How would I go about trying to match this response curve?

[GollyJer]

I have this tested response curve (from the manufacturer) for my mains:


How would I go about setting up the REW chart setting to potentially match the graph? The scale is obvious, but would I simply keep turning up the volume on the AVR until the flatline is 85hz? 85hz is the level used when testing a studio environment correct?

[DrWho]

The actual amplitude doesn't really matter, but if you really really want things to line up, just turn up the volume until it reads 85dB.

There is no standard SPL for measuring the acoustical performance of a studio.

[GollyJer]

Cool. That's pretty much what I thought. Thanks Mike.

[JohnM]

Bear in mind that was probably measured 1m from the speaker and probably in an anechoic chamber, you will find it difficult to create a similar environment for your measurement so the effects of your room on the response will make it look very different.

[GollyJer]

I'll definitely keep that in mind John.
P.S. - Is there an article in this forum regarding full spectrum equalizing? I thought I read one but now I can't find it.

[mswlogo]

You'll never match that graph. It was probably measured with very expensive calibrated equipment in an anechoic chamber.

You should look at your room independent of this graph.

[brucek]

If you plan on equalizing at higher frequencies, you certainly want to use filters with very low Q so they have a broad effect. Narrow bandwidth equalizing above about 200Hz is a not recommended. REW is designed to suggest filters to reduce modal peaks. This limits you to <~200Hz. Above that a manual method is used for broad bandwidths.

brucek

[GollyJer]

mswlogo wrote:

You'll never match that graph. It was probably measured with very expensive calibrated equipment in an anechoic chamber.
You should look at your room independent of this graph.

I get that. I'm more looking at this for after I'm done EQ'ing my sub and then viewing the graph extended to 20,000Hz.

brucek wrote:

If you plan on equalizing at higher frequencies, you certainly want to use filters with very low Q so they have a broad effect. Narrow bandwidth equalizing above about 200Hz is a not recommended. REW is designed to suggest filters to reduce modal peaks. This limits you to <~200Hz. Above that a manual method is used for broad bandwidths.

I'm not sure I plan on EQ'ing at higher frequencies, just trying to understand my room and speakers as best I can.

Thanks for the responses guys.

[JohnM]

Here's one article on full range EQ of the nearfield response of a speaker: http://www.sencore.com/newsletter/July07/EQadjustment.pdf