Rotel RDP 980 User's Manual
Contents
1. PORTABLE CART WARNING mnutidtunr appliance Should be moved wi care C Hops excessive fore and uneven surfaces may cause se apolancs Vi combination to avertum 7 Wall or Ceiling Mounting The should be mounted to Wall ar oniy as recommended by Ih manutacturor 1 Ventilation The soplance should be stunted so that location or postion does nof wih PS sec vantition For eramale the apokance should not Be led Ded soo rug or surface that may the vertintion apemgi or paces in auton installation auch as bookcase or cabinet that may that may impede the af ar ough the venllaton openinge 3 Hent Tne appliance should be skuated away tom heat muen radiator heat registers stoves or other ppkances neluding ampliirs a produce heat Power Sources The appliance should be connectes to power supply only the type described i the operating rations o as marked on ne appliance 11 Grounding or Polarization precautions tat shouid be akon that the or potarzaton means of an Power Cord Protection Power supply cords should be so thet they are not key io be walked on of pinched by tema placed upon against them paying atenton to cords and pugs convenience Tecepiades and the where they eet I2. oversampling digital fi eliminate spurious noise The output stage is implemented with a low impedance buffer amplifier that includes a 2nd order Butterworth fiter to further reduce spurious high frequency noise ROP 980 will provide accurate and musical reproduction of the digital information on your CDs other digital scurce information By separating the DAC from the source component it is possible to optimize the design of both The result is maximum performance and sound quality Because the DAC and the source Component have separate power supplies there is no interaction between a mechanical assembly s power requirements and the audio circuits need for a clean stable and ripple free power supply The multiple power regulation stages in the power supply of RDP 980 ensure each critical stage has noise free stable power for operation The printed circuit board layout PCB the PCB material the star earth ground patterns and the exact part choices mace during design and fine tuning in the UK have all been made for one reason only to provide you with the finest possible Digital to Analog Converter at reasonable price INSTALLATION OF THE 980 Please place the unit on a DRY level surface away from direct sunlight Avold placing objects of the ROP 980 Do not allow water to fall into the ROP 980 as this could damage the Circully or drive components Avoid installing the DAC in location where excessive he h
3. ROTEL RDP 980 Digital Audio Processor Owners Manual ase date of this RDP 980 in the spaces Please write the serial number an provided for your records Serial Number Purchase date WARNING TO REDUCE THE RISK OF FRE ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION j CAUTION To REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARIS INSIDE REFER SERVICING TO QUALFIEO SERVICE PERSONNEL Explanation of Graphical Symbols The ling fash wih arrowhead symol wen an equator finned to let the user ote presente of uninsulstod Ganges volage Wann the products that may be cl flint magnitude o construte 1 ve f elt Tr wechmalon point ws D edad 10 fe wer to the af portant operatmg and antan rations in He alure becompanyng e SAFETY INSTRUCTIONS M Instructions Al t sly ope iius should be mad balore me apaia 2 Retain Instructions The aed parting Instone etna or ut Heed Warnings warnings onthe applar operating a ckons Vhoul be adhered to 4 Follow instructions Al operating cse foul be ohne Water end The appliance shoul not be vied near water for ample b uni Jaunary b a basement or near swing peel
4. andset Please be certain not to block this as the remote control will not function if this is covered or blocked The ROP 980 will AUTOMATICALLY select the correct sampling frequency for the incoming digital signal The RDP 980 will sample and convert 32 kHz 44 1 kHz or 48 kHz signals from your digital source components The frequency being sampled will be indicated by an illuminated indicator light The OUTPUT signals from the RDP 980 are OPTICAL or COAXIAL If you wish both may be operated at the same time This could be useful if you are recording from the Optical output and listening to the Coaxial output as an example The small lights over the labels will indicate which output is active when they are ON We have included a digital PHASE invert switch on the RDP 980 Many audiophiles have noticed the subtle but readily apparent difference between signals that are in correct absolute phase and signals that are in inverted phase When an instrument is struck or plucked to Greate note it creates a positive energy pulse Many recording studios do not have correct absolute phase in their recording circuits and the absolute phase of the signals recorded onto the master tape may be in correct absolute phase or inverted phase With the Phase invert switch itis possible to compare the effect of reversing the absolute phase of the signal The correct phase setting will exhibit more of a sense of rightness or attack to the transient sig
5. en you wish to disconnect the power cord from the wall always hold the plug firmly and then pull it out of the wall socket Do not unplug the power cord from the wall by pulling the cord only This may damage the power cord and create hazardous condition We recommend that the ROP 980 be connected to the mains wall sockat an AC power line filler not an extension cord If you wish to clean the cabinet on the RDP 980 we suggest that you clean it with a soft DRY cloth Never use cleaning compounds or solvents to clean the cabinet as they may damage the finish or remove the labels Cleaning compounds or liquids could damage the circuitry if any residue falis inside RDD 980 There is NO user serviceable part inside the ROP 980 Please do not open the cabinet as this will expose you to the risk of potentially dangerous high voltage and the risk of shock This coul warranty mom pr Please reter to this drawing of the Front Panel when reading the section about Controls on the RDP 880 CONTROLS ON THE RDP 980 DIGITAL TO ANALOG CONVERTER The POWER button will turn the ROP 980 ON and OFF Push it in and the RDP 980 will turn The POWER INDICATOR LIGHT will illuminate at the same time If you push the Power button again the power will go OFF and the Power Indicator Light will extinguish The Front Panel includes the REMOTE SENSOR for receiving the Infra Red signals from the REMOTE CONTROL h
6. he apiance 13 Cleaning The aophance shouls be cleaned as recommenced by the manutactre Nonuse Periode The power cort of tse appliance be unplugged he outlet when left unused for parios of me Object and Liquid Entry Care should be taken so that fedis do Tall and Maui we nat spilad into the ae lug the openings 16 Damage Requiring Service The appliance should be termes aua Vid factor a tronaed serace personnel The power supp y or the ply been nave lon of liquid han been plied Into Ihe once The has been 7 The applance does nat to operate normaly ur rare change n pertrmance or un been droppes or Vw encore sho noi l the beyond Wal selbe Um Whe fons A erwin should be reed 19 Quand tactory authoied verve personnel APPLICABLE FOR U S A CANADA OR WHERE APPROVED THE USAGE CAUTION TO PREVENT ELECTRIC SHOCK MATCH WADE BLADE OF PLUG WIDE SLOT FULLY INSERT ATTENTION POUR EVITER LES CHOCS LECTRIQUES INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUST AU FOND A WORD FROM All OF US AT ROTEL Thank you for purchasing our RDP 980 Digital to Analog Converter We have been designing nd manufacturing high quality high performance audio electronics for mo
7. nals from bells triangles drums etc This is not the same as incorrect phase when wiring speakers With RDP 980 it will be easy to experiment with this aspect of sound reproduction We have included a MUTE button for silencing the output of the 980 When the output is muted a small light above the button wil be illuminated The 980 has a button to select a COAXIAL or OPTICAL INPUT from digital source components An illuminated indicator light will show whether Coax ial or an Optical input has been chosen The MONITOR record monitor button is for use with any digital recorder It will be especially useful if you have a DAT deck that can read and write digital data af the same time If you have such a deck usually only professional machines have this feature you will be able to compare the source and the recording by using the tape monitor button When the tape monitor switch is ON a small indicator light will be illuminated above the button The INPUT chosen before the MONITOR button was pushed will be the only one you can choos until you defeat the tape monitor button This was done to avoid the possibilty that someone would accidentally change the input while making a recording We have provided four INPUT SELECTOR buttons 1 to 4 on the 980 These will accept the digital output of a CD player Laser disc player Digital Audio Tape recorder DAT Mini Disc MD Digital Compact Cassette DCC sa
8. obtained from the coaxial 75 ohm inputs and outputs with high quality 75 ohm characteristic impedance patch cables High performance RCA patch cables will improve the sound of your stereo and we recommend them Ask your ROTELA fi AUTHORIZED DEALER for advice about cables for analog and digital signals in your sound system A FINAL WORD FROM ROTEL ABOUT THE ROP 980 We have designed this Digital to Analog Converter for high performance using test equipment and the human ear We believe that both methods are useful in the design of audio electronics This is a time consuming process but we feel that the music benefits trom this care and attention to detail We realize that there are many choices available in the market today We thank you again for choosing our RDP 980 Digital to Analog Converter as the centerpiece for igital components in your system Enjoy the music SPECIFICATIONS RDP 980 DIGITAL TO ANALOG CONVERTER Frequency Response Signal to Noise Ratio Total Harmonic Distortion Intermodulation Distortion Dynamic Range D to A Converter Digital Filter TOSLINK Inputs Coaxial Inputs Coaxial Input Impedance TOSLINK Output Coaxial Output Audio Output Output Impedance Power Consumption Power Requirements AC Weight Dimensions All specific Without notice 520 000 Hz 0 5 dB 110 dB IHF A 0 0025 1 kHz 44 1 kHz 0 006 400 Hz 7 kHz 4 1 O dB 95 48 Oversampling A 8
9. re than 30 years This Digital to Analog Converter will provide accurate reproduction of the digital signal and is a natural extension of our love for music Our passion for good sound and our love of music is well known We believe that the music played through the ROP 980 and companion digital source component such as the Rotel ROD 980 will be a source of enjoyment to you for many years to come Rotel is committed to making quality products to enhance your We have designed and manufactured this DAC to be durable easy to use and fo exactly replicate the original digital signal while converting it to an analog signal Please read the owners manual to ensure that the RDP 980 is properly installed and able to offer optimum performance We appreciate being a part of your life FEATURES OF THE RDP 980 DIGITAL TO ANALOG CONVERTER Careful listening tests have shown that iow jiter enhances the sound quality and the enjoyment of the music played through a digial system We have incorporated recent design and manufacturing techniques to ensure the lowest possible distortion and jitter in tnis D to A Converter We have utilized 1 bt 64 x oversampling Delta Sigma A X digital to analog conversion chip including an x oversampling digital fiter We have chosen this combination for its excellent sonic and measured performance We include a Sth order switched capacitor filter to minimize diditaljtter and then a 2nd order filter after the 8 x
10. tellite broadcast tuner BS or NICAM or digital output from VCR or 8 mm video tape deck These inputs will accept 75 ohm coaxial or TOSLINK optical inputs You may select between optical and coaxial inputs with the INPUT COAX or OPTI buttons on the front panel The REMOTE CONTROL for the ROP 980 will operate the INPUT SELECTOR COAXIAL or OPTICAL INPUTS and OUTPUTS PHASE MUTE and the RECIMON switches The buttons on the remote control color coded for ease of use The INPUT SWITCHING OPTICAL or COAXIAL SWITCHING for the INPUTS and OUTPUTS are grey the button for PHASE invert is orange and the MUTE button is black amp Fi Please refer to this drawing of the Rear Panel when connecting components to your ROP 980 CONNECTING THE RDP 980 IN YOUR SYSTEM The AUDIO OUTPUTS of the RDP 980 are designed for RCA patch cables Please note the LEFT and RIGHT channel output connections and connect them to the corresponding input channels of your preamplifier or integrated amplifier The INPUTS are numbered from 1 to 4 and have COAXIAL and OPTICAL connectors for each Connect the digital output of the source component to the desired input of the RDP 980 The RECORD MONITOR connections are clearly labeled and should be connected to the input at Output of your digital recorder IN receives a signal from your digital recorder and OUT sends signal to your digital recorder We suggest that the best sound will be
11. umidity vibration or moisture will be a problem We recommend installing the RDP 960 in furniture designed to house audio components This will allow the RDP 80 to be on its own shelf not stacked on another component or with something stacked on it This will minimize potential interference with other components in your system such as your tuner or amplifier Component furniture has the added benefit of reducing suppressing vibration and al audio components will provide improved sound when free from vibration Component furniture will improve the looks of many system installations and provide adequate ventilation for amplifiers and isolation for other components is also easier to dress the wires to reduce interference between sensitive audio cables speaker cables and power cords for components Ask your ROTELAi fi Authorized Dealer for advice about component furniture and proper installation of audio components ELECTRICAL REQUIREMENTS This DAC is designed to work on AC voltage and the correct voltage is displayed on the Back Panel Do not attempt to operate the RDP 980 on incorrect voltage as this will damage the cirtuitry and void your warranty If you are in doubt about the correct voltage we suggest that you read the label on the back panel the label on the packing carton or consult your ROTELhi fi Authorized Dealer for confirmation of the correct voltage Connect the Power Cord to your wall socket for AC power Wh
12. x Oversampling 4 1 Monitor 4 1 Monitor 75 Ohms 17 dB 660 NM IEC 75 ohms 20 volts 100 ohms 15 watts 120 volts 50 60 Hz or 220 230 240 volts 50 60 Hz 63Kg 13 86 Lbs 440 mm x 72 mm x 318 mm WxHxD 17 348 x 2 718 x 12 7116 WxHxD ions are accurate at the time of printing Rotel reserves the right to make improvements
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