Carvin BX500 Problems-Power Conditioner Required?

[FunkHead]

Isolation, regulation, current limiting, current production, noise filtering, and spike protection are all very different in relation to each other. You will not find a unit that does all these in one unit very well unless you are planning to spend major money even if the company claims to provide this it's more than likely snake oil. Spike protection with simple MOV's and simple noise filtering are had easy. No free lunches here.

BTW any AC device will function without a ground. A missing ground should not ever cause any damage to any device. The ground is for safety for me and you. However trying to run any type of AC device with a hot and a ground without a neutral will fry anything. This is most likely the most common issue to be found with outlets and the most likely way to get damage.

The best solution is checking an outlet for correct wiring with the 3 dollar device.

You want some protection against spikes? This is protection 32,000 joules protection prior to sacrifice, no circuit interruption.

That looks pretty Impressive. Where can I get One?

 

[Red Planet]

It's a Panel Guard made by Intermatic. The box on the right is all it comes with. I moungted it to a 4 gang outlet box and wired in 15 foot of 10 gage SO cord. I got it from an industrila electrical supply in Atlanta.

 

[FunkHead]

Thanks, I'll be picking one up.

 

[bongomania]

Cool, just so long as you don't assume surges were the problem that affected your amp.

 

[januchito]

Hi

have a Carvin BX500 failed. Study the same problem, have some conclusion and some ideas maybe help you.

But be cause my english is the worst and try to explain some technical references, used a Google translation tools. Please, sorry for the errors.

The electrical net.

In a country/state the electric power generator plant, is conected in a big net. Is normal in this net, some station fail, and it is necessary to leave the group.. When this happens, the other stations in operation should increase power to supply what is missing.

This makes for a day, or even hours, the voltage and frequency is not stable and have small variations, most of the time can only be seen with an instrument (electronic tester). And when they are very big, have blackouts, or light bulbs "flash"

In the wordl exist some diferentes electrical network, USA for example use 115v@50hz, Chile and France use 220@50hz, japon used 230V@60hz.

Why explain this?

The power supply in the amp

The design of the power supply for an amplifier is a problem for factories. This is because for each country, you must have a different source. Usually two solutions are decanted.

One is to build two or three sources that only work in certain countries where market studies indicate that it can sell more (such as USA, Europe, Japan etc.) And smaller markets simply, manufacturers say they have no representation in the area.

The good news is that a power supply designed for a single standard is very resistant to changes in the supply system, and if the varacion is my great, just off or a fuse blows.

The other solution is to have a more complex power supply (which is actually two in one) and one team do you export to Any side. But production is more expensive.

The switching power supplies, used in class D, is a new technology in sound yet. Computers are used in some 35 or 40 years. They had many problems to filter and get a clean stream to sound good. But like any new technology, is still fragile.

The carvin BX500 has an automatic power supply, which recognizes and adapts the network, with the idea that it is portable for a professional bassist traveling to different countries and that this does not worry about where you are playing. Apparently, if your network is very unstable, with ups and downs of voltage, frequency variations, this adaptation system begins to be passed from one standard to another, with the amplifier in operation. FET until some bursts by changes from the modulator. Or you can probocar inductor failures (this is when you hear something like that is fried in the amp).

My proposal for a solution.

The murderer of more common switching power voltage is rising. The solution that I think most basic economic and portable is a "power strip" as it is called in chile. See this example

https://www.pcfactory.cl/producto/9465-Protector.de.sobrevoltaje.7x.2.1mt

Please, in no way be confused with this other guy, similar but cheaper and compact. It resembles the other, but no more than a switch, without any protection.

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Ideally for me, to protect this type of amp for me is a UPS, the same used in desktop computers. I hope to buy one and use it. This protects you against increases, low and frencuencias variations, but it is far more expensive than the previous solution.

https://www.pcfactory.cl/producto/11393-UPS.750VA.POWER.LINE-INTERACTIVE.A750..375W

unfortunately this device removes the "portability" to the amplifier.

Sorry so long text. regards

 

[FunkHead]

Finally Tested the Power outlet and it was faulty. It tested as having an Open in the Neutral circuit. After 2 fried Bx500's, I guess the cheap tester I used is accurate.