Klavis Two Bits is a 5 HP Eurorack dual logic processor for patching gates, triggers and clocks. Its two logic sections can work independently, side by side as a single 4-input gate, or chained together. Alongside Boolean logic it covers edge-to-pulse conversion, gate merging, probability, clock division and multiplication, gate delay and voltage comparison. Klavis designed it to complement the Logica XT, and it is available with a silver or black panel.
-
15 functions, 30 with inversions: AND, OR and XOR in both sections, with a normal and an inverted output per section and an LED on every output
-
Section 1 extras: Set/Reset, -A&B, Alternate, and pulse on rising, falling or any edge with adjustable pulse length
-
Section 2 extras: Gater (gate merger with adjustable retrigger gap) and Vote (majority logic)
-
CV functions in section 2: Random, voltage comparator, clock divider/multiplier and delay, with input 2B as a bipolar CV input
-
Chaining: one button links the sections, and a second press inverts the chained signal
-
Automatic memory: user settings are saved and restored after power-up
Chaining is where Two Bits gets more out of its 5 HP. With a standard logic function in section 2, Out 1 becomes a virtual third input, so you get a 3-input AND or a 3-input majority vote without using a patch cable. With a CV function selected, section 1 acts as an enable instead, and its result is ANDed with section 2. This lets you, for example, gate a clock divider or a random pass with another rhythm.
The CV functions are useful on their own. The delay is FIFO-based, so a burst of pulses comes out later with its timing intact, over a range from 1 ms to 10 s. Random lets triggers through with a chance from 1% to 99%, and CV changes this in real time. The comparator checks input 2B against an internal threshold across ±5V, and a high signal at 2A flips the result. The divider/multiplier offers nine ratios from /16 to x16, and CV moves it toward faster or slower ratios.
Any waveform can drive the inputs, and the module works from DC into the audio range. Running a saw through OR produces a pulse wave whose width follows the saw's level, which opens the module up to logic-based sound design as well as rhythm work. Unpatched inputs are ignored, and outputs can be combined into an OR by joining them with a passive multiple. White LEDs next to the knobs show whether a knob's position matches the active function. Firmware updates are installed by playing an audio file into input 1A. Power draw is low and the module is shallow, so it suits small skiff cases.