Very strange that you have a dedicated line and the lights dim.
This.
What amp do you have?
Do your lights dim when your amp powers up?
Mine do. Even though I have a home electrical system that is only 15 years old, a separate 20 amp breaker, 10 gauge line, and the amp plugged directly into a medical grade outlet.
Do you have this issue? If so, do you care about it, and is there any chance that it is affecting the quality of sound?
kn
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- 30 posts total
Yes, mine do as well. I have 500,000 uf on both the positive and negative power supply rails on the big amp and 300,000 uf on the mid and tweeter amplifiers. Slow start circuits on all the supplies, but it will still pop the 20 breakers on occasion. Thanks for the suggestion to check the connections at the main panel... |
@kennyc :-) @tomic601 tightening a few screws seems like an easy thing to try, never would have occurred to me. It’s not like the room gets dark, but I notice it more recently. Fwiw, this “turning on” from standby to 100W at idle, but perhaps the capacitors don’t remain charged on standby - so part of the initial draw. My “amp” is actually an old Arcam AVR400. I have never considered it particularly powerful by multi-channel receiver standards, but does have a respectable transformer, and lots and lots of circuit boards. Here are the power specs:
Power Consumption
kn |
You are talking high current draw on start up. My suspicion is that your amp may be aged, old caps, etc. and that is contributing to the draw when you fire it up, resulting in light flicker. Dedicated lines don't necessarily insulate from that- they eliminate the noise of additional appliances on the same circuit, but current demands are not changed by the existence of dedicated lines. I defer to someone with technical chops to explain why-- |
- 30 posts total