Audio DAC0.1x User Manual

DAC 0.1x

D/A CONVERTER

OWNER’S INFORMATION

! IMPORTANT SAFETY INFORMATION !

HUMIDITY: DO NOT STORE OR OPERATE THIS UNIT IN AREAS OF HIGH HUMIDITY, OR IN
CLOSE PROXIMITY TO WATER/DAMPINESS. DO NOT EXPOSE THE UNIT TO LIQUID.

EARTHING: THIS PRODUCT MUST BE EARTHED – ENSURE THAT THE MAINS SUPPLY CABLE
IS EARTHED.

SHOCK: INTERNAL OPERATING VOLTAGES ARE LETHAL! DO NOT REMOVE THE TOP
COVER. DO NOT ATTEMPT TO REPLACE THE FUSE WITHOUT DISCONNECTING THE UNIT
FROM THE MAINS SUPPLY.

SAFETY COMPONENTS: INTERNAL FUSES AND OTHER SAFETY COMPONENTS ARE
LOCATED INSIDE THIS UNIT IN ACCORDANCE WITH BS 60065 REQUIREMENTS.

IN THE EVENT OF SAFETY COMPONENT FAILURE, THEY MUST BE REPLACED WITH THE
SAME PART TYPES ONLY
SERVICE TECHNICIAN.

PRECAUTION

Never touch the power cord with wet hands.
Always pull the power cord out by the plug, not by the cord.
Never expose the system to rain, moisture, excessive heat and magnetism.
Never let an inexperienced person repair or reassemble the unit.
Never put anything, especially metal, into the unit.
Never place excessive weight on the unit.

POWER REQUIREMENTS

Power requirements for electrical equipment differ from area to area. Please
ensure that your unit meets the power requirements in your area. The power
requirement for your unit is marked on the serial number plate on the rear panel.

If you are in doubt, please contact your dealer before plugging the unit into the
mains supply!

We declare under our sole responsibility that this product is in conformity with the
following standards or standardized documents:
BS EN 60065 in accordance with the regulations 73/23/EEC, 89/336/EEC (from 1

1997).

CE 94

Peter Qvortrup
Director
Audio Note (UK) Limited
25 Montefiore Road,
Hove,
East Sussex
BN3 1RD
United Kingdom
Tel: [phone]
Fax: [phone]

. SUCH REPLACEMENT MUST BE CARRIED OUT BY A QUALIFIED

CE DECLARATION OF CONFORMITY

st

January

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TABLE OF CONTENTS

3 TECHNOLOGY, UNPACKING & INSTALLATION
4 CONNECTIONS
5 OPERATION
6 COMPUTER SETUP FOR USB INPUT
7 SPECIFICATIONS

TECHNOLOGY

Extensive research into the fundamental properties of the data stream itself have
shown beyond doubt that regardless of the theoretical and measurable advantages of
the signal manipulation employed in all currently available digital products, such as
higher over sampling, noise shaping, re-clocking or jitter reduction, the result is this: all
these corrective measures greatly interfere with the critical time domain requirements
of the signal. Current theory is based on an assumption that music is similar to book
keeping data which of course it is not. Music is a time continuum from beginning to end,
which when broken is irreparably damaged and no amount of clever manipulation can
ever restore it to its original time-frequency-amplitude duration or relationship,
regardless of what the theorists may tell you.

The DAC uses the revolutionary and currently exclusive Audio Note digital
technology dubbed 1x oversampling™ direct from disc™ circuit topology. The
technology in essence dispenses with all the correction measures inherent in all other
D/A converters and presents the digital signal directly to the converter after
reformatting. In other words, all products in the Audio Note DAC range have no
oversampling, no jitter reduction, no noise shaping and no re-clocking. Having removed
all the digital filtering that is part of the oversampling, we have also dispensed with all
filtering in the analogue domain to further retain good wide band phase-frequency and
dynamically coherent behaviour. The end result being a reproduction more reminiscent
of master tape in quality, with greater differentiation and contrast between different
recordings.

DAC0.1x converter uses a Philips TDA1543 stereo D/A converter chip and features
a 6111WA valve zero feedback output stage.

UNPACKING & INSTALLATION

Please take care when unpacking the DAC0.1x. We recommend that you store the
packing materials in case the unit requires shipping at a later date.

Next, select a suitable location for the unit, ensuring that adequate ventilation is
provided (the valves generate a fair amount of heat). In the interest of safe, reliable
operation, situate the DAC0.1x well away from dampness or direct sunshine.
Worthwhile sonic improvements may be obtained by locating the unit on a specifically
designed audio component support system; we tend to prefer natural materials such as
wood.

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