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may notice a small amount of background noise. Conversely, you will hear weak
signals more readily than would be the case with lower-sensitivity OE types.
We are not discussing a product defect. Electrical noise arises from many factors,
one of which is the amount of amplification the Icon product provides.
Irrespective of type or design, electrical circuits introduce noise. If the device
amplifies the signal, the noise coming into it will likewise be amplified. Further,
the amount the device itself creates will also be greater. These are facts of
electrical life that good design can mitigate. In the case of IE headphones, noise
can be minimized or all but eliminated by reducing the amplifier’s gain. But to
do that, the advantage the amp offers to OE headphone users would be
sacrificed. Performance benefits for one type of product diminishes those of the
other. As always, effective engineering requires compromise. In this regard, the
NuForce Icon Series of products offer good, real-world solutions. Noise will be
low in some cases, and in others, quite imperceptible. Most importantly, OE
headphone users will benefit from the power they require.
For further reading:
http://www.nuforce.com/hp/support/icon-hdp-noisefloor.php.