crossover distortion: meaning, definition, pronunciation and examples
C2Technical
Quick answer
What does “crossover distortion” mean?
A type of audio signal distortion that occurs in electronic amplifiers when the output signal transitions between the positive and negative halves of the waveform, due to a mismatch in the switching of complementary transistors.
Audio
Pronunciation
Definition
Meaning and Definition
A type of audio signal distortion that occurs in electronic amplifiers when the output signal transitions between the positive and negative halves of the waveform, due to a mismatch in the switching of complementary transistors.
In a broader sense, any artefact, error, or undesirable effect occurring at a point of transition, transfer, or handover between two systems, processes, or states, often due to a gap or mismatch. Can be metaphorically applied outside electronics.
Dialectal Variation
British vs American Usage
Differences
Spelling and terminology consistent ('distortion'). No significant lexical difference for this term.
Connotations
Purely technical connotation in both regions.
Frequency
Equally low-frequency and confined to technical contexts in both British and American English.
Grammar
How to Use “crossover distortion” in a Sentence
The amplifier exhibits [crossover distortion].[Crossover distortion] is a problem in [Class B amplifiers].To minimise [crossover distortion], engineers use [a bias circuit].Vocabulary
Collocations
Examples
Examples of “crossover distortion” in a Sentence
verb
British English
- The amplifier crossover-distorts the signal at low levels.
- The design aims to avoid crossover-distorting the output.
American English
- The amplifier crossover distorts the signal at low levels.
- The design aims to avoid crossover distorting the output.
adverb
British English
- N/A
American English
- N/A
adjective
British English
- The crossover-distortion measurement is critical.
- They analysed the crossover-distortion characteristics.
American English
- The crossover distortion measurement is critical.
- They analyzed the crossover distortion characteristics.
Usage
Meaning in Context
Business
Rare; only in technical product specifications or R&D discussions for audio hardware.
Academic
Used in electronics engineering, audio engineering, and physics papers discussing amplifier design.
Everyday
Virtually never used.
Technical
Core usage context. Discussed in relation to amplifier classes (e.g., Class A, Class AB, Class B), biasing, and audio fidelity.
Vocabulary
Synonyms of “crossover distortion”
Strong
Neutral
Weak
Vocabulary
Antonyms of “crossover distortion”
Watch out
Common Mistakes When Using “crossover distortion”
- Misspelling as 'cross-over distortion' (hyphenated adjectival form is less standard).
- Using it to describe general signal distortion rather than the specific zero-crossing type.
- Confusing it with 'clipping distortion' or 'harmonic distortion'.
FAQ
Frequently Asked Questions
No, they are fundamentally different. Clipping occurs when the signal amplitude exceeds the amplifier's maximum output, flattening the peaks. Crossover distortion occurs at low signal levels around the zero-crossing point due to imperfect switching between complementary devices.
It is most inherent and severe in pure Class B amplifiers, where each transistor handles exactly half the waveform and is completely off for the other half. Class A amplifiers avoid it entirely, and Class AB amplifiers are specifically designed to minimise it.
Yes, typically as a subtle 'fuzz', 'grit', or 'crunchiness' on very quiet passages of music or during silent transitions. It adds odd-order harmonics which can be subjectively unpleasant.
It is often measured using a low-level sine wave (e.g., 1 kHz) and observing the output on an oscilloscope for a 'notch' at the zero-crossing point. Total Harmonic Distortion + Noise (THD+N) measurements at low power levels also reveal its presence.
A type of audio signal distortion that occurs in electronic amplifiers when the output signal transitions between the positive and negative halves of the waveform, due to a mismatch in the switching of complementary transistors.
Crossover distortion is usually technical in register.
Crossover distortion: in British English it is pronounced /ˈkrɒsˌəʊvə dɪˈstɔːʃən/, and in American English it is pronounced /ˈkrɔːsˌoʊvɚ dɪˈstɔːrʃən/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “N/A”
Learning
Memory Aids
Mnemonic
Imagine a car (the audio signal) crossing over a bridge from one side of a river (positive voltage) to the other (negative voltage). If the bridge has a gap in the middle (the 'crossover' point), the car jolts – that's the distortion.
Conceptual Metaphor
A SEAM/JOINT THAT CATCHES (The imperfection occurs at the precise point where two parts meet and hand over control).
Practice
Quiz
What primarily causes crossover distortion in an audio amplifier?