I guess the SBA xover needs a parallel notch filter 35Hz 17dBs.
For Re 8 ohms
R 48.6 ohms
C 966.71 uF
L 21.39 mH
For Re 5.6 ohms
R 34 ohms
C 966.71 uF
L 21.39 mH
Wich one or I have to try both?
I guess the PNF have to be placed between the LPF & the driver?
For Re 8 ohms
R 48.6 ohms
C 966.71 uF
L 21.39 mH
For Re 5.6 ohms
R 34 ohms
C 966.71 uF
L 21.39 mH
Wich one or I have to try both?
I guess the PNF have to be placed between the LPF & the driver?
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If you want to experiment with Room Correction, go active...
And if you don't want to waste endless hours of our valuable time, please stop using the poisonous textbook formulas from the bloody calculator website you have wrongly been directed!
If you need to make sophisticated eqs with your passive filters, you must learn to make good measurements and use a cad tool!
Am i lying if i say that you have choosen C=28uF and L=3.6mH for the Hipass on the SS because you have used a calculator for a 12db butterworth at 500Hz assuming an 8 ohms impedance ?
What if at 500Hz the SS impedance is not 8 ohms but let's say closer to Re, 6 ohms?
Do you know how a LR low pass sum with a Butt Hipass?
Is your Low Pass still LR 12 at 500hz after you have added the f... BSC affair?
What kind of miracle do you expect of all these improvisations?
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Really you see at 500Hz the SS impedance is not 8 ohms but let's say closer to Re, 6 ohms?
I see aprox. 7.2 ohms at 500Hz
I see aprox. 7.2 ohms at 500Hz
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It seems that the HP you have sticked to your SS interacts badly with the low pass already present in it, so that your Hi-Pass is plain wrong, resonating around 1khz, too steep, and crossing with the SBA around -12dbs instead of -6dbs, hence a big deep regardless of the drivers polarities.
As said before, all these tweaks only work in active.
As said before, all these tweaks only work in active.
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Really you see at 500Hz the SS impedance is not 8 ohms but let's say closer to Re, 6 ohms?
I see aprox. 7.2 ohms at 500Hz
Yes Re is 5.5, but you don't need the datasheet, what you need is measure the impedance curve of your SS monitor because it is clear that all these guesses you have done and all the guesses i am now doing to try to debug what you have done are a loss of time.
Maybe, but your Hipass is not alone and will have to fight the 0.8mh inductor on its low pass...
Sigue dando palos de ciego 'toy cansao...😉
I am curious, what's the schematic of impedance jig that would give you 30 ohms range for an 8 ohm speaker unit. I'll clean the dust off of my ancient and not that great quality creative 128 sound card and try ARTA to see where it gets me. In a few days, I hope.
Post 91 deleted bad measurement, attached correct one SS impdance in green, 10 ohms resistor in yellow. Impedance measurement in box.
N.B. I'm using VAIO internal soundcard for Limp measurements.
N.B. I'm using VAIO internal soundcard for Limp measurements.
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Merlin, though based on an Usher 8945A impedance curve instead of your SS, maybe these value work for your Hipass.
But these are only electrical transference functions as i do not have the FR data, only impedance curves, so cannot guarantee anything.
But these are only electrical transference functions as i do not have the FR data, only impedance curves, so cannot guarantee anything.
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Biutiful...😀
Can you please upload an image of the corresponding impulse instead of the frequency response?
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So the bump 500-1000hz is not due to the Hipass... So what's causing this?
If we check the impulse ...
If we check the impulse ...
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