[Ed VB]

Hi All

I have a few questions on room treatment that will help in this situation.

I have a good SPL Analyzer and leveled all my speakers and trims through my Oppo 105 using the Analog 7.1 outs.

I ran some test tones and this is what I got.
Hz          SPL
1K =     84.0 Db
200 =   91.6 Db
160 =   91.5 Db
125 =   88.0 Db
100 =   84.3Db
80 =    78.6 Db
63 =    84.0 Db
50 =    74.2Db
40 =    85.1 Db
31.5 = 81.1 Db
25 =    83.9 Db
20 =    85.4 Db

Here is the room and the mesurement was from my chair in a reclined position with the Mic straight up at ear level.

Can anyone help me on this and how bad do you think the response is?

[bpape]

Looks like a total of 17db swing. We'd like to get to 10 if at all possible but may not be able to given orientation and restrictions.  Worst offender is 50Hz followed by 80Hz.  80 if the xover may be just a phase issue.  50 hard to say given the asymmetric setup and room shape.  I would play with sub position to try to blend that a bit better.  Regardless the decay time will be a bit long as should be addressed.  Corner behind speakers and behind you are likely best options as well as the peak of the ceiling.

Bryan

[cheap-Jack]

Hi All

I have a few questions on room treatment that will help in this situation.

I have a good SPL Analyzer and leveled all my speakers and trims through my Oppo 105 using the Analog 7.1 outs.

I ran some test tones and this is what I got.
Hz          SPL
1K =     84.0 Db
200 =   91.6 Db
160 =   91.5 Db
125 =   88.0 Db
100 =   84.3Db
80 =    78.6 Db
63 =    84.0 Db
50 =    74.2Db
40 =    85.1 Db
31.5 = 81.1 Db
25 =    83.9 Db
20 =    85.4 Db

Here is the room and the mesurement was from my chair in a reclined position with the Mic straight up at ear level.

Can anyone help me on this and how bad do you think the response is?

Putting aside the SPL spectrum measurement result, you have committed a very common acoutical booboo -
you put the large coffee table in the critical path of the music soundwaves.

There are so much space available to place the coffee table, why put it right in between the loudspeakers & yr sweet spot????????? An acoutical disaster!

Take my words for it, take the coffee table out & remeasure it. See if you will get more linear result.
I am interested to see the HF part of the SPL spectrum as well.

c-J

[Ed VB]

Thanks guys.

I will do some measurements tomorrow and see what will change. My sub crossover is at 80 Hz so I will be able to work on that one. The top end was pretty good but I will post those too.