on 3/25/07 3:25 PM US/Central, Richard L. Hess at arclists@xxxxxxxxxxxxxxx
wrote:
We have four possible combinations of track width and EQ if we stick
with standards:
NAB Head, NAB Eq (assumed to be standard)
NAB Head, IEC Eq
DIN Head, IEC Eq (assumed to be standard)
DIN Head, NAB Eq
From 5.2.3.3 of Choosing and Using MRL Calibration Tapes, [etc.]:
Effect of Track Width on Two-track Recorders:
There are three different "standard" widths for two tracks recorded on 1/4
inch (6.3mm) tape; the Ampex Standard (the original two-track de facto
standard), 1.9mm, the NAB standard (used by almost everyone else but Ampex),
2.1mm; and the IEC "stereo" format, 2.8mm. Put more cynically, the track
widths for two tracks on 1/4 inch tape are _not_ standardized.
--
Parker Dinkins
MasterDigital Corporation
Audio Restoration + CD Mastering
http://masterdigital.com