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In Reply to: RE: Studio monitor volume controls rotation posted by John Elison on July 02, 2012 at 09:19:13
Hey John, in the sense that the OP is asking about "flat", he's not referring to a frequency response curve. Rather, he's referring to no gain and no attenuation imparted by the control's circuit - i.e., "flat". It may sometimes be called "zero", but there's a lot of equipment where zero simply means EITHER no gain, OR, no attenuation.
OP, not being familiar with the particular product, but taking an educated guess, I'd say that "flat" using a +4 scale and pro equipment is where it indicates "+4", and "flat" using a -10 scale and consumer equipment is where it indicates "-10". Of course, the output characteristics of the source will affect where "flat" actually is, and where the best position is on the control - some sources run a little hot, others a little low.
And yes, all the variations on measuring and spec'ing levels can be quite confusing unless you've been steeped in them for years, which most audio folks, including me, haven't! I would say that the folks who can readily equate one to another, and easily move from one to another, and interface both are: audio electronics design engineers, studio techs, professional equipment repair techs, broadcast engineers, and not many other people!
:)
In any case, I'm mystified as to why the OP doesn't look at the manual or contact Yamaha.
Follow Ups:
Well, a potentiometer attenuates and only attenuates. Therefore, "flat," meaning no attenuation, would be the -10-dB setting regardless if whether you are balanced or unbalanced. There is no such thing as a no-gain position because the potentiometer has absolutely nothing to do with gain. The speaker has built-in amplifiers with fixed gains that never change regardless of the position of the potentiometer. The potentiometer is basically out of the circuit when set to -10-dB in the sense that it passes the incoming signal without attenuation. At any other position, the potentiometer attenuates the incoming signal.
Best regards,
John Elison
I haven't seen the schematics of these particular speakers but I'd bet my bottom dollar that those pots are connected to an active input gain stage.
"Hey John, in the sense that the OP is asking about "flat", he's not referring to a frequency response curve."So, we agree on that, right? You didn't mention that aspect of your previous post, nor in my reply, in this post. Obfuscating? ;)
"Rather, he's referring to no gain and no attenuation imparted by the control's circuit - i.e., "flat"."
I should have included "based on the signal level 'standard'" being referenced, but I thought the discussion had already established that. +4 is one, -10 is another.
JE: "The speaker has built-in amplifiers with fixed gains that never change regardless of the position of the potentiometer."
As I noted in my previous post, I'm not familiar with that particular product. However, I'd guess that it doesn't have a variable gain amplifier, but rather, the control is simply a pot.
I'm still puzzled about why the OP doesn't ask Yamaha or read the manual?
In any case, none of this has to do with EQ settings, but rather, signal level references, right? ;)
btw, the speakers with the combo mid and tweet, that's cool! I'll have to take a listen to them online sometime. :)
Edits: 07/02/12
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