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Klavis

 

 

Logica 

XT 

user manual V1.0 

Page 

1

 of 

11

 

 

Logica

 

XT

 

Voltage-controlled multiple-input logic and gate processor 

Introduction 

Built upon the foundations of its acclaimed predecessor, this new version drastically expands the 
feature set within the same footprint. All the original goodies are still there, now enriched by a 
full list of state-based logic functions including a delay line. Faster processing allows perfect 
handling of audio signals. User editable settings are stored in non-volatile memory. 
With its versatility and features never seen before, the Klavis Logica XT will arouse your creativity 
and bring inventiveness to your soundscapes. 

 

Logica

Klavis

Div/2

Mode

& CV

Out

Inv.

XT

Manual

On

Or

And

Xor

1 Low

Even

Xtra

1

2

3

Clk

In

Clr

Clk

Set

Rst

Gater

1,2,3
Coin

D.S&H

1 High

Off

Gt~Tr

S/R. C

 

Features at a glance 

 

14 modes of operation:  

o

 

6 basic logic functions 

o

 

2 forced states 

o

 

6 advanced logic functions: 

 

The Gater adds-up multiple gate signals while 
maintaining each triggering with adjustable retrigger 
gap time 

 

Gate to trigger with adjustable pulse length 

 

Chronological sequence validation (safe locker) 

 

Toss a coin with different chance weighs from the 3 
inputs 

 

Flip-flop with separate Set and Reset 

 

Digital Sample & hold, with adjustable delay/memory 
line (from milliseconds to several seconds) 

 

3 normalized input jacks + user defined manual button for quad 
signal handling 

 

Settings stored in non-volatile memory 

 

Simultaneously normal and inverted outputs (e.g. And & Nand) 

 

Dedicated divider by two output 

 

Continuous  Bipolar CV control of the mode 

 

LED column telling the current operation mode 

 

LEDs on all outputs indicating the state 

 

LED on manual button indicating its default status 

 

Low consumption, skiff-friendly & compact module 

 

 

 

Summary of Contents for Logica XT

Page 1: ...D S H 1 High Off Gt Tr S R C Features at a glance 14 modes of operation o 6 basic logic functions o 2 forced states o 6 advanced logic functions The Gater adds up multiple gate signals while maintaini...

Page 2: ...ing up the current draw of all modules mA separately for each of 5V 12V and 12V rails If any of these 3 sums exceeds the available current of your supply for that voltage do not connect the module to...

Page 3: ...With simple logic functions these all work in the same way Any signal can be brought to any jack Normalization With simple logic unused jacks automatically get the necessary default value so that it i...

Page 4: ...active column Manual input button This button acts as a fourth input The default status of the button depends on the logic function selected Where it makes sense this default status can be changed by...

Page 5: ...ccepted and within that half only levels high enough will produce a logic one on the output So changing the amplitude or the voltage offset of the saw will change the width of the resulting pulse saw...

Page 6: ...ate sounds much different from cascading multiple 2 input Xor the div 2 out can even provide melodies out of subtly detuned static pitches Here is the detail of the Xor Xnor function Input jacks Out j...

Page 7: ...ines all inputs as an Or function does but also retriggers the output every time a new gate starts while one or more are already active All inputs work the same the button brings a 4th gate signal The...

Page 8: ...input 1 Signals may overlap only their rising edge is considered for proper validation The manual button inverts the current state of the output Coin This function offers 3 heads or tails random gener...

Page 9: ...l be delayed Turning the pot within its first half the LED column indicates the delay as follows LED off 1 input is copied to out on the next clock then up one LED at a time corresponding to 2 3 4 6 8...

Page 10: ...ne Below lowest Off Off On Input jacks are disabled Button inverts Summary Advanced logic White LED Function Out jack Details Top On On Input jacks are disabled Button inverts 1 2 Gater On if at least...

Page 11: ...and outputs can withstand signals between 12V and 12V without harm Jack Effective voltage range received or generated CV control input 5V to 5V All outputs 0 or 5V logic levels Input low to high chan...

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