8 ohm tweets on 4 ohm crossover?

[profoundwill 10+ year member]

What will happen, as far as power and crossover settings?? Thanks!!

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[FoxPro5 5,000+ posts]

1/2 power and the tweet will be crossed over at which ever freq the passive is set at.

 

[wilzyx 5,000+ posts]

wouldnt the 8 ohm speaker be crossed at half of what a 4 ohm speaker would be crossed at?

 

[tRiGgEr 5,000+ posts]

Power will be whatever your amp produces @ 8ohms. And the X-over settings will be fugged up

 

[FoxPro5 5,000+ posts]

Power will be whatever your amp produces @ 8ohms. And the X-over settings will be fugged up

How?

 

[joetama 5,000+ posts]

If you have an 8 ohm load crossed over at 1kHz ur cap value would be 19.89 uF, while if you keep the same cap and switch the speaker to 4 ohms the cross over freq would be 2kHz.

 

[FoxPro5 5,000+ posts]

If you have an 8 ohm load crossed over at 1kHz ur cap value would be 19.89 uF, while if you keep the same cap and switch the speaker to 4 ohms the cross over freq would be 2kHz.

Thank you.

 

[joetama 5,000+ posts]

Is it a two-way cross over? Meaning does it have mid outs and are you using them and what load are your mids?

 

[profoundwill 10+ year member]

Yes it is a two way corssover, and I will be using 4 ohm mids. What if I ran two tweets bridged to get a 4 ohm load. Would that help?

 

[wilzyx 5,000+ posts]

then you would lost stereo sound and it wouldnt sound good

 

[joetama 5,000+ posts]

Well, running the 4 ohms with the 8 ohms since power is exponential you would get about 1/4 of the power to the 8 ohm tweets, that would help you to get a balanced load in terms of the circuitry but you might end up getting too much tweeter then. How many watts are you planning on running because if it isn't too much a resistor bridge in the system would prolly be the best way to go, however if you are running a lot of wattage it wouldn't work because you would just blow up the resistors.

 

[helotaxi 5,000+ posts]

The crossover would end up as a multistep. The cap would work at one freq and the coil at another. I had a setup like this a long time ago when I didn't know any better. My saving grace at that time was that the tweeter could handle a much lower crossover point than what the crossovers I was using were designed for. That and I was only running a tiny bit of power.