Big differences — home and professional audio equipment.
Professional and Consumer Audio
Impedance
Very early in this book we discussed the concept of impedance. In the world of video, life was simple because there was one impedance for everything. It is very different in the world of audio. Consumer video is high impedance (10,000 Ω (ohms)). High-impedance equipment is less expensive to manufacture, has poorer sound quality, and can only be sent down short cables. Professional equipment is low impedance (600 Ω or less). Low-impedance equipment has better sound quality, can be sent down longer cables, and is more expensive. There are converters that will change high impedance to low impedance and low to high, but the good ones are fairly expensive. ...
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