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Showing content with the highest reputation on 08/07/2010 in Posts

  1. 1 point
    So hey guys! i was looking at a car and i was wondering what would be better, i was thinking either Ferarri or a dump truck. Any advice would be awesome! thanks
  2. Um... I hate to tell you this. But you obviously unloaded them sometime..some how..some way...because you uh..locked the coils outside of the top plate...that means the former came out 10mm PAST the top of the top plate...because the pole piece is hyper extended outside of the top of the top plate...so you were WAY past linear limits... Speakers do NOT do that..unless you unload them in either a ported box that is way too big (yes) with woofers that aren't made for a ported box (again, problem number 2)
  3. My last set-up I just mounted the box to the trunk floor and then made side panels that screwed to the side of the box. I also had to make a filler along the bottom of the box. I wraped the filler panels with matching felt and called it good. My setup now I did about the same thing only I used the expanding foam. IF you are just trying it out I woundn't do any foam, just get the box and side panels as tight as possible. DON"T waste any sound deadener on it. Let me know if you have anymore questions.
  4. How would an amplifier send heat down the speaker wire? The amp does put out more power when it is clipping due to the area under the sine wave curve increasing. Think of a sine wave. Actually, draw one. Well, here, I'll draw one for you. The black is the maximum unclipped signal that the amplifier can put out. The thinner black lines represent the limit. When you turn the gain up too far, the signal wave does get a higher amplitude, as seen by the red sine wave (poorly and quickly drawn). However, because the amplifier has reached it's signal amplitude limit (thin black lines) it has to cut off the peaks and valleys of the sine wave. It cuts it off along the blue dotted line. So the red line/blue dotted line is what is sent to your speaker. Notice the area under the red/blue curve is greater than the area under the black curve. That extra area is extra power being sent. A fully clipped, square wave has twice the power as a normal sine wave of the same amplitude. Read this thread: http://www.soundsolutionsaudio.com/forum/i...showtopic=19001 Actually the first link in djjdnap's post at the bottom explains all this better.
  5. I'm in search for answer for this, I have an idea of how it works just not really sure on how to explain it. I am sure 95Honda can explain it. My guess is the input sensitivity works with the preouts in an op amp configuration producing gain for further amplification. Now there is multiple ways an op amp can be wired producing different results but it seems to me that a non inverting configuration would be the one used. looking at the diagram Input = the RCA line left or right (there will be one circuit for each line) R1 = is the sensitivity knob (a potentiometer) R2 = is a resistor that sets how much gain is produced. R1 is set to drop as much voltage as Vin is producing so that 0V is across the + & - inputs. When R1 is set to a low resistance the voltage across the + & - inputs increases creating to much gain from the amplifier and driving it into saturation (clipping). This is just for the preamp stage the signal then goes on for further amplification That is how I assume it works but I could be wrong.

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