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Hello, I am working on a 2 way bookshelf speaker and I got the crossover sounding really nice and the freq. response measures flat with in +/- 3db, but the impedance of the tweeter drops to 3 ohms at 2.5-3 kHz. My question is; is that too low? should I be concerned about the amp? Changing the value of the parallel inductor on the tweeter side raises the impedance but at the expense of frequency response. Thoughts? Thanks in advance!
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Re: Speaker Impedance question
Can you show us your crossover? There are a couple of possibilities and having that will make it much easier to help. -
Re: Speaker Impedance question
That indicates that you took the filter Q a bit too high. If the amp is rated for 4 ohms it's OK, as amps are usually configured to work fine to 0.7 times the nominal impedance rating.Originally posted by accustix View PostComment
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Re: Speaker Impedance question
As Bill referenced, it depends on your amp/receiver. If by the speaker terminals it says "6-16 OHM Speakers", your speakers as they are have too low an impedance (maybe) for your amp. It depends on how long and at what frequency(ies) your speaker is 3 ohms. There are commercially sold speakers rated at "8 OHMS" that drop below 3 ohms and 99.9% of all amps and receivers have no problems with them.
All that said, the guru's here can help you "tweak" that to an easier to drive load, probably just by moving a resistor in the HP XO circuit.Comment
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Re: Speaker Impedance question
This is the xover so farComment
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Re: Speaker Impedance question
You could try moving R13 to the beginning (in front of your CO cap)JeffComment
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