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Post by creimes on Oct 15, 2017 2:35:46 GMT -5
Isn't a thump usually caused by the device upstream, in this case the 7704 or does it exhibit this with the XMC as well.
Chad
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Post by Gary Cook on Oct 15, 2017 6:03:46 GMT -5
Isn't a thump usually caused by the device upstream, in this case the 7704 or does it exhibit this with the XMC as well. Chad I'm with Chad, the source is usually the source, the common test is to swap the start up order and/or delay the individual timing. Cheers Gary |
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Post by leonski on Oct 18, 2017 14:43:11 GMT -5
Turn-on order may play into this. Turn amps on LAST and try again.
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Post by pedrocols on Oct 18, 2017 15:46:02 GMT -5
Just pick it up and do a few sets of shoulder presses with...😎
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Post by leonski on Oct 19, 2017 16:42:37 GMT -5
What if you just left the amps ON?
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novisnick
EmoPhile
CEO Secret Monoblock Society
Posts: 27,223 
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Post by novisnick on Oct 19, 2017 16:44:52 GMT -5
What if you just left the amps ON? Thats a lot of heat! |
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Post by busychild on Dec 6, 2017 20:36:18 GMT -5
I had a similar issue with power up and power down thumps. I had the triggers set up so that the amps were powered up and down off of the voltage stabilizer and AC line conditioner. The voltage stabilizer trigger had a 3 second delay that I had not noticed in programming. So when I powered up and down, the amps weren’t synchronized with the processor. I switched around the triggers so that the amps powered up and down off the processor. Problem was solved in my system.
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Post by leonski on Dec 24, 2017 14:16:13 GMT -5
I had a similar issue with power up and power down thumps. I had the triggers set up so that the amps were powered up and down off of the voltage stabilizer and AC line conditioner. The voltage stabilizer trigger had a 3 second delay that I had not noticed in programming. So when I powered up and down, the amps weren’t synchronized with the processor. I switched around the triggers so that the amps powered up and down off the processor. Problem was solved in my system. My power conditioner has delays to several of the outlet 'banks' which I've never bothered to program or address. I think I can delay the high power outlets, which are presumably meant for amplifiers, as much as 10 seconds. That IS indeed one avenue of 'cure' for thumps. You have to experiment a little. Turning everything on/off simultaniously might or might not be the way to go. The Most Common Wisdom calls for amp ON LAST and OFF FIRST. audiokarma.org/forums/index.php?threads/power-up-power-down-order.151385/I believe that an inline time delay relay circuit, meant to go into the 'trigger' circuit might be of some help AND might sell. |
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