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8040s in my Room

gennie8000, modified 11 Years ago.

8040s in my Room

Youngling Posts: 1 Join Date: 6/15/11 Recent Posts
Hey!
I bought the 8040 recently and have a question concerning acoutstics and the Genlecs as they have a rear opening for bass reflex.. The only way for me to positionate the Genelecs is in front of a big window (glass pannel) so in front of a highly reflective surface.. I have absorbers at the early Reflectionpoints at the side walls and the ceiling.. So my questions are:
1. The nearest I can positionate the Genelec on floor stands to the window is 35 cm apart from the glass panel as there is a window sill between.. Putting the speakers on the sill is no option. What distance would you recommend for the Genelecs on the floor stands to the glass panel behind them? My room length is 5,5meter and width 3,6meter

2.As the genelecs have a rear reflex opening, is it better for me to put some porous absorber directly behind the speakers or is it okay to have the hard surface (glass panel) behind them?

3.In case you would recommend absorbers, should i place them directly behind the speakers or should I follow the directions of the reflex opening to a reflextion point because the spakers are turned to the listening postiton?

Thank you.

Regards
Hans
1038, modified 11 Years ago.

Re: 8040s in my Room

Jedi Master Posts: 340 Join Date: 4/6/09 Recent Posts
Hi Hans,

See my notes...

1. The nearest I can positionate the Genelec on floor stands to the window is 35 cm apart from the glass panel as there is a window sill between.. Putting the speakers on the sill is no option. What distance would you recommend for the Genelecs on the floor stands to the glass panel behind them? My room length is 5,5meter and width 3,6meter

Are you using a subwoofer? If yes, then you can have the speakers out from the wall/window, but you would want a distance of at least 1.1m from the speaker baffle to the window.

If no sub, then the best location is as close to the wall as practical. If you look at most control room images you will see speakers infront of the glass window into the studio, don't fret the glass too much. Get the speaker at least 1.2 m from the floor and have a listen. You will need to experiment with the bass tilt dip switches, start listening with a -4dB setting


2.As the genelecs have a rear reflex opening, is it better for me to put some porous absorber directly behind the speakers or is it okay to have the hard surface (glass panel) behind them?

The absorber will be better suited to bass trapping or first order reflection duties than being used behind the speaker

3.In case you would recommend absorbers, should i place them directly behind the speakers or should I follow the directions of the reflex opening to a reflextion point because the spakers are turned to the listening postiton?


There are great room measuremnt programs available free to measure your room, checkout REW and have a play.