Rotel RB930AX User's Manual
Contents
1. not block the ventilation openings at the top and bottom of the unit to avoid damage from overheating ELECTRICAL REQUIREMENTS Your equipment has been designed to be powered by your local AC mains supply Before connecting it to the AC outlet check the rating of your unit on the identification plate found on the rear panel Never plug the unit into an outlet of voltage different to that specified The wrong voltage can cause a serious fire hazard Consult your dealer if in doubt THE CABINET There are no user serviceable parts inside the unit Do not attempt to open the cabinet as this could damage your unit and void your warranty If the amplifier is dropped damaged or does not seem to function properly disconnect the power cord immediately and consult your dealer CLEANING YOUR UNIT If your unit becomes dirty wipe it gently with a soft clean dry cloth Never use solvents of any kind HUM AND NOISE In any high fidelity installation hum may be caused by the interconnection of a turntable tuner amplifier and speakers as a result of wiring different grounding or locations of the components If hum or noise is experienced with your unit try one or a combination of the following measures Check that all cable connections have been well and securely made and that they do not run too close to a strong AC field Disconnect all components from the preamplifier except the power amplifier Then reconnect the turntable and if hum2. 1 0 V 27 kohms Overload Level THD 0 5 96 1 kHz SV Frequency Response 15 to 100 000 Hz 0 dB 1 0 dB DIN Output Peak Curren Power Output BTL Output Speakers Damping Factor Signal to Noise Ratio IHF A network 116 dB GENERAL Power Requirement 120 V 60 Hz 220 240 V 50 Hz depending on destination Power Consumptioi 180 watts Dimension overall 440 W x 92 x 334 D mm 7 3 8 x 3 5 8 x 13 3 16 Ee CE NIE eee 6 5 kg 14 3 Ibs Measured pursuant to the Federal Trade Commission s Trade Regulation Rule or Power Claims for Amplifiers applicable to the USA only NOTE Specifications and design are subject to possible modification without notice
3. ROTEL ZA RB 930AX STEREO POWER AMPLIFIER OWNER S MANUAL WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Wie est F SERAT here near the cisci te SAFETY INSTRUCTIONS Please read this section carefully before you begin in order to ensure the best safe guarding both of yourself and that of your equipment at all times 1 Read Instructions All the safety and operating instructions should be read before the appliance is operated 2 Retain Instructions The safety and operating instructions should be retained for future reference 3 Heed Warnings All warnings on the appliance and in the operating instructions should be adhered to 4 Follow Instructions All operating and use instructions should be followed 5 Water and Moisture The appliance should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool etc E 6 Carts and Stands The appliance should be used only with a cart or stand that is recommended by the manufacturer 6A An appliance and cart combination should be moved with care Quick stops excessive force and uneven surfaces may cause the appliance and cart combination to overturn 7 Wallor Ceiling Mounting The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer 8 Ventilation The appliance shou
4. VOLUME control is set to the minimum position before plugging in the power cord Connect the power cord to the AC mains outlet When plugging and unplugging make sure the power switch on the unit is turned off NOTES Verify that all connections are properly and securely made and that the amplifier and components have been plugged in Using higher quality interconnect cables will improve sound quality ILLUSTRATION 1 REAR PANEL SPEAKER IMPEDANCE STEREO 4 OHMS MINIMUM BRIDGED 8 OHMS MINIMUM LEVEL INPUT LEVEL oo BRIDGED STEREO MONG ILLUSTRATION 2 WHEN USING THE UNIT AS A STEREO POWER AMPLIFIER SPEAKER LEFT 59 un SPEAKER LEFT RIGHE PREAMPLIFIER SPEAKER LEFT PREAMPLIFIER LOCATION AND OPERATION OF CONTROLS AND INDICATORS See Illustrations 1 and 5 Rear and Front Panels to visualize the location of the switches and controls NOTE Ensure the volume control on the preamplifier is set to the minimum position before turning the power on 1 POWER BUTTON INDICATOR Switches the power on and off once power is supplied to the unit 2 BRIDGED MONO INDICATOR Lights up red to show that the BRIDGED switch on the rear panel is set to the MONO position 3 BRIDGED SWITCH ON REAR PANEL When the BRIDGED switch is in the STEREO position this is a stereo 2 channel power amplifier When the BRIDGED switch
5. aken so that objects do not fall and liquids are not spilled into the enclosure through the openings 17 Damage Requiring Service The appliance should be serviced by qualified factory authorized service personnel when The power supply cord or the plug has been damaged or Objects have fallen or liquid has been spilled into the appliance or The appliance has been exposed to rain or The appliance does not appear to operate normally or exhibits a marked change in performance or The appliance has been dropped or the enclosure damaged 18 Servicing The user should not attempt to service the appliance beyond that described in the operating instructions All other servicing should be referred to qualified factory authorized service personnel PORTABLE CART WARNING WARNING To reduce the risk of fire or electric shock do Explanation of Graphical Symbols not expose this appliance to rain or moisture Do not The lightning flash with arrowhead remove the panels There are no user serviceable parts Symbol within an equilateral triangle inside Refer servicing to qualified service personnel is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons d The exclamation point within an CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO equilateral triang
6. for each channel that the and terminals are also correctly matched When using the unit as a MONO power amplifier bridged mode make sure the BRIDGED switch is set correctly to the MONO position Connect only one speaker to the power amplifier connect the speaker lead wire to the LEFT terminal post on the power amplifier and the speaker lead wire to the RIGHT terminal post Do not operate the amplifier with a common ground speaker switching device This will damage the amplifier and void your warranty Consult your dealer if in doubt 2 CONNECTING THE PREAMPLIFIER See Illustrations 2 3 and 4 when using the unit as a stereo power amplifier a monaural amplifier or as a stereo amplifier for bi amplification respectively The stereo mode uses one preamplifier and one power amplifier The bridged monaural mode uses one preamplifier and two mono power amplifiers The bi amping mode uses one amplifier which has two sets of outputs connected in parallel and two stereo power amplifiers one driving the tweeters and the other driving the woofers of the speakers which have separate connectors for the tweeters and the woofers Ensure that regardless of the mode you choose that the correct connections are done 3 CONNECTING THE POWER CORD Always handle the power cord with care and never pull the plug out of the wall socket by tugging the cord Hold the plug to remove it from the wall Ensure the
7. he unit and how they should be properly hooked up via RCA type pin cords Ensure that the Left and Right channels are correctly matched between the RCA type sockets of the unit and those on the components Use speakers of impedance ratings of 4 to 16 ohms However if you wish to operate the unit in bridged mode as a mono power amplifier with only one speaker ensure the speaker is rated 8 ohms minimum The speaker impedance will be indicated on the back of the speakers or in the speaker s instruction manual Use proper speaker cords which your dealer will normally recommend with as low capacitance content as possible The speaker connections five way binding posts provided on the back of the amplifier are suitable for banana plugs as well as bare wire or spade lugs f connecting the speaker cords directly with bare wire ends we suggest you strip off about 1 cm of the insulation shield cover from the ends of the speaker cords Twist any exposed strands tightly and insert the ends fully and securely into the terminals on the rear panel Check that the speaker cord ends exposed tips on the terminal posts have no stray wires touching one another as this can cause short circuits and may damage both the amplifier and the speakers When using the unit as a STEREO power amplifier make sure the BRIDGED switch is set correctly to the STEREO position Connect the Left and Right channels correctly between the speaker and the unit and ensure
8. is in the MONO position this is a single channel monaural power amplifier 4 LEVEL CONTROLS ON REAR PANEL e There is a LEVEL control for each channel left and right which are useful for custom installations or for setting the sensitivity to match other amplifiers or speakers in a surround sound system Tum the LEVEL controls clockwise for greater sensitivity and counterclockwise for less sensitivity We recommend fully clockwise rotation in normal use ILLUSTRATION 5 FRONT PANEL SPECIFICATIONS Continuous Power Output 30 watts per channel min RMS both channels driven into 8 ohms from 20 to 20 000 Hz with no more than 0 03 total harmonic distortion 55 watts per channel 1kHz 4 ohms 1 THD 20A 0 1 ohms 10 psec 1 pulse 0 watts mono min RMS driven into 8 ohms from 20 to 20 000 Hz with no more than 0 0396 total harmonic distortion Total Harmonic Distortion temen NO more than 0 03 continuous rated power output 20 to 20 0C2 Hz No more than 0 03 continuous 1 2 rated power output No more than 0 03 1 watt per channel power output 8 ohms intermodulation Distortion No more than 0 05 continuous rated power output 60 Hz 7 2 4 1 No more than 0 0596 continuous 1 2 rated power output No more than 0 05 1 watt per channel power output 8 ohms 8 ohms min bridged mono mode 4 16 ohms stereo mode 180 20 to 20 000 Hz 8 ohms Input Sensitivity Impedance
9. ld be situated so that its location or position does not interfere with its proper ventilation For example the appliance should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may that may impede the flow of air through the ventilation openings 9 Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliances including amplifiers that produce heat 10 Power Sources The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance 11 Grounding or Polarization The precautions that should be taken so that the grounding or polarization means of an appliance is not defeated 12 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords and plugs convenience receptacles and the point where they exit from the appliance 13 Cleaning The appliance should be cleaned only as recommended by the manufacturer 14 Power Lines An outdoor antenna should be located away from the power lines 15 Nonuse Periods The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time 16 Object and Liquid Entry Care should be t
10. le is intended to alert the user to the presence of important USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL RISK OF ELECTRIC SHOCK DO NOT OPEN operating and maintenance instructions in the literature accompanying the appliance INTRODUCTION A WORD FROM ROTEL Rotel wishes to take this opportunity to thank you for choosing our product Our commitment and dedication to the design and manufacturing of high fidelity products for more than thirty years have guided the creation of equipment with the highest level in sound reproduction We are confident that you will enjoy your Rotel equipment now and for many years to came Please read this instruction manual carefully before you start using your amplifier and keep it in a safe place for future reference Thank you UNPACKING AND INSTALLING UNPACKING amp LOCATION Carefully unpack your power amplifier and place it gently at its intended location Please keep the packaging material for future use in case you move or need to return the unit for service Place the amplifier on a flat firm surface where it will be free from direct sunlight excessive humidity vibrations dust heat or cold Do not place audio or video cassettes on top of the amplifier because their content may be erased due to the magnetic fields created by the transformer located in the amplifier Ensure the amplifier has sufficient ventilation Do
11. or howling appears move the turntable further away from the speakers Use an improved outdoor antenna on your tuner or move the equipment away from objects such as fluorescent lamps rheostats and house appliances that use motors or thermostats when receiving broadcasts Connect a wire from the ground terminal on the rear panel of this unit to the ground terminal on the applicable source unit or any other point on the cabinet where noise can be brought down to a minimum However absolutely ensure the wire does not touch any areas related to the power source such as auxiliary AC outlets and do not insert the wire inside the cabinet Contact your dealer for further advice STEREO AND MONO OPERATION The power amplifier can be used either as a normal stereo or as a bridged mono amplifier The unit comes factory set as a stereo amplifier the BRIDGED switch on the back of the unit is set at the STEREO position Do not tamper with the switch unless you wish to use the unit as a mono amplifier in which case reset the switch to the MONO position Do not connect the speakers before the switch position is set correctly according to your choice Two bridged mono amplifiers must be used for stereo operation MAKING THE CONNECTIONS See Illustration 1 Rear Panel to visualize where the connections to components are to be made 1 CONNECTING THE SPEAKERS e The illustration shows what audio components you can connect to the rear panel of t
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