Oracle DAC 1000
D/A Converter + Pre-amplifier
ORACLE AUDIO TECHNOLOGIES
OWNER'S MANUAL
CAUTION!
Oracle DAC 1000 voltage is preset according to the country used.
If you move after purchasing the DAC 1000, please contact Oracle Audio Technologies to modify your voltage
wiring for proper use.
To reduce the risk of fire or electrical shock, do not put the DAC 1000 in water, humidity or near a heat source. Do
not remove the top cover , since they are not serviceable parts.
Oracle Audio will not under any circumstances be liable for any incidental arising from improper use of the
Dac 1000.
* When purchasing your Oracle Audio DAC 1000;
** The switches on the rear panel indicated "output and record" are preset in variable / bypass position.
*** It is prohibited to connect the DAC 1000 and the power amplifier in "fixed mode".
**** The connection should be at the "variable mode" position.
UNPACKING:
Open the box and carefully remove the protective foam from your unit.
Remove the plastic bag.
Included:
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Oracle Dac 1000 D/A converter + pre-amplifier
Power cord
Remote control
Owner's manual
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FEATURE
1. High-End Preamplifier
The DAC 1000 is specially designed to guarantee the full fidelity of high-end sound reproduction for almost a life
time usage. High quality Digital volume control and dual monaural design provide excellent separation with
pin-point imaging. Should you want to use DAC 1000 as a pure D to AConverter with a fixed output, a switch on the
rear panel makes this change possible by selecting ‘fixed’ mode instead of normal ‘variable’ mode.
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Analog Input
1 XLR Balanced Input
1 RCA Unbalanced Input
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Analog Output (Main Out)
1 XLR Balanced Output
1 RCA Unbalanced Output
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Full Class A Output Stage
High Quality Digital Volume Control
Separate Transformers for the Digital and Analog stages
2. Selectable, Upsampling Digital to Analog Converter
Oracle DAC 1000 is a dedicated stand-alone D/A Converter.The DAC section has an upsampling function up to
192kHz (24Bit) which is selectable by the user.
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Digital Input
2 AES/EBU (Balanced)
2 Coaxial (RCA)
2 Optical (Toslink)
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24 Bit /192 kHz, Delta-Sigma DAC
Custom designed digital filter
Specially designed digital filtering circuitry is used in DAC 1000 to enhance the quality of sound by
providing a cleaner signal with an excellent signal to noise ratio.
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PLL Circuit
For a jitter-free signal, special PLL circuit is applied in the Digital section.
3. Upsampled (24Bit/96kHz) Digital Recording Output
The DAC 1000 is equipped with 4 digital outputs for direct digital recording. You can easily make high quality
recordings of your favorite digital sources by connecting the cable between DAC 1000 and your digital recorder.
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Digital Output
1 Balanced AES/EBU
2 Coaxial
1 Optical Toslink
4. Surround (Input for surround processor)
DAC1000 provides a ‘Surround’ input for a simple connection to your surround processor.
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INPUT / OUTPUT PORTS
1. Connection of DAC 1000 D/A converter + pre-amplifier
On the rear of DAC 1000, there are 2 Analog Outputs (1 Balanced, 1 Unbalanced) , 2 Analog Inputs (1 Balanced,
1 Unbalanced), 6 Digital Inputs and 4 Digital Outputs and the analog ‘Surround’ input.
Also included is a 12V trigger output.
(fig 1 The Rear Panel)
Note: Be sure to turn the power off when you change mode switches " Output " and " record".
1) Analog Input
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BALANCED
XLR Balanced input is used for the finest quality sound. Connect your equipment which has a
XLR/Balanced Output by a Balanced Interconnect.
UNBALANCED
RCA Unbalanced input can be plugged into this input. Output from FM Tuner, Tape-Out, VCR-Out etc.
can be connected into this input.
SURROUND
For home theater use only. Connect main out from your surround processor with this ‘Surround’ input.
When in Surround mode, the volume control of the DAC 1000 is not valid. You should control the volume
from the surround processor.
*The display window on the front panel shows “SURROUND MODE”.
Another press of ‘Surround’ button will bring you back to normal DAC 1000 status.
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2) Analog Output
XLR Balanced & RCA Unbalanced outputs are provided for the connection of power amplifiers. Both outputs can
be used at the same time.
* We recommend XLR Balanced connection for better performance.
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FIXED/VARIABLE switch*
The DAC 1000 is designed primarily to be used as a DAC/Preamp in which case the switch should be in
‘VARIABLE’ mode (default mode).
But, for those who already own a high-end preamplifier, the DAC 1000 can be switched to a
fixed-output Digital to Analog Converter. To use the DAC 1000 as a pure DAC Stage, change
output mode switch on the rear panel to ‘FIXED’ mode.
*BE SURE TO TURN THE POWER OFF WHEN YOU CHANGE MODE SWITCH.
3) Digital Input
AES/EBU Balanced Digital is the best solution for Digital playback when connected to the transport with 110 ohm
balanced digital cables.
Coax 1 & 2 are generally used ports for digital connection.
Optical Toslink is for optical connection. Use proper Toslink optical cable for this connection.
4) Digital Output
The DAC 1000 routes digital input signals to its 4 digital outputs. You can designate the specific input to be routed
on 4 digital output ports by pressing ‘RECORD’ button either from the remote or from the front panel.
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OPERATION
1. Front Panel Buttons and Display
(fig. 2 Front Buttons)
(fig. 3 Front Display)
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STANDBY
The main power switch is located on the back side.
Once the main power switch is on, the display shows “ORACLE AUDIO DAC 1000” and changes to a
normal display mode as follows:
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REC_OFF 192 kHz
When FIXED/VARIABLE switch is in “VARIABLE”:
D1_AES1 0.0
FIXED/VARIABLE switch is in “FIXED”:
REC_OFF 192 kHz
D1_AES1 FIXED
When you push the ‘Standby’ switch to turn DAC 1000 off, ,the display shows “Standby”. A very small
current is used when in “Standby” mode. We recommend leaving the main power switch ‘on’ under
normal circumstances.
When you are away from home and the DAC 1000 is not in use for a long time, turn the main power ‘off’.
In normal use, use the “Standby” switch to activate and deactivate the system. If you have a 12V trigger
cable connected to your power amplifier, a push of ‘Standby’ button will automatically turn on the power
amplifier.
In “Standby” mode, the DAC 1000 memorizes the volume level of all inputs. A sudden ‘Click’ sound can
surprise you, so proper setting of the volume level control before going to ‘standby’ is always
recommended.
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INPUT
The DAC 1000 has a total of 8 inputs (6 digital inputs and 2 analog inputs).
The first default input is ‘D1_AES1’ and the volume level is displayed on the lower right side of the
display. Output level starts from 00.0 to 59.5 with a 0.5 step to show a total of 120 steps.
Pressing ‘Input’ continuously shows the selection as follows.
FIXED MODE
D1_AES EBU1 ꢁD2_AES EBU2 ꢁD3_COAX1 ꢁD4_COAX2 ꢁD5_TOS1 ꢁD6_TOS2 ꢁD1_AES EBU1…
VARIABLE MODE
D1_AES EBU1 ꢁD2_AES EBU2 ꢁD3_COAX1 ꢁD4_COAX2 ꢁD5_TOS1 ꢁD6_TOS2 ꢁA1_BAL ꢁ
A2_UNBAL
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SURROUND
To use this function, the DAC 1000 should be in "variable mode".
For home theater use only.
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UPSAMPLING
Upsampling of the digital signal makes a very delicate sound change.
DAC 1000 enables the user to choose one from 4 different sampling rates. They are Bypass, 48kHz,
96kHz, and 192kHz.
Bypass means sampling rate is just passed through as it is.
Therefore, no change of sampling rate is done when ‘Bypass’ mode is selected.
You should be the judge for the changes of the sound.
Pressing ‘UPSAMPLE’ and experiment by yourself.
ꢀ RECORD
Choose the input you want to record and upsampling (96kHz) Bypass/ Upsample selection on the rear
panel.
The status for record is displayed on the upper left side of the display.
BYPASS MODE
REC_OFF ꢁD1_AES EBU1 ꢁD2_AES EBU2 ꢁD3_COAX1 ꢁD4_COAX2 ꢁD5_TOS1 ꢁD6_TOS2 ꢁ
REC_OFF…
UPSAMPLE MODE
REC_OFF ꢁD1_AES EBU1 ꢁD2_AES EBU2 ꢁD3_COAX1 ꢁD4_COAX2 ꢁD5_TOS1 ꢁD6_TOS2 ꢁ
REC_OFF…
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The upper middle selection on the display identifes 96kHz digital output.
Be sure to turn the power off when you change BYPASS / UPSAMPLE mode switch.
VOL UP / VOL DOWN
To control the volume, use the up and down buttons.
Volume varies from 00.0 up to 59.5, and MAX (120 Step)
When in “Standby” mode, all the volume level are memorized. And they are recovered when the unit is on
again.
The main power-off from the rear panel will erase the level information from DAC 1000.
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2. Remote Control
(fig. 2 Remote Control)
2.1. REMOTE CONTROL HANDSET
The remote control handset of your Oracle Dac 1000 can control the Oracle CD 1000 or
other cd player model, by using the code RC-5.
2.2 BATTERY INSTALLATION PROCEDURE
Remove the back cover on the remote control handset.
Install two "AAA" batteries following the proper polarity.
Test the remote control handset for proper operation.
Install back cover.
NOTE:
It is strongly recommended to use Alkaline batteries for an extended cycle operation of
the remote control handset but more importantly to prevent any chemical leakage.
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(a) SPECIFICATION
Digital to Analog Converter Section
. 24/192 Upsampling DAC
. Selectable Upsampling (Bypass, 48, 96, 192kHz/24Bit)
. 6 Digital Inputs: 2 AES/EBU, 2 Coax, 2 Toslink
. 4 Digital Outputs: 1 AES/EBU, 2 Coax, 1 Toslink
Preamp Section
. Analog Inputs: 1 XLR Balanced, 1 RCA Unbalanced
. Full Digital Volume Control (Fixed, Variable Mode Selectable)
. Analog Outputs: 1 XLR Balanced, 1 RCA Unbalanced
. Analog Output: Fully Balanced, Class-A Operation
. Bypass for Surround Processor Connection
Other Functions
. Full Function Remote (Upsampling, Input, Volume, Mute, Surround)
. Upsampled (96kHz/24Bit) Digital Recording Output, Selectable
Dimension (WHD)
480 X 100 X 400 mm
Weight:
12 kg
WARRANTY
Oracle Audio Technologies carries a 3 year warranty on new products.
Always contact your authorized Oracle Audio dealer for service.
The Oracle Dac 1000 must not have been modified in any circumstances or the warranty will be voided.
ORACLE AUDIO TECHNOLOGIES
Made in Canada
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