A

A2B (Automotive Audio Bus) — Ch 14.3
AAC codec — Ch 5.2
Absorption coefficient (polyfill) — Ch 10.2
Accuton drivers — Appendix B
Accuracy, tonal — Ch 13.2
Active crossovers — Ch 1.4, Ch 4.1
Active noise cancellation (ANC) — Ch 14.2
Adaptive filtering — Ch 14.2
AGM batteries — Ch 2.2, Ch 11.2
Airflow, port — Ch 10.3
Alignment, enclosure (Butterworth, Chebyshev, Bessel) — Ch 10.2
Alternator
  Big Three upgrade — Ch 11.3
  High-output selection — Ch 11.1
  Noise/whine — Ch 3.3, Ch 7.2, Ch 11.6
  Output requirements — Ch 11.1
  Ripple voltage — Ch 11.1
Amazon (retailer) — Appendix B
Ambisonics — Ch 14.1
American Wire Gauge — See AWG
Amplifier
  Bridging — Ch 8.3
  Class A/AB/D — Ch 1.3, Ch 11.5
  Efficiency calculations — Ch 6.5
  Gain setting — Ch 4.5, Ch 8.3
  Installation — Ch 2.5
  Power compression — Ch 10.2
  Protection mode — Ch 7.3, Ch 11.6
  Thermal issues — Ch 7.3
Amplifier brands — Appendix B
Android Auto — Ch 5.1
ANL fuses — Ch 2.2, Ch 9.4
Antenna adapter — Ch 2.6
Apple CarPlay — Ch 5.1
aptX codec — Ch 5.2
Arc Audio — Appendix B
Artifacts, digital — Ch 5.2
Atmos, Dolby — Ch 14.1
Attenuation (crossover slopes) — Ch 9.5
Audison — Appendix B
Audio control DSP — Ch 12.1, Appendix B
Automotive Audio Bus — See A2B
AWG (American Wire Gauge)
  Ampacity chart — Appendix A
  Selection guide — Ch 2.2, Ch 11.5
  Specifications — Appendix A