Millennia LPE-2, Руководство пользователя

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LPE-2
Telefunken 400 0
Transcriptions various, typical 500 -16
Ultraphone 400 0
Urania most COL* or 750 -16
Urania newer 400 -12
Vanguard 411-22, 6000-18, 7001-7011,
8000-8004
COL* or 750 -16
Velvet Tone acoustics to 8/29 300 -16
Vitaphone 950 -18.5
Vitaphone motion picture 300 0
Vocalion electricals 300 0
VOX 500 or 750 -16
War Department 12” Special Services 700 -5
Western Electric early transcriptions 300 0
Westminster pre-1956 500 or 750 -16
Westminster “AES” printed on jacket 400 -12
Westrex 200 0
Zonophone early 71.29 RPM 0 0
most 300 0
Per NAB standards, the nominal speed of a 78 RPM record is precisely 78.26 RPM +/- 0.5%.
*COL — Some recordings were compensated with a rolloff of -16 dB @ 10 kHz and a modi-
fied 500 Hz turnover that requires an additional VLF boost using a 100 Hz shelving filter @
+3.0 dB. Often referred to as a "Columbia curve," some sources list this at 300 Hz turnover
with similar HF and VLF characteristics. Better advice: trust your ears.