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Post by silverrubicon on Sept 6, 2020 7:59:17 GMT -5
When powering off my TA-100, there is a small pop that occurs in the tweeter. It's not relative to volume, it occurs across all inputs and also occurs if no devices are plugged into the amplifier. I haven't found a mention of this "quirk" in this forum and would like to know if this normal? This is a brand new unit recently purchased directly from Emotiva.
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Post by garbulky on Sept 6, 2020 14:22:37 GMT -5
It's not normal
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Post by boomzilla on Sept 7, 2020 8:03:03 GMT -5
That's probably a bad capacitor in the power supply. I'd contact Emotiva and ask. In the meantime, just leave the amp on continuously. It won't hurt it & it'll probably sound better.
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Post by silverrubicon on Sept 7, 2020 15:25:46 GMT -5
Thanks. I will be asking Emotiva. Have had the worst luck with AV equipment over the last couple of weeks. Have been trying to find a desktop dac & amp and this will the 4th thing I've tried that has had a problem. The first 3 (Marantz, SVS) were refurbs and none of them apparently were actually refurbished.
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Post by GusGus on Dec 30, 2023 11:20:10 GMT -5
I bought a used Emotiva TA-100, which is in excellent condition, but when I use it, my speakers have that pop sound when I turn it on/off.
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Post by boomzilla on Dec 30, 2023 12:08:21 GMT -5
Speakers (at least non-self-powered ones) are incapable of making ANY noise by themselves (much less pops). If you’re hearing pops at shut down, your amplifier has a DC offset due to a leaky power supply cap. This CAN DAMAGE YOUR SPEAKERS, and should be fixed by repairing or replacing your amp immediately. Really - it might run without any damage for years, or it could destroy both your speakers and your amp next time you run the system. Is it worth the risk?
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Post by vcautokid on Dec 30, 2023 17:30:45 GMT -5
Quick question here. If you turn the volume all the way down, do you get that pop too? If so it could be a defective capacitor such as leaky or who knows what. Until you can get that addressed, (is it still under warranty? Nothing is perfect, and that is why there are warranties.) if you have to still use the PT100 I would crank the volume all the way to zero before you shut it down. When you power it up, I would hope it would be where the last setting would have been. That would be at zero. But a support call to Emotiva I would think is your best option.
I am also thinking also what Boomzilla had posted too. Many amplifiers use a DC servo to combat against DC offset, not sure if the the PT100 does that. Probably more of a curiosity for myself, but for sure I would reach out to Emotiva support for the next step.
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