Rotel RA935BX User's Manual
Contents
1. 210 mV 15 kohms 8 ohms from 20 to 20 000 kHz Overload Level THD 0 5 1 kHz with no more than 0 05 total CD TUNER 5V harmonic distortion AUX TAPE 1 2 5y DIN Output occa ceesicensxost y wes an hes lag 1 kHz Frequency Response ig a IN fat CD TUNER o 10 to 100 kHz 1 0 dB 3 0 dB Total aani a i e T AUX TAPE 1 2 0 10 to 100 kHz 1 0 dB 3 0 dB Distortion 20 t0 20 kHz Signal to Noise Ratio IHF A network irom AUX seessssoeessssssss No more than 0 05 continuous repens ig Saabs 105 dB rated power output No more AUX TAPE 1 2 105 dB than 0 03 continuous 1 2 rated power output No more than MISCELLANEOUS 0 03 1 watt per channel power Power Requirement 120 V 60 Hz 230 V 50 Hz output 8 ohms 240 V SO Hz depending on Intermodulation destinations Distortion Power Consumption 300 Watts 60 Hz 7 kHz 4 1 No more than 0 03 continuous Dimension overall 440 W x 92 H x 347 D mm rated power output 17 3 8 x 3 5 8 x 13 11 16 No more than 0 01 continuous Weight net TT CTTI 6 1 kg 13 4 Ibs 1 2 rated power output No more than 0 02 1 watt per Specifications and design subject to possible modification channel power output 8 ohms without notice Output Speakers s 4 ohms minimum e Measured pursuant to the Federal Trade Commission s Headphone 8 2 000 ohms Trade Regulation Rule or Power Claims for Amplifiers Dampin2. ROT EL n STEREO INTEGRATED AMPLIFIER RA 935BX owners manudi r TEE AEE SE S SRNR ATE PA E SA EL ES WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Write your SERIAL NUMBER here The number is located near the name plate on the rear panel Volume Control Used to regulate the volume level Turn clockwise to increase the level and counterclockwise to reduce it The control permits either the combined or the separate adjustment of the left and the right channels Normally turn the dual concentric knob as one for the combined adjustment When it is necessary for the separate adjustment of each channel due to unbalanced sound levels between both channels hold the front part of the knob with one hand and turn the rear part of the knob independently Due to the high quality material and construction used on the volume control for sound quality the sound level will not rise sharply at low settings Normally the control is recommended to be set between 11 30 to 2 00 o clock position with other Rotel s equipments connected but a finite adjustment will depend on the sensitivity of your speakers 6 Recording Selector Permits choose any input connected to the unit and feed it directly to the TAPE 1 and TAPE 2 outputs on the back of the unit for recording the selected input However note the TAPE 1 input can be recorded by the TAPE 2 output but the TAPE 2 input canno
3. ayback 1 Set to the TAPE 1 or TAPE 2 position on the Listening selector depending on which input your tape deck is connected 2 Use only a good quality cassette tape deck in terms of sound quality or a DAT deck etc for maximizing the full potential of the amplifier 3 Using higher quality interconnecting cords between your tape deck and the amplifier may often improve sound Recording with Tape Deck 1 Set the Recording selector to any input you wish to record and proceed the recording with your tape deck connected to the TAPE 1 or the TAPE 2 outputs If you have two tape decks you can only record the TAPE 1 inputs with the TAPE 2 outputs The TAPE 2 inputs cannot be recorded by the TAPE 1 outputs 2 During recording operation of the Volume control have noeffectontherecorded signal being fed to the TAPE 1 or TAPE 2 outputs 3 You may monitor recording signals by setting the Listening selector to the same input as the Recording selector For example if you are recording CD set the Listening selector to CD Dubbing When two tape decks are connected you can dub tape to tape copy one tape deck to the other tape deck Note the dubbing can only be done from the deck connected to the TAPE 1 input to the other deck connected to the TAPE 2 output HUM AND NOISE In any high fidelity installations hum may be caused by the interconnection of turntable tuner amplifier and speakers as the result of wiring different groun
4. ding or locations of components lf hum is experienced with your unit disconnect everything but the speakers from the unit Plug in the turntable and if hum or howling appears move it away from the speakers as much as possible Note hum may also be induced by defective cable connections or by running the cables too close to strong AC field When your unit picks up noise during the reception of broadcasts causes are mostly due to external objects such as fluorescent lamps and house appliances using motor or thermostat or others than may induce noise Either relocating the unit away from the noise sources or using an improved outdoor antenna may readily resolve the problem In the event you cannot find the cause consult your dealer or a qualified electrician ROTEL STEREO INTEGRATED AMPLIFIER RA 9358X VOLUME L amp R RECORDING LISTENING SWITCHES AND CONTROLS Speaker Remote Button Power Button Press the button to activate the speakers connected to the Press this button to turn on and off the unit REMOTE speaker terminal posts on the back panel Release Power Indicator the button to cut off the sound from the remote speakers Glows when power is turned on with the power button 3 Phones Jack Plug your headphones to this jack making sure it has the correct type connector For private listening if your speakers are connected to the DIRECT speaker terminal posts on the back panel you have to disconnect the
5. g Factor 150 20 to 20 000 Hz 8 ohms applicable to the U S A only Power Amplifier Bias Adjustment Instruments DC milli voltmeter Notes Prior to Bias Adjustment run about 5 minutes with rated output 8 ohm and warm up Power Transistor and Heat Sink Set Volume control to minimum Coupling Step oe ae a Adjust for DC milli voltmeter reads 6 mV
6. ghly enclosed area without adequate ventilation around the unit Do not block the ventilation openings at the top and the bottom of the unit to prevent excessive heat built up 2 Electrical Requirements Your equipment has been designed to be powered by the local AC voltage Check the setting of your unit by looking at the rear panel name plate Never try to plug the unit into an outlet of higher voltage as this causes a serious fire hazard Consult your dealer if in doubt 3 Connecting the Power Cord Always handle the power cord with care Ensure to connect the cord to the household wall outlet When plugging and unplugging make sure the power switch on the unit is turned off 4 Do not Open the Cabinet There are no user serviceable parts inside the cabinet of the unit Do not attempt to open the cabinet or tamper with the internal components If water or foreign object falls inside the unit by accident disconnect the power cord immediately and consult a qualified electrician or your dealer 5 Cleaning Your Unit lf your unit becomes dirty wipe it gently with a soft dry cloth Never use solvents of any kind CONNECTIONS 1 Connecting Components The illustration shows what audio components you can connect to the rear panel of the unit and how they should be properly hooked up via RCA type pin cords Ensure that the left and the right channels are correctly matched between the RCA type sockets of the unit and those on the comp
7. onents 2 Connecting Speakers a Use speakers with impedance ratings of 4 to 8 ohms However if you wish to hook up 2 sets pairs of speaker systems and drive both sets simultaneously ensure each speaker is rated 8 ohms minimum Never connect speakers with lower impedance than 8 ohms in this case The speaker impedance is indicated on the back or in the instruction manual of the speaker b Do not use speakers that have very high capacitive load Say over 0 1 microfarads as it may cause a damage to the power amplifier section Normally most speakers are low Capacitance type but there are a few which do have excessively high capacitance c Use proper speaker cords normally your dealer will recommend with as low capacitance content as possible The speaker terminal posts provided on the back of the unit can also take banana plugs d If connecting the speaker cords directly with the bare wire ends suggest you strip about 1 cm of the insulation shield cover from the ends of the speaker cords Twist any exposed strands tightly and insert the ends properly to the terminal posts e The DIRECT terminal posts are recommended for the best sound quality possible from the unit in the straightpath route bypassing the headphone circuit The sound from the speakers connected to the DIRECT terminal posts will not be affected by the Speaker Remote button on the front panel However if you wish to listen to your headphone pri
8. speakers off the terminal posts to cut off sound from the speakers however if your speakers are connected to the REMOTE speaker terminal posts deactivate the Speaker Remote button to cut off sound from the speakers Hence if you are frequent user of the headphones you may wish to connect the speakers to the REMOTE terminal posts all the time CONNECTING COMPONENTS COMPACT DISC PLAYER VIDEO CASSETTE RECORDER TUNER ee SPEAKER IMPEDANCE MINIMUM DIRECT OR REMOTE 4 OHMS PER SPEAKER DIRECT AND REMOTE 8 OHMS PER SPEAKER XD QODQE FTH TRE T LA TAPELI TAPEZ TO AC WALL OUTLET CASSETTE DECK CASSETTE DECK RIGHT LEFT RIGHT LEFT DIRECT SPEAKERS REMOTE SPEAKERS STEREO AMPLIFIER RA 935BX A WORD FROM ROTEL Rotel take this opportunity to thank you for choosing our equipment for your home entertainment Rotel equipment represents a very high state of the art in sound reproduction as the result of our everlasting determination to achieve the truly hi fi performance Please enjoy the sound Rotel have created for many years to come To make sure you get the most out of your equipment please read this owner s manual carefully before your attempt any connections BEFORE CONNECTIONS 1 Place for Installation Ensure to place the unit in a flat surface where it is free from humidity vibration high temperature and not exposed to direct sunlight Also be careful not to place the unit in a hi
9. t be recorded by the TAPE 1 output It is possible to record one source e g CD or TUNER while listening to a different source such as AUX When not recording ensure to set the selector at the center OFF position to cut off the circuit completely from the signal path 2 Listening Selector Allows choose any input connected to the unit The selector operates independently from the Recording selector above so you can listen to one source while recording another different source WORDS ON OPERATIONS Precautions 1 Before commencing operation check to see if all connections are properly made 2 Always ensure to set the Volume control to the minimum position before turning on the Power switch 3 Make sure the Recording selector is at the OFF position when listening to any source and not recording Tuner Reception 1 Set to the TUNER position on the Listening selector 2 If possible turn your tuner s power off when not operating it Although crosstalks are held to minimum by the circuit design this is the perfect way to cut off the signal from the radio reception bleeding through to the other inputs connected to the main unit Operating CD Player 1 Set to the CD position on the Listening selector 2 Read the instruction manual of your player carefully to maximize the full potential 3 Using higher quality interconnecting cords between your CD player and the amplifier may often improve sound quality Tape Deck Pl
10. vately connect your speakers to the REMOTE terminal posts and use the Speaker Remote button on the front panel to turn the speakers off f The REMOTE terminal posts are for the second pair of speakers if you wish to use it for such as providing sound to another room The sound from the remote speakers can be turned on and off by the front panel Speaker Remote button g Ensure the Left and the Right Channels are correctly connected between the unit and the speakers and make sure for each channel the and the are also correctly matched Check that the speaker cord ends exposed tips on the terminal posts are not stray and touching one another which will cause short circuits and may damage both the unit and the speakers 3 Connecting Tape Recorder a When connecting only one tape recorder cassette deck DAT etc use the TAPE 1 inputs and outputs b When connecting two tape recorders use the TAPE 2 inputs and outputs for the recorder which you wish to use for recording dubbing the other recorder which then is connected to the TAPE 1 inputs and outputs For example connect a DAT deck to the TAPE 1 jacks and acassette deck to the TAPE 2 jacks as normally you wish to record DAT tapes onto cassette tapes Specifications RA 935BX Continuous Power Input Sensitivity Impedance CHUTE AEE SR E 40 watts per channel min CD TUNER 210 mV 15 kohms RMS both channels driven into AUX TAPE 1 2
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