Musical Fidelity X-DAC V3 User manual

X-DAC
V3
Issue 1 April 2004
DIGITAL to ANALOG
CONVERTOR
Instructions for use
SPECIFICATIONS
Musical Fidelity reserves the right to make improvements which
may result in specification or feature changes without notice.
DAC architecture24 bit Delta-Sigma (bitstream)
Dual differential
8 times oversampling 192kHz
Sampling frequencies8 to 108kHz
Data types16, 20, 24 bit word lengths
InputsRCA 75 Ohms (S/PDIF), TOSLINK optical
OutputsRCA left & right audio,
RCA digital loop out
Frequency response10Hz to 20kHz +0/-0.2dB
Signal / noise ratio>121dB "A" weighted ref. full output
Total harmonic distortion<0.002% 10Hz to 20kHz
Total correlated jitter<135 pS
Channel separation>110dB 20Hz to 20kHz
Linearity<0.1dB down to -96dB
Audio output at digital 0dB2.2VRMS at 1kHz nominal, 50 Ohms impedance
Power requirement12-0-12Volts AC 500mA
(via mains adaptor supplied)
Dimensions180mm (7.1") wide
88.2mm (3.5") high including feet
208mm (8.2") deep
WeightsUnit, net :2.5 kg(5 lbs 8 oz)
Adapter, net :0.45 kg(1 lb)
Total packed :3.1 kg(6 lbs 13oz)

X-DAC
V3
Issue 1 April 2004
Introduction
Thank you for purchasing the X-DAC Version 3 digital - to - analog convertor.
We sincerely hope that it will bring you many years of outstanding listening pleasure.
Your X-DAC
V3
will convert digital data from any CD or DVD source to analog audio,
but not data from AC3, Minidisc, or MP3 formats.
Installation Precautions
Your new X-DAC
V3
is designed and built to provide trouble-free performance, but as
with all electronic devices, it is necessary to observe a few precautions :
nDo not use the X-DAC
V3
near water. The unit must not be exposed to
dripping or splashing and no objects filled with liquids, such as vases, must
be placed on the unit.
nKeep the X-DAC
V3
away from heat such as radiators. No naked flame
sources, such as lighted candles, should be placed on the unit.
nOnly use the mains adaptor provided. The use of other adaptors could
seriously damage your X-DAC
V3
.
nPlace all connecting cables where they are not likely to be walked on, or
trapped by items placed on them.
This Hi-Fi product has been tested to ensure that its operation is not adversely affected
by normal background levels of Radio Frequency Interference (R.F.I.), and that it does
not itself generate excessive amounts of interference.
However, if a problem persists, please contact your Musical Fidelity agent.
Never open the case of the X-DAC
V3
yourself, as this will invalidate the guarantee.
There are no user adjustments inside. Please refer all service work to an authorised
Musical Fidelity agent.
This model has been designed so that it may be left on indefinitely, but please note that
the mains adapter may become warm to the touch - this is normal.
Connections
All connections should be made before the mains adaptor is plugged in.
Connect the digital output from your CD or DVD player, or other digital source to one
of the X-DAC
V3
’s inputs.
The DAC has two inputs, one an optical “Toslink” and the other an S/PDIF* co-axial
RCA socket. Either one is automatically selected by the presence of a digital signal,
but if both are accidentally connected at the same time, priority is given to the first of
the two inputs presented.* Sony / Philips Digital Interface Format
Using good quality co-axial audio leads, connect left and right audio outputs from the
analogue output sockets on the back panel of your X-DAC
V3
to any line level input in
your amplifier system, for example the CD or auxiliary sockets.
The co-axial RCA digital output can also be connected to suitable external digital
equipment if required.
Now plug the DC connector lead from the power supply unit into the X-DAC
V3
’s inlet
socket, and plug the power supply itself into a convenient wall mains outlet. The
power indicator LED on the front panel will light confirming that the unit is now ready
for use.
Operation
Start the required digital source playing.
The LOCKEDdata indicator LED on the front panel will light to show that the DAC
has sucessfully locked on to the incoming data stream, and either the CO-AXIALor
OPTICALLED shows which input has been selected.
Adjust the volume control on your audio system to obtain the preferred sound level.
If there is no incoming digital data to either input, the CO-AXIALand OPTICAL
LEDs will flash alternately, and the LOCKEDLED will flash more rapidly.