Foreword
1 Scope
2 Normative references
SECTION 1: POWER SUPPLY
3 AC power supply voltages and frequencies
4 DC power supply voltages
5 Power supply device for microphone
SECTION 2: INTERCONNECTIONS
6 Connections
7 Connectors
SECTION 3: MARKING
8 Marking
9 General purpose inputs
SECTION 4: PREFERRED MATCHING VALUES
10 Matching of microphones and amplifiers
10.1 Microphones (except piezo-electric types)
10.2 Microphones with built-in amplifier
10.3 Power supply feeding for electret microphones fed over a
     separate conductor
10.4 Phantom supply system
10.5 A-B supply system
10.6 Polarity of the audiofrequency voltage
10.7 Input from microphone to computer (for example, for a
     voice recognition system)
11 Matching of record-playing units (pick-ups) and amplifiers
12 Matching of tuners and amplifiers
13 Matching of amplifiers and amplifiers
13.1 Pre-amplifiers and power amplifiers for household and
     sound reinforcement
13.2 For broadcast and similar line-amplifiers
14 Matching of magnetic tape recorders and amplifiers
14.1 Output
14.2 Current-fed input
14.3 Voltage-fed input
15 Matching of auxiliary equipment and amplifiers
15.1 Output
15.2 Input
16 Matching of loudspeakers and amplifiers
16.1 Single-unit loudspeakers
16.2 Loudspeakers systems
16.3 Voltage (or power) matching of amplifiers and
     loudspeakers
16.4 Polarity of the sound pressure
17 Matching of headphones and amplifiers
17.1 Impedance-defined headphones
17.2 Voltage-defined headphones
18 Auxiliary passive elements
19 Analogue matching of digital audio sources and amplifiers
   for household and similar use
Figures