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genelec_monitors_in-room_performance

adriantatar, modified 5 Years ago.

genelec_monitors_in-room_performance

Padawan Posts: 29 Join Date: 5/27/14 Recent Posts
http://www.genelec.com/sites/default/fi ... rmance.pdf

I'm happy that it was published this updated document and I have a few questions about it to better understand.
I'll take for eg. my case, M030 volume 75 m3, RT 60 0.23 seconds.
My questions are:
- how it was established the room volume.
- what mean RT 60 0.23 seconds, the recommended reverberation of the room in that will be use to obtain the maximum performance ? If it is so, why as the bass extension increase, is recomanded a higher value of RT 60 ?

How is performance influenced if the values described above are bigger or smaller than that recommended
for a product ?
ilkka-rissanen, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hello,

The room volumes and their respective reverberation values are based on ITU-R BS. 1116-1 recommendation. Please see the complete document here: https://www.itu.int/rec/R-REC-BS.1116/en

They describe the typical professional listening environment for each monitor model. Larger room volume typically always results in larger reverberation time. Typical home audio environments can differ from these recommendations to a large extent.
adriantatar, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Padawan Posts: 29 Join Date: 5/27/14 Recent Posts
An M030 has the critical listening distance at 1,8m. If is used in combination with 7040A will increase the distance ? If yes to what value ?
ilkka-rissanen, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hi,

Subwoofer does not change the critical distance.
adriantatar, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Padawan Posts: 29 Join Date: 5/27/14 Recent Posts
Ok, then if I'll use a bigger room than that is recommended for the M030, eg. 110 m3 like for 1032 I will have the critical distance at ca. 2,4m ?
ilkka-rissanen, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hi,

Please see the formula for approximating the critical distance for given room volume, RT60 value and Q (directivity factor). M030 has a Q value of about 3.5

http://www.bnoack.com/index.html?http&& ... tance.html
adriantatar, modified 5 Years ago.

Re: genelec_monitors_in-room_performance

Padawan Posts: 29 Join Date: 5/27/14 Recent Posts
Thanks