IEC - International electro-technical commission

Sound system equipment - Part 22: Electrical and mechanical measurements on transducers
(Equipements pour systemes electroacoustiques - Partie 22: Mesurages electriques et mecaniques sur transducteurs)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 23: TVs and monitors - Loudspeaker systems
(Equipements pour systemes electroacoustiques - Partie 23: Televiseurs et moniteurs - Systemes de haut-parleurs)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 24: Headphones and earphones - Active acoustic noise cancelling characteristics
(Equipements pour systemes electroacoustiques - Partie 24: Casques et ecouteurs - Caracteristiques d´annulation active du bruit acoustique)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 3: Amplifiers
(Equipements pour systemes electroacoustiques – Partie 3: Amplificateurs)

Available languages: English, English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 3: Amplifiers

Available languages: English

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 4: Microphones
(Equipements pour systemes electroacoustiques - Partie 4: Microphones)

Available languages: English, English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 4: Microphones

Available languages: English

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 6: Auxiliary passive elements
(Equipements pour systemes electroacoustiques - Partie 6: Elements auxiliaires passifs)

Available languages: Russian, English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 7: Headphones and earphones
(Equipements pour systemes electroacoustiques - Partie 7: Casques et ecouteurs)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

Sound system equipment - Part 7: Headphones and earphones

Available languages: English

Available design: electronic design (pdf), CD-ROM