User Guide

17
Preamplifier
NAC 112x
19. NAC 112x Specification
Input Sensitivities:
75mV, 47kΩ
Overload Margins:
35dB
(all inputs all audio frequencies)
Main Output Level:
0.775V, <50Ω
Tape Output Level:
75mV, 600Ω
Auxiliary Power Outputs:
For Stageline/Prefix phono stage.
Dimensions (H x W x D):
70 x 432 x 301mm
cable
direction
marker
240° 5 to 5 pin DIN
Interconnect Cables
mains input
and fuse
power
to stereo power
amplifiers
to mono
or dual
mono power
amplifiers
for CD5x , Headline or
Stageline. Additional
interconnects required
in 6
(alternative)
to power amplifier with internal power supply
18.2 NAC 112x Rear
in 1
cd
in 2
tuner
in 3
tape
in 4
av
in 5
aux 1
in 6
aux 2
RS232
interface
RC5 in
ch1
-ve
nc
nc
ch2
Inputs 1, 2 & 6
ch1
-ve
ch1
(out)
ch2
(out)
ch2
Inputs 3, 4 & 5
+ve
-ve
+ve
ch1
+ve
ch2
Input 6
(alternative)
signal ground
Note:
The NAC 112x AUX 2 input is provided with two sockets. The
left hand socket, fitted on delivery with a blanking cover, is intended
for use with a Stageline or Prefix RCA Phono stage and incorporates
an appropriate DC power supply. The two sockets must not be used
simultaneously.
power supply
upgrade.
link plug fitted
Note:
The NAC 112x features various technologies to reduce
microphonic effects. Some movement of the board and sockets
when connecting and disconnecting cables is normal.
aux 2/RCA Phono
ch1
ch2
cd/RCA Phono
ch1
ch2
Note:
The RS232/comms interface is an optional upgrade. It can
be specified at time of order or fitted retrospectively. Contact your
local representative or Naim Audio directly for further information.