Getting Started
Thomann GmbH • Hans-Thomann-Straße 1 • 96138 Burgebrach • www.thomann.de • info@thomann.de  DocID: 326025_21.07.2020
SG-1 Signal generator
User manual
This manual contains important information on the safe operation of the device. 
Read and follow the safety advice and instructions given. Retain the manual for 
future reference. If you pass on the device please include this manual.
Operating
1. If you want to test a passive speaker, connect it to the XLR  or Speakon 
output .
2. When using the XLR output, the [Output] button  must be pressed in order to 
output an unbalanced signal with speaker level on pin 1 & 2 of the XLR jack.
3. If you want to test an active speaker, ampli er or similar, connect it to the 
XLR output.
4. The [Output] button must not be pressed then, so the XLR jack outputs a 
balanced line level signal.
5. Switch on the device with the [Power] button  and turn the [Volume] knob 
until you hear a clear tone. The [Volume] knob controls both the XLR and 
Speakon output.
6. To test the individual speakers in a multi-way system, you can set the [Frequency]
knob  to an appropriate frequency.
7. After  nishing testing, switch o  the device with the [Power] button.
EN
Safety instructions
Intended use
This device is intended to be used for function tests of loudspeakers. Any other use 
or use under other operating conditions is considered to be improper and may re-
sult in personal injury or property damage. No liability will be assumed for damages 
resulting from improper use.
Danger for children
Ensure that plastic bags, packaging, etc. are properly disposed of and are 
not in the reach of babies and young children. Choking hazard! Ensure 
that children do not detach any small parts (e.g. knobs or the like) from 
the product. They could swallow the pieces and choke! Never let children 
use electrical devices unattended.
Where to use the product
Never use the product 
• in conditions of extreme temperature or humidity
• in extremely dusty or dirty areas
• at locations where the unit can become wet
General handling
• To prevent damage, never use force when handling the product.
• Never immerse the product in water. Just wipe it with a clean dry cloth. Do not 
use liquid cleaners such as benzene, thinners or  ammable cleaning agents.
• Disconnect the device from the mains power supply when it is not in use.
Features
• Ideal for testing active and passive speakers
• Sine signal with 1 W output power @ 8 Ω, min. impedance 4 Ω
• Line out for testing active speakers or ampli ers etc.
• Sweepable frequency 20 Hz to 20 kHz
• Max. output level at XLR socket 2V
• Power supply via 9 V battery
• XLR output switchable for line or speaker level
• Speakon output for passive speaker test
• Dimensions: 110 mm × 72 mm × 40 mm
Pin assignment XLR jack:
• [Output] switch pressed:  • [Output] switch not pressed:
PIN 1 = signal (–)    PIN 1 = ground
PIN 2 = signal (+)    PIN 2 = signal (+)
PIN 3 = not connected    PIN 3 = signal (–)
Pin assignment Speakon socket:
The signal is output to all 4 poles of the socket
PIN 1+ and 2+ = signal (+)
PIN 1– and 2– = signal (–)
For the transport and protective packaging, environmentally friendly materials 
have been chosen that can be supplied to normal recycling. Ensure that plastic 
bags, packaging, etc. are properly disposed of. Do not just dispose of these 
materials with your normal household waste, but make sure that they are col-
lected for recycling. Please follow the notes and markings on the packaging.
Batteries must not be disposed of as domestic waste or thrown into  re. Dispose 
of batteries according to national or local regulations regarding hazardous 
waste. Dispose of empty batteries at appropriate collection sites.
This product is subject to the European Waste Electrical and Electronic Equipment 
Directive (WEEE) in its currently valid version. Do not dispose of your old device 
with your normal household waste. Dispose of this product through an approved 
waste disposal  rm or through your local waste facility. Comply with the rules and 
regulations that apply in your country. If in doubt, consult your local waste dispos-
al facility. 

