My active subwoofer (Behinger Eurolive B1500D-Pro) has been broken for a while, whereby it distorts and rattles when played at anything above a very quiet volume.
I've now taken the driver out of it's enclosure and have tested it with a hifi amplifier, and it seems to still distort and produce a poor quality sound. At this point I understand it is very likely that the driver is broken, rather than the built in amp, however as I am very new to speaker repair I am anxious that I may have done something incorrect. Is there any way that I can test the amplifier to confirm that it is working fine before I splash some money on a replacement driver. I've heard that it is possible to connect the amplifier to another speaker, but I am concerned that this would perhaps blow the speaker.
On a side note, do I need the exact same driver model as a replacement, or would it be possible to buy a different model/brand that will still fit into the enclosure and work ok with the amp? (I ask this as a direct replacement is hard to find and expensive, especially considering shipping to the UK - x77-00000-03607 - Google Search)
Thanks in advance for your help.
I've now taken the driver out of it's enclosure and have tested it with a hifi amplifier, and it seems to still distort and produce a poor quality sound. At this point I understand it is very likely that the driver is broken, rather than the built in amp, however as I am very new to speaker repair I am anxious that I may have done something incorrect. Is there any way that I can test the amplifier to confirm that it is working fine before I splash some money on a replacement driver. I've heard that it is possible to connect the amplifier to another speaker, but I am concerned that this would perhaps blow the speaker.
On a side note, do I need the exact same driver model as a replacement, or would it be possible to buy a different model/brand that will still fit into the enclosure and work ok with the amp? (I ask this as a direct replacement is hard to find and expensive, especially considering shipping to the UK - x77-00000-03607 - Google Search)
Thanks in advance for your help.
A couple of things you can try.
The speaker cone should move freely if you gently and evenly press on it. If you can feel it rubbing or scraping then the speaker is faulty.
You can connect the amp to another speaker as you suggest. It would be worth you first of all connecting the original speaker back to the amp and then checking there is no DC voltage present across the speaker terminals.
A lowish value fuse in series with the test speaker will provide basic protection for the speaker should the amplifier do anything damaging. Try a 1 amp quick blow first.
A different speaker will probably give slightly different audible results although any speaker of the correct impedance would be electrically OK. You just have to try it and see.
The speaker cone should move freely if you gently and evenly press on it. If you can feel it rubbing or scraping then the speaker is faulty.
You can connect the amp to another speaker as you suggest. It would be worth you first of all connecting the original speaker back to the amp and then checking there is no DC voltage present across the speaker terminals.
A lowish value fuse in series with the test speaker will provide basic protection for the speaker should the amplifier do anything damaging. Try a 1 amp quick blow first.
A different speaker will probably give slightly different audible results although any speaker of the correct impedance would be electrically OK. You just have to try it and see.
As long as you keep the volume low, no damage will occur.
Have a look here for a replacement chassis or a re cone kit.
All Products
Have a look here for a replacement chassis or a re cone kit.
All Products
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