audiozenology

Responses from audiozenology

THD In Light Bulbs
If it wasn't LEDs it would be compact fluorescents or vacuum tubes. They would use more power and there would be even more noise. LEDs are not noisy, just the power supplies used to drive them. 
THD In Light Bulbs
Summary:If you have no dimmer on the line, then the incandescent bulb will inject less noise.If you have a dimmer on the line, but the dimmer is on full, the LED will likely inject more noise. It will depend on the dimmer and LED bulb.If you have ... 
THD In Light Bulbs
It would be within the realm of an EE if they had the experience and knowledge on the topic. EE is a big area and most EE's would not have the specific knowledge in the area for this article to be of much use without some extensive studying. Heck ... 
How good can it get, really? - my stereo sounds amazing!
I am always amazed as well. Amazed quite honestly at how awful most of the rooms sound. Most of the rooms are poster children for the need for proper room acoustic treatment. I know that is harsh, but I always get a kick out of the "Best Sound" aw... 
How good can it get, really? - my stereo sounds amazing!
If the EMI/RFI is already on the AC line, a power cord is not going to get rid of it unless it has passive elements (inductors, capacitors) to eliminate EMI .... and I would rather pay $1.00 for those than spend $1K plus to have someone put them i... 
Does raising speaker cables off the floor really make a big difference?
Clearthink,If you are going to troll me, which appears to be what you are doing, then you better sharpen your pencil or your Google skills, or go back to school.1) Polypropylene is the second most common material used for indoor carpets and domina... 
THD In Light Bulbs
Basically a switching power supply, akin to a USB charger, and about the same power level as well.I don't see anything about EnergyStar for these bulbs. If they were EnergyStar, they would have to meet some minimum power factor requirements that w... 
THD In Light Bulbs
twoleftears,That is a link to a highly technical article, that is itself really only applicable to one IC / control architecture. Most EEs would not understand the subtleties of it, let alone most people here. It is really not applicable to the op... 
DIY speaker isolation base for a wood floor
Can you explain how you have a damped buckling isolator ... and none of the issues damping brings to the table?  I understand what a mechanical diode is.all you need is a critically DAMPED buckling isolator tuned to an appropriate frequency for ... 
DIY speaker isolation base for a wood floor
You will find that Ethan gets 0 respect here from certain people. I am not one of those people. I don’t agree with him on everything he says, but more often than not he is right. Is he completely right here? While I think he did his best to measur... 
Difference in sound between copper and silver digital cables?
avhifedelity,I have lost count of the number of times I have "tested" things that have "obvious claimed differences", usually by the person standing in the room extolling those virtues, only to have them disappear when the ability to know what the... 
DIY speaker isolation base for a wood floor
Twoleftears,Note what I posted earlier in the thread. The primary coupling is acoustic. Got a good laugh out of claiming the cabinet does not move in one sentence to claiming large floor coupling the next. Which is it?   Could acoustic coupling be... 
DIY speaker isolation base for a wood floor
I never said the spring would oscillate with music though with some of the platforms with their rubber springs they actually would. With a well chosen basic steel spring it will not. However as the op stated he found it wobbly and does not like it... 
DIY speaker isolation base for a wood floor
There is a video posted above by select of the Townsend isolation system 4 speakers. That is a good example David damped spring system.  Well I find the video of it cheesy you can see that that system not only isolates the speaker from the floor b... 
DIY speaker isolation base for a wood floor
If you push down on a mass that’s on a spring and then let go it will oscillate. it’s not a sustained oscillation but it most definitely oscillates. many of us have done this experiment on our car when the shock absorbers were at the end of their ...