JBL Electronic Keyboard Synthesis User Manual

SYNTHESIS  
OWNER’S  
MANUAL  
 
TABLE  
OF  
CONTENTS  
SECTION  
PAGE  
1.0 _______________ BASIC OPERATIONS  
1.1 Powering Up  
4
1.2 Basic Remote Control Operations  
1.3 Basic Cinema Operations  
1.4 Basic Music Operations  
1.5 Turning the System Off  
4–5  
5
6
7
2.0 __________ ADVANCED OPERATIONS  
2.1 Advanced Cinema Operations  
2.2 Advanced Music Operations  
8
14  
2.3 Advanced Remote Control Operations 17  
3.0 ______SERVICE AND MAINTENANCE  
3.1 General Service Policy  
3.2 Audio and Video Service  
19  
19  
4.0 __________CALIBRATION TEMPLATES  
4.1 Synthesis One  
4.2 Synthesis Two  
20  
21  
JBL Synthesis System  
Owner's Manual  
©1993 Harman Consumer Group  
JBL and Synthesis are registered trademarks of JBL Incorporated.  
All Rights Reserved  
Manual Designed by Harman Consumer Group,  
Marketing Services • Woodbury  
Written by James S. Weiss  
Illustrated by Terry Robbins  
JBL Consumer Products, Inc.  
80 Crossways Park West, Woodbury, NY 11797  
(516) 496-3400  
8500 Balboa Boulevard, Northridge, CA 91329  
(818) 893-0110  
 
1.0  
BASIC  
OPERATIONS  
This Section focuses on the basic operations required to  
power up the system, to use it, to make simple everyday  
adjustments to both its Cinema and Music functions,  
and to turn it off. More advanced adjustments are  
covered in Section 2: Advanced Operations. Your  
certified JBL Installer will be glad to overview these  
materials with you.  
1.1 Powering Up  
The system can easily and quickly be turned on using  
the Remote Controller, pictured on this page. Simply  
push the button marked POWER and the Surround  
Processor, Amplifiers, Equalizers, Crossovers, and  
Speakers will all automatically power up, in sequence.  
Next, turn on the Source Devices you want to use —  
VCR, Laser Disc player, CD, Television/Video, Audio  
Cassette Player.  
You can turn these on in any order.  
1.2 Basic Remote Control  
Operations  
Your JBL Synthesis Remote Control unit handles  
virtually all of the functions of the system. Basic  
Operations include Selecting Source Devices, and  
Adjusting the Master Volume.  
1.2.1 Selecting Source Devices  
Examine the lower half of the Remote Controller until  
you have found six buttons with labels above each.  
These buttons allow you to directly access a particular  
source device and play it through the system. The  
buttons are labeled “S-VID-1”, “S-VID-2, "VCR",  
“VDP”, “CD", and “AUX”. Your Installer, with your  
consultation, has determined the sources available for  
use in your system. Therefore certain buttons may be  
inoperative, corresponding to the sources not present.  
To select a source device, simply press the  
corresponding button. The surround processor will  
engage that source.  
4
 
BASIC  
OPERATIONS  
1.0  
1.2.2 Adjusting the Master Volume  
The Master Volume buttons at the top right hand part of  
the Remote Controller are used to adjust the Output  
Levels of the system. Press the button to make things  
Louder, and the button to make things Softer. These  
do not adjust the Input Levels of the Source Devices. In  
fact, we recommend that you do not do so. They have  
been set and calibrated to mesh flawlessly with the  
system, and adjusting them directly — either through  
the dials on their front panels or via their own separate  
Source Remote Controllers, can throw the system out of  
balance.  
NOTE: If, over time, you notice that one Source Device  
consistently sounds Too Loud or Too Soft, call your  
Certified Dealer. He or she will adjust the levels and  
re–set the new levels as your “Reference Levels” to  
which you can return if the system’s sound goes awry.  
1.3 Basic Cinema Operations  
1.3.1 Adjusting the Cinema Volume  
To adjust the Volume in Cinema Mode, make sure that  
the Video is powered up and that it has been selected as  
the source. Then simply adjust the volume or ▼  
using the MASTER VOLUME buttons.  
5
 
1.4 Basic Music Operations  
1.4.1 Adjusting the Music Volume  
To adjust the Volume in Music Mode, make sure that the  
appropriate Music Source Device is powered up and  
that it has been Selected as the Source. Then simply  
adjust the volume or using the MASTER  
VOLUME buttons, as shown on the left.  
Link Forward: See Section 2: Advanced Operations,  
page 8.  
1.4.2 Adjusting the Music Balance  
To adjust the Front/Back Balance in Music Mode, make  
sure that the appropriate Music Source Device is  
powered up and selected as the Source. To add more  
sound to the Rear Ambient Surround Speakers, press  
the button marked Ambience + on the remote  
controller. For less sound from the Ambient Surrounds,  
press the button. To restore the original pre–set  
balance, press the Center button, REF, which will set the  
system back to its Reference Levels.  
Again, if your adjustments do not produce the desired  
effects, consult with Section 2: Advanced  
Operations.  
If you are not able to adjust the system to your liking  
using the procedures outlined therein, call your  
Synthesis Dealer.  
6
 
BASIC  
OPERATIONS  
1.0  
1.5 Turning the System Off  
There is no preferred order of components when turning  
the system off. However, there is one caution you should  
follow:  
NOTE: Do not turn the system off while any Source  
Device is running and producing sound. Always make  
sure all Source Devices are in “Idle” before pressing the  
main POWER button.  
Failure to do this can produce a noticeable “pop”, and  
can, over time, damage your components. If you need to  
turn off the sound to the system suddenly, for example,  
to take a phone call or to reply to someone, press the  
MUTE button.  
Notes  
7
 
2.0  
ADVANCED  
OPERATIONS  
There are some Operations which go beyond the  
“basics” of the system and address its full array of  
functional capacities in detail. Before reading this  
Section, the Owner should have already read and  
mastered Section 1: Basic Operations. Your certified JBL  
Synthesis Installer will be glad to walk you through any  
or all of the information covered in this Section.  
2.1 Advanced Cinema  
Operations  
2.1.1 Ambience Level Adjustment  
If you feel that the degree of Ambience — sound  
coming from the Ambient Surround Speakers — is too  
high or too low, you can adjust it by pressing the  
AMBIENCE + and AMBIENCE – buttons. Pressing the  
AMBIENCE + button increases the sound level of the  
Surrounds; pressing the AMBIENCE – button  
decreases the level. To reset the level to the “Reference  
Level” as preset by your JBL Synthesis Installer, press  
the REF button once.  
Link Back: See Section 1, Page 4-7  
8
 
ADVANCED  
OPERATIONS  
2.0  
2.1.2 Panorama Adjustment  
Panorama refers to the degree of stereo separation  
generated by the Left and Right Main Speakers when  
listening to the simulated stereo of Mono recordings or  
movies. This can be adjusted by using the SOUND  
STAGE, CENTER, and buttons, located at the left  
side of the remote controller.  
Link Forward: See Mono Enhancer, under 2.1.8,  
page 13.  
Pressing the SOUND STAGE button increases the  
separation, spreading the sound further.  
Pressing the CENTER button reestablishes the preset  
Reference Level.  
Pressing the button with the button decreases the  
degree of Panorama or separation.  
2.1.3 Setting Time Delay  
Time Delay refers to the delay in onset of the Ambient  
Speakers compared to the Main LCR Speakers. The  
preset level is 15 milliseconds.  
For an added sense of spaciousness, the listener can  
press the DELAY button, which increases the delay  
from 15 to 30 mS in 5 mS steps. This can be effective  
with longer, narrower rooms, or with some sources  
which require a sound which is a bit more “echo–like”  
than standard. This enhanced setting applies more  
typically to Dolby Pro–Logic Surround and THX  
sources, but has additional applications in music,  
35mm and 70mm modes.  
Pressing the DELAY button reduces the Delay from  
30 back to 15 mS.  
2.1.4 Center Speaker Level  
Some listeners like more or less sound coming out of  
the Center Main Speaker. This can depend both on the  
listener’s ears and on the material generating the sound.  
In THX or Dolby Pro-Logic Surround modes the Center  
Channel should be left on. To do this, simply press the  
CENTER ON button. For some sources, some listeners  
will want to enhance the level of sound coming from the  
Center Speaker. To do this, press the CENTER BOOST  
Button.  
9
 
BASS EQ  
2.1.5 Woofer Equalization  
While the JBL Synthesis System is calibrated to provide  
awesome amounts of clear, clean bass, some listeners  
might prefer a touch more bass for some sources. This  
cannot be adjusted from the Remote Controller, but must  
be done using the BASS EQ dial to the left of the  
INPUT control on the Surround Processor.  
The preset bass is encoded at the off or zero position. To  
boost the bass level, slowly turn the dial clockwise a  
little at a time until it meets your auditory needs. A full  
17 db of boost is available, so go slow to avoid  
shocking the equipment or your ears.  
10  
 
ADVANCED  
OPERATIONS  
2.0  
2.1.6 Sibilant Filter  
The Sibilant Filter reduces the potential “leakage” of  
cinema dialogue from the Center channel into the  
Ambient Surround Channels. Engage it if you are having  
the sensation that the actors are talking off to the side of  
you or behind you.  
To activate this feature, press the button marked  
SIB FIL.  
2.1.7 Hi Freq. EQ  
Research conducted by LucasArts Entertainment showed  
that movie soundtracks which have been mixed for a  
large theater venue tend to sound overly bright when  
played back in a room under about 15,000 cubic feet.  
This is due to the natural tendency for high frequency  
sound to be attenuated as it travels through the air. Since  
the distances in a large theater venue are long compared  
to almost any home theater, this "HI FREQ EQ" can help  
restore the natural balance.  
Not all sources will benefit from this additional  
frequency contouring. Therefore, we have provided a  
button on your remote control which will  
activate/deactivate the "HI FREQ EQ" to suit your  
preference.  
11  
 
2.1.8 Cinema Modes  
The JBL Synthesis System is pre–configured for a  
number of Cinema Modes, each of which has been  
calibrated to take advantage of the unique properties of  
each mode. Press the appropriate button for the type of  
Cinema Source material you are using. Virtually all tapes  
and disks are labeled for this.  
70mm  
This mode increases Delay up to 50 mS. It also  
simulates a sense of Surround Sound by blending left  
and right front channel information and feeding it into  
the Ambient Surrounds.  
To activate this mode, press the button marked  
70mm MOVIE.  
35mm  
This uses a decoding matrix similar to Dolby Pro–Logic,  
but increases the frequency response on the Ambient  
channels and increases the Ambient Delay up to 50 mS.  
To activate this mode, press the button marked  
35 MM MOVIE.  
12  
 
ADVANCED  
OPERATIONS  
2.0  
THX  
This allows for the complete package of THX sound  
manipulations, and should be pressed when using any  
Source labeled as having THX–compatible sound or  
Dolby Stereo.  
To activate this feature, press the button marked THX.  
Dolby  
This home version of the cinema Dolby Surround  
technology provides audio performance virtually  
identical to a Dolby theater experience. With this Mode  
engaged, the Surround Processor’s sophisticated Dolby  
Pro-Logic circuitry reconfigures the steering logic  
constraints, and varies the Delay from 15 to 30 mS in  
increments of 5 mS.  
To activate this feature, press the button marked with the  
familiar Dolby logo.  
Mono Enhance  
Of course, most people still occasionally like to listen to  
old Monaural tapes or records or watch old Mono  
movies. JBL Synthesis allows you to do this without  
sacrificing the cinema or sound–stage audio quality of  
the system. Mono Enhance was designed for these  
sources, and creates a spatial effect comparable to the  
sensation of stereo.  
To activate this feature, press the button marked MONO  
ENHANCE.  
13  
 
2.2 Advanced Music  
Operations  
As we have discussed the Music System is virtually a  
“system-within-the-system”, and can operate separately  
from the Cinema Mode. Within the Music System, there  
are a number of adjustments you can make directly from  
your Remote Controller.  
2.2.1 Switching to the Music System  
Most listeners prefer to listen to Music in its classic  
“stereo” modality. This gives the perception that the  
listener is sitting in front of a bandstand, and that all of  
the sound is coming from the front of the room, where  
the band is visualized to be. To switch to this “pure  
stereo” mode, press the BYPASS button, which shuts  
off the Center Speaker and the Ambient Surrounds,  
thereby muting all of the Surround effects and engages  
the music speakers.  
Of course, other listeners like the sensation of being  
“inside the music”. With the Center Speaker engaged  
and the Ambients playing, it can feel as if you are in the  
middle of the orchestra. For this experience, do not  
press BYPASS.  
14  
 
ADVANCED  
OPERATIONS  
2.0  
2.2.2 Music Modes  
Of course, there is music and then there is music. The  
JBL Synthesis System allows you to configure it to play  
different types of music and to take advantage of their  
different characteristics.  
Rock  
The Rock Mode allows you to have the best of all  
possible worlds, giving you full stereo separation plus a  
high degree of ambience as well. This is true Stereo  
Surround like no other system can deliver – a feeling of  
converting your Media Room into one giant pair of  
headphones.  
In Rock mode, the Panorama function is engaged, and  
you can adjust the Delay up to 80 mS to give more or  
less “depth” to the sound.  
This mode also works well with most Electronic and New  
Age recordings as well.  
To engage this mode, simply press the ROCK button.  
Pop  
The Pop mode yields a more “frontal” sound than does  
the Rock mode. In Pop, the Ambient Surrounds each  
carry a monophonic signal, giving the impression of a  
concert hall presentation. Panorama is engaged and  
Delay can be set anywhere up to 80 mS.  
Pop mode works well for a wide variety of music,  
including Pop, Light Rock, Broadway show tunes, and  
some Rock as well.  
To engage this mode, simply press the POP button.  
15  
 
Jazz  
The operative word here is “live”, as the Jazz mode  
makes most music sources sound engagingly present.  
Again, the music’s perceived source is the front of the  
room, with a bit less exaggerated stereo separation, to  
make it sound as if a small combo is playing in your  
living room. The Ambient channel is in Mono, for  
spatiality only, and Panorama and Delay can also be  
adjusted for more or less of a sense of space, both  
front–to–back and side–to–side.  
This mode works well not just for Jazz recordings, but  
also for “New Jazz”, “Fusion Jazz”, and Blues.  
To engage this mode, simply press the JAZZ button.  
Hall 1  
This mode works best for small ensemble sounds,  
where you desire the most “pure” unprocessed sound  
possible. The Front channels are completely  
unprocessed, and a slight amount of stereo surround is  
extracted from the recording and sent through the  
Ambient Speakers. Delay is not an option in this mode.  
Instead, a special equalization curve which emulates the  
natural decay of live sound over distance is applied to  
the Ambient Channels. The listener has the sensation of  
being very close to a natural live performance.  
This mode works well for Chamber Music and virtually  
all Small–Ensemble Acoustic sources.  
To engage this mode, simply press the HALL 1 button.  
16  
 
ADVANCED  
OPERATIONS  
2.0  
Hall 2  
This mode has been designed for works on a broader  
acoustic canvas, like orchestral and operatic works. Like  
Hall 1, there is no processing of the front channels, and  
the Center Speaker is disengaged (although you can  
re–engage it using the CENTER button if you desire).  
The Ambient mix gives the sensation not of being right  
in front of the ensemble but rather of being in the  
“middle of the hall” with a larger ensemble. Delay can be  
set anywhere up to 80 mS.  
To engage this mode, simply press the HALL 2 button.  
2.3 Advanced Remote Control  
Operations  
2.3.1 Mute  
The Mute feature does exactly what it says it does —  
cuts Audio output. This allows you to answer the phone  
or have a conversation without shutting down the entire  
system.  
Mute all Audio, whether in Cinema or Music Mode, by  
pressing the MUTE button.  
17  
 
2.3.2 Front Panel Controls  
Notes  
Input Level Knob  
Caution: This knob should not be used for volume  
control. It should be approximately 12 o’clock or straight  
up. The only time it should be turned down is if you  
notice the LED Level Light going into the red. The unit is  
then being overloaded and at any output level distortion  
is being produced.  
Bass EQ Knob  
While the JBL Synthesis System is calibrated to provide  
awesome amounts of clear, clean bass, some listeners  
might prefer a touch more bass for some sources. This  
cannot be adjusted from the Remote Controller, but must  
be done using the BASS EQ dial to the left of the  
INPUT control on the Surround Processor.  
The preset bass is encoded at the off or zero position. To  
boost the bass level, slowly turn the dial clockwise a  
little at a time until it meets your auditory needs. A full  
17 db of boost is available, so go slow to avoid  
shocking the equipment or your ears.  
2.3.3  
The balance of these switches perform the identical  
function as the remote so please refer to Remote  
Instructions for their functionality.  
18  
 
3.0  
SERVICE  
SERVICE  
3.0  
Once the system is in place, it should need little or no  
attention. The components are of the highest quality,  
and many are built to withstand the rigors of  
professional use. This Section outlines service policies  
and warranties.  
3.2 Audio Service  
• Electrical components  
All Electronic components are fully warranted for two  
years, including parts and labor. Any problems  
occurring within the two year warranty period will be  
covered by the JBL Synthesis exclusive “48-hour no-  
down-time” Service Policy.  
3.1 General Service Policy  
The JBL Synthesis System is backed by our exclusive  
48–hour (no-down-time) Service Policy”.*  
• Loudspeakers  
Any time within a component’s warranty period that you  
report trouble to your certified JBL Synthesis Dealer, he  
will determine the nature of the problem and contact JBL  
within 24 hours.  
All Loudspeakers are fully warranted for five years,  
including parts and labor. Any problems occurring  
within the five year warranty period will be covered by  
the JBL Synthesis exclusive “48-hour no-down-time”  
Service Policy.  
If a damaged component is within the first 30 days of its  
warranty period JBL will send your JBL Synthesis Dealer  
a replacement unit, to be installed in your system, within  
the specified 24 hour period, after JBL has been  
contacted.  
The vast majority of service calls for Audio will simply  
require resetting the system. Call your certified JBL  
Synthesis Dealer.  
If more than 30 days of your component’s warranty  
period has lapsed, and the damaged component is still  
covered under warranty, JBL will provide your JBL  
Synthesis Dealer with a loaner unit within the same 24  
hour period to be installed in your system, and your unit  
will be sent to JBL for repair.  
An Installer will make an appointment to reset the  
system. On arrival, he or she will refer to the Templates  
in the last section of your Manual, and will reset any  
components which require it.  
Call your certified JBL Synthesis Dealer for a  
replacement unit, or to initiate the use of a loaner. If for  
any reason you are dissatisfied or need additional  
assistance, call:  
This policy applies to systems purchased in the USA  
only. Outside the USA please contact the local distributor  
for warranty service.  
JBL Synthesis Client Service Manager  
(800) 645-7484, extension 233  
On Long Island call  
(516) 496-3400, extension 233  
*Weekends and holidays are excluded from this policy.  
19  
 
4.0  
CALIBRATION  
TEMPLATES  
CALIBRATION  
TEMPLATES  
4.0  
4.1 Synthesis One  
DATE: _________________________  
OWNER: _________________________  
INSTALLER _______________________  
20  
 
CALIBRATION  
TEMPLATES  
4.0  
4.2 Synthesis Two  
21  
 
Notes  
22  
 
JBL Consumer Products, Inc.  
80 Crossways Park West, Woodbury, NY 11797  
(516) 496-3400  
8500 Balboa Boulevard, P.O. Box 2200, Northridge, CA 91329  
(818) 893-0110  
Part No. SYNOMCG 4/94  
 

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