User manual PARASOUND DAC1600

[. . . ] Record the serial number (on rear panel) here for reference: ____________________ Locate your D/AC-1600 HD as close as possible to your digital source. Keep it out of direct sunlight, and away from heat sources such as a hot air register or radiator. If you are stacking your components, avoid placing your D/AC-1600 HD on top of heat producing components, such as power amplifiers or tube-type preamplifiers. Keep it as far away as possible from your tuner or receiver to avoid RF interference. -1- Connecting Your D/AC-1600 HD When you make connections, be careful to avoid tension on digital and audio interconnects which might cause damage to the connectors or cause them to pull loose. [. . . ] Make sure your preamplifier is either turned off or its volume is set to minimum whenever making connections. There are two analog output connections: Unbalanced RCA jacks for unbalanced line output and balanced XLR connectors for balanced line output Pin 1: Ground, Pin 2: + signal, Pin 3: -- signal Digital Output Connection The digital output jack passes your digital source's data stream directly to a digital recorder like a Mini Disc, DAT, DCC or CD-R. Use only digital quality cable for this RCA connection. -2- AC Power Cord Your D/AC-1600HD has an IEC standard detachable power cord that has been specially selected for its contribution to the sound quality of this unit. Try to connect only this cord directly to a nearby AC wall outlet and avoid extension cords or connection to accessory outlets on your preamp. Operating Your D/AC-1600 HD Power Switch Push the upper section of the button to turn on; lower section for off. Input Select Buttons and LEDs The four input select buttons correspond to the four input connectors on the rear panel: Coaxial, ST, TOSlink, and AES/EBU. Press any of these buttons to select the desired digital source. An LED will illuminate to indicate which digital source is selected. Polarity Invert Button and LED This button allows you to select between 0° normal operation and 180° inverted polarity. Even if you know if your preamplifier and power amplifier are inverting or non-inverting designs, you have no way to know which of your CD's may have been recorded with inverted absolute polarity. Absolute polarity means the + and -- of both channels are reproduced so the compression wave of an initial musical attack correlates to the compression wave (+) from outgoing speaker diaphragm motion rather than rarefaction (--) of in-going speaker diaphragm motion. Your choice of 0° or 180° polarity will be strictly a matter of taste. It may be easier to detect differences between 0° and 180° polarity with some recordings than with others. Don't be discouraged if you cannot bear the difference; not everyone can identify absolute polarity. HDCD LED If you play a CD that has been encoded with the HDCD process, this LED will illuminate. This LED will remain off on standard recordings. Sampling Frequency LEDs Your D/AC-1600HD will recognize the digital signal of whatever type of digital source you connect and will switch to the correct sampling rate automatically. The 44. 1 Hz sampling rate is standard for compact discs. 32 Hz is for digital broadcast; 48 Hz is for DAT. De-Emphasis LED Some digital recordings are encoded with pre-emphasis contouring. Your D/AC-1600 HD automatically recognizes and processes them. An LED will indicate that the recording is being de-emphasized. [. . . ] Units that arrive without your specific Return Authorization number, without a suitable shipping carton or evidence of improper internal packing or collect will be refused. After repair under warranty, the unit will be returned to you via prepaid UPS. In the case of an out of warranty repair, we will advise you repair charges before you ship the unit. The same packing requirements and RA requirement apply. D/AC-1600 HD Special Features · · · · · · Four Digital Inputs Balanced Analog Outputs Low Jitter Crystal Receiver HDCD Process Decoder 4 Burr-Brown PCM 63-K DACs IEC removable AC cord · · · · · · Gold-plated audiophile jacks Gold-clad precision relays Three Separate Power Transformers Regulated Power Supplies Polarity Inversion Switch Silver-plated wiring Notes: · · · · · · De-Emphasis Circuit FR4 glass circuit boards Digital Record Output Jack Precision Resistors Precision Capacitors Heavy-duty chassis -4- D/AC-1600 HD Specifications Frequency Response: Signal to Noise Ratio: Channel Separation: Total Harmonic Distortion: Amplitude Linearity: Phase Linearity: Maximum Jitter (HF): 2 Hz - 20 kHz, I0. 25 dB > 108 dB, 113 dB typical > 100 dB @ I kHz < 0. 0015% @ 1 kHz >100 dB; 102 dB typical +/- 0° @ 20 kHz < 50 picoseconds RMS, using selected low jitter Crystal 8412 Digital Interface Receiver Four Burr-Brown PCM 63P-K (highest grade) 20 bit, push-pull for each channel and fully balanced digital operation 8 X (352. 8-kHz) 32 kHz, 4. 1 kHz, 48 kHz; Consumer standard SPDIF PMD-100 High Definition Compatable Digital Digital Process Decoder 0° or 180° switchable Coaxial: 75 RCA TOSlink fiber optic: EIAJ Standard CP-340/RC-5720, 660 nm typical wavelength ST module fiber optic: AT&T Standard, 820 nm typical wavelength AES/EBU Balanced XLR Balanced Analog Line Out: 6. 0 V nominal, 1. 2 k Unbalanced Analog Line Out: 3. 0 V nominal, 600 , Digital: 750 RCA coaxial, 0. 5 V peak-to-peak 3 separate transformers and nine regulators for digital circuits and for each analog channel 120 V, 60 Hz, 18W; may be re-wired for 220-240 V, 50 Hz 19" W x 3" H (3 5/8 with feet) x 13 1/8" D 13. 5 lb. Specifications subject to change or improvement without notice D-A Converters: Oversampling Rate: Digital Input: Digital Filters: Absolute Polarity: Digital Inputs: Outputs: Power Supplies: Power Requirement: Dimensions: Net Weight: -5- Rewiring for 220-240 V 50 Hz Operation The D/AC-1600 HD can be rewired for operation abroad. [. . . ]