JBL Stereo Amplifier AVA7 User Manual

JBL PERFORMANCESERIES  
OWNER’S GUIDE  
AVA7  
HIGH-PERFORMANCE  
7-CHANNEL  
POWER AMPLIFIER  
 
READ FIRST!  
IMPORTANT SAFETY PRECAUTIONS!  
13. Unplug this apparatus during light-  
18. An outside antenna system should  
not be located in the vicinity of over-  
head power lines or other electric light  
or power circuits, or where it can fall  
into such power lines or circuits. When  
CAUTION  
ning storms or when unused for long  
periods of time.  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
14. Refer all servicing to qualified  
service personnel. Servicing is required  
when the apparatus has been damaged installing an outside antenna system,  
CAUTION: To reduce the risk of electric shock,  
do not remove cover (or back).  
No user-serviceable parts inside.  
Refer servicing to qualified service personnel.  
in any way, such as power-supply cord  
or plug is damaged, liquid has been  
spilled or objects have fallen into the  
apparatus, the apparatus has been  
exposed to rain or moisture, does not  
operate normally, or has been dropped.  
15. Do not use attachments not recom-  
mended by the product manufacturer,  
as they may cause hazards.  
extreme care should be taken to keep  
from touching such power lines or cir-  
cuits, as contact with them might be  
fatal.  
19. Do not overload wall outlets, exten-  
sion cords, or integral convenience  
receptacles, as this can result in a risk  
of fire or electric shock.  
CAUTION: To prevent electric shock,  
do not use this (polarized) plug with  
an extension cord, receptacle or other outlet  
unless the blades can be fully inserted to  
prevent blade exposure.  
The lightning flash with arrowhead symbol,  
within an equilateral triangle, is intended to  
alert the user to the presence of uninsulated  
“dangerous voltage” within the product’s  
20. Never push objects of any kind into  
this product through openings, as they  
enclosure that may be of sufficient magnitude to constitute  
a risk of electric shock to persons.  
16. This product should be operated  
The exclamation point within an equilateral  
triangle is intended to alert the user to the  
presence of important operating and  
only from the type of power source indi- may touch dangerous voltage points or  
cated on the marking label. If you are  
not sure of the type of power supply to  
your home, consult your product dealer  
or local power company. For products  
short-out parts that could result in a fire  
or electric shock. Never spill liquid of  
any kind on the product.  
maintenance (servicing) instructions in the  
literature accompanying the appliance.  
21. The apparatus shall not be exposed  
1. Read these instructions.  
intended to operate from battery power, to dripping or splashing, and no objects  
2. Keep these instructions.  
or other sources, refer to the operating  
instructions.  
filled with liquids, such as vases, shall  
be placed on the apparatus.  
3. Heed all warnings.  
4. Follow all instructions.  
17. If an outside antenna or cable  
system is connected to the product,  
be sure the antenna or cable system  
is grounded so as to provide some  
protection against voltage surges  
and built-up static charges. Article  
810 of the National Electrical Code,  
ANSI/NFPA 70, provides information  
with regard to proper grounding of the  
mast and supporting structure, ground-  
ing of the lead-in wire to an antenna  
discharge unit, size of grounding con-  
ductors, location of antenna-discharge  
unit, connection to grounding elec-  
trodes, and requirements for the  
grounding electrode. See Figure A.  
22. Do not attempt to service this prod-  
uct yourself, as opening or removing  
covers may expose you to dangerous  
voltage or other hazards. Refer all serv-  
icing to qualified service personnel.  
23. When replacement parts are  
required, be sure the service technician  
has used replacement parts specified  
by the manufacturer or that have the  
same characteristics as the original  
part. Unauthorized substitutions may  
result in fire, electric shock or other  
hazards.  
24. 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.  
25. The product should be mounted to a  
wall or ceiling only as recommended by  
the manufacturer.  
5. Do not use this apparatus near  
water.  
6. Clean only with a dry cloth.  
7. Do not block any ventilation  
openings. Install in accordance  
with the manufacturer’s instructions.  
8. Do not install near any heat sources  
such as radiators, heat registers, stoves  
or other apparatus (including amplifiers)  
that produce heat.  
9. Do not defeat the safety purpose of  
the polarized or grounding-type plug. A  
polarized plug has two blades with one  
wider than the other. A grounding-type  
plug has two blades and a third ground-  
ing prong. The wide blade or the third  
prong is provided for your safety. If the  
provided plug does not fit into your out-  
let, consult an electrician for replace-  
ment of the obsolete outlet.  
10. Protect the power cord from being  
walked on or pinched, particularly at  
plugs, convenience receptacles and  
the point where they exit from the  
apparatus.  
Figure A.  
11. Only use attachments/accessories  
specified by the manufacturer.  
12. Use only with the cart, stand,  
tripod, bracket or table specified by the  
manufacturer or sold with the appara-  
tus. When a cart is used,  
Example of Antenna Grounding as per  
National ElectricalCode ANSI/NFPA 70  
use caution when mov-  
ing the cart/apparatus  
combination to avoid  
injury from tip-over.  
3
HCGUL1492/6500 04/2004 EN  
 
INTRODUCTION AND FEATURES  
Auto Turn-On and Power-Sequencing  
Circuitry  
electrical connection between the sig-  
nal path and the protection circuitry. As  
a result, there can be no coloration of  
the music, no interaction between pro-  
tection and amplification, until certain  
thresholds are exceeded, at which  
point the channel(s) would turn off  
completely.  
INTRODUCTION  
Congratulations on your purchase of  
this JBL Performance Series AVA7  
When used in a JBL Performance  
System, the AVA7 can be turned on  
automatically whenever the surround  
processor is activated. No longer do  
you have to get out of that chair to turn  
on the various pieces of equipment in  
your entertainment system; just one  
touch on the remote control of the sur-  
round processor, and you’re a few sec-  
onds away from a truly impressive  
audio presentation!  
power amplifier! You have purchased a  
product that embodies the best of what  
JBL has learned about the emotional  
power of audio reproduction in more  
than fifty years of preeminence in the  
field. This amplifier has been designed  
and crafted to provide the user with  
a high level of sonic performance.  
Special attention has been paid to min-  
imizing the number of components in  
the audio signal path, resulting in  
extremely low distortion, excellent  
transient response, and wide dynamic  
range. JBL products set new bench-  
marks in audio technology, and, when  
used as part of a complete JBL  
Modern amplifiers produce more  
power per channel (and frequently  
have more channels) than those of the  
traditional two-channel stereo era. Due  
to the high current demands of power  
amplifiers at the instant of turn-on,  
the AVA7 amplifier is equipped with  
a power-sequencing circuit that  
turns on each amplifier in a delayed  
sequence, avoiding the large instanta-  
neous current demand (and possible  
circuit breaker tripping) that may occur  
should more than one amplifier turn on  
at the same instant.  
Performance Series system, will bring  
the ambience and acoustics of some of  
the world’s greatest concert halls and  
theaters into your home.  
To obtain the best performance from this  
amplifier, please be sure to completely  
read this user’s manual and use the  
AVA7 only in accordance with its  
instructions.  
Quiet Cooling  
The AVA7 utilizes two fans to cool the  
amplifier channels, ensuring long-term  
reliability. To reduce fan noise to an  
absolute minimum, a thermal-sensing  
and control circuit, which senses  
increases in temperature within the  
amplifier and powers the fans at a  
speed proportional to that temperature  
increase, has been incorporated in the  
JBL Performance Series AVA7. As a  
result, the fan is never turning faster  
than necessary, and most of the noise  
that is generated is masked by the pro-  
gram being listened to.  
FEATURES  
The JBL Performance Series AVA7  
power amplifier features the following:  
Full Seven-Channel Operation  
The AVA7 has been designed to inte-  
grate well into the world of multichan-  
nel audio. It is designed to reproduce  
the latest development in home theater  
audio – rear channels, in addition to  
side channels – to produce a truly  
enveloping sound field. When coupled  
with a high-quality subwoofer amplifier,  
it is a solid foundation on which to  
build a high-performance home cinema  
system that will astound the listener  
with its power and realism.  
Comprehensive and Isolated Circuit  
Protection  
The AVA7 amplifier employs sophisti-  
cated protection circuitry (one for each  
channel) that senses many possible fault  
conditions, such as shorted loudspeaker  
wires or excess power demand, and  
turns the affected channel(s) off until  
the fault condition is removed, at which  
time normal operation is automatically  
restored. While protection of this sort is  
not uncommon in today’s well-designed  
amplifiers, a remarkable feature of the  
JBL Performance AVA7’s protection cir-  
cuits is that they are optically coupled  
to the signal circuit; there is no direct  
High Power Capability  
The AVA7 provides a satisfying 125  
watts per channel of distortion-free  
audio (<0.01% THD) into 8 ohms.  
Because of their power capabilities,  
JBL Performance Series amplifiers have  
an extremely wide dynamic range, an  
element critical to realistic home cinema.  
Sound levels equal to those at original  
performances are easily re-created in  
even the largest of home listening  
environments.  
4
 
OPERATION AND CONTROLS  
¡
1. Power Switch  
black terminal. Wire the speakers  
Fuse Replacement  
Pushing this button is all that is required  
to turn on the AVA7 if it is not part of a  
JBL Performance Series system and  
the Main Switch § is in the On posi-  
tion. If the amplifier is used as part of a  
JBL Performance Series system, the  
Main Switch § and the front-panel  
push button Power Switch ¡ should  
both be left in the On position. The  
amplifier will then turn on when the  
surround processor is activated. See  
the descriptions of the Main Switch §  
and Trigger Jacks for more informa-  
tion on turning on the AVA7.  
with the proper polarity; reversing any  
speaker’s connections will not damage  
either the speaker or the amplifier, but  
will result in poor low-frequency per-  
formance and imprecise imaging.  
To remove the fuse, turn off the power  
switch and disconnect the power plug  
from the AC mains. Remove the fuse  
holder by lifting up the latch at the  
bottom and pulling the holder out.  
When looking at the fuse holder as  
installed on the back panel, the fuse on  
the right hand side is the active fuse.  
The fuse on the left is a spare. Remove  
the fuse on the right side and visually  
inspect it to see whether it has opened;  
if it has, discard it and replace it with  
the spare glass fuse. Reinstall the  
holder, and reconnect the AC mains.  
If after replacing the fuse the unit is  
inoperative, service is required; contact  
your JBL dealer.  
WARNING: Terminals marked with the  
flash symbol are hazardous when live.  
External wiring connected to those ter-  
minals requires installation by trained  
personnel, and the use of ready-made  
lead cords.  
NOTE: The minimum load impedance  
that this amplifier can handle safely is 8  
ohms per channel. Using lower imped-  
ance loads can damage the unit and  
will void your warranty!  
2. Standby Indicator  
This indicator on the front-panel Power  
Switch ¡ will glow red when the  
amplifier is in the “standby” mode,  
whether operating as part of a JBL  
Performance Series system or not.  
When the AVA7 is in the “on” mode,  
this light will turn blue.  
Wire Run Length Minimum Gauge  
WARNING: Always unplug the  
amplifier from the AC mains  
before removing any fuse.  
Up to 20' (6m)  
Up to 50' (15m)  
Up to 100' (30m)  
16  
14  
12  
IMPORTANT:  
Never install a fuse that has a  
higher rating than the one specified on  
the back panel of the amplifier or in the  
owner’s manual.  
5. External Fuses  
3. Input Jacks (Ch. 1 Through Ch. 7)  
Seven of the output signals from the  
JBL Performance Series AV1 digital  
processor are connected to the seven  
input jacks. We suggest the channels  
be assigned as follows:  
The AC mains fuse is located on the  
back panel of the amplifier. This fuse  
will not blow unless the amplifier is  
asked to produce more power than its  
design allows for a prolonged period or  
to prevent excessive current draw that  
could damage internal components  
during a fault condition. The amplifier  
has been designed to operate under  
virtually all conditions. Even momentary  
short-circuiting of the output (speaker)  
connections will not ordinarily damage  
the output circuitry (although this will  
activate internal protection circuitry  
and could cause one or more of the  
channels to temporarily mute until the  
circuit automatically resets).  
6. Main Switch  
Place this switch in the On position at  
all times during normal use.  
Ch. 1  
Ch. 2  
Ch. 3  
Ch. 4  
Ch. 5  
Ch. 6  
Ch. 7  
Right Rear  
Right Side  
Right Front  
Center  
Left Front  
Left Side  
Left Rear  
7. Trigger Input and Output Jacks  
When using the AVA7 amplifier in a JBL  
Performance Series system with the  
AV1 Digital Surround Processor, you  
will need to use the trigger cable set  
included with the AV1. Connect the DIN  
end of the cable to the Trigger Output  
DIN jack on the rear panel of the AV1,  
and connect the 1/8" (3.5mm) plug to  
the Trigger Input Jack on the rear  
panel of the AVA7.  
4. Speaker Terminals  
Connect the speakers to these termi-  
nals, following the normal convention;  
wire the “+” side of the speaker to the  
red terminal, and the “–” side to the  
5
 
£
§
¢
If the AVA7 is used with another com-  
ponent (other than the AV1) that uses a  
trigger for automatic turn-on and turn-  
off, make sure the other component’s  
output is between 3 and 24 volts DC.  
Connect the trigger output jack on the  
other component to the 1/8" (3.5mm)  
Trigger Input Jack on the AVA7  
using one of the cables included with  
the AVA7. Whenever a power-on trig-  
ger is used to operate the AVA7, make  
sure that the AVA7’s Main Switch §  
and Power Switch ¡ are both in the  
On position. Since the front-panel  
Power Switch ¡ on the AVA7 is a low-  
throw switch, sometimes it may be dif-  
ficult to confirm whether this switch  
is in the On or Standby position. To  
ensure that this switch is in the On  
position, disconnect the trigger input  
cable from the AVA7, make sure the  
Main Switch § is still on, and then  
press the Power Switch ¡ until its  
LED Standby Indicator glows blue.  
Then reconnect the trigger cable to the  
AVA7 Trigger Input . If the Trigger  
source (JBL Performance AV1 or  
connect the Trigger Output Jack to  
the first component’s trigger input using  
one of the cables included with the  
AVA7, and then connect all compo-  
nents in daisy-chain fashion. 12V DC  
voltage at the AVA7 Trigger Output  
Jack becomes available approxi-  
mately two seconds after the AVA7  
receives a 12V DC trigger input signal.  
This is done to prevent high-current  
draw on your home’s AC mains supply,  
which could be caused by multiple  
high-power audio components turning  
on at the same time.  
8. AC Inlet  
Your AVA7 is shipped with an IEC-type  
removable power cord that mates with  
the AC inlet on the rear panel. To ensure  
proper operation, use the supplied  
power cord. This amplifier is NOT a  
multivoltage unit; using a power cord  
that is not compatible with a 120V, 60Hz  
AC wall receptacle will void the warranty.  
another source unit featuring power-on  
trigger) is on, the AVA7’s LED Standby  
Indicator will continue to glow blue.  
If the Trigger source is off or in standby,  
the AVA7 will also go into standby and  
its LED Standby Indicator will turn  
red. Once this setup is complete, the  
AVA7 will automatically turn on and off  
along with the source unit.  
If you wish to have other components  
in your system turn on via trigger, make  
sure they are compatible with the 1/8"  
(3.5mm) 12-volt DC Trigger Output Jack  
on the AVA7. If they are, you may  
6
 
CONNECTING YOUR JBL PERFORMANCE SERIES SYSTEM  
SUGGESTED RACK-MOUNTING ORDER  
GENERAL INFORMATION  
Top  
#1  
A JBL Performance Series system  
installation incorporates one power  
amplifier, in addition to the amplifier(s)  
used to power one or more sub-  
woofers. If your speaker complement  
includes the JBL Performance Series  
AV1  
PS1400 powered subwoofer module,  
you may use the amplifier included in  
each module. If you are using a pas-  
sive subwoofer, you will need to supply  
a subwoofer amplifier. All seven chan-  
nels on the AVA7 are to be used for  
driving the left, center, right, both side,  
and both rear speakers.  
#2  
Use the simplified connection diagram  
AVA7  
on page 8 to help you understand how  
to connect the AVA7 amplifier to a JBL  
Performance Series system. This dia-  
gram is intended to show the signal  
flow through the system. For more  
detail in making these connections,  
please refer to the owner’s manual for  
the AV1 Surround Processor.  
Connect DIN and audio/video cables  
between system components, as shown  
on the following pages. Make sure that  
on all power amplifiers the main and  
standby power switches are in the On  
position. Operated in this mode, all of  
the components will turn on with one  
touch of the power button on the sur-  
round processor’s remote control.  
When connecting the source compo-  
nent (such as a DVD player) to the AV1  
processor, choose either a coaxial or  
an optical digital audio connection, but  
not both. As a backup, or if analog  
recordings might be desired in the  
future, you may also make the left and  
right analog audio connections.  
In addition to the audio connections,  
select one of the following video con-  
nections, but not more than one: com-  
posite video, S-video or component  
video. Remember to make the corre-  
sponding video monitor output connec-  
tion from the AV1 to your video display  
device.  
7
 
WIRING DIAGRAM  
AV1  
AVA7  
PS1400  
For Future Expansion  
Trigger Input  
(or other powered subwoofer)  
Subwoofer Input  
8
 
INSTALLING THE AVA7  
Installation of the AVA7 is a straight-  
forward process.  
4. Starting with the bottom two screw  
holes and using two of the rack  
bottom mounting screws are  
installed, move to the top mounting  
screws. Once done, check and  
tighten all four screws. Always use  
all four screws when mounting any  
equipment.  
screws and plastic washers (if sup-  
plied with your rack), secure the  
AVA7 into the rack. It may be neces-  
sary to have a helper hold up the  
rear of the unit until you have started  
the threads of the screws. Once the  
IMPORTANT:  
The amplifier must be installed  
following the directions described  
below. To ensure adequate perform-  
ance and safety, never install the  
amplifier with less free space around  
the amplifier than what is specified.  
Always put amplifiers on the bottom  
of a stack.  
Heavy equipment should not be sup-  
ported solely by the front-mounting  
locations. It is recommended that addi-  
tional rear support be used.  
1. The JBL Performance Series AVA7  
power amplifier has been designed  
to be mounted in EIA standard racks,  
or stacked freestanding as long as  
there is 4 inches (10cm) of free  
space around the amplifier (sides  
and rear). If the AVA7 is being  
Side view of amplifier without rack ear.  
mounted in a rack, it is suggested  
that its feet be removed prior to  
installation. If the AVA7 will be  
stacked with other components, use  
the feet that came attached to the  
unit. This will ensure that there is suf-  
ficient air space underneath so that  
heat can be dissipated effectively.  
Two rack ears are included with the  
AVA7. To install these rack ears,  
remove the four machine screws on  
each of the two side panels (see  
drawing), hold each rack ear in  
place, and attach it to the AVA7  
using the same four screws. Make  
sure that these screws are securely  
tightened.  
Side view of amplifier with rack ear attached.  
2. Make sure that the amplifiers are  
located in a well-ventilated, cool  
area. Be certain that the side and  
rear panels are not obstructed, as  
the cooling fan brings air in from the  
rear and expels it at the sides. It is  
very important not to obstruct the  
airflow from the rear panel; heat  
buildup and premature failure may  
occur. If the amplifier is installed  
inside a cabinet that is enclosed on  
all sides, the front of the cabinet  
must remain open to allow sufficient  
flow-through ventilation to avoid  
overheating.  
E
C
N
A
M
R
O
F
R
E
P
3. Using a helper to guide the unit into  
the rack, gently slide the AVA7 into  
place. Align the rack mounting holes  
to the rack ears of the equipment  
rack.  
Front view of amplifier with rack ear attached.  
9
 
TROUBLESHOOTING  
Problem: Amplifier does not turn on.  
Neither the red nor blue indicator lights  
are on.  
Problem: Insufficient sound output level  
from the speakers.  
Check that the output levels of the sur-  
round processor or equalizer are set  
properly.  
Make sure that the amplifier is plugged  
in, and verify that there is the proper  
voltage at the wall outlet. Make sure  
the Main Switch § on the rear panel  
is in the On position.  
Problem: Insufficient bass.  
Verify that the speakers have been  
wired to the amplifier with the correct  
polarity.  
Problem: The Standby Indicator ™  
lights red, but it does not change to  
blue when the Power Switch ¡ is  
depressed.  
Problem: Audible hum from the speakers.  
1. Check the power outlets and make  
sure that there is a solid earth  
If the amplifier is being used in a JBL  
Performance Series system, make sure  
that the surround processor is turned  
on, the Main Switch § is in the On  
position, and there is a connection  
between the AVA7’s Trigger Input ¶  
and another device providing a power-  
on voltage trigger. Refer to the “CON-  
NECTING YOUR SYSTEM” section for  
reference. If the amplifier is not being  
used with a JBL Performance Series  
AV1 or any other source providing a  
power-on trigger voltage signal, make  
sure that no connection is made to the  
Trigger Input of the AVA7.  
ground present. (The services of an  
electrician may be required.)  
2. Make sure that all signal cables are  
routed away from power cords.  
3. If these suggestions fail, experiment  
by running ground wires between  
the rear-panel screws of the ampli-  
fiers and the other system compo-  
nents, such as the surround proces-  
sor or signal processing package.  
If you still encounter difficulty after  
trying the above suggestions, call  
your JBL Authorized Dealer or JBL at  
1.516.255.4JBL for further assistance.  
Problem: There is no sound from  
the speakers, but the amplifier is on  
(Standby Indicator is lit in blue).  
1. Make sure that the surround proces-  
sor or equalizer is on, and that the  
correct source has been connected  
and selected.  
2. Make sure that the correct outputs  
are connected from the surround  
processor or equalizer to the  
amplifier.  
3. Make sure that the speakers are  
connected to the correct terminals.  
Check for short circuits at both ends  
of the speaker cables.  
Problem: Not all of the amplifiers turn on  
in the system.  
1. Make sure that all required cables  
are connected between system  
components. Refer to the “CON-  
NECTING YOUR SYSTEM” section.  
2. Make sure that each amplifier  
has its Main Switch § in the  
On position.  
3. Make sure the Power Switch ¡ on  
each amplifier is in the On position  
(so that its Standby Indicator is lit  
in blue when the cable is removed  
from its Trigger Input Jack ).  
10  
 
AVA7 SPECIFICATIONS  
Rated Power Output  
THD  
125W per channel into 8 ohms, all channels driven  
<0.01%, 20Hz –20kHz  
Input Impedance  
20k ohms  
Sensitivity  
1V in = 100 watts out  
Frequency Response (at 1W)  
S/N Ratio (A-weighted at rated power )  
Damping Factor (8 ohms)  
Power Bandwidth 1% THD  
Intermodulation Distortion  
Dimensions (H x W x D)  
Net Weight  
20Hz – 20kHz, +0, –0.25dB  
100dB  
380  
10Hz – 100kHz, +0, –3dB  
0.03%  
5-1/2" x 17-5/16" x 16-1/4" (140mm x 440mm x 413mm)  
55.5 Ib (25.19kg)  
Packaged Weight  
65.5 Ib (29.73kg)  
All features and specifications are subject to change without notice.  
11  
 
®
JBL Consumer Products  
250 Crossways Park Drive  
Woodbury, New York 11797 USA  
2005 Harman International Industries,  
©
Incorporated. All rights reserved.  
Part No. 34-JBL-0015 6/05  
A Harman International Company  
 

Indesit Washer IWC 61451 S User Manual
Ingersoll Rand Heat Pump PD15E FES PXX User Manual
Intel Computer Hardware S3200SH User Manual
IOGear Switch GUIP204 User Manual
ION Turntable POWERPLAY LP User Manual
JVC DVD Recorder DR M70SEK User Manual
Kenmore Gas Grill 90113 User Manual
Kenwood Stereo System M 303 User Manual
King Canada Air Cleaner KDCF 3500 User Manual
Konica Minolta Fax Machine FX 3 User Manual