AllegroSound



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Tape Replay
EQ & Head
Standards




30 ips, 76 cm/s IEC2
AES
(1981) current standard      ∞ 17.5 µs
30 ips, 76 cm/s CCIR
IEC1
DIN
(1953-1966)
(1968)
(1962)
     ∞ 35 µs
15 ips, 38 cm/s IEC1
CCIR
DIN
BS
(1968) current standard
(1953)
(1962)
     ∞ 35 µs
15 ips, 38 cm/s NAB
EIA
(1953) current standard
1963
3180 µs 50 µs
7.5 ips, 19 cm/s IEC1
DIN(studio)
CCIR
(1968) current standard
1965
1966
     ∞ 70 µs
7.5 ips, 19 cm/s IEC 2
NAB
DIN(home)
EIA
RIAA
(1965) current Standard
(1966)
(1963)
(1968)
3180 µs 50 µs
7.5 ips, 19 cm/s Ampex (home)
EIA (proposed)
(1967)      ∞ 50 µs
7.5 ips, 19 cm/s CCIR
IEC
DIN
BS
(up to 1966)
(up to 1968)
(up to 1965)
     ∞ 100 µs
3.75 ips, 9.5 cm/s IEC2
NAB
RIAA
(1968) current standard
(1965)
(1968)
3180 µs 90 µs
3.75 ips, 9.5 cm/s DIN (1962) 3180 µs 120 µs
3.75 ips, 9.5 cm/s DIN (1955-1961)      ∞ 200 µs
3.75 ips, 9.5 cm/s Ampex (home)
EIA (proposed)
(1967)      ∞ 100 µs
3.75 ips, 9.5 cm/s IEC (1962-1968) 3180 µs 140 µs
3.75 ips, 9.5 cm/s Ampex (1953-1958) 3180 µs 200 µs
17/8 ips, 4.75 cm/s IEC
DIN
(1971) current standard
(1971)
3180 µs 120 µs
17/8 ips, 4.75 cm/s IEC
DIN
RIAA
(1968-1971)
(1966-1971)
(1968)
1590 µs 120 µs
17/8 ips, 4.75 cm/s
Cassette
IEC Type I 1974 current standard 3180 µs 120 µs
17/8 ips, 4.75 cm/s
Cassette
DIN Type I (1968-1974) 1590 µs 120 µs
17/8 ips, 4.75 cm/s
Cassette
Type II and IV (1970) current standard 3180 µs 70 µs
















quid pro quo

AllegroSound
−  Established 1973  −
"love what you listen with"
Los Angeles, California USA
Rick@AllegroSound.com


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AllegroSound et al assumes no responsibility for use or misuse of products, services, info, etc.
design & original content ©AllegroSound, los angeles, california, usa. all rights reserved.

AllegroSound
−  Established 1973  −
"love what you listen with"
Los Angeles, California USA
Rick@AllegroSound.com
telephone 323.960.5014

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design and original content ©AllegroSound, los angeles, usa. all rights reserved.