In jonhall's first post he posed a question, can he
build a 3 split. In answering his question I figured I would elaborate on other ways within the industry, of accomplishing the same result. It is presented in my first post to the thread.
He then asks a question regarding "unwanted
gain staging". I conclude two things. ONE- he must be talking about CH1
level affecting the CH2 "output" and vice versa, TWO- (no disrespect to you jonhall) He is lacking knowledge of the industry and that the information given to him should be in a non-confusing manner.
In post number 4, I outright answer his direct question. Knowing he needs the correct information and that I use QSC amps, I wanted to be sure of my "
daisy chain" answer with direct application to the MT2400. I download the
manual and discover that the MT2400 amp is not like any of my QSC amps.
At this
point CHANNEL 2 on any of the amps, is removed from the equation.
The omly mistake here was that I stated, "The only
XLR you would use..." I should have correctly stated, "The INPUT
XLR you would use..."
Chris, you then come in on post 6, " Directly paralleling XLRs on an input
stage is not a normal practice, there would normally be a buffer
etc."
My response was, "The way I read it, he wants to split ONE signal source to his three amps within the rack. A splitter is just fine for that. No buffer needed. The same can be accomplished by utilizing both the
XLR and 1/4" "input" connections on the amp."
The next post, #8, got my attention. "But using M-M link leads between amps means something funky is going on with that amp and it isn't buffering it's inputs - it's paralleling them which is not a sound design principle..."
Chris, I then in answer to your statements and responses. Knowing full well that jonhall might very well be reading and getting concerned and or confused, I copied a
page from the
manual and posted it.
Crown themselves state that this is an acceptable way of connecting signal from one amp to another.
I then elaborated more. In an effort to keep things
clear for jonhall, I used the example of the "rack of ten". Then by use of hyperbole, I expressed, for jonhall, that it did not matter how many amps you wanted to do this with.
Regarding the signal path opening up by way of the amp exploding, again hyperbole. How many of us have actually had a catastrophic failure in which the amps case actually exploded. Yes I have had and they will make some pretty wicked sounds at the
point of failure. But I have never seen one in it's proper use actually "explode". At far as the solder connection, well I use QSC for a reason. QUALITY.
Crown is a good name, not knocking them, just don't use that many of their products.
In post 10 you state that I have contradicted myself. Sir, respectfully, go back and read post 4.
I will let
Brad's post speak for itself. Researched, concise and accurate.
Chris in post 12 you go back AGAIN and state,
"My concern all along has not been using a provided loop output or with daisy chaining within normal circumstances - within a rack and with a reasonable number of outputs. I would be looking at a DA if distance were involved. My concern was with the comment that got tossed in earlier about using the panel female of
channel 2 while in parallel mode and connecting an XLRM - XLRM
jumper lead, reproduced here:
Quote:
Example:
Here I am assuming that you are operating these in "parallel
mono"
Main input to amp 1
XLR channel 1. Connect a MALE
XLR from the
XLR "input"
jack on
channel 2. Connect this to the
channel 1
XLR input on amp 2. Which will also be a MALE
XLR.
Connect a MALE
XLR to amp 2
channel 2 "input" then connect to amp 3
channel 1 with another MALE
XLR.
Again go back and read post 4. You have posted this comment TWICE.
And by the way, It is a sound design for the parallel
switch to actually connect the CH1 and CH2 inputs together. If anybody wishes, you can go study the QSC schematics here:
QSC - Schematics, Amplifiers
I am sure
Crown has a source for schematics also.
For all reading this or on any other board. READ THE ENTIRE THREAD BEFORE COMMENTING.
There is a wealth of knowledge here and I can see many new folks are arriving each day with limited knowledge wanting to learn. I am all about breaking it down for the general layperson to understand. I do not like having to write an epistle to correct a knowledgeable person's lack of reading the thread.
Jonhall, make your cable, use with confidence and have fun!!