|
Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
|
|
|
Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
|
In Reply to: Re: too much current equals heat. a fuse is designed to stop the flow- posted by pburke on January 16, 2003 at 15:18:36:
15A input circuit? 240A output circuit? Riiight. You can't make a skyscraper out of a box of toothpicks, no matter what the website says.It's clear to me now that you don't understand how electrical circuits work, so let me give you an analogy.
Suppose we suspend reality for a moment and believe that these household current power amps can actually deliver 240A instantaneous current. Let's put it in easily grasped terms.
A capacitor is nothing more than a storage device, so let's pretend we have enough big fat capacitors to store your 240A. So, a capacitor is a storage device, like a swimming pool stores water.
Capacitor = swimming pool
Current = water
Wall outlet = hose to fill swimming pool with waterWe have our swimming pool (capacitors) filled with with water (current), and along comes a fat guy (dynamic peak/musical crescendo), jumps into the pool and splashes half the water out. So now our pool is partially drained, and we have to refill it with the hose. Problem is, our swimming pool is Olympic-sized (240A capacity) and our hose is actually a McDonalds drink straw (15A outlet). So we start furiously pumping water into the pool through the straw; meanwhile, another fat guy comes along, jumps into the pool and splashes the rest of the water out! Our poor straw can't keep up with the demand, but it sure tries. Unfortunately another fat guy comes along, jumps into the now empty pool, and splats on the dry bottom.
Yes, capacitors can store current, but in a power amp when they drain you must refill them. You can't fill 240A worth of capacitors fast enough with a 15A circuit and make music.
The link you gave me pointed to a message asking an essentially meaningless question. "Concentrate on current, not on watts" doesn't get us anywhere. Current isn't power, current is force - a flow. "High current" simply means high flow. Current is measured in amperes (amps for short). POWER is measured in watts. A Watt is a derived unit. Guess what it's derived from? Current. So you can't say "current means more than watts." They are inextricably linked. As I mentioned before, the derived power units from 240A of current is 27 Kilowatts. Do you honestly believe that you're going to have that prodigious an amount of power available from home amplifiers?
High current in amps is a good thing, but "high current" in an audio power amp is more like 5 - 18 Amps (18 Amps is a lot of current in an amp!), not the ridiculous numbers on the Odyssey website.
If this manufacturer's claims are really true, I would caution you against bringing such devices into your home. If they are truly capable of that kind of power and current flow, they are LETHAL without even taking the cover off. Accidently touching speaker connection posts while the caps are charged could mean death! It wouldn't even have to be powered on to deliver a smashing blow.
One more time - you cannot put a small flow in and get a big flow out. It's impossible. The Universe simply doesn't work that way, despite the manufacturer's wild claims.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: too much current equals heat. a fuse is designed to stop the flow- - Earache 17:38:58 01/16/03 (1)
- Speakers store energy. - Leisure7 19:56:26 01/16/03 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
