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20th February 2009
| #1 |
| Lives for gear  Joined: Feb 2009 Location: Brasil
Posts: 613
Thread Starter | Rear wall RFZ
Hi! I work in a small/tiny room (11,5 X 9,5 X 8,6),used primarilly for mixing. There are 18 traps , some broadband (L/R and ceiling RFZ and center of rear wall)and some covered with cardboard (all in the corners and side walls except RFZ). 6 in the rear wall (including wall/ceiling). The measured response (REW) is good. Some issues in the mids, that I´m treating (overall +/-8 db) , and +/-5 in the 50/350hz region. My question is a about the RFZ on rear wall (my distance from the wall is 6,5'): the entire wall needs to absorb highs or the traps directly beside the center could be only "bass traps" (I´m planning, if possible, covering w/ cardboard, which works very well to others I have. Floor is carpeted, and every m³ of "liveness" is welcome... Thanks! |
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20th February 2009
| #2 |
| Gear Guru  Joined: Oct 2002 Location: New Milford, CT, USA
Posts: 12,334
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A wall close behind you needs to be fully absorbent in the middle area behind your head. The outer four corners can be corner bass traps. --Ethan
__________________ Ethan's audio book is now available! |
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20th February 2009
| #3 |
| Gear Guru  Joined: Jul 2005 Location: Atlanta, GA
Posts: 12,007
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Juat to add you will want to use thick panels in the middle. 6" if possible
__________________ Glenn Kuras GIK Acoustics USA GIK Acoustics Europe 770 986 2789 (USA) +44 (0) 20 7558 8976 (UK) See the NEW Scopus Tuned Trap  |
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20th February 2009
| #4 |
| Lives for gear Joined: Feb 2009 Location: Brasil
Posts: 613
Thread Starter | 
Tks, Ethan!  The 2 traps I have in the center of rear wall behind my head (3' x 2,5', strange size, I know) are broadband,but I though the traps directly beside these "center traps" (in the rear wall, not corners)should absorb mids and highs too just for being in the rear wall.Nice to know they are "out" of RFZ. Ciro *sorry for the less than perfect english... |
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20th February 2009
| #5 |
| Lives for gear Joined: Feb 2009 Location: Brasil
Posts: 613
Thread Starter |
Hi Glenn! All 4" panels, but I´ll follow your advice and buy more panels to make these center ones thicker.  Thanks again! Ciro |
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20th February 2009
| #6 | |
| Gear Guru Joined: Jul 2005 Location: Atlanta, GA
Posts: 12,007
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20th February 2009
| #7 |
| Lives for gear Joined: Feb 2009 Location: Brasil
Posts: 613
Thread Starter | 
Tks ... again, Glenn!
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