Has anyone able to detect any significant differences in using electrolytic caps in the bass xover in a 3way design? The xover will be a 10mh inductor then 68uf electrolytic to ground. I plan to bypass it with a good 1uf cap. The money saving will be significant. A 65uf electrolytic cap is less than $2 vs much more for a MKP cap with the same value.
When it exploded , I sniffed some significant evidence !!
But it was a tiny 6.8 µF/ 50 VL ...Bipolar of course !
You can try also regular non-bipolar Electrolytics put in anti-phase series ( +--+ ) ,but in this case you need to find 140 µF values ..
No need for any bypassing , in that position ( and task ) .
But it was a tiny 6.8 µF/ 50 VL ...Bipolar of course !
You can try also regular non-bipolar Electrolytics put in anti-phase series ( +--+ ) ,but in this case you need to find 140 µF values ..
No need for any bypassing , in that position ( and task ) .
Yes there is a little difference when you use a big coil. The sound seems a little more clean. The film capacitor 68uF does a little better.
But high end electrolytic capacitor exists too
But high end electrolytic capacitor exists too
Distortion from a woofer is typically > 1%.
Combine that with room modes and the ear's relatively poor sensitivity/discrimination in that frequency range and I think it's the one area where I think a good bipolar electrolytic (and ferrite core inductor) are acceptable.
Combine that with room modes and the ear's relatively poor sensitivity/discrimination in that frequency range and I think it's the one area where I think a good bipolar electrolytic (and ferrite core inductor) are acceptable.
Use electrolytic caps with the highest voltage rating you can find 100 V is probably OK; 35V probably isn't.
I no longer bother with the bypass caps as the reactance time of different types of cap is different may have an effect/affect on the sound.
Rather than use a single large cap of the correct or nearest standard value I try and use multiples of the same value in your case #3 * 22uF may work out cheaper and 66uF is probably close enough
I no longer bother with the bypass caps as the reactance time of different types of cap is different may have an effect/affect on the sound.
Rather than use a single large cap of the correct or nearest standard value I try and use multiples of the same value in your case #3 * 22uF may work out cheaper and 66uF is probably close enough
Yeah, that seems like a good compromise -- use a few in parallel.
Thanks for the all the responses.
One issue is that the stated value on the capacitor's jacket and the actual value probably will not match very well. Some can be as much as 20% off.
The second issue is that electrolytic caps change value over time, which will screw up the crossover. So even measuring them now doesn't mean they will be anything like what you expect later on.
The second issue is that electrolytic caps change value over time, which will screw up the crossover. So even measuring them now doesn't mean they will be anything like what you expect later on.
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