Control Rooms.....Diffusion/Absorption/Etc........A Question for John Sayers

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ausrock

ausrock

Well-known member
John,

I have just quickly re-read through your tutorials in an attempt to resolve some issues which could be relevant, considering that most of us here are homerecordists (sp), and most likely have limited space and budgets.

Taking into account the need to hear monitors without any "colouration" from the control room's acoustics and your view that "diffusion" is undesirable, is it then fair to presume that you consider a control should be acoustically "dead". If so, providing said control room is symetrical, how important is it's actual size. Or if some reflection is desired how small can a control room be and still be efficiently usable?

Hope I'm making sense here........

ChrisO :cool:
 
It really depands on the size of the control room. In a large control room like Left Bank I used timber at the back for slots and diffusion, Jo Egan's does the same and has a diffuser across the rear wall. I just wouldn't recommend that in a small room cos the rear reflections are tooo short and would cloud the issue if you know what I mean.

cheers
John
 
Thanks John,

The question came to mind as I was weighing up my options here. Also the fact that many of the HR members may not have a lot of space to "create their studios in.
So what you are saying is that having to "compact" the control room is acceptable (although maybe not desirable) so long as there is little or no reflection of sound from the monitors.

If I have interpreted you correctly, I at least have my potential problems controlled for now.

Many thanks.



:cool:
 
One of the really nice sounding rooms I did was one of my first.It was a standard bedroom where we had a full flushmount at one end withJBL 4311s. The ceiling was timber angled over the console in the front and heavy rockwool treatment over the rest and down the back wall. The room sounded really good.

cheers
John
 
So, how do you determine when a room can make use of diffusion? Prior to construction stricly by the size of the room or after by listening (hand clap, measurments etc...) ?

Cheers
Kevin.
 
I feel that the difussor on a rear wall is there mainly for the other people in the room, not so much for the listening position. It allows the highs to remain in the rear of the room as opposed to being absorbed by the rear wall. It scatters the highs around the rear area and scatters any delays coming back to the mixer.

In a small room this is not required IMO

cheers
john
 
John,

JBL 4311 Studio Monitors? I know I'm showing my age and lack of disposable income but I have a pair I bought in 1979 while in the US Navy. I'm using them in my bedroom "studio." They need to be re-coned (the tar has run down the front). I've had them so long I know where they are strong and weak (mostly weak now). Re-coning is only about $50 each but I haven't gotten around to it yet. Is anyone still using these as monitors? Just wondering if they are worth re-coning.

DD
 
i always liked the 4311s, they definitely sound beter flush mounted as they were in this case...but for $50 I'd recone them.

cheers
John
 
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