INSTALLATION INFORMATION
EMG MODELS: J, JA, J-CS SET (4 /5-STRING)
Warranty
All EMG Pickups and accessories are warranted for a period of two years. This warranty does not cover failure due to improper installation, abuse or damage. If
upon examination the pickup is determined to be defective, a replacement will be made. Warranty replacement products are covered by this same warranty. This
warranty covers only those pickups and accessories sold by authorized EMG Dealers. This warranty is not transferable.
© 2009 Copyright EMG INC. All Rights Reserved.
PO BOX 4394
SANTA ROSA, CA
95402 USA
P (707) 525-9941
F (707) 575-7046
EMGPICKUPS.COM
0230-0116B
*Note: Magnet Type: A (Alnico) C (Ceramic) C/S (Ceramic and Steel)
IMPORTANT INSTALLATION NOTES:
1) Only one 9-Volt battery is required to power the pickups and any
accessories such as the EXB, BTC, B125 Blend, and BQ Controls.
Use an Alkaline or Lithium battery for longest life.
2) The Volume and Tone controls included with this EMG System are
25K Ohm. This value is required for the system to work correctly.
3) A stereo output jack (12B) is included with the EMG Pickups;
it grounds the black battery wire to turn on the pickups when
the plug is inserted into the jack. If you are replacing passive
pickups, make sure to use the jack included. If your guitar has a
long panel jack (see Diagram #4, Page 3), make sure it is a
stereo type, a Switchcraft 152B is recommended.
4) When installing EMG Active Pickups, DO NOT connect the bridge
ground wire. This wire is usually soldered to a volume or tone
control casing and goes to the bridge. This wire grounds the
strings and uses them and your body as a shield against hum and
buzz. It also creates a shock hazard.
EMG Pickups are shielded internally and DO NOT require string
grounding. This greatly reduces the possibility of reverse
polarity shock from microphones and other equipment.
5) EMG Active Pickups have very little magnetism compared to
passive pickups. We recommend you adjust the pickups as
close to the strings as possible. Sustain and string movement
will not be inhibited by close adjustment.
6) If your installation is different from the diagrams in these
instructions or you need additional diagrams visit our website:
emgpickups.com for a complete listing of available diagrams.
7) SPECIAL NOTE:
The diagrams shown are for EMG Active Pickups.
All diagrams show the Red Wire coming from the pickups
connected to the battery. If you are installing EMG-HZ
Passive Pickups refer to their diagrams. The Red Wire of
the HZ Pickup is NOT for battery power, it is a coil wire.
SPECIFICATIONS: MODEL:
J JA J-CS
Logo Color Silver Gold Silver
Magnet Type * C A C/S
Resonant Frequency (KHz) 3.95 3.20 3.20
Output Voltage (String) 2.00 1.00 1.00
Output Voltage (Thump) 4.50 4.50 4.50
Output Noise (60 Hz) -101 -99 -99
Output Impedance (Kohm) 10 10 10
Current @9V (Microamps) 80 80 80
Battery Life (Hours) 3000 3000 3000
Maximum Supply (Volts DC) 27 27 27
PICKUP AND MAGNET DIMENSIONS:
The shorter housing (SJ) is for the neck pickup, while the longer housing (LJ) is for the bridge pickup. Each of the housings also have
different mounting hole distances. Both SJ and LJ Housings can work with both 4 and 5-string instruments, but you should check the width
of your strings against the magnet dimensions above to make sure there is sufficient string coverage. A rule of thumb for any pickup is that
the total magnet width should be the string width plus twice the distance the pickup is from the strings. So, If the pickup is 3/16” (5mm) from
the strings, with a magnet width of 3.10“ (78mm) the maximum string width would be 2.72” (69mm). If your string width is too wide for a J Pickup,
choose one of the EMG Extended Series Pickups, with a 4 inch (100mm) housing, where we have several styles of pickup available.
3.590
1.500
.920
R .250 TYP
R .093 TYP
.730
#4 WOOD SCREW
FOR MOUNTING
.750
LONG J HOUSING
(LJ)
SHORT J HOUSING
(SJ)
3.100
3.100
.920
3.700
R .250 TYP
R .093 TYP
.730
1.560
#4 WOOD SCREW
FOR MOUNTING
MAXIMUM RECOMMENDED STRING WIDTH 2.725"
MAXIMUM RECOMMENDED STRING WIDTH 2.725"
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