Oracle DAC 1000 D/A Converter + Pre-amplifier ORACLE AUDIO TECHNOLOGIES OWNER'S MANUAL
INTRODUCTION Thank you for purchasing the Oracle DAC 1000 D/A converter + pre-amplifier. Please read carefully the instructions before using your DAC 1000. This unit is manufactured under strict quality control and must be used properly for safety and optimal performance.
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.
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 A Converter with a fixed output, a switch on the rear panel makes this change possible by selecting ‘fixed’ mode instead of normal ‘variable’ mode.
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. 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.
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".
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. 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.
OPERATION 1. Front Panel Buttons and Display (fig. 2 Front Buttons) (fig. 3 Front Display) STANDBY The main power switch is located on the back side.
REC_OFF192192 kHz When FIXED/VARIABLE switch is in “VARIABLE”: REC_OFF kHz D1_AES1 O.O 0.0 D1_AES1 FIXED/VARIABLE switch is in “FIXED”: REC_OFF 192 192kHz REC_OFF kHz D1_AES1 D1_AES1 FIXED 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.
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.
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.
(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 .
