I did that now and got much better results. It is not perfect, but that was expected. I will now continue with the 2nd woofer in the second (left) position.
We are talking about our living room here. We are not always listening from the same position - quite on the contrary. I identified 9 more or less typical listening positions that I then defined as spots to take my measurements.
If you know Denon AVRs, they also take measurements from 9...
Thinking about this I wonder where is the real difference between house and room curve. Both basically "bend" the (theoretical) HiFi ideal of a perfectly flat FR, just for different reasons - ???
With a (truely:redgrin:) flat target the EQ gives me many filters, more than my DSP accepts per (output) channel. I had to reduce the target flatness to 3dB to get the number down to 8 which I can enter into the DSP.
I will make a new series of measurements and compare again.
Thanks a lot, that was the piece of information I had forgotten. Now that I see it (again) I remember that I experimented with house curves long ago, but then concluded that I better target a flat response... and forgot about the house curves:gulp: Until your "reminder" I thought house curve =...
I don't have Klippel test equipment, therefore I can't make comparable measurements. My setup is a Windows laptop running REW, a Focusrite Scarlet 8i6 USB soundcard, an ISEMcon EMX-7150 test microphone and a Technics SE-9021 main amp.
Thank you, John!
The filters produced by REW often puzzled me in other cases, but until yesterday they always turned out to produce a significant improvement of the FR.
I wasn't aware of the possibilty to define my own driver target until now but defined one now. And I manually set the target...
I'm using REW 5.20.13 to measure the in-room frequeny responses of a woofer, at 9 different listening positions in the room. To get a base for REW's EQ to work off, I then first SPL-aligned the 9 curves (as recommended in the manual) and then db averaged it with REW's controls. Next I used the...
Thanks for the review, which was fun to read. And thanks also for the link to its manual.
You wondered what output power the unit supplies with 9 channels driven simultaneously. For this, I suggest to look at the unit's max mains power consumption, which is specified as 750 watts. From this...
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