Analogue Solutions LEIPZIG-S User manual

Leipzig-S/SK User Manual
Analogue Solutions | Welcome!
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Leipzig-S / SK
u s e r m a n u a l

Leipzig-S/SK User Manual
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Welcome! | Analogue Solutions
Welcome!............................................................................................................................... 4
MANUAL OVERVIEW ............................................................................................................. 6
Power................................................................................................................................... 6
MIDI ..................................................................................................................................... 6
Using This Unit Safely ............................................................................................................. 7
Placement ............................................................................................................................ 9
Maintenance ........................................................................................................................ 9
Additional Precautions ......................................................................................................... 9
FRONT PANEL .............................................................................................................. 10
REAR PANEL................................................................................................................ 10
Vco - Voltage control oscillators ......................................................................................... 11
VCO1 ............................................................................................................................. 12
VCO2 ............................................................................................................................. 13
MIXER................................................................................................................................... 15
VC LPF – VOLTAGE CONTROLLED LOW PASS FILTER............................................... 17
LFO – LOW FREQUENCY MODULATION ........................................................................ 18
MODULATION...................................................................................................................... 19
VCO1.............................................................................................................................. 19
VCO2 ............................................................................................................................. 20
VCF................................................................................................................................ 21
EG1 & EG2 - ENEVELOPE GENERATORS ...................................................................... 22
VCA – VOLTAGE CONTROLLED AMPLIFIER..................................................................... 24
MODE ............................................................................................................................ 24
MIDI....................................................................................................................................... 26
PROGRAM (rack version only) .......................................................................................... 26
Duophonic Mode .................................................................................................................. 27
To connect them up:....................................................................................................... 27
SEQUENCER ....................................................................................................................... 28
SYNC SOURCE ............................................................................................................ 28
Note about how Sync choice affects EG..................................................................... 29
How to Sync Leipzig-S/-SK to MIDI............................................................................. 30
RESET ........................................................................................................................... 30
STEP.............................................................................................................................. 30
DESTINATION .............................................................................................................. 32
Sequencer / EG Triggering.................................................................................................. 33
Sequencer Triggering Only .......................................................................................... 33
Normal MIDI use ........................................................................................................... 33
Other .............................................................................................................................. 33

Leipzig-S/SK User Manual
Analogue Solutions | Welcome!
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USING THE SEQUENCER AS AN AUDIO OSCILLATOR ............................................ 33
Specification .......................................................................................................................... 35
LEIPZIG-Sk Pitch Bend and Mod Wheel............................................................................... 37
LEIPZIG-SK Rear Panel Audio Connections......................................................................... 38
CV/Gate Jacks....................................................................................................................... 39

Leipzig-S/SK User Manual
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Welcome! | Analogue Solutions
WELCOME!
Leipzig-S is a 100% analogue synth using circuits that date back to the 1970s and
1980s – these give Leipzig a really old sound that is rich and full of character.
The circuits are not stabilized and sanatised by CPUs and the controls or not read by
CPUs and quantised.
Leipzig has a huge sound, especially when used for bass (something it excels at!), a
fact often commented to us by our customers with great excitement!
Though a master at big bass sounds, Leipzig is exceptionally good at making electronic
percussion. Not just the sounds, but also percussive loops by using the on board step
sequencer. Patterns can quickly be produced, then either easily sync’ed to your DAW,
or sampled in.
As well as bass and percussion, Leipzig will produce leads, effects, modular style and
other sounds equally well.
Leipzig is extremely powerful. Don’t be fool by the ‘simple’ looking front panel. The
synth has been designed to be easy to use, ideal for beginners, but still have the depth
and versatility to enable many years of service.
Many of the controls can route more than one signal to a destination. There are many
modulation choices on the rotary select switches. All signal choices have been carefully
chosen.
Leipzig was designed by a musician of electronic music, and used in many of the music
productsion. We like to think we know what makes a good synth and that is reflected in
the design of Leipzig.
The on board sequencer is not just for making simple melodies or percussive loops.
Think of it also as a modulation source. Each step can be used to drastically change the
sounds. This makes it also serve as a simple way of making ‘presets’. Just step to get
the next sound. The sequencer can control the pitch of either VCO, and also the filter
cut-off.
Sync’ing the sequencer to a MIDI sequencer or DAW couldn’t be easier. It will respond
to MIDI Sync, but it is far better and easier to sync to MIDI Note. That way you can clock
the sequencer at any tempo, divide the tempo down (relative to your DAW’s tempo),
stop it, start it, mute, etc, all from your DAW – something that you cannot do with MIDI
Sync.
So Leipzig is ideal for both beginners, and more advanced synthesists and musicians.
Use anywhere you want big analogue sounds that have a true vintage sounds. Ideal
also if you have the budget for just one analogue synth since this synth covers so many
bases (and basses!).

Leipzig-S/SK User Manual
Analogue Solutions | Welcome!
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MAIN FEATURES
•Pure analogue voice and modulation circuitry.
•Fat Moog style transistor ladder filter – 24db/Octave 4 pole.
•2 VCOs with Glide.
•Sub-VCOs for extra depth and power.
•Osc Sync & Cross-Mod
•Plenty of modulation routing possibilities.
•Analogue step sequencer – with plenty of clocking options.
•Use sequencer as a modulation source.
•Audio input so can be used as a sound processor.
•Rugged steel/aluminium construction.
•MIDI In for software sequencer control.

Leipzig-S/SK User Manual
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MANUAL OVERVIEW | Analogue Solutions
MANUAL OVERVIEW
Though Leipzig-S has some very special features, the general architecture, signal flow,
control naming etc is fairly standard, so using this synth should be fairly straightforward.
If you have experience with other analogue synths you should be able to get this going
without reading the manual! However, we advise you read the safety information and further
read the rest to discover how to use some of the unique features.
This manual does not aim to teach you the principles of analogue synthesis and assumes
you have prior knowledge of analogue synths and their use. What this manual does is list the
functions and their use.
A quick web search will bring up plenty of general analogue synth tutorials and forums are
always a good place to ask question about general synth use.
POWER
Leipzig-S comes with a power supply. It uses a power supply with an AC output (not DC!)
If your power supply comes with a selection of connector plugs, use the one with the yellow
coloured centre. You’ll know it’s the right one as the fit will feel right.
It does not matter which was around you insert the plug into the end of the power supply
lead.
Plug the power leads into the rear of Leipzig-S.
Leipzig-SK uses standard IEC power cable, supplied. Leipzig-SK will either be set to 230V or
115V. It will be set correctly to the country it was originally shipped to. If you have bought
yours from another country, or second hand, ensure voltage is correctly set for your country.
Voltage setting is marked on the back panel.
MIDI
LEIPZIG-S HAS
MIDI In to play the synth from a MIDI keyboard, sequencer or DAW.
MIDI Thru outputs a copy of what comes into the MIDI In socket.

Leipzig-S/SK User Manual
Analogue Solutions | Using This Unit Safely
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USING THIS UNIT SAFELY
Before using this unit read this instruction manual.
Do not open or modify this unit or its power supply.
Do not attempt to repair the unit or replace parts within it. Refer servicing to a qualified
service engineer.
Never use or store the unit in places that are;
•subject to extremes of temperature (such as in direct sunlight in an enclosed vehicle,
on a heater or near a heating duct, etc).
•that are damp or wet (e.g. bathrooms),
•humid,
•exposed to rain,
•dusty,
•high levels of vibration.
Make sure the unit is placed on a stable and level surface.
Use only the specified AC adaptor. Make sure the mains voltage matches that of the
adaptor. Ensure the correct polarity adaptor is used. Other adaptors could be of the wrong
type of voltage or polarity and could result in damage, malfunction, or electric shock.
Do not excessively bend or twist the adaptor cable. Doing so may damage the cable.
Damaged cables could cause a malfunction, or a shock or fire hazard.
Do not allow any small parts (like pins, coins), liquids, flammable material to enter the unit.
Immediately disconnect the mains supply and adaptor, and contact a qualified service
engineer;
•when the AC adaptor or power supply cord has been damaged,
•when objects have fallen onto, or a liquid has been spilled into the unit,
•when the unit has been exposed to rain or other liquids,
•when the unit does not appear to function correctly.
When small children are present adult supervision must be provided.
Protect the unit from strong impact, including being dropped.
If the unit is sharing a power outlet with several other devices when using extension
cords/multi-sockets, ensure the current rating of the cords/sockets are not exceeded.
Before using the unit in a different country, check the mains supply is correct for the AC
adaptor.
When disconnecting the AC adaptor plug, always grasp it by the plug body, not the wire.
When the unit is to remain unused for a length of time, disconnect the adaptor from the
mains.
Cables can be a risk to small children. Always place the out of reach.
Never climb, or place objects on top of the unit.

Leipzig-S/SK User Manual
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Using This Unit Safely | Analogue Solutions
Never handle the unit, the AC adaptor, or any cables with wet or moist hands.
Before cleaning the unit, disconnect from the mains.
Whenever you suspect lightning in the area, disconnect the AC adaptor.
Did you read all this? Good now you will be safe, but please still use what common sense
health and safety assumes we all don’t have!

Leipzig-S/SK User Manual
Analogue Solutions | Using This Unit Safely
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IMPORTANT NOTES
PLACEMENT
This device may interfere with radio and television reception. Do not use this device in the
vicinity of such receivers.
Do not expose the unit to direct sunlight or place it near devices that radiate heat, or leave
inside an enclosed vehicle, or otherwise subject it to extremes of heat. Excessive heat may
also discolour the unit.
Do not use the unit in a wet area, or expose it to rain or moisture.
MAINTENANCE
For everyday cleaning, wipe it down with a dry soft cloth, or one that has been slightly
dampened with water. To remove stubborn dirt, use a cloth impregnated with a mild non-
abrasive detergent. Afterwards be sure to wipe the unit dry thoroughly with a dry cloth.
Be sure to disconnect the AC adaptor before any cleaning.
Never use benzene, thinners, alcohol or other such chemicals and solvents to clean the unit.
ADDITIONAL PRECAUTIONS
Use a reasonable amount of care when using the buttons and knobs. Unreasonable use or
rough handling may cause damage or malfunctions.
Never strike or apply strong pressure to the unit.
When disconnecting or connecting any cable, hold the cable plug not the cable. Insert or
remove straight and perpendicular to the case.
To avoid disturbing your neighbours always keep your volume levels at a reasonable level.
When transporting the unit use the original packaging.

Leipzig-S/SK User Manual
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Using This Unit Safely | Analogue Solutions
MAKING CONNECTIONS
FRONT PANEL
REAR PANEL
Turn the input level down on your mixer.
Connect AUDIO OUT to your mixer using a standard ¼” (6.35mm) mono jack cable.
Connect the mains adaptor to the rear.
Rotate the SEQ SYNC rotary switch in the lower left corner to LFO to start the
sequencer.
Slowly increase the level on your mixer to a suitable level.
Note; you will have to adjust other controls on Leipzig to get a sound, like VOLUME,
VCO Levels, Filter CUTOFF. Many settings will produce no sound!
If you wish to play the synth with a MIDI sequencer or MIDI keyboard connect the
controller’s MIDI OUT to Leipzig’s MIDI IN.