JBL GHE 1000V (serv.man2) User Manual / Operation Manual ▷ View online
BI-WIRING CONNECTIONS
Fig. 6 & Fig. 7 show in closer detail the
hooking up of your speakers to the
amplifier(s). Two bi-amplification options
are shown in detail: one stereo-amp (from
Fig. 4) and two stereo-amp (from Fig. 5).
hooking up of your speakers to the
amplifier(s). Two bi-amplification options
are shown in detail: one stereo-amp (from
Fig. 4) and two stereo-amp (from Fig. 5).
IMPORTANT:
1. The external "strapping bars" which
normally connect the GHE's HF and LF
terminals MUST BE REMOVED BEFORE
BI-WIRING CONNECTIONS ARE MADE
(See Fig 8).
2. NEVER CONNECT TWO AMPLIFIER
CHANNELS TO THE SAME LOUD-
SPEAKER WITHOUT FIRST REMOVING
THE STRAPPING BARS. Operating two
amplifier channels with the GHE strapping
bars in place can seriously damage the
amplifiers!
3. If your preamplifier has just one set of
stereo outputs, you will need to use "Y"
cords in the two, three, and four-amp bi-
wire hook-ups. "Y" cords are available
from many sources including your JBL
dealer.
4. If you have hooked up your GHEs in
any of the bi-wire configurations indicated,
it is not advisable to use additional speak-
ers, either separately or simultaneously.
5. As with conventional one-amplifier,
non-bi-wire conections shown in the
"CONNECTIONS" section of this manual,
make sure that all speaker cables are the
same length and that you maintain the
"red-to-red" and "black-to-black" connec-
tions between the amps and the speakers.
1. The external "strapping bars" which
normally connect the GHE's HF and LF
terminals MUST BE REMOVED BEFORE
BI-WIRING CONNECTIONS ARE MADE
(See Fig 8).
2. NEVER CONNECT TWO AMPLIFIER
CHANNELS TO THE SAME LOUD-
SPEAKER WITHOUT FIRST REMOVING
THE STRAPPING BARS. Operating two
amplifier channels with the GHE strapping
bars in place can seriously damage the
amplifiers!
3. If your preamplifier has just one set of
stereo outputs, you will need to use "Y"
cords in the two, three, and four-amp bi-
wire hook-ups. "Y" cords are available
from many sources including your JBL
dealer.
4. If you have hooked up your GHEs in
any of the bi-wire configurations indicated,
it is not advisable to use additional speak-
ers, either separately or simultaneously.
5. As with conventional one-amplifier,
non-bi-wire conections shown in the
"CONNECTIONS" section of this manual,
make sure that all speaker cables are the
same length and that you maintain the
"red-to-red" and "black-to-black" connec-
tions between the amps and the speakers.
- +
HF
LF
Fig. 8 - Removal of Strapping Bars
- +
HF
LF
LEFT
RIGHT
STEREO AMP
- +
HF
LF
- +
HF
LF
LEFT
RIGHT
RIGHT SPEAKER
LEFT SPEAKER
STEREO AMP
GHE SERIES
5
Fig. 6 – One Stereo-Amp Bi-Wire
(Detail of Fig. 4 Hook-up)
(Detail of Fig. 4 Hook-up)
Fig. 7 – Two Stereo-Amp Bi-Wire
Hook-up is identical for both
speakers (Detail of Fig. 5 Hook-up)
Hook-up is identical for both
speakers (Detail of Fig. 5 Hook-up)
Fig. 8 – Removal of Strapping Bar
GHE Series Owners Manual 7/28/98 11:32 AM Page 5
POWER HANDLING
Thanks to their high efficiency, JBL GHE
loudspeakers will produce reasonable vol-
ume levels in a room of moderate size
with very little amplifier power. However,
using a small amplifier to obtain the
desired volume listening levels may lead
to overdriving the amplifier. This will gen-
erate high distortion levels and may cause
damage to your loudspeaker. For the best
performance, an amplifier should be
selected with an output rating that is
greater than the maximum power that will
be used. This margin of reserve power will
ensure that the amplifier will not attempt to
deliver more power than its design allows.
However, the power amplifier's power rat-
ing per channel must not exceed the max-
imum recommended amplifier power for
that specific loudspeaker model. Please
see the specifications section for details.
Following these guidelines will provide dis-
tortion free-sound reproduction and long
loudspeaker life.
loudspeakers will produce reasonable vol-
ume levels in a room of moderate size
with very little amplifier power. However,
using a small amplifier to obtain the
desired volume listening levels may lead
to overdriving the amplifier. This will gen-
erate high distortion levels and may cause
damage to your loudspeaker. For the best
performance, an amplifier should be
selected with an output rating that is
greater than the maximum power that will
be used. This margin of reserve power will
ensure that the amplifier will not attempt to
deliver more power than its design allows.
However, the power amplifier's power rat-
ing per channel must not exceed the max-
imum recommended amplifier power for
that specific loudspeaker model. Please
see the specifications section for details.
Following these guidelines will provide dis-
tortion free-sound reproduction and long
loudspeaker life.
TROUBLESHOOTING
The vast majority of new speaker "mal-
functions" end up being traced to connec-
tions or switch settings. To avoid packing
up correctly functioning speakers and
sending them off, only to find that they're
not really at fault, check the following tips
first, before requesting service.
functions" end up being traced to connec-
tions or switch settings. To avoid packing
up correctly functioning speakers and
sending them off, only to find that they're
not really at fault, check the following tips
first, before requesting service.
No sound at all or very faint sound from
both speakers
both speakers
1. Amp/receiver tape monitor button
pushed in while using CD, FM or phono
inputs.
2. Wrong speaker switch, "A" or "B"
speaker output.
3. Sound source (CD, cassette deck,
turntable) not turned on, not activated,
not hooked up or not selected on amp/
receiver front panel.
pushed in while using CD, FM or phono
inputs.
2. Wrong speaker switch, "A" or "B"
speaker output.
3. Sound source (CD, cassette deck,
turntable) not turned on, not activated,
not hooked up or not selected on amp/
receiver front panel.
No sound from one speaker
1. Balance control turned all the way left
or right.
2. Speaker wire has become disconnected.
3. One of the connections between sound
source and amp/receiver is faulty or has
become disconnected.
or right.
2. Speaker wire has become disconnected.
3. One of the connections between sound
source and amp/receiver is faulty or has
become disconnected.
Both speakers play at low volumes but
shut off as volume is increased OR sound
turns on and off intermittently
shut off as volume is increased OR sound
turns on and off intermittently
A few strands of speaker wire may be
shorting out. Recheck the connections.
Recheck the impedance of the amp.
shorting out. Recheck the connections.
Recheck the impedance of the amp.
Bass is very weak AND/OR sound seems
to come from each speaker separately,
without creating a stable stereo image
between the speakers.
to come from each speaker separately,
without creating a stable stereo image
between the speakers.
1. The polarity (+&–) of one speaker has
been reversed relative to the other.
Double-check connections.
2. Speakers are too far away from back
and side walls or too far apart. Experiment
again with the speaker placement. If you
are still encountering problems, consult
your JBL dealer.
been reversed relative to the other.
Double-check connections.
2. Speakers are too far away from back
and side walls or too far apart. Experiment
again with the speaker placement. If you
are still encountering problems, consult
your JBL dealer.
GENERAL CARE
The grille is held in place by pins near
the edges. To remove the grille, grasp it
by both top and bottom edges and pull
gently. To replace grille, reposition it care-
fully and press gently at the corners. Do
not push on the center area of the grille.
The loudspeaker cabinet may be cleaned
with a slightly damp cloth. To remove dust
from the grille cloth, use a vacuum with a
brush attachment. Spots may be removed
with a commercial spot remover. Do not
use any cleaners or solvents on the
speaker drivers themselves.
the edges. To remove the grille, grasp it
by both top and bottom edges and pull
gently. To replace grille, reposition it care-
fully and press gently at the corners. Do
not push on the center area of the grille.
The loudspeaker cabinet may be cleaned
with a slightly damp cloth. To remove dust
from the grille cloth, use a vacuum with a
brush attachment. Spots may be removed
with a commercial spot remover. Do not
use any cleaners or solvents on the
speaker drivers themselves.
SERVICE
Should your loudspeaker ever need
service, return it to the JBL dealer from
whom it was purchased. If for some
reason this is impractical, in the United
States, call 800-336-4JBL for your nearest
warranty station. Military personnel who
purchased from authorized military outlets
should return them to a similar outlet. If
purchased outside the United States,
contact your local distributor to make
arrangements for repair service. Do not
return products to the JBL factory.
service, return it to the JBL dealer from
whom it was purchased. If for some
reason this is impractical, in the United
States, call 800-336-4JBL for your nearest
warranty station. Military personnel who
purchased from authorized military outlets
should return them to a similar outlet. If
purchased outside the United States,
contact your local distributor to make
arrangements for repair service. Do not
return products to the JBL factory.
6
GHE Series Owners Manual 7/28/98 11:32 AM Page 6
GHE SERIES
7
Specifications
GHE1000V
GHE1200V
Application
3-Way Tower
3-Way Tower
High Frequency Dome Transducer
1" Ti Laminate
1" Ti Laminate
Mid Frequency (Polymer Laminate)
5"
5"
Low Frequency (Polymer Laminate)
10"
12"
Crossover Frequencies
930Hz/5.6kHz
930Hz/5.6kHz
Frequency Response (– 6dB)
36Hz to 23kHz
32Hz to 23kHz
Sensitivity(1 Watt/1 meter)
90dB
90dB
Nominal Impedance
8 Ohms
8 Ohms
Recommended Amplifier Power*
10 to 175 Watts
10 to 250 Watts
External Dimensions (HxWxD)
39 x 12 x 11"
44 x 14 x 11-3/4"
991 x 305 x 279mm
1118 x 356 x 298mm
Weight (each)
44 lbs (20 kg)
58 lbs (26.3 kg)
Shipping Weight
49 lbs (22.2 kg)
63 lbs (28.6 kg)
*The maximum recommended amplifier power rating will ensure proper system headroom to allow for
occasional program peaks. We do not recommend sustained operation at these maximum power levels.
JBL continually strives to improve its products. New materials, production methods and design refinements
are introduced into existing models without notice as a routine expression of our design philosophy. For this
reason, JBL loudspeakers may differ in some respect from their published specifications and descriptions, but
will always equal or exceed the original specifications unless otherwise stated.
are introduced into existing models without notice as a routine expression of our design philosophy. For this
reason, JBL loudspeakers may differ in some respect from their published specifications and descriptions, but
will always equal or exceed the original specifications unless otherwise stated.
GHE Series Owners Manual 7/28/98 11:32 AM Page 7
GHE SERIES
LOUDSPEAKERS
OWNER’S
MANUAL
GHE
G H E 1 0 0 0 V
G H E 1 2 0 0 V
G H E 1 2 0 0 V
S E R I E S
80 Crossways Park West, Woodbury, NY 11797
1-800-336-4JBL
A Harman International Company
Part No. 15-30-4140-00
Declaration of Conformity
Kongevejen 194B
DK-3460 Birkerød
DENMARK
DK-3460 Birkerød
DENMARK
declare in own responsibility,
that the product described
in this owner’s manual is in
compliance with the applicable
technical standards.
that the product described
in this owner’s manual is in
compliance with the applicable
technical standards.
Steen Michaelsen
Birkerod. DENMARK. 11/95
GHE Series Owners Manual 7/28/98 11:32 AM Page 8
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