Meyer 700 HP Cardioid Settings, if you have them.

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Kip Conner

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Mar 13, 2011
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Athens, GA
I'm totally cheating on this one… Doing a quick set-up for a show with a rental PA and wanted to know if anyone happen to have the delay time and gain compensation for a 3 stack cardioid 700HP set-up. I know how to do it, but just aren't going to have the time with the tight schedule to do it with Smaart.

Hoping that someone already has the delay times and gain adjustments written down somewhere. There's a neighborhood behind the stage and they sure would appreciate me not killing them with low end from the system.

The stacks will be in a free field with no physical obstructions so if anyone has a Galileo handy with their settings I would super grateful to you!
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Kip Conner said:
I'm totally cheating on this one… Doing a quick set-up for a show with a rental PA and wanted to know if anyone happen to have the delay time and gain compensation for a 3 stack cardioid 700HP set-up. I know how to do it, but just aren't going to have the time with the tight schedule to do it with Smaart.

Hoping that someone already has the delay times and gain adjustments written down somewhere. There's a neighborhood behind the stage and they sure would appreciate me not killing them with low end from the system.

The stacks will be in a free field with no physical obstructions so if anyone has a Galileo handy with their settings I would super grateful to you!
Click to expand...
Why would those be any different than any other sub-in terms of placement and delay?

It is jsut a front loaded 2x18". So whatever you have used in the past with other products should work just fine.

Unless there is something I am missing.
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Nope, Ivan you're spot on- as long as the drivers are the same the delay propagation will transfer in theory. All of my subs are single 18" boxes and just don't own any doubles that I can pull data.

Thanks everyone!
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Kip Conner said:
Nope, Ivan you're spot on- as long as the drivers are the same the delay propagation will transfer in theory. All of my subs are single 18" boxes and just don't own any doubles that I can pull data.

Thanks everyone!
Click to expand...

It doesn't matter whether they are single or double drivers. Wavelength is wavelength so the spacing and delay will remain the same-no matter if you are using a single 8" or a quad 21".

What WILL change is you determining over what freq you want maximum rejection. You do not get it at all freq. So YOU have to determine is it more important to have kickdrum freq (60ish Hz) or lower bass 35-40Hzish?

That will depend on the style of music-how the system will be ran (freq response wise) and so forth.

But the math stays the same.

Determine your main freq of interest-find the 1/4 wavelength-space the cabinets for that and use that amount of delay.

Now whether you use a end fire (best sound but less rejection) or cardioid (less impactful sound but greater rejection) is up to you-but the delay and spacing remains the same.
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Maybe my "Mappviewer"-tool will help you, as it contains a simple "generator" for (sub)arrays. Result is a mapp-file as a starting point for own tweakings. It does not contain level offset at the moment.
http://www.trbtr.de/pmw/pmwiki.php/Software/MAPPViewer

Unfortunately with current firefox versions it is a little bit hard to run the application after install - I'm working on that.
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Kip,

If you've got settings from a similarly sized single 18" then they will probably be close enough, there's good wiggle room there. Just make sure they're ones you aligned by eye with Smaart, doing the raw math doesn't take into account the time it takes the energy to travel around the outside of the cabinet, which often nearly doubles the delay indicated by the straight line math.
 
Re: Meyer 700 HP Cardioid Settings, if you have them.

Hey Guys,
as Bennett has pointed out the size and shape of the enclosure influences where the "acoustic center" is, its not where you think it is!
If we are using offset delays between acoustic centers of enclosures you need to know where they are.
A typical 2 x 18" enclosure has the acoustic center outside the enclosure by as much as half a meter :)
try AES 7992 "The Low-Frequency Acoustic center:..." John Vanderkooy May 2010

cheers
ferrit
 
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