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As some of you may recall, i've become somewhat of a modeling amp whore after trying a mustang III and being surprised to find how far modeling has come since i last tried them. I bought the amp and have been totally thrilled with it except for one thing. Like audio in a PC app you can get glitches in the sound at times that manifest as bursts of noise or slight artifacts that you just barely notice but can be bothersome. Anyways, some of you guys are smarter when it comes to all areas of electronics than those i find at other forums so i figured this is the best place to find an answer. The question is this....power conditioners.....do you think these would help keep a digi amp sounding consistent and void of such glitches? If you think it's worth getting one, any thoughts as to something reasonably price, or best bang/buck? Thanks..
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No.
Artifacts and glitches are exactly that: artifacts and glitches. The power supplies in these amps are already filtered on the incoming mains supply. The mains is not directly used in the circuits, the mains is just rectified and filtered, then switched at high speed by the SMPS.Education is what you're left with after you have forgotten what you have learned. -
But what about power fluctuation in the mains? I take it the voltage regulated in the amp, but if so does that keep it dead steady or only within a certain variance?Comment
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What he said ^^^. Glitches go with the territory. The only power line issues would be if your machine locks up due to low line voltage (brown out) and requires a re-boot (that sounds so wrong when speaking of guitar amps
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And if that becomes a common issue, a power conditioner won't help, you will need a UPS (uninterruptible power supply) which are fairly expensive.
I would think modern stuff would be fairly immune to this issue, but early digital gear was often prone to this, and club AC just exaggerated it.Originally posted by Enzo
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Most people do not have power conditioners in their lives, yet they have home computers, digital TV sets and DVRs, other home automation, all digital stuff. And all those things keep working fine. Nothing these days is very sensitive to a noisy mains environment. In an old fender amp, there is a power transformer that changes the voltage coming in to a ratio going out, so if the line goes up 6vAC on the mains, then the secondary voltages will also go up 5%. SImple linear supply. If you do that to an SMPS, it will simply change its switching rate to compensate. There is no direct correlation between primary and secondary sides.
Look at a common three-leg voltage regulator like a 7815. You run into it anything from about 18v to maybe 30v and it spits out a steady 15v. Doesn't matter if the incoming voltage goes up and down some, the regulator only cares about the output. The computer stuff runs on +5v and +3.3v, and those are regulated all by themselves after whatever it took to get to them.Education is what you're left with after you have forgotten what you have learned.Comment
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Ok, thanks guys. Not a huge issue at all. But what concerned me wasn't the obvious glitches but that if it WAS a possibility, then maybe it could also affect the tone on a less obvious level like causing much less obvious artifacts that might manifest as a lesser quality tone. But youse guys set me straight yet again. Thanks !Comment
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