JOPLIN M
K
II
384
k
H
z
/32bit ANALOG-TO-DIGITAL CONVERTER
REVISION P
R
A – FEBRUARY 2015
Copyright © 2015, M2Tech Srl
48
M2Tech
www.m2tech.biz
For this reason, The three lower resolution settings are available in two flavours: with
dithering and without dithering. The dither is a small random noise which is added to
the sound before reducing the resolution. The dither turns the distortion due to the
resolution cut into white noise, which is far more pleasant to the ear.
When SNR is a main goal and a little distortion can be tolerated, dither should be
avoided. On the other hand, when the best sound is desired at the cost of a little
added noise, dither is mandatory.
It should also be considered that the S/PDIF, AES/EBU and Toslink™ outputs can
only transfer 24 bits per channel. Thus, the “24
D
” value should be chosen to obtain
the best audio performance out of the digital outputs.
8.3.5. Equalization curve
The
JOPLIN MKII
has been conceived to be used with a wide variety of different
sources: tuners, recorders, turntables. Some of these sources require an equalization
to enjoy their sound. The
JOPLIN MKII
is provided with a wealth of equalization curves
to satisfy even the most requiring vinyl collector or reel-to-reel tapes enthusiast. Of
course, equalization can be disabled when the source doesn’t require it. This is
obtained by choosing the “FLAT” value for this parameter.
16 different curves for microgroove LP’s, 7 curves for 78rpm, 4 curves for reel-to-reel
tapes are available. Please see Section 9 for more details on equalization.
