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Dunlavy SC-IV bass problem

Hello,

please help that I bought a Dunlavy SC-IV speaker. But, I found the bass of the speaker is not enough. It seems missing some range. I am sure that the speaker driver (Vifa) is work well.

Can someone explain bass problem of Dunlavy SC -IV and teach how to modify it to new version(to use scan speak woofer driver)?

Thank you.
oxfordjack

Showing 2 responses by audiokinesis

audiokinesis
2,772 posts
 
Don't change woofers unless you are prepared to redesign the crossover.

If you really want more bass, I suggest having the woofers' T/S parameters measured to see if it's feasible to port the cabinets. Otherwise, woofers that give you "more bass" in a sealed box will also be lower in efficiency, necessitating a significant crossover modification to restore correct balance between the woofer and the other drivers.

The easier solution is... get a sub and use it to gently augment the low bass region.

Duke
dealer/manufacturer
audiokinesis
2,772 posts
 
You can check the polarity of the wiring on the woofers with a battery.

Connect the + battery terminal to the + speaker input, and the - battery terminal to the - speaker input. The crossover will send the DC voltage from the battery to the woofers, so your mids and tweeters will be safe. Both woofer cones should jump forward. Check this on both speakers.
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