Schertler STAT PRE User manual

Schertler SA
Via Beroldingen 18
6850 Mendrisio
Switzerland
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QUICK GUIDE V1
STAT PRE
QUICK GUIDE
THANK YOU
FOR
CHOOSING
SCHERTLER
QUICK START
AT FIRST USE
The 9V battery is already installed on new preamps.
For battery check, plug an instrument cable into the
OUTPUT socket and see that the blue LED lights up.
Repeat this anytime you want to check the battery
status.
To replace an empty battery, remove the 4 screws on
the rear panel’s corners to get access to the battery
compartment.
CONNECTIONS
Connect the instrument cable to the INPUT socket
and the output cable to the OUTPUT socket.
Unplug the OUTPUT to turn off the preamp and save
battery when the preamp is not in use.
LEVEL SET UP
Set the GAIN as needed. Don’t be afraid to even
take it all the way up, if necessary.
EXTERNAL EFFECTS
The use of external effects is only possible in series
and after the STAT PRE.
WARNING: Do not use the STAT PRE with M AG6
guitar pickup, as the 10V provided by the preamp
might damage the pickup.
RELATED PRODUCTS
TEDDY
Stage monitor ARTHUR Mixer
ACOUSTIC
Amps
CA JM JM
¼”jack cable STAT pickups
CONNECTIONS
UNBALANCED output
to line channels
(Plug for battery check) UNBALANCED input from pickup

Thepreamplier requires a 9V battery, which should deliver nearly 500 hours of playing time.
Equipped with a single INPUT and OUTPUT, plus a GAIN control for adjusting the level of input signal,
the preamp is activated when jack cables are inserted into both the INPUT and OUTPUT sockets. (If only
the INPUT is connected, there is no use of battery power.) However, to preserve battery life it is generally
recommended that all cables are disconnected when the preamp is not in use.
To check the battery level, insert a mono jack into the OUTPUT. The blue CHECK light indicates a charged
battery. Thesystem will be ready to work once a jack is also inserted into the INPUT.
To change the battery, carefully remove the four screwsfrom the housing cover, replace the battery, then
replace the screws.
WARNING: Although all ground connections are correctly implemented on the STAT system (pickup,
cables, STAT PRE box and circuit), they are not directly connected to ground (and are therefore “oating”),
as they actually depend on the grounding connection of the device to which the STATsystem is connected.
If that device is not properly grounded, or generates a ground loop, it is possible to experience hum.
Solving the problem requires attention to the device’s ground connection, usually via the GROUND
LIFTswitch.
In short: the ground connection must be provided by the device to which the STAT system is connected.
TECHNICAL INFORMATIONPRACTICAL TIPS
Weight
Dimensions (LxDxH)
Frequency response (@ ± dB)
Construction
Mic In connector
Mic In sensitivity
Mic In impedance
Instrument In connector
Instrument In sensitivity
Instrument In impedance
Return connector
Return sensitivity
Return impedance
Master Out connector
Master Out level
Master Out impedance
Warm
Low Cut
Phantom power (nominal)
Stat power (10 VDC)
Preamp
Audio transformer
Supply
0.16 kg
10. x 5.5 x 2.5 cm
40 Hz to 20 kHz
Aluminum box
n.a.
n.a.
n.a.
1/4” jack unbalanced
0 dBu
25 kΩ
n.a.
n.a.
n.a.
1/4” jack unbalanced
8 dBu
190 Ω
1st order Low pass (cut freq. 2 kHz) always on
2nd order High pass lter (cut freq. 100 Hz) always on
No
Yes
Class-A, no negative feedback
No
9 V alkaline battery