Naim Audio NAP S1 - Manual (Page 8)

2 . 2 N A C S 1 C O N N E C T I O N P A N E L
E2378
2 . 3 N A C S 1 A U D I O O U T P U T S A N D C O N N E C T I O N S
The NAC S1 preamplifier is fitted with two pairs of analogue stereo audio outputs: one pair of 4-pin
DIN sockets and one pair of balanced XLR sockets. A slide switch on the connection panel enables
the selection of the XLR, DIN or both output sockets.
If the NAC S1 is to be used with a Naim 500 Series or Classic Series power amplifier (most likely
a NAP 500 or NAP 300), the left and right DIN output sockets should be connected to the power
amplifier channel 1 and 2 inputs respectively using Naim 4-pin DIN to XLR interconnect cables.
Your Naim retailer will be able to supply appropriate cables. The output socket switch should be
in the DIN position.
If the NAC S1 is to be used with a pair of NAP S1 power amplifiers, the left and right balanced XLR
output sockets should be connected to the left and right power amplifier inputs using the XLR to
XLR interconnect cables supplied with the power amplifiers. If longer cables are required your
Naim retailer will be able to provide cables of the desired length. The output socket switch should
be in the BAL position.
If the NAC S1 is to be used with both Classic Series power amplification and a pair of NAP S1 power
amplifiers simultaneously, the left and right balanced XLR output sockets should be connected to
the left and right NAP S1 inputs using XLR to XLR interconnect cables. The the left and right DIN
output sockets should be connected to the Classic Series power amplifier channels 1 and 2 inputs
respectively using Naim 4-pin DIN to XLR interconnect cables. The NAC S1 output socket switch
should be in the DIN+BAL position.
DIN inputs: 1, 2 & 3
Phono inputs: 4, 5 & 6
Upper sockets: Left
Lower sockets: Right
Outputs:
XLR: balanced
DIN: unbalanced
Control:
RJ45: CAN bus x 3
RS232 x 1
Jack: Trigger in x 1
Trigger out x 2
IR in x 1
USB: Firmware update
Balanced XLR inputs:
7 & 8
Mains power and fuse
Input indicator
Output socket
selection switch
Auxiliary signal ground
connector
Power switch
2 . 0 N A C S 1 P R E A M P L I F I E R
Each of the five NAC S1 inputs can be independently adjusted for input gain. Input gain
adjustment enables signal levels from different source components to be compensated so that
switching inputs is less likely to require preamplifier volume adjustment. Adjustment of input
gain is described in Section 4.2.
A signal ground terminal on the NAC S1 connection panel enables the termination of specialist
interconnect cables with auxiliary ground conductors. Contact your Naim retailer for advice on
using such interconnect cables.
Always use interconnect cables intended for high-end audio applications to connect source
equipment to the NAC S1 inputs. Naim interconnect cables will always provide the best results.
Input gain and mapping set
up
1 4 1 5