KENWOOD SS-992 Air Surround Processor Instruction Manual

AV SURROUND PROCESSOR
SS-992
INSTRUCTION MANUAL
KENWOOD CORPORATION
B60-0800-10 JA SI D (K,P,M,X,Y)AP

Introduction

Your choice of this product indicates that you are a devotee 10 excellence in sound reproduction.
We appreciate your patronage and take pride in the long tradi- tion of quality components that our company represents.
S0 that you can get the most out of your unit, we suggsst that You take the time to read through this manual before you hook up and operate your system. This willacquaint you with oper- ating features and system-connection considerations so that your listening ploasure wil be enhanced right from the start You will notice that in al aspects of planning, enginering, styling, operating convenience and adaptabilty we have sought to anticipate your needs and desirs.
Keep this manual handy for future reference.

For your records
Record the serial number, found on the back of the unit, in the spaces designated on the warranty card, and in the space.
provided below. Refer to the model and serial numbers ‘whenever you call upon yaur dealer for information or service on this product.
Model…………………………………………
Serial Number…………………………………

Unpacking
Unpack the unitcarefuly and make sure that al acoessories are put aside so they will not be lost.
Examine the unit for any possibility of shipping damage. If your unitis damaged orfait to operate, notify your dealer immedi- ately. If your unit was shipped to you directly, notify the ship- ping company without dlay. Only e corsignee (e porson or company receiving the unitcan il a clam against the car- vir for shipping damage.
We recommend tha you retsin the oriinal carton and pack- ing materials for use should you transport or ship the unit in the future.

Manufactured under license from Dolby Laboratories Licensing Corporation. Additionally licensed under one or more of the following patents : U.S. numbers 3,632,886, 3,746,792 and 3,959,590 ; Canadian numbers 1,004,603 and 1,037,877.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

Accessories
Audio cord …………………………………..2 System control cord ……………………………..1 AC plug adaptor ………………………………………1
(except for some areas) For the unitwitha European AC plug n areas other than Europe.

Caution: Read this page carefully to ensure safe operation.
Before applying power

For the U.S.A. and Canada
Important!
Units shipped to the U.S. and Canada are designed for operation on 120 volts AC only .
CAUTION: 70 PREVENT ELECTRIC SHOCK DO NOT USE THE AC PLUG WITH AN EXTENSION CORD, RECEPTACLE  OTHER OUTLET UNLESS THE BLADES CAN BE FULLY IN- SERTED TO PREVENT BLADE EXPOSURE.

For the United Kingdom
Important!
Units shipped to the UK. are designed for operation on 240 volts AC only.
‘The mains plug must be removed from the wall socket prior to any internal examination.
The wires in this mains lead are coloured in accordance with the following code:
Blue ……………………………………. Neutral
Brown ………………………………….. Live

The wires in this mains lead must be connected to the termi-nals in the plug as follows:
Wire colour ………………….Plug torminal marking
Bluo …………………………………… N or Black
Brown …………………………………. L or Red Notes:

1. If a 13-amp plug is used, this must be fitted with a 5-amp fuse.
2. If a 3-pin plug with earthing contact s used, no wire must be connected 1o the F terminal.

For Australia and Europe
Important!
Urits shippec to Austalisare designed fo opsration on 240 AC only.
Units shipped to Europe ara designed for oporation on 230 V AC ony.

For other countries
Important!
Units shipped to countres other than the above countries are ‘equipped with an AC voltage selector switch on the rear panel.
Reer 1o the following paragraph for the proper setting of this switch.
AC voltage selection
This unit operates on 110-120 or 220-240 volts AC. The AC voltage selector switch Tyoe A or Type B on the rear panel is set to the voltage that prevails in the area to which the unit is shipped. Before connecting the power Gord to your AC out- let, make sure that the sating posiion of this switch matches your line voltage. If not, it must be set o your voltage in ac- cordance with the following direction
Note:
Our warranty does not cover damage caused by excessive fne voliage due to improper seting of the AC voltage selector switch.

Safety precautions
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE, REFER SER- VICING TO QUALIFIED SERVICE PERSONNEL.
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERAL TRIANGLE, 18 INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED “DANGEROUS VOL- TAGE” WITHIN THE PRODUCT’S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) IN- STRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE.

IMPORTANT SAFEGUARDS
Please read all of the safety and operating instructions before operating this unit. For best results, follow all warnings placed on the unit and adhere to the operat- ing and use instructions. These safety and operating in- structions should be retained for future reference.

1. Powaer sources — The unit should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.

2. 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, pay particular atiention to cords at plugs, convenience receptaces, and the point where they exit from the unit
   Never pul o strtch the cord.

3. Grounding or polarization — The precautions should be taken so that the grounding or polariza- tion means of this unit is not defeated

4. Ventilation — The unit should be situated so that its location or position does not interfere with its proper ventilation.
   To maintain good ventilation, do not put records or a table-cloth on the unit. Place the unit at least t0 cm away from the walls
   Do not use the unit on a bed, sofa, rug or similar surface that may block the ventilation openings.

5. Water and moisture — The unit should not be used near water — for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet base- ment, or near a swimming pool, etc.

6. Temperature — The unit may not function properly if used at extremely low, or freezing tempera- tures. The ideal ambient temperature is above +6°C (41°F).

7. Heat — The unit should be situated away from heat sources such as radiators, heat registers, stoves, or other units (including amplifiers) that produce heat.

8. Eloctric shock — Care should be taken 5o that ob- jects do not fall and liquid is not spilled into the en- closure through openings. If a metal object, such as a hair pin or a needle, comes into contact with the inside of this unit, a dangerous electric shock may result. For families with children, never permit chil- dren to put anything, especially metal, inside this unit.

9. Enclosure removal — Never remove the enclosure. If the internal parts are touched accidentally, a serious electric shock might occur.

10. Magnetic fields — Keep the unit away from sources of magnetic fields such as TV sets, speaker systems, radios, motorized toys or magnetized objects.

11. Cleaning — Do not use volatile solvents such as alcohol, paint thinner, gasoline, or benzinc, ctc. to clean the cabinet. Use a clean dry cloth.

12. Carts and stands — An appliance and cart com- bination should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the appliance and cart combination to overturn.

13. Nonuse periods — The power cord of the unit should be unplugged from the outlet when left un- used for a long period of lime.

14. Abnormal smell — If an abnormal smell or smoke is detected, immediately turn the power OH and pull out the power cord. Contact your dealer or nearest senvice center.

15. Damage requiring service — The unit should be serviced by qualified service personnel when:
    A. The power-supply cord or the plug has been damaged; or
    B. Objects have fallen, or liquid has been spilled into the unit; or
    C. The unit has been exposed to rain; or
    D. The unit does not appear to operate normally or exhibits a marked change in performance; or
    E. The unit has been dropped, or the enclosure damaged.

16. Servicing — The user should not attempt to ser- vice the unit beyond that described in the operating instructions. All other servicing should be referred to qualified service pérsonnel.

17. Outdoor antenna grounding — If an outside an- tenna is connected to the receiver, be sure the an- tenna system is grounded so as to provide some protection against voltage surges and built up stat- ic charges. Section 810 of the National Electrical Code, ANSIINFPA 70, provides information with respect to proper grounding of the mast and sup- porting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding con-ductors, location of antenna-discharge unit, connection
    to grounding electrodes, and requirements for the grounding electrode. See Figure.

18. Power lines — An ouldour antenna should be lo- cated away from power lines.

19. AC outlets — Do not connect other audio equip- ment with a power consumption larger than that specified to the AC outlet on the rear panel. Never connect other electrical units, such as an iron or woaster, 1o it to prevent fire or electric shock .

Note:

1. Itam 3 Is fot requited except for grounded or polarized equipment.
2. Item 17 and 18 are not required except for units provided with antenna torminals.
3. Item 17 comples with UL in the U.S.A.

System connections

Make connections as shown below. When connecting the related system components, refer also to the instruction manuals of the related components.
Do not plug in the power lead until all connections are completed.
Connection with KA-892, KA-893, KC-992 or KC-993

System control connection

• Be sure to insert the system control cord plugs fully into the SYSTEM CONTROL terminals.
• If the system control cord and audio cords are not connected properly, the automatic system governing remote control and system functions will not operate.

Preparations for operation A:
When this unit is connected to the TAPE 2/ADAPTOR jacks of the amplifier KA-892, KA-893, KC-992 or KC-993

Preparations for operation A:
When this unit is connected to the TAPE 2/ADAPTOR jacks of the amplifier KA-892, KA-893, KC-992 or KC-993

1. Set the switch on the amplifier rear panelto ADAPTOR. (The switch posi- tion should be changed while the power is OFF.)
2. Turn the powers of the components to ON.
3. Press the TAPE 2/ADAPTOR key on the amplifier front panel so that lights up.

• The VOLUME CONTROL of the amplifier is set automatically to the center position in about 20 seconds. The keys are invalid in this period.
• The overall volume is to be adjusted with the VOLUME CONTROL of this unit or with the remote contro! provided with the amplifier.
• When this unit is not to be used, press the TAPE 2/ADAPTOR key on the amplifier front panel so that goes out.

Notes:

1. Connect al cords firmly. If connections are looss, there could be loss of sound or noise produced.
2. When plugging and unplugging connection cords, be sure o first remove the power cord from the AC outlet. Plugging/unplugging connection cords without remova of the power cord can cause malfunctions or damage to the unit.
3. Do not connect up a power source which is larger than that ndicated on tho socket at the rear of the unit,

Connection with an ordinary amplifier or receiver other than KA-892, KA-893, KC- 992 or KC-993

Preparations for operation B:
When this unit is connected to an ordinary amplifier or receiver

1. Turn the powers of the components to ON.
2. Set the TAPE MONITOR switch of the amplifier of receiver to the monitoring (ON) position.
3. Set the volume control of the amplifier or receiver to around the center position.
   • The overs valum i 0 be adusted with the VOLUME CONTROL of this urit

Speaker connections.

1. Romove Insulation.
2. Twist wire tightly.
3. Push the lever.
4. Insert the wire.
5. Return the lever.

• Camnect spaskers rated st ohm or more o the SPEAKERS teminsts.
• Never sortcict he + and – pesker coce.
• If the feft 2nd right speakers are connected inversely or if the speaer cords are connected with reversed polarity, the sound becomes unnatural with smbiguous acoustic image positioning. 8 sure to connect the speakers and spoaker cords correctly.

Connection of PRE OUT jacks
Soundwillnot be outputfrom the speakersf they are connected directly tothe PRE OUTjacks. The outputiromthesejacks should be connected to speakers with builtin ampiifieror to exclusive amplifiers to which the speakers are connacted.

• Use these jacks if you want to lsten to the speakers with larger volumes of with diferent tones,

Controls and indicators

Operating instructions

Main features
This system incorporates the following Surround functions which can provide the feeling of presence in a concert hall or theater or the powerful effects of theater movies recorded with Dolby Surround audio.

1. PRO LOGIC : Whenvideosoftware carrying “ DOLBY SURROUND” mark is played, this mode provides the similar Dolby Surround effect to movie theaters.
2. 3 STEREO : The Dolby 3 Stereo mode uses an additional center speaker to improve the positioning of words, etc., when playing video software such as a movie in your home.
3. HALL/THEATER : HALL-………..A powerful sound effect, as if the listener is in a concert hall, can be obtained.
   THEATER ……………… A natural reverberation effect, like when viewing a movie in a movie theater, can be obtained with sources which are not recorded with Dolby Surround.

Speaker arrangements

Surround (rear) speakers can be placed with various arangements ccoring o th lstening room size ond ts raverberation cheracter- isios, Tho examplo chovwn i the ilustaton i o typicl oxomplo smong sevarel arrangements which allow eficent enjoyment of Surround effects. In addition to it, other amangements are also possile. Plasse install rear speakers according to your ndviduat Taste is wellos to the istening room.

When the rear speakers are not used DOLBY 3 STEREO mode Standard layout
DOLBY PRO LOGIC mode (NORMAL/WIDEBAND)![KENWOOD SS-992 Air Surround Processor

• Indicator 2](https://manuals.plus/wp-content/uploads/2024/02/KENWOOD-SS-992 -Air-Surround-Processor-Indicator-2.jpg)When the center speaker is not used DOLBY PRO LOGIC mode (PHANTOM), HALL/THEATER Delay time
  As shown in the example of illustration, the sound of piano played on the stage attains the ears of listener as a synthesis of the direct sound from piano, the indirect sounds which are reflected once or twice by the reflectors, ceiling and side and back walls, and the reverberation sounds which repeat infinite reflections until they fade out com- pletely.
  The indirect sounds always pass through longer routes compared to the direct sound. The delay between the direct and indirect sounds is called the DELAY TIME, and the level of the indirect or reverberated sounds ts called the PRESENCE LEVEL.
  The indirect sounds accompanied with delay play a very important role in providing better sound effects and the feeling of presence of concert halls, etc. The acoustic field also varies depending on the speaker arrangement. It is recommended to try various delay time setting to obtain the best sound field possible.

Dolby Surround field adjustment (DOLBY PRO LOGIC)
Preparations : Complete the “Preparations of operation A or B on page 6 or 7 before proceeding to the following.

1. Set the Dolby Surround mode.

2. Select the center mode. • Refe to column *Center made” below.

3. Turn on the test tone.

4. Adost tho volume balomcs.
   ① Prss the MODE key.• Every timo the key is prossed, the speaker generating the noisy test tone is changed.
   ( Holding the key depressed moves the test tone automatically every 2 seconds.)
   In NORMAL or WIDEBAND mode :In PHANTOM mode: ② Adjust the volume balance.• Repeat steps ① and ②, and adjust 5o that the test tone vol- umes are the same on all speakers.
   • The loval being adjusted is displayed.

5. Stop generating the test tone.

6. set the detay time.• Calculate the proper delay time for Dolby Surround by refer- ring to the illustration below.
   • The delay time can be adjusted in the range from 15 to 30 ms.
   • Once a delay time is set, it is automatically held in memory so the same delay time is displayed whenever Dolby Surround ts ewitchned ON later. Doloy timo (o) = 20ms 3ms (A~ B)
   A : Distance of front speaker (m)
   8 : Distance of rear speaker (m)

Center mode
Select one of the following center modes according to the type of the presence speakers in your system.
NORMAL : Use this mode with a center speaker of a compact size.
WIDEBAND : Use this mode with a center speaker of a medium or larger size.

• If you cannot identify whether your center speaker is of the medium or compact size, try both the NORMAL and WIDEBAND mode and use the one that can provide better sound positioning.
  PHANTOM : Use this mode when the center speaker is not used.

• Even without the center speaker, the signal is processed in a simulated manner to ensure proper center image positioning and provide the enjoyment of Dolby Surround.

Operation of Dolby Surround playback (DOLBY PRO LOGIC)
When video software carrying “ DOLBY SURROUND” mark is played, this mode provides the similar Dolby Surround effect to movie theaters.
Before using the Dolby PRO LOGIC mode, be sure to perform the “Dolby Surround field adjustment” proce- dure.

1. Set the Dolby Surround mode.

2. Check the center mode.
   • Normally, the last mode used is held in memory. If it is different from the required mode, select the mode which was used in step 2 of the “Dolby Surround field adjustment” (page 10).

3. Play a software program encoded with Dolby Surround.

4. Adjust the volume.• When the level balance of center and rear speakers is not good, perform the “Dolby Surround field adjustment” procedure again.

To return to normal stereo playback.

The Dolby 3 Stereo mode uses an additional center speaker to improve the positioning of words, etc., when playing video software such as a movie in your home.
3 STEREO adjustment
Preparations : Complete the “Preparations of operation A: B” on page 6 or 7 before proceeding to the following.

1. Set the 00 3 STEREO mode.

2. Select the center mode. .
   • Set the center mode to NORMAL if using a smail center speaker, or set to WIDEBAND if using a medium-sized or larger speaker.

3. Turn on the test tone. Adjust the center speaker volume.
   ① Press the MODE key.• Every time the key is pressed, the speaker generating the noisy test tone is changed. (Holding the key depressed moves the test tone automatically every 2 seconds.) .
   ② Adjust the volume.
   • Repeat steps ① and ②, and adjust so that the level of the center speaker is eqqual ta that of the left andright speak- ers.

4. Stop generating the test tone. Press the TEST TONE ON/OFF key.

3 STEREO playback

1. Set the 00 3 STEREO mode.
2. Check the center mode. • Normally, the last mode used is held in memory. If it is different from the required mode, select the mode which was used in step 2 of the “00 3 STEREO adjustment”.
3. Play a stereo software program or a Dolby surround program.
4. Adjust the volume.

To return to normal stereo playback

HALL/THEATER Surround play
Preparations : Complete the “Preparations of operation Aor B” on page 6 or 7 before proceeding to the following.

1. Select the Surround mode.• When a source is played in monaural, select “HALL”.

2. Set the delay time.• The delay time can be adjusted in the range from 2 to30 ms.
   • The delay time is displayed when the DELAY TIME key is pressed. Itcan be adjusted in 1.0ms step every time the key is pressed.
   • When the delay time is decreased : An atmosphere of a small hall, for example a jazz club, can be obtained.
   • When the delay time is increased : An atmosphere of a large hall, for example a concert hall, can be obtained.

3. Play a music source.
   ① Play a music source.
   ② Adjust the listening volume. ③ Adjust the rear speaker volume.

To return to normal stereo playback from Surround playback

In case of difficulty

What appears to be a malfunction may not always be serious. If your unit should not perform as expected, consult the table below to see if the problem can be correoted before secking help from your dealer or service representative.

•The VOLUME is set to the minimum posi- tion.
•The audio cords are disconnected.| •Connect them properly referring to “System connections”.
•Adjust the volume to a proper level.
•Check the audio cords connections.
Sound is not output from the Surround rear speaker and/or their sound is very small.| •The rear-speaker cords are disconnected.
•The REAR LEVEL is set to the minimum level.
•The BYPASS mode has been set. Or the Dolby 3 STEREO mode has been selected.
•The audio source is monaural.
(When the audio source is monaural, sound is not output from the rear speakers when the unit is set to the DOLBY SURROUND or THEATER surround position.)
•The TAPE 2/ADAPTOR key on the amplifier (KA-892,KA-893,KC-992 or KC-993) front panel is not depressed.| •Connect them properly referring to “Sys-tern connections”.
•Adjust the REAR LEVEL controls.
•Select a Surround mode (DOLBY SURROUND, HALL or THEATER).
•Set the surround position to HALL.
•Press the TAPE 2/ADAPTOR key so that
‘ADAPTOR I lights up.
Remote control unit provided with the amplifier (KA-892,KA-893,KC-992 or KC- 993) cannot be used.| •The TAPE 2/ADAPTOR switch on the ampli- fier rear panel is set to TAPE.
•The system control cords are disconnected.| •Set to ADAPTOR.
•Connect them properly referring to “Sys-tern connections”.

Notes:

1. This system is microprocessor-controlled, so malfunction may occur due to external noise or interterence noise. In such a case, unplug the power cord, plug it and turn power on again.
2. Do not use contact cleaners because it could cause a malfunction. Be specially careful against contact cleaners containing oil, for they may deform the plastic components.

Specifications

Caution : Read this page carefully to ensure safe operation.

Power Output
Continuous Rated Power Output (FTC)
Center
35 watts minimum RMS, at8 Ω, 1kHz with no more than 0.9% total harmonic distortion
Rear
15 watts per channel minimum RMS, both channels driven, at 8 Ω , 1 kHz with no more than 0.9% total harmonic distortion

Total harmonic distortion

Center …………………………………..0.08 % (1 kHz, 17.5 W, 8 Ω)
Rear ………………………………………….(1 KHz, 7.5 W + 7.5 W, 8 Ω)
Frequency Response
(LINE QUT) ……………………………………… 10 Hz ~ 40 kHz, 0 dB, -3 dB
Signal to Noise Ratio
(LINE OUT) ………………………………………. 95 UB (IHF A)
Input Sensitivity/lmpedance  …………………………………………….. 200 mV/47 kΩ
Output Level/Impedance
LINE OUT …………………………………………………..1 V/2.2 k Ω
PRE OUT…………………………………………………….. 1 V/2.2 k Ω
General
Power Consumption ………………………………… 90 W
AC Outlet (UNSWITCHED)
For the U.S.A. and Canada ………………………………… 1(25 W, 0.2 A max.)
For other Countrless …………………………………………….. 1 (25 W max.)
Dimensions………………………………………………………….WW 440 mm (17 ~ 5/16″)
H: 99mm( 3-7 8)
D: 285mm (11 -1/ 4)
Weight (net)…………………………………………………56 kg (12.3 Ib}

Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.

For CANADA
DOC REGULATION

“This digital apparatus does not exceed the CLASS B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.”
For the U.S.A.
FCC WARNING:
This equipment may generate or use radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made.

NOTE:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment may cause harmful interference to radio communications, if it is not installed and used in accordance with the instructions. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

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