James Loudspeakers Speaker EMB User Manual

EMB / CINEMA SERIES SUBWOOFER  
OWNER'S MANUAL  
 
You'vemadeamarvelouschoice.........  
The James Loudspeaker EMB and Cinema Series subwoofers are designed and  
handcrafted to give you years of exceptional performance for both home theater  
and music enjoyment. In order to optimize the outstanding capabilities of your  
subwoofer, pleasereadthisOwner'sManualthoroughly.  
Unpacking  
After opening the top of the carton and removing the Owner's Manual, place the  
carton and contents on a carpeted surface. Roll the carton and contents over into an  
inverted position. Lift the carton off and clear of the contents. Carefully remove the  
remaining packaging from the speaker. We suggest saving the speaker packaging  
for futureuse.  
FIGURE 1  
2
 
CAUTION  
RISK OF ELECTRICAL SHOCK  
DO NOT OPEN  
!
CAUTION:To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts are  
inside. Refer servicing to qualified service personnel.  
The lightning flash with arrowhead symbol 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.  
The exclamation point with arrowhead symbol is intended to alert the user to the presence of important operating  
and maintenance (servicing) instructions in the literature 'accompanying the subwoofer.  
1. Read Instructions - All safely and operating instructions should be read carefully before the subwoofer is  
operated.  
2. RetainInstructions- The safety and operating instructions should be retained for future reference.  
3. Heed Warnings-Allwarningsonthesubwooferandintheoperatinginstructionsshouldbeadheredto.  
4. FollowInstructions-Alloperatinganduseinstructionsshouldbefollowed.  
5. Water and Moisture - The subwoofer should not be used near water - for example, near a bathtub, washbowl,  
sink, laundrytub, inawetordampbasement, nearaswimmingpool, orthelike.  
6. Carts and Stands -Thesubwoofershouldbeusedonlywithacartorstandrecommendedbythemanufacturer.  
7. WallorCeilingMounting-Thesubwoofershouldbemountedtoawallorceilingonlyasrecommendedby  
the manufacturer.  
8. Ventilation - The subwoofer should be situated so that its location or position does not interfere with its proper  
ventilation. For example, the subwoofer 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 impede the flow  
of air through the ventilation openings.  
9. Heat -The subwoofer should be situated away from heat sources such as heating radiators, heat registers,  
stoves, or other subwoofers or components that produce heat.  
10. Power Source - The subwoofer should be connected to a power supply only of the type described in the  
operating instructions or as marked on the subwoofer itself.  
11. 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 them or against them, paying particular attention to cords at plugs, convenience  
receptacles, and the point at which they exit from the subwoofer.  
12. Caution -Topreventelectricalshock, matchwidebladeof plugtowideslot, fullyinserted.  
13. Cleaning -Thesubwoofershouldbecleanedonlyasrecommendedbythemanufacturer.  
14. Non-use Periods - The power cord of the subwoofer should be unplugged from the outlet when it is left  
unused for extended periods of time.  
15. Object and Liquid Entry - Care should be taken that objects will not fall and liquids will not be spilled on the  
enclosure.  
16. Damage Requiring Service- The subwoofer should be serviced by qualified personnel when:  
a. the power supply cord or plug has been damaged.  
b. objects have fallen or liquid spilled into the subwoofer.  
c. the subwoofer has been exposed to rain.  
d. the subwoofer does not appear to operate normally or exhibits a marked change in performance.  
e. the subwoofer has been dropped or damaged.  
17. Servicing - The user should not try to service the subwoofer beyond what is described in the operating  
instructions.  
18. Overloading - Do not overload wall outlets, extension cords, or integral convenience receptacles as this can  
result in a risk of fire or electrical shock.  
19. Replacement Parts - When replacement parts are required, be sure the service technician has used  
replacement parts specified by the manufacturer or have the same characteristics as the original part.  
Unauthorizedsubstitutionsmayresultinfire, electricshock orotherhazards.  
20. Safety Check - Upon completion of any service or repairs to this product, ask the service technician to  
perform safety checks to determine that the product is in proper operating condition. All other servicing should be  
referredtoQualifiedservicepersonnel.  
3
 
Features and Controls  
Inputs:Low-Level(Line-Level)  
Inputs:High-Level(Speaker-Level)  
Outputs:Low-Level(Line-Level)  
SwitchablePhaseControl0or180  
CrossoverBypassSwitch  
VariableCrossoverAdjustment40-150Hz  
GainControl  
PowerSwitch  
Signal-SensingAutoPowerOn/Off  
4
 
PHASE CONTROL - This switch pennits you to set or reverse the subwoofer  
output to o (in phase) or 180 (out of phase). This will correct for possible  
mismatch (boominess or lack of output) between the subwoofer and your main  
speakers. The best way to make this adjustment is to listen and pay close  
attention to the low frequency output. The correct position will produce clear and  
evenbassresponse. Mostoftenthecorrectsettingwillbeat"0".  
CROSSOVER BYPASS SWITCH - If your A/V receiver or processor has an  
internal 80 Hz or 100 Hz subwoofer crossover, we recommend setting this switch  
to'Bypass'.  
VARIABLE CROSSOVER ADJUSTMENT - (set the Crossover Bypass Switch to  
'Variable') The crossover adjustment control permits you to adjust the upper  
limit of the subwoofer frequency response from 40 - 150 Hz. The subwoofer's  
output response will roll off above the frequency limit you set. Set the crossover  
frequency so that there is a smooth transition from the subwoofer to the main  
speakers. Keep in mind that if your main speakers are smaller units with limited  
low frequency output, you may want to select a higher frequency (i.e. 100-120  
Hz) than you would with larger main speakers. If you have larger main speakers,  
we suggest you start by setting the crossover adjustment at about 80 Hz, or  
possiblylower.  
GAIN CONTROL - To balance the output of your subwoofer to your main  
speakers adjust the subwoofer Gain Control to the one-third (1/3) position and  
thenadjustaccordingly.  
POWERSWITCH -Masteron/offpower.  
AUTOMATIC POWER ON / OFF - With the Power Switch on, the subwoofer will  
automatically turn itself on (green light) when it senses an audio signal. After  
about 10 minutes without a signal, the unit will automatically switch to a standby  
mode(redlight).  
5
 
Connections and Installation  
One of the features of James Loudspeaker subwoofers is that you have a number of  
installation options. Please read the information in this section to determine which  
installation option is best for your system.  
!! TURN OFF THE POWER TO YOUR ENTIRE SYSTEM PRIOR TO INSTALLATION !!  
LOW-LEVEL (LINE-LEVEL) CONNECTION - Install the supplied RCA type Y-  
connector to both Low Level Left and Right Inputs of the subwoofer. Use a single  
RCA cable to connect your subwoofer directly to the Subwoofer Out on your A/V  
receiver or processor. Note: You may utilize the subwoofer Low-Level Outputs to  
hook up asecondsubwoofer.  
HIGH-LEVEL (SPEAKER LEVEL) CONNECTIONS - You may choose to follow  
Schematic A or B to connect your subwoofer using the High-Level Input terminals.  
Use additional speaker wire as required for hook up. The schematic you select is a  
matter of convenience as there will be no difference in performance between the  
wiring options. Be sure to maintain correct polarity when making all connections:  
Black(negative)toBlack, Red(positive)toRed.  
!! DO NOT USE BOTH THE LOW-LEVEL AND HIGH-LEVEL CONNECTIONS SIMULTANEOUSLY. !!  
6
 
Placement  
Subwoofers produce "non-directional" audio frequencies. Unlike other speakers,  
they produce a sound that does not seem to come from any specific point but this  
does not mean that you can place your subwoofer anywhere in the room - quite to  
thecontrary. Frequencyresponseandoutputareinfluencedbyplacement.  
As each room is acoustically unique it is recommended that you experiment with  
the placement of your James subwoofer to optimize its' performance. Frequency  
peaks and/or nulls (boominess or lack of bass response) can usually be corrected  
with proper subwoofer placement. Often, finding the best subwoofer location for  
a given room is to first temporarily place the subwoofer in the listening position  
'sweet spot'. Walk around the room and listen at different locations for the best  
'smooth'bassresponse. Placeyoursubwooferatornearthatlocation.  
When placing your subwoofer in its final position, make sure the speaker faces  
forward, standing upright. Do not place the subwoofer near sources of heat  
and/ormoisture.  
Care and Maintenance  
Special care should be taken to not scratch or damage your subwoofer. Cloth grills  
should be removed prior to cleaning and cleaned separately using a brush and low  
lint collector. Avoid direct contact with the speaker drivers to prevent possible  
damage. Never use paper products or anything abrasive to clean your speaker's  
finish. Useadamplintfreeclothifnecessary.  
For high gloss finishes we recommend using a mild spray cleaner and soft flannel  
cloth. Small surface scratches can often be buffed out with care by hand. Use only  
liquid polish suitable for fine automotive finishes. CAUTION: The use of any  
polishing product could cause the finish to rub through. Please contact James  
Loudspeaker directly if you have any questions regarding the care and  
maintenanceofyourspeakers.  
7
 
Trouble shooting  
Ifaproblemshouldoccur, checkthefollowing:  
• Verify that your subwoofer is plugged in.  
• Is the Power Switch on?  
• Is the unit receiving an input signal?  
• Are all the subwoofer controls properly set?  
• If the power does not come on, unplug the unit and  
then check the fuse.  
If all the above has been checked and the unit still will not function, then you may  
require a trained technician. Carefully pack your subwoofer in its original carton  
and return itto yourauthorizedJamesLoudspeaker dealer.  
Warranty  
Warranty information:  
2 years electronics, 5 years speakers.  
All specifications subject to change without notice.  
8
 
Notes and Information  
Product  
Model No.  
Serial No.  
Finish  
Purchase Price  
Date of Purchase  
Dealer's Name  
Setup Notes  
9
 
871 Cotting Court, Suite G, Vacaville, CA 95688  
Ph. (707) 449-0880 | Fax (707) 449-0881  
 

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