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3-way speaker impedance confusion ?
I have some drivers gathering dust so i want to make a 3 way speaker, the tweeter is 6 ohm, mid range is 4 ohm and woofer is 8 ohms. I used a calculator to generate a crossover (i will do the math on my own once i have a grasp), but the calculator doesn't show the total ohms? my amp works at either 4 or 8 ohms. How can i work out the total ohms? also what would happen if i bridge the amp with this 3-way speaker?, Here is the generated crossover
4th Order Normal Polarity
2000 Hertz / 250 Hertz
6 Ohm Tweeter / 4 Ohm Mid / 8 Ohm Woofer
2.84 db Bandpass Gain, Spread = 8 : 3 octaves
C1 = 7.08 uF
C2 = 14.04 uF
C3 = 133.43 uF
C4 = 188.51 uF
C5 = 28.25 uF
C6 = 6.29 uF
C7 = 125.75 uF
C8 = 28.45 uF
L1 = 0.3 mH
L2 = 1.34 mH
L3 = 1.26 mH
L4 = 7.2 mH
L5 = 0.59 mH
L6 = 0.28 mH
L7 = 9.55 mH
L8 = 4.81 mH
Some reading links would be much appreciated.
- spacemissingLv 71 month ago
Most manufactured speakers contain drivers
that all have the same nominal impedance.
When their impedances are unequal, calculations ---
and crossover design --- become monumentally difficult.
Full laboratory measurement is the best method,
as it will give an impedance curve rather than just a fixed-frequency value.
A really (really really) well-equipped repair shop may be able to do that for you.
Otherwise, use an amplifier that is well known for handling low-impedance
loads with ease so you don't have to be concerned about it.
- Tony BLv 42 months ago
I can't answer this but I'd suggest you re-post in “Consumer Electronics”, I guess someone there can help.