Hello, One of my KingSound King speaker has a very low treble output. The speaker has separate HV supply boards for Treble and Bass. Looks like i need to change the Treble HV power supply board. The existing HV power supply board works on 12v DC supplied from an external adapter. From my online research looks like it outputs 2.6Kv.
I've tried looking online but haven't found anything that i can retrofit, perhaps I'm not using the right keywords in my search? Can some point me in the right direction.
Here's the picture of them I found in another forum post on here.
Thanks.
I've tried looking online but haven't found anything that i can retrofit, perhaps I'm not using the right keywords in my search? Can some point me in the right direction.
Here's the picture of them I found in another forum post on here.
Thanks.
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Easier said than done, I'm afraid. High frequency inverters tend to be fussy about transformers. Last time I looked, most of the DIY bias supply designs like that were older and the transformers were no longer available. It's been a while though, so I could be wrong.
You may find a CCFL backlight inverter that could work, but it's going to be a bit of a gamble, and you'll need some extra circuitry to dial in the voltage you need, which also means you'll need some test equipment to deal with the high voltages.
If you're looking for a challenge, it might be a fun project for you. If you just want your speakers to work, I would also suggest buying the board from the speaker's manufacturer.
You may find a CCFL backlight inverter that could work, but it's going to be a bit of a gamble, and you'll need some extra circuitry to dial in the voltage you need, which also means you'll need some test equipment to deal with the high voltages.
If you're looking for a challenge, it might be a fun project for you. If you just want your speakers to work, I would also suggest buying the board from the speaker's manufacturer.
Also, check out the components available at ER Audio http://www.eraudio.com.au/Electronics/electronics.html.
Good luck
Good luck
I owned 2 pairs for quite a few years.😥 Have you measured the voltage? From my experience there is more likely a leak in the hv wires. Have you replaced or swapped panels recently? Those plugs are fiddly and fragile and don't go back into the frame like they came out. They need to be shrink wrapped thoroughly. I ended up using the bare bullet connectors covered by silicone tubing and shrink wrap.
I sold all the bits to someone on the australian east coast. They came with plenty of spare hv boards and panels. Moved on to an old esl63.
On one of my bass supplies I bypassed the 9v regulator and fitted a adjustable dc board. Ahead of the hv board. I then balanced the 2 speakers at 6.5kv. The problem was damaged hv wires.
Kffern
I sold all the bits to someone on the australian east coast. They came with plenty of spare hv boards and panels. Moved on to an old esl63.
On one of my bass supplies I bypassed the 9v regulator and fitted a adjustable dc board. Ahead of the hv board. I then balanced the 2 speakers at 6.5kv. The problem was damaged hv wires.
Kffern