Page #9
MANUFACTURER
SPEED
BASS (TURNOVER)
TREBLE (ROLLOFF)
=================================================================================================
Riverside 33 400 -12
Renaissance 33 Lp -12
Stradivari 33 Lp NAB
Supraphone 78 400 FLAT
Technicord 78 700 -12
Telefunken 78 400 -5
Tempo 33 RIAA NAB
Transcriptions(many pre-WWII) 33/78 RIAA FLAT
Transcriptions(vertical-old) 33 300 -5
Transcriptions(vertical-NAB) 33 400 NAB
Transradio 33 Lp NAB
Ultraphone 33/78 400 FLAT
Urania-old (up to XTV20386) 33 RIAA NAB
Urania-later (<E2KP9607) 33 400 -12
Urania-late 1954 (>E2KP9607) 33 RIAA RIAA
Vanguard (411-422, 6000-6018, 7001-7011, 33 Lp NAB
8000-8004, (up to XTV20386)
Vox (up to XTV20386), PL8400)# 33 RIAA NAB
War Department-Special Services - 12" 33 700 -5
Westminster (EO matrix) 33 700 10
Westminster (up to E2KP9607) 33 400 -12
Westminster
(up to XTV20386) 33 Lp NAB
Victor All See RCA-Victor See RCA-Victor
Vitaphone(motion picture) 33 300 FLAT
Vocalion(electrical) 78 300 FLAT
Western Electric(early transcripions) 33 300 FLAT
Zonophone 78 300 FLAT
Zonophone (early) 71.29 FLAT FLAT
RIAA, Ortho, New Ortho, New NARTB, New All RIAA RIAA
AES used on recordings since 1955
Notes:
*
On some recordings with very thin bass, such as 45 rpm EP's and acoustics, 700 Hz Turnover
may be used with appropriate rumble filter.
**
Sometimes, one side has old matrix number, the other new. There are two Eqs.
#
These are approximate record numbers circa adoption of RIAA
Sources:
McIntosh Laboratory, C-8, C-22 Manuals.
High Fidelity Magazine, Dialing Yor Discs, 1953-57.
Fisher Master Audio Control 80-C operating manual.
Pickering Record Compensator manual.
Packburn 323A operating manual.
Source Engineering Specialist Preamplifier operating manual.
