PO BOX 4394
SANTA ROSA, CA
95402 USA
0230-0160A
P (707) 525-9941
F (707) 575-7046
EMGPICKUPS.COM
SPC / RPC
INSTALLATION INFORMATION
EMG MODELS: SPC / RPC
(ACTIVE/PASSIVE PICKUP INPUTS)
SPECIFICATIONS
Input Impedance (Ohms) 250K
Input Referred Noise -130dbV
Output Impedance (Ohms) 2K
Current @ 9V (Microamps) 980
Battery Life (Hours) 250
Maximum Supply (Volts DC) 18
GENERAL OPERATION:
The SPC and RPC are active EQ circuits for guitar. The SPC is a mid-range boost. The RPC is a low cut/high boost.
The graphs below illustrate the effects of the controls. The thick black line displays the effect with the control all the way up (clockwise).
The flat black line illustrates the effect with the control all the way down (counter-clockwise) in the bypass mode. The controls are continuously
variable from flat to maximum effect. The SPC and RPC are wired in series with the signal path, so there is an input and output.
Both controls feature buffered inputs and can be used with passive pickups.
INCLUDED:
1 SPC or RPC Control
1 Battery Clip with Buss Connector
1 Stereo Output Jack (Battery Switching)
2 Interconnect cables
Frequency Response:
Dimensions:
EMG-SPC
10 dB/div
.400
.309 (8mm P .75)
1.325
0.025 LOG FREQ (kHz) 10
1 2 3 4 5
EMG-RPC
10 dB/div
.975
INPUT
GROUND
GROUND
OUTPUT
V++
1
2
3
.650
4
5
Connector for EMG Active Tone controls
and accessories.
Pin 1 Input
Pin 2 Ground for Input
Pin 3 Ground for Output
0.025 LOG FREQ (kHz) 10
Pin 4 Output
Pin 5 V+ Supply
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.
Installation Instructions:
EMG Models: SPC and RPC
Like all EMG Accessory products, the SPC and RPC use a 5-pin connector.
Diagram #1 to the right shows how the plug-in connectors are installed.
Be sure to reverse the input connector as shown.
Since there are a variety of installations in which the SPC or RPC can be installed it
is impossible to show every installation in this data sheet. Some of the simpler
installations have been chosen. More diagrams are available at our website
http://www.emgpickups.com.
Diagrams #2 and #3 illustrate installations that have a single pickup and
do not use a selection switch.
Page 3 has diagrams that have 2 pickups and a selection switch.
Page 4 has diagrams that have 3 pickups and use the B161v4 five position
selection switch/buss. If you have the B161v4, refer to that data sheet where
more options regarding the 3-pickup instruments are available.
Keep in mind that all of the EMG Accessory controls can be substituted for one
another since they all have buffered inputs and utilize the same 5-pin connnector.
So, if you decide you would rather use the EXG instead of the SPC, simply unplug
the SPC and replace it with the EXG.
Diagram #2
One Pickup
One Volume
One SPC or RPC
RED
RED
All of the EMG Active controls use the same 5-pin connector
shown below.
Note: Reversed connector! Pins 1 and 2 are reversed.
Make sure the connectors are plugged on as shown.
Diagram #1
BATTERY
BUSS
- 9V +
FROM PICKUP
Diagram #3
One Pickup
One Volume
One Master Tone (Passive)
One SPC or RPC
- 9V +
MASTER
FROM PICKUP
VOLUME
Powering up the pickups:
If your existing active pickup cables don’t have the connector for the
power buss, simply use some needle nose pliers and pull out the
V+ header and solder the RED Wires of the EMG Pickups to any
of the pins on the header. Also, don’t forget to solder the RED Wire
of the battery clip to one of the header pins of the buss as well.
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.
MASTER
VOLUME
NOTE:
REVERSED CONNECTOR
SPC or RPC
ACTIVE TONE
MASTER TONE
(PASSIVE)
NOTE:
REVERSED CONNECTOR
RED
OUTPUT CABLE
RED
RED
SPC or RPC
ACTIVE TONE
BATTERY
NEG (-)
RED
OUTPUT
R
S
T
BATTERY
BUSS
BATTERY
NEG (-)
OUTPUT CABLE
OUTPUT
R
S
T
Solder RED wires from both
EMG Pickups and the
RED wire of the Battery Clip
and re-insert the Header
into the insulation cover
SPC / RPC Page 2
1
2
3
2 Pickup Guitars using a selection switch:
Diagrams #4 and #5 show the pickups connected to the B157 Pickup Buss.
To learn more about the B157 Pickup Buss, be sure to go to the EMG Website:
http://www.emgpickups.com. More diagrams are available at the EMG website.
The SPC or any EMG Active Tone Control is shown following the pickup buss
and then to the output jack. A master volume could easily follow the SPC
before the output jack.
Diagram #4
2 Pickups
Toggle Style Switch
Volume each Pickup (Volumes are independent)
SPC or RPC Control
- 9V +
BATTERY
NEG (-)
GROUND
NECK P/U
OUTPUT
BRIDGE P/U
FROM NECK PICKUP
FROM BRIDGE PICKUP
Diagram #5
2 Pickups
Toggle Style Switch
Volume each Pickup (Volumes are independent)
Master Tone (Passive)
SPC or RPC Control
GROUND
NECK P/U
- 9V +
RED
RED
RED
NOTE:
REVERSED CONNECTOR
SPC or RPC
ACTIVE TONE
OUTPUT CABLE
NK VOLUME
BR VOLUME
NOTE:
REVERSED CONNECTOR
SPC or RPC
ACTIVE TONE
S
BATTERY
NEG (-)
OUTPUT
R
T
OUTPUT
R
S
SPC / RPC Page 3
OUTPUT
BRIDGE P/U
FROM NECK PICKUP
FROM BRIDGE PICKUP
RED
RED
RED
MASTER TONE
(PASSIVE)
NK VOLUME
BR VOLUME
T
OUTPUT CABLE
3 Pickup Guitars using a selection switch:
Diagrams #6, #7 show a typical installation with a Volume/Tone/SPC in a
“daisy-chain” series wiring. The only difference between the the diagrams
is the order in which the controls are wired. The diagrams yield the same
results. The diagrams have been edited to show the SPC input, output,
and power (9V+). The pickup inputs, battery, and “ring”contact to the jack
have been omitted for clarity.
All diagrams show the B161 5-Position switch buss. To learn more
about the B161 5-Position switch Buss, go to the EMG Website:
http://www.emgpickups.com.
Refer to Diagram #6
Start by installing the SPC or RPC as shown in Diagram #6.
1) Plug a coax cable from the output switch to the Volume control.
2) Plug a coax cable from the Volume control to the Tone control.
3) Plug a coax cable from the Tone control to the input of the SPC.
Be sure to reverse the connector on the input of the SPC as shown.
4) Plug the output cable from the SPC to the output jack.
5) Plug the Red wire from the SPC to one of the supply pins on the
B161 Switch Buss.
Be sure the 3 shunts are installed on the bypass header of the
B161 switch or you won’t get any output from the guitar.
Refer to Diagram #7
Start by installing the SPC or RPC as shown in Diagram #7.
1) Plug a coax cable from the output switch to the Tone control.
2) Plug a coax cable from the Tone control to the input of the SPC.
Be sure to reverse the connector on the input of the SPC as shown.
3) Plug a coax cable from the output of the SPC to the Volume control.
4) Plug the output cable from the Volume control to the output jack.
5) Plug the Red wire from the SPC to one of the supply pins on the
B161 Switch Buss.
Be sure the 3 shunts are installed on the bypass header of the
B161 switch or you won’t get any output from the guitar.
Diagram #6
Volume Control
Tone (Passive)
SPC Control
OUTPUT TO JACK
NOTE:
REVERSED CONNECTOR
Diagram #7
Tone (Passive)
SPC Control
Volume Control
OUTPUT TO JACK
SPC CONTROL
TONE CONTROL
(PASSIVE)
VOLUME CONTROL
Refer to Diagram #8
Diagram #8 shows 2 active controls installed: SPC and VLPF. This is
the same as the X Series Pickups that use an active tone (VLPF)
and adding the SPC Control.
Start by installing the SPC or RPC as shown in Diagram #8.
1) Plug a coax cable from the output switch to the Volume control.
2) Plug a coax cable from the Volume control to the input of the VLPF.
Be sure to reverse the connector on the input of the VLPF as shown.
3) Plug a coax cable from the output of the VLPF to the input of the SPC.
Be sure to reverse the connector on the input of the SPC as shown.
4) Plug the output cable from the SPC to the output jack.
5) Plug the Red wires from both the VLPF and SPC to the extra 9V+
supply pins on the B161 Switch Buss.
Be sure the 3 shunts are installed on the bypass header of the
B161 switch or you won’t get any output from the guitar.
SPC / RPC Page 4
NOTE:
REVERSED CONNECTOR
Diagram #8
Volume Control
Tone (Active VLPF)
SPC Control
OUTPUT TO JACK
NOTE:
REVERSED CONNECTORS
SPC CONTROL
SPC CONTROL
TONE CONTROL
(PASSIVE)
TONE CONTROL
(ACTIVE VLPF)
VOLUME CONTROL
VOLUME CONTROL
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