PC Hardware in a Nutshell, 3rd Edition [Electronic resources] نسخه متنی

Chapter 18. Speakers and Headphones

No matter how good your sound card is, it's useless
unless you have speakers or headphones to listen to the audio it
produces. Extreme high fidelity is usually unnecessary in PC
speakers, both because system fans and other ambient noise tend to
overwhelm minor differences in sound quality, and because most PC
sound applications do not use or require high fidelity. That said,
inexpensive PC speakers, with their 3-inch drivers and low-power
amplifiers, often provide surprisingly satisfactory sound, and
inexpensive headphones can produce sound rivaling the best
consumer-grade audio equipment.