tf1216
500+ Head-Fier
- Joined
- Jan 8, 2008
- Posts
- 772
- Likes
- 46
KillerPotato, I think I see where you question is stemming from. You understand an amplifier's purpose but you are not considering the numerous factors that are involved in an amplifier design.
Many have already commented on the amplifier's job of adding both voltage and current gain. How well an amplifier does it's job of voltage/current gain depends on the design.
What happens is the load on the amplifier changes versus frequency and each amplifier will handle the load differently. This is why some amplifiers are so expensive. Designers decide to cut less and less corners in the design so the amplifier can handle any type of load without audible differences. That is a really simple way of explainging things.
Also, different approaches are taken in designing amplifiers that add a certain character to the audio signal. There are differnt output devices, different means of filtering, differnt approaches to amplifying signals, different ways to supply power, and so on.
Many have already commented on the amplifier's job of adding both voltage and current gain. How well an amplifier does it's job of voltage/current gain depends on the design.
What happens is the load on the amplifier changes versus frequency and each amplifier will handle the load differently. This is why some amplifiers are so expensive. Designers decide to cut less and less corners in the design so the amplifier can handle any type of load without audible differences. That is a really simple way of explainging things.
Also, different approaches are taken in designing amplifiers that add a certain character to the audio signal. There are differnt output devices, different means of filtering, differnt approaches to amplifying signals, different ways to supply power, and so on.