As a newbie, I’m going to ask something I guess you can solve:
I built a 3 way speakers with passive crossover and now I’m planning a new 3 way system.
I started to work in a passive crossover, but maybe I can change to an active one.
I know there are some good equipments like miniDsp, but im planning a “fixed” active crossover with Operational Amps and fixed slopes and crossover frequencies, but I really don’t know if those kinds of crossovers will work with “real” speakers
The question is: Will the active crossover with OP Amps correct the slopes and resonance points and make the curves be as ideal as the are shown by their designers?
The other question is about the components: in the passive filters we have to choose good MKP capacitors that are not used in the active designs. Wil it work good?
I’m wondering about this kind of crossover:
Linkwitz-Riley Electronic Crossover
thank you everybody
I built a 3 way speakers with passive crossover and now I’m planning a new 3 way system.
I started to work in a passive crossover, but maybe I can change to an active one.
I know there are some good equipments like miniDsp, but im planning a “fixed” active crossover with Operational Amps and fixed slopes and crossover frequencies, but I really don’t know if those kinds of crossovers will work with “real” speakers
The question is: Will the active crossover with OP Amps correct the slopes and resonance points and make the curves be as ideal as the are shown by their designers?
The other question is about the components: in the passive filters we have to choose good MKP capacitors that are not used in the active designs. Wil it work good?
I’m wondering about this kind of crossover:
Linkwitz-Riley Electronic Crossover
thank you everybody
With the system you are proposing the points are very simple.
Active will allow you to avoid having to correct/work against varying driver impedances.
Active will allow you to not worry about non-standard inductor and capacitor values.
Active will require more amplifier channels (possibly higher cost).
Active may need thump protection in your tweeter amplifier.
Neither active or passive will allow you to "correct the slopes and resonance points and make the curves be as ideal as the are shown by their designers" without proper thought to the acoustic design.
Active will allow you to avoid having to correct/work against varying driver impedances.
Active will allow you to not worry about non-standard inductor and capacitor values.
Active will require more amplifier channels (possibly higher cost).
Active may need thump protection in your tweeter amplifier.
Neither active or passive will allow you to "correct the slopes and resonance points and make the curves be as ideal as the are shown by their designers" without proper thought to the acoustic design.
Thank you for your answer.
More amplifier channels is not a problem right now, the problem is how to correct the resonance points and slopes.
Now I'm about to measure the drivers in the cabinets, and with the frequency/response graph I was planning to calculate the passive filter.
I know how to calculate the crossover points for a 12dB slope active filter, but I don't know how to correct the resonance points or whatever could be necessary to do.
That's the question: what should I do to calculate a good active crossover?
thank you
More amplifier channels is not a problem right now, the problem is how to correct the resonance points and slopes.
Now I'm about to measure the drivers in the cabinets, and with the frequency/response graph I was planning to calculate the passive filter.
I know how to calculate the crossover points for a 12dB slope active filter, but I don't know how to correct the resonance points or whatever could be necessary to do.
That's the question: what should I do to calculate a good active crossover?
thank you
Ok, maybe I have to ask simpler questions:
An active filter will let me correct resonance points?
If you mean you want to null a peak at the midrange or tweeter driver resonance, yes it is possible, but this is not usually done.
Instead, the crossover point is set high enough that the driver resonance is well below any significant energy input to the driver.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.