IMHO, that sounds like a bad cap in the DBX unit. I don't think you're clipping anything.
Dbx 3bx pops
Hi People, i rarely ask in the forum, but this problem is driving me kinda crazy. I have a 3bx ds dynamic range expander that i use with my turntable and, only with certain albums and certain songs, it makes a poping sound. The "pop" sound always happens in the same part of a song, so it's not random, and it depends on how much expansion or impact restoration i have dialed. Could it be that the dbx is making my amp clip? (i have a cambridge axr 85 amp). The popping sound is so loud that it scares me everytime...but it only happens if im using the dbx.
In this video you can clearly hear it after the part that says "New York times"
Showing 3 responses by mofimadness
If it’s been serviced, I’d be surprised if they didn’t catch a bad cap? How long after you turn it on, does it pop? Also, the DBX unit is right under the table. Have you tried moving it further away? Maybe the cartridge is picking something up from the unit? I’ve listen to the pop several times now. It sure sounds like a static discharge to me. It builds up and then releases as a pop. It sounds like a Zerostat gun? When an amp clips, it cuts the top of the waveform off. Here is an example of amp clipping: https://www.youtube.com/watch?v=SXptusF7Puo Much different sound than your pop. |
I assume it happens when you turn "up" the DBX and not down? If so, it's adding something that's overloading or causing a ground/static discharge. Those DBX units are notorious for noise and "pumping and breathing". I was a DBX dealer for awhile. Sorry, but never a fan. I still think it might be a cap that's leaking and can't hold a charge...
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