OPERATING INSTRUCTIONS FOR GAMBIT DAC2 24Bit / 192kHz D/A CONVERTER INTRODUCTION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 2
INTRODUCTION
Congratulations on purchasing the Weiss Gambit Series DAC2 D/A Converter !
The DAC2 is a stereo 24 bit / 192khz D/A con-
verter which supports the following conversions:
- Firewire to analog
- AES/EBU to analog
- Firewire to AES/EBU
- AES/EBU to Firewire
Features
• Inputs: There are two Firewire connec-
tors and three AES/EBU (S/PDIF) inputs
on XLR, RCA and Toslink (optical) con-
nectors. There are two Firewire connec-
tors in order to be able to chain more
Firewire based units on a single Firewire
bus. Which of the two Firewire connec-
tors is used for the connection to the
computer is not relevant. The accepted
sampling frequencies are 44.1, 48, 88.2,
96, 176.4 or 192 kHz.
An internal jumper allows to set the
XLR/RCA inputs to the dual wire
AES/EBU scheme in the case of 176.4 or
192kHz sampling rates.
• Outputs: The analog cross-coupled type
balanced outputs can drive complex
loads without stability problems. The
output level is selectable from four dif-
ferent levels for both balanced and un-
balanced outputs. The outputs are bal-
anced on XLR connectors and unbal-
anced on RCA connectors.
In addition to the analog outputs there
are two digital outputs (AES/EBU on XLR
and RCA connectors) which allow to use
the DAC2 as an interface between com-
puter and any other device which has
AES/EBU inputs.
An internal jumper allows to set the
XLR/RCA outputs to the dual wire
AES/EBU scheme in the case of 176.4 or
192kHz sampling rates.
• Sampling Rates, Wordlength: 44.1,
48, 88.2, 96, 176.4, 192 kHz at up to 24
Bits.
• Jitter suppression: Several signal re-
clocking schemes are combined for ex-
tremely high jitter attenuation, making
the DAC2 virtually immune to jitter over
a very wide bandwidth.
• Converters: Eight times oversampling
sigma delta D/A converters are used.
• Software: Drivers for Windows™ and
OSX™ operating systems.
• Power Supply: A non-switching power
supply is used. All sensitive voltages
have their own local regulators. The
standby power supply leaves the Fire-
wire chip powered. This allows to switch
on the DAC2 via the Firewire link. The
Firewire Bus Power is not used by the
DAC2, this allows the DAC2 to be used
with computers which do not supply Bus
Power. The mains voltage can be set to
100..120V or 200..240V.
•
Software features:
The software in the DAC2 allows for level
control (in the digital domain) and for an
insert mode which allows to insert any
external digital device in the signal path.
• Frontpanel controls: Three switches
with corresponding LEDs are used for se-
lecting one out of three input sources,
which are Firewire, AES/EBU, S/PDIF.
The S/PDIF selector selects both RCA
and Toslink inputs. One power switch.
Four LEDS for sampling rate indication.
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