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16
SURGES
SURGES Controls
10. IN 2 – use this 3.5 mm TS jack socket to input
a second, clean, signal into the SURGES. The
LED above will light if a signal is present.
Both inputs can be used simultaneously.
11. V/OCT – use this 3.5 mm TS jack socket to
track the cutoff frequency at 1 volt/octave.
Range is -3 V to +7 V.
12. LOW PASS LEVEL – use this 3.5 mm TS jack
to socket control the level of the low pass
output from an external CV source. Range is
0 V (no output) through +5 V (unity) up to
+7 V (compressed). If no external voltage is
used then +7 V is applied internally.
13. HIGH PASS OUT – use this 3.5 mm TS jack
socket to access the high pass filter output.
14. BAND PASS OUT – use this 3.5 mm TS jack
socket to access the band pass filter output.
15. LOW PASS OUT – use this 3.5 mm TS jack
socket to access the low pass filter output.
All outputs can be used simultaneously.
CALIBRATION
1. Disconnect all external CV controls, except
a suitable calibrated 1 volt/octave keyboard
connected to the v/oct input (11).
2. Set the Freq control (1) to around its midway
point, and the Reso control (3) to maximum.
3. Either by ear, or using a tuner, adjust the
trimmer (9) until playing notes one octave
apart produces a correctly tuned octave output
on the low pass output (15).
Power Connection
P1
Red Stripe
2
1
10
9
200 mm ± 10
Connect end P1 to the module socket
Connect end P2 to the power supply
The module comes with the required power cable
for connecting to a standard Eurorack power
supply system. Follow these steps to connect
power to the module. It is easier to make these
connections before the module has been mounted
into a rack case.
1. Turn the power supply or rack case power off
and disconnect the power cable.
2. Insert the 16-pin connector on the power cable
into the socket on the power supply or rack
case. The connector has a tab that will align
with the gap in the socket, so it cannot be
inserted incorrectly. If the power supply does
not have a keyed socket, be sure to orient pin 1
(-12 V) with the red stripe on the cable.
17
Quick Start Guide
P2
1
2
HOT USED
15
16
+ 12V
+ 12V
GROUND
GROUND
- 12V
- 12V
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