{"id":228778,"date":"2024-10-19T14:52:38","date_gmt":"2024-10-19T14:52:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-60268-32013\/"},"modified":"2024-10-25T08:58:47","modified_gmt":"2024-10-25T08:58:47","slug":"bs-en-60268-32013","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-60268-32013\/","title":{"rendered":"BS EN 60268-3:2013"},"content":{"rendered":"

This part of IEC 60268 applies to analogue amplifiers, and the analogue parts of analogue\/digital amplifiers, which form part of a sound system for professional or household applications. It specifies the characteristics which should be included in specifications of amplifiers and the corresponding methods of measurement.<\/p>\n

\n

NOTE The methods of measurement for digital amplifiers and similar equipment are given in IEC 61606 [4] 1.<\/p>\n<\/blockquote>\n

In general, the specified methods of measurement are those which are seen to be most directly related to the characteristics. This does not exclude the use of other methods which give equivalent results.<\/p>\n

In general, the methods are based on the simplest measuring equipment which can provide useful results. This does not exclude the use of more complex equipment which can give higher accuracy and\/or allow automatic measurement and recording of results.<\/p>\n

Rated conditions and standard measuring conditions are specified in order to allow measurements to be reliably repeated.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
10<\/td>\n3 Conditions
3.1 Rated conditions and standard measuring conditions
3.1.1 Overview
3.1.2 Rated conditions <\/td>\n<\/tr>\n
11<\/td>\n3.1.3 Standard measuring conditions
3.2 Other conditions
4 Classes of operation <\/td>\n<\/tr>\n
12<\/td>\n5 Interchangeable parts
6 Automatic controls
7 Power supply
8 Position of the volume controls <\/td>\n<\/tr>\n
13<\/td>\n9 Pre-conditioning for measurements
10 Series of measurements
11 Variable consumption apparatus
12 Marking <\/td>\n<\/tr>\n
14<\/td>\n13 Operating environment
14 Characteristics to be specified, and their methods of measurement
14.1 Power supply characteristics
14.1.1 Characteristics to be specified
14.1.2 Method of measurement <\/td>\n<\/tr>\n
15<\/td>\n14.2 Tolerance of (long-term) power supply voltage variations
14.2.1 Characteristic to be specified
14.2.2 Methods of measurement <\/td>\n<\/tr>\n
16<\/td>\n14.3 Tolerance of power supply frequency variations
14.3.1 Characteristics to be specified
14.3.2 Methods of measurement <\/td>\n<\/tr>\n
17<\/td>\n14.4 Tolerance of power supply harmonics and ripple
14.4.1 Characteristics to be specified
14.4.2 Methods of measurement
14.5 Input characteristics
14.5.1 Rated source impedance, characteristic to be specified
14.5.2 Input impedance <\/td>\n<\/tr>\n
19<\/td>\n14.5.3 Rated source e.m.f., characteristic to be specified
14.5.4 Minimum source e.m.f. for rated distortion-limited output voltage <\/td>\n<\/tr>\n
20<\/td>\n14.6 Output characteristics
14.6.1 Rated load impedance, characteristic to be specified
14.6.2 Output source impedance <\/td>\n<\/tr>\n
21<\/td>\n14.6.3 Output voltage and power (distortion-limited) <\/td>\n<\/tr>\n
22<\/td>\n14.6.4 Regulation
14.6.5 Overload restoring time <\/td>\n<\/tr>\n
23<\/td>\n14.7 Limiting characteristics
14.7.1 Overload source e.m.f.
14.7.2 Short-term maximum output voltage and power <\/td>\n<\/tr>\n
24<\/td>\n14.7.3 Long-term maximum output voltage and power <\/td>\n<\/tr>\n
25<\/td>\n14.7.4 Temperature-limited output power <\/td>\n<\/tr>\n
26<\/td>\n14.8 Characteristics of protection circuits
14.8.1 General
14.8.2 Protection against potentially damaging combinations of output voltageand current <\/td>\n<\/tr>\n
27<\/td>\n14.8.3 Characteristics of d.c. offset protection circuits <\/td>\n<\/tr>\n
28<\/td>\n14.9 Sustaining-time for rated (distortion-limited) output voltage or power
14.9.1 General <\/td>\n<\/tr>\n
29<\/td>\n14.9.2 Characteristic to be specified
Table 1 \u2013 Different rated total harmonic distortion and rated distortion-limitedoutput power specifications for the same amplifier <\/td>\n<\/tr>\n
30<\/td>\n14.9.3 Method of measurement
14.10 Gain
14.10.1 Voltage gain and e.m.f. gain
14.10.2 Maximum e.m.f. gain
14.10.3 Attenuation characteristic of the volume control <\/td>\n<\/tr>\n
31<\/td>\n14.10.4 Attenuation characteristic of balance controls for multi-channel equipment <\/td>\n<\/tr>\n
32<\/td>\n14.11 Response
14.11.1 Gain-frequency response
14.11.2 Gain-limited effective frequency range <\/td>\n<\/tr>\n
33<\/td>\n14.11.3 Distortion-limited effective frequency range
14.11.4 Phase-frequency response
14.12 Amplitude non-linearity
14.12.1 General
14.12.2 Rated total harmonic distortion, characteristic to be specified <\/td>\n<\/tr>\n
34<\/td>\n14.12.3 Total harmonic distortion under standard measuring conditions
14.12.4 Total harmonic distortion as a function of amplitude and frequency <\/td>\n<\/tr>\n
35<\/td>\n14.12.5 Harmonic distortion of the nth order under standard measuring conditions <\/td>\n<\/tr>\n
36<\/td>\n14.12.6 Harmonic distortion of the nth order as a function of amplitude and frequency
14.12.7 Modulation distortion of the nth order (where n = 2 or n = 3) <\/td>\n<\/tr>\n
38<\/td>\n14.12.8 Difference-frequency distortion of the nth order (where n = 2 or n = 3) <\/td>\n<\/tr>\n
39<\/td>\n14.12.9 Dynamic intermodulation distortion (DIM) <\/td>\n<\/tr>\n
40<\/td>\nTable 2 \u2013 Distortion components due to dynamic intermodulation distortion fallingin the frequency range up to 20\u00a0kHz <\/td>\n<\/tr>\n
41<\/td>\n14.12.10 Total difference frequency distortion <\/td>\n<\/tr>\n
42<\/td>\n14.12.11 Weighted total harmonic distortion <\/td>\n<\/tr>\n
43<\/td>\n14.13 Noise
14.13.1 Characteristic to be specified
14.13.2 Method of measurement <\/td>\n<\/tr>\n
44<\/td>\n14.14 Hum
14.14.1 General
14.14.2 Characteristics to be specified
14.14.3 Method of measurement <\/td>\n<\/tr>\n
45<\/td>\n14.15 Balanced inputs and outputs
14.15.1 Balance of the input <\/td>\n<\/tr>\n
46<\/td>\n14.15.2 Overload (distortion-limited) peak-to-peak common-mode input voltage
14.15.3 Balance of the output <\/td>\n<\/tr>\n
48<\/td>\n14.16 Cross-talk and separation in multi-channel amplifiers
14.16.1 Characteristics to be specified
14.16.2 Method of measurement <\/td>\n<\/tr>\n
49<\/td>\n14.17 Gain and phase differences between channels in multi-channel amplifiers
14.17.1 Gain difference <\/td>\n<\/tr>\n
50<\/td>\n14.17.2 Phase difference
14.18 Dimensions and mass, characteristics to be specified <\/td>\n<\/tr>\n
51<\/td>\nFigure 1 \u2013 Example block diagram for multi-channel amplifier <\/td>\n<\/tr>\n
52<\/td>\nFigure 2 \u2013 Arrangements for the Class D amplifier <\/td>\n<\/tr>\n
53<\/td>\nFigure 3 \u2013 Arrangements for measuring input impedance <\/td>\n<\/tr>\n
54<\/td>\nFigure 4 \u2013 Oscillogram when measuring overload restoring time <\/td>\n<\/tr>\n
55<\/td>\nFigure 5 \u2013 Protection against potentially damaging combinations of output voltage and current <\/td>\n<\/tr>\n
56<\/td>\nFigure 6 \u2013 Arrangement for combining two input signals
Figure 7 \u2013 Frequency spectrum below 30\u00a0kHz of the signal formeasuring dynamic intermodulation distortion <\/td>\n<\/tr>\n
57<\/td>\nFigure 8 \u2013 Arrangement for measuring the balance of a balanced input
Figure 9 \u2013 Arrangement for measuring the internal impedance balanceof a balanced output
Figure 10 \u2013 Arrangement for measuring the voltage symmetry of a balanced output <\/td>\n<\/tr>\n
58<\/td>\nAnnex\u00a0A (informative)Balanced interfaces <\/td>\n<\/tr>\n
59<\/td>\nAnnex\u00a0B (informative)Specification of a multi-channel amplifier
Figure B.1 \u2013 Block diagram for a 5.1 channel surround amplifier <\/td>\n<\/tr>\n
60<\/td>\nFigure B.2 \u2013 Block diagram for a 5 channel surround amplifier <\/td>\n<\/tr>\n
61<\/td>\nBibliography
Figures
Tables <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Sound system equipment – Amplifiers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2013<\/td>\n64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":228782,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[638,2641],"product_tag":[],"class_list":{"0":"post-228778","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-160-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/228778","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/228782"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=228778"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=228778"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=228778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}