I own a pair of YG acoustic’s Kipod II speakers I bought used. I love them but have had some issues.
I recently noticed (not sure if they were always this way) that one speaker is significantly quieter than the other (some rough spl measurement looks like 10-15db quieter or more. I haven’t tried to isolate it, but I believe this applies to both tweeter and woofer.
I did some trouble shooting, swapping amps, wires, and even drive units and the one speaker is still a lot quieter in all scenarios.
I’m not a technician, but logic is pointing me to the crossover. Problem is, I didn’t think a crossover fault could only affect volume. But the fact remains, something g has happened to one of the crossovers (could be the loud one of the soft one).
Has anyone heard of an issue like this? Are there any tests or measurements I can do to verify the issue?
Thanks in advance for your help and advice.
I recently noticed (not sure if they were always this way) that one speaker is significantly quieter than the other (some rough spl measurement looks like 10-15db quieter or more. I haven’t tried to isolate it, but I believe this applies to both tweeter and woofer.
I did some trouble shooting, swapping amps, wires, and even drive units and the one speaker is still a lot quieter in all scenarios.
I’m not a technician, but logic is pointing me to the crossover. Problem is, I didn’t think a crossover fault could only affect volume. But the fact remains, something g has happened to one of the crossovers (could be the loud one of the soft one).
Has anyone heard of an issue like this? Are there any tests or measurements I can do to verify the issue?
Thanks in advance for your help and advice.
You still have your source channels to swap.
Yes, it could be the crossover. Do you have a way to test components? Maybe there's some visual evidence?
Yes, it could be the crossover. Do you have a way to test components? Maybe there's some visual evidence?
I have mono blocks, so when switching amps I switched source channels as well. I’ve got access to the crossover (mostly without complete disassembly) and don’t see any explosions or obvious corrosion. It’s quite a big unit.
While it could be an open component, it could also be a short. Best to sort this sooner than later.
Resistors and inductors should be measured.
Get yourself a schematic (visually will do) so you can isolate them for testing. Also check the traces and joints, both solder and other kinds.
Resistors and inductors should be measured.
Get yourself a schematic (visually will do) so you can isolate them for testing. Also check the traces and joints, both solder and other kinds.
If they are bi-ampable (not simply bi-wireable) then you could play woofer vs tweeter sections alone to see if bass or treble is missing (unless it is across the board).
With both speakers playing, turn your balance control fully to the defective speaker and start increasing volume so it is about the level the right speaker was playing. Does the speaker now sound the same? can you hear any imbalances or spurious noises? Scraping noises would indicate some voicecoil damage on the woofer. Remember to reduce the volume after the test BEFORE returning the balance to centre.
If the speaker sounds ok at volume,then that indicates crossover component failure as Allen indicated.
If the bass sounded fine in the above test but treble was weak, it may simply be a burnt out resistor or failing capacitor in the tweeter circuit. Sometimes all you need is a visual inspection (bulging caps, literally burnt out resistors). Post some photos of the crossover.
Ideally an LCR meter would be used to test individual components after a visual doesn't find anything obvious (but rechecking all isn't a bad idea anyway).
With both speakers playing, turn your balance control fully to the defective speaker and start increasing volume so it is about the level the right speaker was playing. Does the speaker now sound the same? can you hear any imbalances or spurious noises? Scraping noises would indicate some voicecoil damage on the woofer. Remember to reduce the volume after the test BEFORE returning the balance to centre.
If the speaker sounds ok at volume,then that indicates crossover component failure as Allen indicated.
If the bass sounded fine in the above test but treble was weak, it may simply be a burnt out resistor or failing capacitor in the tweeter circuit. Sometimes all you need is a visual inspection (bulging caps, literally burnt out resistors). Post some photos of the crossover.
Ideally an LCR meter would be used to test individual components after a visual doesn't find anything obvious (but rechecking all isn't a bad idea anyway).
These are expensive speakers. You should be contacting the manufacturer directly.
Do not attempt to repair them yourself unless there is no other option.
https://www.yg-acoustics.com/contact-us/
This review shows a typical crossover for one of their other speakers, which will be similar.
https://positive-feedback.com/Issue57/anat.htm
Do not attempt to repair them yourself unless there is no other option.
https://www.yg-acoustics.com/contact-us/
This review shows a typical crossover for one of their other speakers, which will be similar.
https://positive-feedback.com/Issue57/anat.htm
