MY MXR STEREO CHORUS LED LIGHT START TO FADE AFTER CONNECT WITH DC BRICK! DOES THIS MEAN MY PEDAL WILL HAVING ANY DEFECT?

Quite simply connect each output to its own guitar amp or use two mono or one stereo DI box and connect to stereo PA.

Yes. I run all my modulation pedals into the compressor, then into the MXR Ten Band EQ, then into the effects loop. But it also works in the front of the amp as well to tighten up your distortion. Try it both ways and find the sound you like best.

Usually with volume pots,the ratings dont matter. you can really buy then anywhere like guitar center,micro center and online. they're really cheap and well worth it.

The battery is being shorted by something. It is impossible for me to guess what without looking at it. If the pedal is brand new, take it back for warranty repair/replacement. If you bought it from somebody, you bought THEIR problem... they likely knew about it. If this is the case, look for a pinched wire from the battery lead... make sure it is not backward. If you can't see anything and cannot get a refund, open the pedal. Look for a problem where the 9 volt adapter plugss in. Broken jack, etc. Look for evidence that somebody has taampered with the insides. Of course look for foreign debris.

Chances are the switch itself is defective... Either the toggling mechanism in it is bad or it has excessive contact bounce. Replace the switch.

The fact that it happens with 2 different units may point to something in common. You just first eleminate the cables as a possibility by swapping. Also, most pedal problems can be traced to a battery issue, so make sure it is a good one. Make sure you are using mono, not stereo cables.

The footswitch could be faulty, try holding it in different ways to see if it makes contact.

Make sure power voltage is adequate. If using a battery, the LED will light LONG after the batteery is beyond usability.

If you are using battery power, just because the LED lights doesn't mean the battery is adequate. Check the battery voltage.

If you are on adapter power, make sure any bypass switch is in right state. Also occassionally someone gets the in's and out's cables backward... that can do it!

Personally, I like to have all "tone effects", such as wahs, distortions and equalizers in front of "time effects" such as phasers, chorus, flangers and delays. See my set up in the photo. Guitar input is from right to left, starting with the wah pedal.
Tom, 30yr player