The term crossover is referencing the frequency ranges and overlaps between these ranges.
#Geekmeter vs monity drivers
The passive crossover job is to send the right Frequency of Audio Signal to the desired driver since the drivers are designed to handle different frequencies. Passive crossovers are the type you have been reading about getting modified on this forum.
Active crossovers are powered electronic crossovers that are usually outside the speaker enclosure. I understand the basic concept of a crossover, making sure the right sound goes to the right speaker, but what happens when you change out those caps and other components?įor a point of reference, what would modded crossovers do for the monitor speakers, 70's 40's and cs2?ĮSR I will give this a shot and I just started down this road one year ago so am pretty new to this also.įirst off there are two types of crossovers, active and then passive. You may find many crossover calculators on-line e.g., at (which offers many resources for DIY speaker building and tweaking). Thus, if a first-order tweeter crossover is used with a crossover frequency of, say, 2000 Hz, the signal reaching the tweeter would be attenuated by 6 dB at 1000 Hz, 12 dB at 500 Hz, 18 dB at 250 Hz, etc. The slope of a first-order crossover is 6 dB per octave. For the tweeter, a high-pass crossover is used (first order: one capacitor in series with one leg of the tweeter) for the woofer, a low-pass crossover is used (first order: one inductor, or "choke" used in series with one leg of the woofer). In a first-order crossover, there is only one component (e.g., either a capacitor or an inductor). They allow high frequencies to pass through unhindered, but block low frequencies. Low ESR is good modern film-type capacitors are much better than the cheap, cheesy nonpolarized electrolytic capacitors commonly used (even today) in many vintage loudspeakers.Ĭapacitors in a first order crossover act as "high-pass" filters.
Interestingly, "ESR" (equivalent series resistance) is a key property of capacitors!
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