Simaudio Neo 350P Preamplifier - Manual (Page 12)

350P Preamplifier
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12
Rear Panel Connections
Figure 4: Nēo 350P Rear panel
The rear panel will look similar to Figure 2 (above).
There are two (2) pairs of balanced analog inputs on
XLR connectors labeled “B1” and “B2” with their
respective left and right channel connections beside
each other. Immediately below are four (4) pairs of
single-ended analog inputs on RCA connectors
labeled CD, A1, A2/HT and A3/PH. The RCA input
and output connectors on the rear panel have been
color coded: ‘white’ for the left channel and ‘red’ for
the right channel. If your Nēo 350P is equipped
with the optional phono section, the input labeled
‘A3/P’ must be used to connect your turntable
interconnect leads to this preamplifier. If you don’t
have the optional phono section installed, then this
input can be used in the same way as CD, A1 and
A2 inputs. This preamplifier is also equipped with a
single-ended monitor loop; the input and output
connectors for each channel are located to the right
of the four pairs of single-ended analog inputs.
The Nēo 350P premplifier has three pairs of
outputs: 1 pair of balanced XLR’s and 2 pairs of
single-ended RCA’s labeled ‘FIX’ and ‘VAR’, located
next to the monitor inputs and ouputs. The balanced
outputs are designated for output to a power
amplifier equipped with balanced inputs.The ‘FIX’
output is intended as an input to a recording device
such as a cassette tape deck or CD-Recorder Player.
Keep in mind that the output level is fixed and
cannot be adjusted by the 350P’s volume control.
The ‘VAR’ output is designated for output to your
power amplifier(s) with single-ended RCA inputs. If
the power amplifier(s) you’re connecting the 350P
to use balanced inputs, its highly advantageous to
use the 350P’s XLR outputs. This will provide you
with an even better signal-to-noise ratio. Don’t
hesitate to use high quality interconnect cables*.
Poor quality interconnect cables can degrade the
overall sonic performance of your system.
For Nēo 350P’s equipped with the digital input
option, you will find 4 digital inputs labeled D1, D2,
D3 and D4. The D1 input is on an optical Toslink
connector; both the D2 and D3 inputs are on a
S/PDIF connector; the D4 input is on a USB type B
connector.
Below the area reserved for the optional digital
inputs are a series of input/output connectors for
custom type installations: From left to right there
are two (2) “SimLink™” connectors labeled “in” and
“out” on 1/8” mini jacks. Please refer to the next
section entitled SimLink™ for more details. Next,
there’s a 1/8” mini-jack input for use with
aftermarket infrared remote control receivers. Then
there’s a 12V trigger output on a 1/8” mini-jack that
can power up a connected component (with a 12V
trigger input) at the same time that the 350P is
powered up. Next, there’s a full-function bi-
directional RS-232 port for custom integration or
automation on a DB9 connector. Finally on the far
right side is the “AC Fuse” socket cover, the main
power switch (“0”=off, “1”=on) and the IEC
receptacle, labeled “AC Power” for the included AC
power cord.