ATC CDA2 User Manual page 10

SIACD
SIACD
D e s c r i p t i o n
The SIACD integrated amplifier/DAC/CD Player
has been designed to partner ATC passive
loudspeaker systems and also other manufacturer's
loudspeaker systems. It is designed as a simple yet
versatile one-box solution for D-A conversion, CD
playback, pre and power amplification duties.
It incorporates an internal CD player system, 2 x
stereo line level inputs on RCA phono sockets,
together with a front panel mounted 3.5mm Jack
standby
socket input, 1 x digital SPDIF optical Toslink input,
1 x digital SPDIF coaxial input on an RCA phono
socket, and a USB digital audio input on a USB-B
socket. There is a single pair of stereo power amp
outputs on 4mm binding posts, a stereo line level
output on RCA phono sockets, and a front panel
mounted headphone output on a 6.35mm/0.25"
jack socket.
Amplifier mains power is connected and controlled
via a connector and push button on the rear panel.
Input selection is achieved via a front panel push
button, and output volume adjustment via a
precision potentiometer.
All SIACD functions are duplicated on the included
ATC SCA R2 remote control handset.
Diagram 4 - SIACD rear panel and connection sockets
SIACD
Stereo CD
Amplifier
Designed and manufactured by
Acoustic Transducer Company
Gloucestershire Gl6 8HR
England
RETURN TO
MANUFACTURER
FOR DISPOSAL
THERE ARE NO USER SERVICEABLE PARTS INSIDE
8
SIACD
Compact Disc Amplifier
aux in
right output
line output
left
right
Acoustic Transducer Co. Is a trading name and
CD P la yer & Integ rated A mp lif ier
I n p u t s
The preamp/DAC stage features two line level stereo analogue inputs, and three
digital inputs. Both analogue inputs are equipped with rear panel mounted, RCA/
phono sockets and are labelled aux 1 and aux 2. The aux 2 input also features a front
panel mounted 3.5mm jack input for simple connection to portable music players.
The front panel mounted 3.5mm jack input is a switched type, and any connections
made to it will override connections made to the aux 2 rear RCA phono sockets.
The signal is present on the centre conductor of an unbalanced input and the signal
return is made via the screened outer. The tip of a 3.5mm jack plug carries the left
channel, the ring carries the right channel and the body is the signal return for both
left and right channels. If there is any hum present on the inputs, this must be traced
to the source and not suppressed by the removal of screens or earths. Removal of
the screen on an unbalanced input will result in uncontrollably loud hum.
All the analogue inputs are line level sensitivity and are electrically identical, meaning
that a line level signal from any source can be connected to any input.
The Digital USB and SPDIF inputs are mounted on the rear panel. Connection to
the Digital inputs can be either Coaxial via RCA phono plugs, Optical via Toslink
connectors or USB via a USB-B plug. Digital audio over USB is not as tolerant of
long cable lengths as other digital audio connections. Typically, 3m or 10 feet is the
longest cable length that is recommended.
The input sockets are illustrated in Diagram 4.
!
WARNING
fuse:
THIS EQUIPMENT
MUST BE EARTHED
115V : T10AH
CAUTION
230V : T5AH
RISK OF ELECTRIC SHOCK
DO NOT OPEN
I
fuse
O
auxiliary inputs
2
left
MAINS INPUT
50/60 Hz
POWER
right
CONSUMPTION
300VA MAX.
Is the registered Trade Mark of Loudspeaker Technology Ltd.
volume
Input
left output
digital inputs
1
coaxial
optical
headphones
serial no.
usb