Hi, Is impedence matching of speakers truly the best way to go? Would it be better to match drivers or can this be taken care of in design of the crossover without bad effects? Does this lead to lower effenciency, Etc. I am still searching for drivers let alone trying to figure out crossovers! Thanks, Brent
Wayne Parham Messages: 18855 Registered: January 2001
Illuminati (33rd Degree)
The crossover needs to be tailored for the load, which is the speaker motor. It's not just advertised impedance, by the way, but rather Re and Le are both significant. In many cases, the mechanical resonance of the motor and it's acoustic environment (horn, reflex, etc.) are important to crossover design too. And the amplifier will transfer power to its load according to its impedance. So these are the things that concern you when choosing drivers of different impedance.
Your amplifier will be driving the woofer at 16 ohms but driving the compression driver at only 8 ohms. The result will be that you will have to increase the amount of padding on the tweeter by 3 db.
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