Originally Posted by Uncle Erik
An amp doesn't amplify the sound waves. It provides current and voltage to the driver.
A headphone driver has a voicecoil attached to a cone. (I'll just go into dynamic drivers here.) The voicecoil is a coil of thin copper wire. There's also a magnet behind the voicecoil. When you pass the signal through the voicecoil, you have to have sufficient power for the voicecoil to move the cone back and forth against the magnet.
If you don't have enough power, the cone's movement is weak or sloppy. Think about trying to go up a big hill on a bicycle compared to going up the hill on a car. The more power you have, the faster you can get to the top.
It's the same way with amplifiers. If you have an easy headphone to drive, then you can just use an iPod to push it back and forth. If you have something difficult to drive, like an AKG K-1000, then you need a lot more power.
Ok i see, so how do you based on your specs when you can benefit from an amp?
Is it true that you can get a richer soundstage and improved bass/treble as people here say?
I mostly listen to hip/hop dance/techno and although the bass coming from the shure is satisfactory, i can never get enough. Is it possible that a portable amp can drive the bass to the limit for my entertainment?
|In music's loud passages and specially in reproducing bass, with an amp, simply put, you should be able to hear it better.
Reproducing bass, you mean getting a louder a clearer bass? IS that possible with an amp cause that's what I'm looking for.