Bedienungsanleitung Naim NAP 250 DR (Seite 19 von 44) (Englisch)

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E17

SUPERNAIT Integrated Amplifier

19 SUPERNAIT Introduction and Installation

The Supernait should be installed on a dedicated equipment stand intended for the

purpose. Do not stand it directly on top of another item of equipment. Care should

be taken to ensure that it is level. The amplifier should be installed in its final location

before connecting cables or switching on. Ensure that the volume is turned down before

switching on.

A variety of power supply upgrade, alternative preamplifier and alternative or additional

power amplifier options are possible for the Supernait. Diagrams illustrating the connection

of some of these are shown in Section 20.

The following Section 19 paragraphs describe installation features and functions specific

to the Supernait. Operational features common to all preamplifiers and integrated

amplifiers are described in Section 28.

19.1 Source Input Selection and Assignment

The input selection buttons arranged along the upper

bank select the source signal to be routed to the power

amplifier and the loudspeakers. The six buttons are labelled

cd, tuner, tape, av, aux1 and aux2.

Each input button may be assigned to analogue inputs

(via DIN, RCA Phono or 3.5mm jack sockets), or to digital

inputs via RCA Phono coaxial, “Toslink” or “mini-toslink”

optical sockets. The default settings and the assignment

setup procedure are detailed in Sections 19.2 and 19.3

respectively.

19.1.1 Analogue Inputs

The first four selection buttons (cd, tuner, tape and av) can

each be assigned to both a DIN input socket and a pair of

RCA Phono input sockets on the rear panel. The DIN and

Phono sockets for each input are internally wired in parallel

and should not be connected simultaneously.

The aux1 and aux2 selection buttons can each be

assigned to a pair of RCA Phono input sockets and a DIN

input socket on the rear panel respectively.

Note: The aux2 DIN input socket carries a power supply

output voltage appropriate for a Naim phono preamplifier.

19.1.2 Digital Inputs

The Supernait additionally provides four S/PDIF digital input

sockets - 2 RCA Phono coaxial and 2 “Toslink” optical - on

the rear panel. Any input selection button can be assigned

to one of these sockets.

Note: The digital inputs support stereo PCM audio only. If

the digital signal contains anything other than stereo PCM

audio (Dolby or DTS encoded programme material for

example) all outputs will be muted.

19.1.3 Front Panel Combined Input

An auxiliary front panel input socket is also provided. This

socket is a 3.5mm analogue “jack” input combined with

a digital “mini-Toslink” optical socket. The analogue input

is wired internally in parallel with the rear panel aux1 input

and the two must not be connected simultaneously.

The front panel input (analogue or digital) is automatically

selected (and the aux1 selection button automatically

assigned to it), whenever a plug is inserted in the socket.

Note: The Supernait is able to differentiate a digital source

from an analogue one at the front panel input if the digital

source is working when the plug is inserted.

Input selection will revert to that previously selected when

the front panel input plug is removed.

19.2 Default Input Selection Button and Input Socket Assignment

Input Selection Input Socket Input Socket

Button Assignment Type

cd Analogue Input 1 DIN/RCA Phono

tuner

Analogue Input 2 DIN/RCA Phono

tape

Digital Input 1 RCA Phono Coax

Analogue Input 4 DIN/RCA Phono

aux1

Digital Input 2 “Toslink” Optical

(See Note)

aux2

Analogue Input 6 DIN (with Naim phono stage power supply)

Note: Any plug inserted into the front panel socket will automatically provoke selection of

this input (digital or analogue) and will automatically assign it to the aux1 selection button.

Operational features

common to all

preamplifiers and

integrated amplifiers

are described in

Section 28

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