MSB Technology Nelson LINK DAC III User Manual page 9

Analog Filter Change
The analog filters in the output stage can be adjusted. The Nelson is normally
configured with the filters disabled. This does not comply with the common prac-
tice of rather heavily filtering the outputs to achieve perfect measurements. It is
instead set up to sound better, at the expense of perfect measurements. For those
who prefer greater dynamics and attack, leave the jumpers from positions 2 and 5 of
J16 out. They should be placed on positions 1 and 4 for safe keeping. For a
smoother sound, try moving the jumpers from 1 to 2 and from 4 to 5.
Ground
L Filter 1
L Filter 2
Ground
R Filter 1
R Filter 2
Ground
+8V, -8V
N
ORMAL
Other Options
Headers J18 and J19 are occupied by the upsampling board. Should this board
need to be removed for some reason, jumpers can be installed to allow the DAC to
operate. The standard jumper positions are shown below for reference. Any
missing jumpers will prevent the LINK III from working.
DSP Headers
S/PDIF (inverted)
Digital Active
N
HDCD Option
The HDCD option can be installed in the NELSON with just two limitations. The
upsampling rate must be set at 96k not 132k. Secondly, the DAC will not work with
192K sources with the HDCD option installed.
J16
1
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
2
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
3
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
4
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
5
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
6
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
7
8
F
ILTERS
J18
Ground
1 2 3 4 5 6 7 8 9
S/PDIF
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
Ground
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
Option 1
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
192 kHz
Ground
ORMAL POSITION OF
Ground
L Filter 1
L Filter 2
Ground
R Filter 1
R Filter 2
Ground
+8V, -8V
R
J19
1
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
2
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
3
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
4
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
5
1 2 3 4 5 6 7 8 9 0
6
7
8
LINK III J
9
J16
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9 0
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
F
EDUCED ILTERING
Ground
Data
Bit Clock
L/R Clock
M Clock
Data Flag
Ground
UMPERS
1
2
3
4
5
6
7
8