A balanced audio connection can reject interference that appears similarly on its two signal conductors.
Balanced Audio Cables Reject Noise—But Only with the Right Connections Read Post »
A ground loop can introduce hum when connected audio equipment has multiple conductive paths between reference points.
A Ground Loop Makes Your Speakers Hum—Do Not Remove the Safety Ground Read Post »
Class D describes a switching amplifier output stage, not a guarantee that its input signal is digital.
Class D Amplifiers Are Not Automatically Digital Read Post »
Clipping happens when an audio stage cannot reproduce the requested signal amplitude.
Clipping Can Sound Loud Before It Sounds Good Read Post »
An 8-ohm speaker is not a fixed 8-ohm resistor across the audio band.
Speaker Impedance Says 8 Ohms—Why Does It Change with Frequency? Read Post »
A 100-watt amplifier does not make the same speaker sound twice as loud as a 50-watt amplifier.
A 100W Amplifier Is Not Twice as Loud as a 50W Amplifier Read Post »
Copper-clad aluminum cable contains an aluminum core with a copper outer layer.
Copper-Clad Aluminum Cable Is Not the Same as Solid Copper Read Post »
A connector current rating is tied to conditions such as conductor size, ambient temperature, and how many contacts carry current.
Why Connector Ratings Change with Wire Size and Temperature Read Post »
A wall outlet with USB charging contains a power converter as well as ordinary receptacle contacts.
A USB Outlet Has Electronics Inside—What Happens When They Age? Read Post »
An outdoor receptacle and its weather cover perform different jobs.
Outdoor Covers and Outdoor Outlets Solve Different Problems Read Post »
