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 on: Today at 01:15:10 am 
Started by Trevor Jalla - Last post by duane massey
Must have been unbalanced..

 on: Today at 01:06:11 am 
Started by Doga Sagun - Last post by Luke Geis
Not to be mean, or downplay your skills, but if you have to ask those questions, you are in over your head.

The limiter settings will be based on your needs and the intended use. The long and short is that you shouldn't need to worry about limiting unless you know that you will have the system running near the raged edge. The biggest problem is that the limiter in the DR PA 2 will not really save a system from abuse. It is not fast enough, doesn't have RMS and thermal limiting ability. At best it will keep occasional oopsies under wraps, but it is just not powerful enough to truly keep a system from melting if it is abused.

Compression is not exactly a good thing for install systems unless there is rms and thermal limiting involved. Compression is actually a dynamics reducing process. This process actually increases the RMS energy that a PA will dissipate. In other words it makes the problem that you are trying to cure with limiting worse. This is why rms and thermal limiting is ideal. Compression is not used for system security and safety.

Phase / delay are one in the same really. If you don't understand the concept behind phase, then fixing phase related problems is a venture in futility. It really requires software tools that are specialized for that purpose. The problem with even having the software and tools is that you must also be a competent user of those tools. There are caveman ways of sorting out phase issues, but again you still have to have your head wrapped around everything really well.

The best advise is to find the tuning information that is recommended by the manufacturer. They usually have at least a recommended crossover point. The rest of the system design and optimization is based around your needs and the parts that make it.

We can't really give you any settings that will guarantee safety or best performance. That is what you will have to figure out on your own unfortunately. We can only give you an idea of safe starting points. At the moment I don't have enough info in front of me to best advise beyond what I already have. Others I'm sure will chime in with more useful info shortly though.

 on: Today at 12:24:42 am 
Started by Timmy Liland - Last post by Luke Geis
Was just looking at kits and BOM's a bit ago for an AA764 build!!!  Hopefully Santa loves me this year :)

 on: Today at 12:16:12 am 
Started by Helge Dr. Bentsen - Last post by Scott Holtzman
I had never designed a console. i took that information from one of the AES sessions i attend. i think it was Bill Whitlock from Jensan Transformers. he measure consoles voltage. as far as Voltage supply and Shielding of the console. and he find some consoles drop on voltage as you add phantom power use. and some even doesn't provide 48V to begin with.

Yoel Farkas.

To my knowledge Jensen makes audio transformers.  I can't imaging a step down transformer for the phantom on each channel.  As John pointed out we don't design consoles but I have worked on quite a bit of gear over the years and sending high voltage all over the chassis seems like an impractical design.

 on: Yesterday at 11:50:01 pm 
Started by Chris Thorley - Last post by Mac Kerr
Hi chaps,

I've joined a Led Zeppelin tribute band

Please go to your profile and change the "Name" field to your real first and last name as required by the posting rules displayed in the header at the top of the section, and in the Site Rules and Suggestions in the Forum Announcements section, and on the registration page when you registered.


 on: Yesterday at 11:25:06 pm 
Started by Craig Leerman - Last post by Scott Holtzman
Hi all,

Have a happy and safe Thanksgiving and holiday season!


Thanks Craig - Hope you shared it with friends and family.

 on: Yesterday at 10:12:04 pm 
Started by Mark Hannah - Last post by Pete Erskine
After re-reading my OP and the responses, perhaps I should have only posted the two images and then asked...

1) Why give different devices different "spacing" parameters?  Tolerances of the product?
2) How are the "spacing" parameters taken into consideration when calculating IMD?
3) How do you figure out the "spacing" parameters for devices?

Mr. Mortensen,

I hope you didn't do all that work just for me.  Thank you.

All of these questions can be answered by... it's personal preferences.  Each software writer determines what kind of spacing is appropriate for each intermod...What works best for each piece of equipment.  I am sure there are tests to quantify the numbers but in reality it's up to you.

I tend to adjust the basic spacing depending on what I am coordinating.

After the IM is calculated all spacing is checked to insure that new frequencies stay at least the specified distance away.

In my video I set all the spacing the same between IAS and WWB for the test and the numbers came out vastly different.  There is no one way to calculate IM.  Each works well within the parameters of it's program.

 on: Yesterday at 09:54:39 pm 
Started by Jerry George - Last post by Ray Aberle
Can anyone help :-\

No, sorry.

Welcome to the ProSound Forums! You will find a large resource of experience and information here ready to be tapped. However, before *anyone* can assist you, your Display Name does need to be your Real, Full Name. Would you kindly pop back into your Profile and update your Display Name to reflect your Real, Full Name? Once you do, we can address your situation!



 on: Yesterday at 09:21:54 pm 
Started by Timmy Liland - Last post by Bob Leonard
You are correct that the AC30 is not a true class A amp. It is at certain operating points, but in typical use will be running in a class A/B standard.

The high cut is a neat idea really. It just feeds a signal between the polarity inverted sends from the phase splitter tube to the output tubes. The CMR of that signal between the plate signals will null and hence a high cut is created. It is sort of the same idea as a presence circuit. In either case cancellation is used as the base for the circuit.

I'm looking to build a Princeton or Champ based circuit next. Fender cleans just slay.

That's Steve Hurts Princeton Reverb on the top of the Twin Reverb going through final testing. He also bought the 1965 Super Reverb on the floor to the left. He's spoiled.

 on: Yesterday at 09:13:26 pm 
Started by Craig Leerman - Last post by Bob Leonard
And right back at you Craig, and all of the PSW world.

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