M2TECH JOPLIN MKII, Руководство пользователя

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JOPLIN M
K
II
384
k
H
z
/32bit ANALOG-TO-DIGITAL CONVERTER
REVISION P
R
A – FEBRUARY 2015
Copyright © 2015, M2Tech Srl
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M2Tech
www.m2tech.biz
actually the same curve as the RCA’s “New Orthophonic”, so it can be used to play
RCA records claiming the use of that curve also.
During the years, RIAA made some amendments to the curve. The most relevant,
after an indication from IEC, was the addition of a 16Hz high pass to cope with the
rumble produced by warped records or noisy turntables. Not all cutting plants
adopted this amendment and it’s very difficult to tell whether or not it’s been adopted
for a certain pressing, as the curve is always indicated as RIAA.
The
JOPLIN MKII
has not a specific RIAA/IEC curve, but it can be obtained by selecting
RIAA and the high-pass filter at 16Hz (see Section 8.3.7).
9.2.2. AES
AES (Audio Engineering Society) proposed a phono equalization curve back in 1951.
As far as we know, no label explicitly adopted it, but the discerning record collector
may be aware of its use, so it’s been included for completeness.
9.2.3. Angel (ANG)
Angel was a record label incorporated by EMI who produced great records.
9.2.4. Audiophile (AUDP)
Audiophile is known amongst record collectors for her great recordings, on both
78rpm and microgroove LP. Acoustic Sounds proposed the reissue of some