Hello. Is it possible to make a BBC dip adjuster and shelving adjuster for the high range. Like Tannoy have? My ears are very sensitive in the 2000Hz range. And I now use Shiit Loki equalizer. I tilt down 2000Hz about 3dB and shelves the up from 6000Hz about 1-2dB.
Is it possible to do this in the crossover?
Is it possible to do this in the crossover?
What happens if I increase the tweeters resistor from 3,3 ohm to 4-5ohm? Does it only affect the low treble? What frequences does the parallell 3,3uF cap let thru? Sorry for my english🤪
I'm sorry, but when you change a crossover it isn't only the frequency respose that changes. Phase, impedance, directivity - all change. The "need" you describe is best filled by DSP. EQ like the Loki is a very blunt tool. If you listen to digital; get something that inserts a PEQ in the digital domain and tweak to your hearts (ears?) content; someting like the WIIM may be just what the doctor ordered.
Hello and thanks for answer. I listen to vinyl,cd and streaming(Tidal)
The result with the minor eq adjustment was a sucess,sounds very good now.
I am very sensitive in this frequencies,my ears are 52years and worked in noisy enviroment as a car mechanic.
So the little eq adjustment was heaven sent😀
The result with the minor eq adjustment was a sucess,sounds very good now.
I am very sensitive in this frequencies,my ears are 52years and worked in noisy enviroment as a car mechanic.
So the little eq adjustment was heaven sent😀
Good. I suggest a better EQ. A parametric equalizer, like that found in the Wiim products (amongs others), will make the changes you seek easier.
Making those changes to the crossover is a pretty significant undertaking. You'd need to know the crossover points of the existing crossovers, as well as the impedance curves of the drivers, then you'd also need to know how to build the network you want. Simply adding a resistor to the tweeter will attenuate it's output somewhat, but will also change the crossover point and slope that was intended, and very possibly lower the crossover frequency to the point of causing distortion in the tweeter, and putting it at risk. It could be done, but would require some expertise and research and/or good measuring equipment, and a lot of work with no guarantee of a good outcome..
Changing speakers would be a lot simpler, but defeats the DIY aspect. Some form of parametric EQ also would make more sense to me.
Changing speakers would be a lot simpler, but defeats the DIY aspect. Some form of parametric EQ also would make more sense to me.
If I were in your position I'd make a curve describing the tilt/shelf combination. Post it here and keep it to use as a target.
Can you get some kind of simulation happening?
Can you get some kind of simulation happening?
Hey. I know that changing components in crossover would make large changes. I'm thinking of minor adjustment, increase in the resistor value I mentioned would not blow up tweeter. I think it will lower the low treble. Am I right?
Asking again; Would it only lower the low treble if I increase resistor value :3,3ohm to 5-7ohm? I think the parallell cap 3,3uF cap does what it should over a freq anyway. Am I right? If I lowered the resistor value the tweeters would be pushed harder against their crossover freq. Mirage says 2KHz
If it were me, I'd first try disconnecting the 3.3uF capacitor since this is tilting the treble up.
Getting back to the resistor, if you're OK with discussing it in a general sense the resistor in parallel with that capacitor may have an effect on the middle of the tweeter response. This is because the capacitor lets the upper treble through, and the resistance potentially reduces damping on the high pass filter at the left of the tweeter section.
Increasing the resistance would lower this treble. It would also change the frequency of interaction with the capacitor, except that when combined with the change in level, the upper treble is less likely to change overall.
Increasing the resistance may also cause the lower treble region to remain closer to where it is due to the filter damping.
Getting back to the resistor, if you're OK with discussing it in a general sense the resistor in parallel with that capacitor may have an effect on the middle of the tweeter response. This is because the capacitor lets the upper treble through, and the resistance potentially reduces damping on the high pass filter at the left of the tweeter section.
Increasing the resistance would lower this treble. It would also change the frequency of interaction with the capacitor, except that when combined with the change in level, the upper treble is less likely to change overall.
Increasing the resistance may also cause the lower treble region to remain closer to where it is due to the filter damping.
Yes it will. If that's the case then disconnecting the 3.3uF capacitor should tell you whether it is too much change or not enough 😉
All this is good to try. Yes, it is tricky to guess without some measurement or simulation but you may get lucky.
Since these kinds of changes are important, I wouldn't think it is the right time to get mixed up in trying to find 'better' parts.
All this is good to try. Yes, it is tricky to guess without some measurement or simulation but you may get lucky.
Since these kinds of changes are important, I wouldn't think it is the right time to get mixed up in trying to find 'better' parts.
Yes,I agree . Better caps would be the final edition if so. But this is maybe just daydreaming,the Mirage plays extremly well now with the little eq tuning. Maybe I should be happy with that😎😏 Anyway,I learned a lot from you,thanks😀👍
Eh eh eh I was thinking of suggesting a replacement for the 2 x 10 μF caps on the midrange, but it isn't the place...
Yes,I have those in mind. If so they must be put outside the print. Bipolar caps are a no-no in crossover I have heard
No, they are not a no-no!
Also, there might be that 50 y old caps do still sound good..but that doesn't guarantee that at 51 years they'll be fine...
Also, there might be that 50 y old caps do still sound good..but that doesn't guarantee that at 51 years they'll be fine...