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Old 04-16-08, 04:33 AM   #1 (Link)
 
fouiz
Shackster
Alias: cedric
User: #18117
Since: Mar 2008
Posts: 24
fouiz is offline
Full range EQ à la Française


Hi there,
here i intend to post my experiences about full range eq corrections on my system using REW.
I' discovered this great tool a few weeks ago, after trying to get the best from a DEQ24ç6 i recently bought. After some testing and auto eq, i realized that i needed to get more informations about the measures before applying any corrections, informations that the DEQ could not give.
After some surfing on the appropriate forums, i discovered REW, and here i am !
I'm gonna try to explain all the process i'll follow, just to share the adventure.
One more thing : i'm french, and my english is a little bit rusty since school, so my apologies for potentiel inappropriate wording ...!

OK, now for the context :

Dedicated room :
5 meters long, 3,75 meters wide. Ceiling is at 1,9 meter high.
Walls in bricks.
Front 2/3 covered with tense fabric on flannelette. 2 bass traps in the corners (filled with glasswool ? fiberwool ?)
Back 1/3 covered with wood
Tense Fabric on the ceiling
Carpet on the ground.
One couch on the left side
Front wall has a big screen for projection too.
>> I'll try to make a plan and be more precise about this later.

Audio equipment involved :
ECM8000 > M-audio mobilepre > laptop PC > DEQ2496 >optical> Sherbourn PT7000 (preamp) > Outlaw ICBM (Bass manager) > Parasound Halo A23 (amp) > BC Acoustique NIGER + REQ Q200E

Settings :
Using newecm.cal, mic is pointing to the ceiling at my listening position.
M-audio calibrated on channel 1 (left) using MIC input (balanced, phantom off) and line output (unbalanced) - see response curve below - not bad in my opinion.
Checking levels at 75db (with the ECM8000 as the input and a Radioshack analog SPL meter at hand just near the mike) gives a result of -11db for sweep for -18db signal on input

To be continued ...

Attachments
File Type: jpg m-audio mobilepre.jpg (56.7 KB, 149 views)

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