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STEREO REVERBERATION AMPLIFIERRA-59INSTRUCTION MANUALKENWOOD CORPORATION

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lntroductionYour choice of this product indicates that you are a devoteeto excellence in sound reproduction.We appreciate your patronage and take pride in the long tradi-tion of quality components that our company represents.So that you can get the most out of your unit, we suggest thatyou take the time to read through this manual before you hookup and operate your system. This will acquaint you with oper-ating features and system-connection considerations so thatyour listening pleasure will be enhanced right from the start.You will notice that in all aspects of planning, engineering,styling, operating convenience and adaptability we have soughtto anticipate your needs and desires.Keep this manual handy for future leference.For your recordsRecord the serial number, found on the back of the unit, inthe spaces designated on the warranty card, and in the spaceprovided below. Refer to the model and serial numberswhenever you call upon your dealer for information or serviceon this product.Model Serial NumberUnpackingUnpack the unit carefully and make sure that all accessoriesare put aside so they will not be lost.Examine the unit for any possibility of shipping damage. lf yourunit is damaged or fails to operate, notify your dealer immedi-ately. lf your unit was shipped to you directly, notify the ship-ping company without delay. Only the consignee (the personor company receiving the unit) can f ile a claim against the car-rier for shipping damage.We recommend that you retain the original carton and pack-ing materials for use should you transport or ship the unit inthe future.

AccessoriesAudio cord .................. 2 AC plug adap1or......................... 1For the unit with a European ACplug in areas other than Europe.(except for some areas)

COntgntS caution: Read the pages marted A carefully to ensure safe operation.Controls and indicators .................. ......... 7Operating instructions ............................. 7ln case of difficulty Back coverSpecifications ................... ...... Back cover

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ACaution: Read this page carefully to ensure safe operation.Before applying powerFor the U.S.A. and Canada

lmportantUnits shipped to the U.S.A. and Canada are designed for opera-tion on 120 volts AC only.Safety precaution for a Polarized AC plugHowever, some products may be supplied with a non-polarizedplugCAUTION: ro pREVENT ELEcrRtc sHocK Do Nor usETHIS (POLARIZED) PLUG WITH AN EXTENSION CORD,RECEPTACLE OR OTHER OUTLET UNTESS THE BLADES CANBE FULLY INSERTED TO PREVENT BLADE EXPOSURE.

For Australia and Europelmportant

Units shipped to Australia are designed for operation on 24O VAC only.Units shipped to Europe are designed for operation on 220 VAC only.

For the United KingdomlmportantUnits shipped to the U.K. are designed for operation on240 volts AC only

The mains plug must be removed from the wall socket priorto any internal examination.The wires in this mains lead are coloured in accordance withthe following code:Blue ...Brown .......... ........... LiveThe wrres in this mains lead must be connected to the termi-nals in the plug as follows:

Brown toLive

Notes:1 If a 13-amp plug is used, this must be fitted with a S-ampfuse.2 lf a 3-pin plug with earthing contact is used, no wire mustbe connected to the E terminal.

..... Neutral

Plug

For other countrieslmportant

Units shipped to countries other than the above countries areequipped with an AC voltage selector switch on the rear panel.Refer to the following paragraph for the proper setting of thisswitch.AG voltage selectionThis unit operates on 1 10-1 20 or 220-240 volts AC. The ACvoltage selector switch Type A or Type B on the rear panel isset to the voltage that prevails in the area to which the unitis shipped. Before connecting the power cord to your AC out-let, make sure that the setting position of this switch matchesyour line voltage. lf not, it must be set to your voltage in ac-cordance with the following direction.Note:Our warranty does not cover damage caused by excessive linevoltage due to improper setting of the AC voltage selectorswitch.

AC voltage selector switchType A

120V-Type B

120V - 240V -Move switch lever to match your line voltage witha small screwdriver or other pointed tool.[I[AC110V- AC220V-

Safety precautionsWARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCETO RAIN OR MOISTURE

CAUTION CAUTION: TO REDUCE THE RISK OF ELECTRTC SHOCK, DO NOT REMOVECOVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE, REFER SER-VICING TO OUALIFIED SERVICE PERSONNEL.THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EOUILATERAL TRIANGLE,IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED "DANGEROUS VOL-TAGE" WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDETO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.

THE EXCLAMATION POINT WITHIN AN EOUILATERAL TRIANGLE IS INTENDED TO ALERT THEUSER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) IN-STRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCERA-ss (En) 3

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lmportant safeguards Acaution: Read this page carefullv to ensure safe operation.-

I

Please read all of the safety and operating instructions beforeoperating this unit. For best results, follow all warnings placedon the unit and adhere to the operating and use instructions.These safety and operating instructions should be retained forfuture reference.

1. Power sources - The unit should be connected to apower supply only of the type described in the operatinginstructions or as marked on the appliance.

2. Power-cord protection - Power-supply cords shouldbe routed so that they are not likely to be walked on orpinched by items placed upon or against them, pay par-ticular attention to cords at plugs, convenience recep-tacles, and the point where they exit from the unit.

Never Pull or stretch

3. Ventilation - The unit should be situated so that itslocation or position does not interfere with its proper ven-tilation.To maintain good ventilation, do not put records or atable-cloth on the unit. Place the unit at least 10 cmaway from the walls.

4. Water and moisture - The unit should not be usednear water - for example, near a bathtub, washbowl,kitchen sink, laundry tub, in a wet basement, or near aswimming pool, etc.

5. Temperature - The unit may not function properly ifused at extremely low, or freezing temperatures. Theideal ambient temperature is above + 5oC (41oF).

6. Heat - The unit should be situated away from heatsources such as radiators, heat registers. stoves, or otherunits (including amplifiers) that produce heat.

7. Electric shock - lf a metal object, such as a hair pin ora needle, comes into contact with the inside of this unit,a dangerous electric shock may result. For families withchildren, never permit children to put anything, especial-ly metal, inside this unit.

8, Enclosure removal - Never remove the enclosure. lfthe internal parts are touched accidentally, a seriouselectric shock might occur.

9. AC outlets - Do not connect other audio equipmentwith a power consumption larger than that specified tothe AC outlet on the rear panel. Never connect otherelectrical units, such as an iron or toaster, to it to prevent

The maximum capacities indicated for the AC outlets onthe rear panel of the this unit are as follows.

UNSWITCHED outlet ; 200 W10. Cleaning - Do not use volatile solvents such asalcohol, paint thinner. gasoline, or benzine, etc. to clean

the cabinet. Use a clean dry cloth.

11. Abnormal smell - lf an abnormal smell orsmoke is detected, immediately turn the powerOFF and pull out the power cord. Contact yourdealer or nearest service station.

fire or electric shock.

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connectionswhen this unit is connected to an integrated amprifier

Pre-main amplifier

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trE RA.59To AC outlet

Tape deck

Precautions1 . Before connecting or disconnecting any cord, be sureto turn OFF the power switches of the unit and amplif ier.2. Each audio cord must be connected securely to thecorresponding terminals (E to [] and E to Et3. Do not bind the input/output cords with the power cordor speaker cords. Do not extend the inputy'output cordsunnecessarily to avoid the possibility of noise or deterio-ration of tone quality.

AG outlet (UNSWITCHED)This outlet provides power when the unit is plugged intoan active AC wall outlet, regardless of the setting of thePOWER switch. lts total maximum capacity is 200 watts.

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System connectionsWhen a graphic equalizer is connected to this unit

Tape deck

TAPEBEC PLAY

(Set the T Monitor switch to ON)

RA-59 Rear

To AC outlet

Graphic equalizer

Tape deck

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ffi&ffi:GMicrophone

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Controls and indicatorsATTENUATOR switch

REVERBERATTON switchReverberation indicator

EFFECT switchFUNCTION switch REVERB TIME control

TAPE switch DEPTH controlMIXING control

I To play source with reverb effect1. Set the TAPE switch of the integrated amplif ier towhich this unit is connected to ON.2. Play the source connected to the integrated

amplifier.3. Press the REVERBERATION switch to ON.4. Press the EFFECT switch to select the positionwhich provide the desired effect.5. Adjust the REVERB TIME and DEPTH controls toobtain the desired effect.I To play the cassette deck connectedto this unit

Press the TAPE switch to ON.Play the cassette deck.

lTo perform microphone mixing(Ka raoke singing-along)The microphone mixing feature of this unit can be used forsinging along with accompaniment music tape.1. Press the FUNCTION switch to SOURCE MlC.o The reverb effect is applied to both the source andmicrophone sounds.o To apply reverb effect only to the microphone sound,set the FUNCIION switch to MlC.2. Play the accompaniment music tape on the cas_sette deck connected to this unit.3. Adjust the MIXING control to balance the accom_paniment music and microphone sound volumes.o The tone can be adjusted by the graphic equalizer.I To record microphone mixing soundThe microphone mixing sound can be recorded on the tapedeck connected to the integrated amplifier.

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ln case of difficultyWhat appears to be a malfunction may not always be serious. lf your unit should not perform as expected, consultthe table below to see if the problem can be corrected before seeking help from your dealer or servicerepresentative.

Symptom Cause RemedyNo sound although AC is switched on.lndicator not illuminated o Poor AC plug connection o Check plug contact.No sound from LEFT and RIGHT o Speaker cables disconnected.o Volume control of amplifier fully

cou nterclockwise.o Tape monitor switch of amplifier set toSOURCE.o Tape monitor switch of graphic equal-izer or RA-S9 set to ON.

o Check speaker connections.o Turn up volume control.o Set tape monitor switch of amplifier toTAPE.o Set tape monitor switch to OFF exceptwhen using tape deck.

Sound from one side only o Speaker cords disconnected.o lnput or output cable disconnected.o Balance control of amplifier set to oneextreme or the other.o Check speaker connections.o Check input or output connections.o Adjust the balance control of amplifier.

SpecificationsReverberation timeReverberating time O - 2.5 sec. (Effect 1)Delay time .......... 30 - 80 msec. (Effect 2)Frequency response 1 0 Hz- 35 kHz, +0 dB,- 0.5 dBHarmonic distortion .... Less than 0.01 %l2O Hz-20 kHz, output 1 V)S,/N ratio ......... 100 dB (Short-circuited IHF-A network)Maximum output 7 V 11 kHz THD 0.01%.RL47 kO)Gain ............ .,-.................... 0 dBlnput impedance ............ 47 kAOutput impedance .... 600 OMic input sensitivity .. 1 mVMic input impedance 36 kOAttenuation .. -6 dB at 1 kHzlnput sensitivity ............. 150 mVPower consumption .................. ....... 18 WDimensions ........ W: 440 mm (17-5/16'lH: 74 mm (2-15/16')D: 278 mm (10-15/16')Weight (net) ............ 2.9 kg (6.4 lb)

KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changedwithout notice.