posted
Does the volume you have your head unit set at directly effect how much current your amplifier(s) will draw? example: lets say my cd player volume button goes up to 40, i have it at 8 (low volume) i assume my amp would draw a small ammount of current. now lets turn the volume up to 30, theoretically my amp would pull more currnt since it's getting a stronger signal right? tell me if im wrong.
posted
Your exactly right. The output of the HU drives the amplifier, and that varies with volume. Even at high volume levels, if there is silence from the media, the amp will not pull much power.
------------------ STILL waiting to hear a GOOD pair of HLCD's!!
If it dont fit, force it... if it breaks, it needed to be replaced anyway...
posted
What the volume control does is simply adjust the relative voltage of the line level signal.
That means, when the volume is turned down, the voltage is lower, and as you turn it up, the voltage goes up.
An amp takes that signal voltage and makes it greater, called voltage Gain.
With this higher voltage, it then connects to the load (speakers) across a transistor. Because current equals Voltage/Resistance (? Is that right?),
Voltage I (current)= ------- Resistance
When voltage goes up, and resistance stays the same (speakers), the current must go up to keep the equation true.
That is the current gain stage of an amp.
Now nobody start getting nitpicky, this wasn't a very technical definition (i'm still working on my solid state circuits) so if I screwed up a little, correct me gently (looking at TECH MAN)
ShadowStar
------------------
Computers are a lot like air conditioners.. Open Windows and they become useless..
The day Microsoft makes something that doesn't suck is the day they make vacuums.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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