I have a pair of small PA speakers with one 4 ohm 100 watt 8 inch speaker
and a 8 ohm piezo horn 120 watt.7"x3".
Can i wire this setup ?If so what resistor or capacitor do i need to use to
protect the horn ?
Also if i get a crossover unit for 4 to 16 ohm,how would i go about wiring it up,if possible.(YLY-2088 400W Adjustable 2 way
crossover filters 2 unit audio speaker frequency divider full range treble bass)
regards
Andrew
and a 8 ohm piezo horn 120 watt.7"x3".
Can i wire this setup ?If so what resistor or capacitor do i need to use to
protect the horn ?
Also if i get a crossover unit for 4 to 16 ohm,how would i go about wiring it up,if possible.(YLY-2088 400W Adjustable 2 way
crossover filters 2 unit audio speaker frequency divider full range treble bass)
regards
Andrew
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It is normal to fit a resistor in series with the piezo horn, nominally 22R 1W.
No crossover is required so wire as per your diagramme.
No crossover is required so wire as per your diagramme.
Andomando
Replace that piezo with a tweeter or compression driver, You will love the sound difference. You will indeed need a 12dBb crossover at least... and some padding perhaps.
Replace that piezo with a tweeter or compression driver, You will love the sound difference. You will indeed need a 12dBb crossover at least... and some padding perhaps.
Better protection would be a 2.2 uf capacitor in series and a 20 ohm resistor in parallel. It makes a rudimentary first order crossover which actually takes some of the bass signal out of the tweeter. If you use a pre-made “8 ohm” crossover with a piezo, you need an 8 or 10 ohm resistor in parallel with the piezo to make it act like a normal voice coil driver.
Just the resistor alone protects the amplifier from the capacitive load, which could cause oscillation and destroy the tweeter. If you use the RC filter, the cap has enough ESR to prevent oscillation if you use an electrolytic. Don’t waste an expensive film cap on a piezo.
Just the resistor alone protects the amplifier from the capacitive load, which could cause oscillation and destroy the tweeter. If you use the RC filter, the cap has enough ESR to prevent oscillation if you use an electrolytic. Don’t waste an expensive film cap on a piezo.
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