen at 9h 44m, with the battery levels of each mic, their frequencies, and where they were physically located;

--0790: at 15h 36m (the camera starts a new file after 12h recording) showing the low battery symbol on the Ferrous and Aluminum tray mics. It was surprising that there was still another hour or so of transmission on 0 bars.

--0792: the RF signal meters just before the Ferrous batteries die.

--0793 same just after they died.

I've decided not to post this on Youtube as it would rival Andy Warhol's 24 hour movie of the Empire State Building for boringness, and am going to delete the hard drives for the cameras to start the next phase.

That will be measuring life in each condition with sound going through each mic. I'll put two little speakers near the mic heads, one at the free standing mic and one just above and in front of the two adjacent ferrous/aluminum trays, and create a level that lights up the LED ladders on the displays. I'm thinking I'll swap the Free mic with the Ferrous mic to see if any of the life disparity is due to individual mic. I'll add a layer of aluminum foil to see if that makes any difference to the same mic.

And FYI rather than loading these files onto a computer at USB 2.0 speeds for editing and viewing, I just watched on the cameras' screens and fast forwarded using using their internal clocks to show time, which are visible in the pictures.

If anyone take me to court the only saved documents will be the photos posted here and the spreadsheet with further results.

So far, I think James, that guy, and RF Venue are right.

 8 
 on: Today at 04:31:23 pm 
Started by Dennis Wiggins - Last post by Keith Broughton
Not originally, but the Meyer folks did see Ted's modified boxes and were impressed with how "factory"it looked.
Didn't know that, John.
Learn something every day :)

 9 
 on: Today at 04:29:42 pm 
Started by Lee Douglas - Last post by Keith Broughton
I did my own testing with 6 transmitters within about 10' of the receiver antennas and watched the receivers that were turned on but did not have a transmitter associated with them.
Watched as the RF showing meters on the open receivers dropped away to nothing as the transmitters were put in the trays.
As others have found out, it really works to reduce intermod problems with multiple transmitters in a relatively close space.
2 major mistakes I see all the time are...
1-transmitters on a table too close to receive antennas
2-transmitters that are lined up in a row on a table. (use the pans Luke...)

 10 
 on: Today at 04:24:10 pm 
Started by Lee Douglas - Last post by Lee Douglas
Thanks for that.  I was so concerned about cluttering up the other thread with my lack of knowledge on the subject, I presumed that link was specifically and only addressing the battery anomaly that was the subject of the thread.

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