to get the .frd and .zma files from an image and accurately it is better to free every intruder in the drawing.
clean the curve well and then import it into the tools.
I discovered that to do this and faster there is - FPGraphTracer - in this case the woofer is 8 ohm, but to adjust it to 16 ohm, we will mediate an adequate Re and the extractor, in addition to manual changes, should give me the best impedance at 16 ohm.
everything starts from here, delete all the graphs that I posted previously, I was not myself! 😀
clean the curve well and then import it into the tools.
I discovered that to do this and faster there is - FPGraphTracer - in this case the woofer is 8 ohm, but to adjust it to 16 ohm, we will mediate an adequate Re and the extractor, in addition to manual changes, should give me the best impedance at 16 ohm.
everything starts from here, delete all the graphs that I posted previously, I was not myself! 😀
simulation with the parameters of the finished crossover, already listened to and corrected several times.
after this simulation it is possible to think:
a) you are no longer able to understand if a speaker sounds good
b) go for the turtle race.
after this simulation it is possible to think:
a) you are no longer able to understand if a speaker sounds good
b) go for the turtle race.
Start simple.
On the woofer.
2mH coil......just like a first order filter.
Add to that a notch tuned around 5k.
That's a cap, a coil, and a resistor. Trial and error will get you the precise values needed, but for a start, try .5mH, 5uf, and 1 ohm. These are in series with each other, and then placed in parallel with the woofer terminals.
On the woofer.
2mH coil......just like a first order filter.
Add to that a notch tuned around 5k.
That's a cap, a coil, and a resistor. Trial and error will get you the precise values needed, but for a start, try .5mH, 5uf, and 1 ohm. These are in series with each other, and then placed in parallel with the woofer terminals.
eh dear Temp, I started out simple and I even tried it in several tests and it didn't sound good - this mid-woofer has a lot of voice, a lot of mid-highs and for this reason it became a more complex 18db woofer, 12db tweeter and with Zobel on both drivers.
this was one of the first attempts - 1.9 coil, but when listening it was not balanced - too much voice and also too much tweeter.
keep in mind that I was listening with a LS 3/5a at 15ohm on the left
and this I put it on the right
what you see of crossover is one of those that when listening came closest to the sound of the LS 3/5a
this was one of the first attempts - 1.9 coil, but when listening it was not balanced - too much voice and also too much tweeter.
keep in mind that I was listening with a LS 3/5a at 15ohm on the left
and this I put it on the right
what you see of crossover is one of those that when listening came closest to the sound of the LS 3/5a
First, those new peaks near the upper end of a driver's output indicates your Zobels aren't right yet. See my example charts here.
To answer your question about off-axis charts, I set my crossover point by looking at the 30 degree chart, but I then make my crossover simulations based on the on-axis response.
I wrote about this with pictures and an explanation.
To answer your question about off-axis charts, I set my crossover point by looking at the 30 degree chart, but I then make my crossover simulations based on the on-axis response.
I wrote about this with pictures and an explanation.
So, you're unwilling to try a suggestion even in a sim? The response in post #59 looks like almost half the Peerless drivers I've worked with.
I can't really tell what's going on anymore with random plots, impedances, and maybe circuits? My general suggestion would be to start with values near a textbook configuration and modify more modestly as needed to achieve a target curve. This should keep you closer to safe values that don't have odd or highly resonant behavior.
I didn't check the tweeter leg or other circuit elements to see if they have similar issues.
The big high Q peak on the woofer branch definitely gets my attention. Your L2 value is very far from what a normal 18 dB/octave crossover would be at 16 ohms (something around 0.6 mH would be more typical assuming a 2 kHz cross point) and your resultant acoustic slope looks to be greater than 36 dB/octave. C2 is doing very little, so I would remove that as well, but I'm one that's typically trying to simplify. Maybe you came at these issues thinking more complexity was fixing problems or you used components you had on hand, but I'm not sure you landed in a good spot given what your recent plot shows. Without real measurements, it's all a bit of a guess, but circuits that are far from suggested values are dicier.
I didn't check the tweeter leg or other circuit elements to see if they have similar issues.
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it's very likely, because I don't have the real data of the driver yet. as with all of these drivers.
no, i'm doing several tests - with several approaches. i'll do many of them and i'll do this one too, as others suggested. first i need to get as close as possible to the data of these drivers. that curve you're talking about is from the Kef B110 sp1057 - used for the Kef Reference 104/2, different from the B110 sp1003.
Assuming you got your answer, and now know how to start Xsim, you should let this thread fade into oblivion. Otherwise, in the future, someone new to Xsim might come across this thread, and waste time reading it when there is nothing for them to see here.