Neutral Labs Unveils Luna CMOS Lunetta Synth as Kit, Desktop, Eurorack

Neutral Labs has unveiled Luna, a CMOS logic‑driven Lunetta instrument offered as a DIY kit, an assembled desktop synth, and a 42 HP Eurorack module. The company positions Luna as “the first serious Lunetta synthesizer” and markets it with the tagline “Logic, Unbound. Meet Luna,” framing the build as a modern revival of Stanley Lunetta’s 1970s–80s CMOS experiments.

Core architecture centers on five oscillators, two internal step sequencers in some oscillator paths, and a chaotic CMOS logic array. Matrixsynth’s hardware overview states “5 oscillators (2 with step sequencers inside), logic and pattern generators,” while Synthanatomy and Synthtopia list logic blocks including XOR, AND, shift registers, counters, and multiplexers; some sources also include NOT in their lists. Neutral Labs copy stresses the Lunetta lineage with the line “Rhythm is Timbre. Timbre is Rhythm.”

Luna’s timing fabric is built around two independent sequencers, each up to 64 steps and syncable to the onboard clock and to MIDI. Synthanatomy reports the instrument is “partially MIDI controllerable,” and DivKid’s video frames the device as a tool to treat sequencing and oscillation as interchangeable, noting the same pulses can yield “a screeching lead or folded into a metallic drone.”

Analog-style shaping and effects round out the design. The hardware uses three low‑pass gates to impart “natural decay and percussive punch,” language Synthtopia uses to describe how LPGs turn “mathematical errors into bongos, plucks, and thumping basslines.” A 2‑slot multi‑FX processor runs in serial with a total of 13 effects across sources, including drive, delay, reverb, bit‑crusher, comb filter, chorus, and phaser; Synthanatomy adds that effects are CV‑controllable and that a small display provides visual feedback.

Patchability and front‑panel interaction are emphasized as core features. Elektronauts reproduces Neutral Labs copy headlined “The Nervous System Exposed,” and reports that Luna “features exposed CMOS inputs and outputs right on the front panel. You’re not just patching cables, you are rewiring the brain of the synthesizer itself.” Matrixsynth’s demo notes that the desktop module ships with 12 braided patch cables, and its video author thanked Martin at Neutral Labs for commissioning the demo, adding “The world needs more shift registers.”

Availability and pricing statements vary between outlets. Synthtopia says “Luna is available now to pre‑order, with a street price of $799 USD.” Elektronauts and Synthanatomy use stronger language, with Elektronauts stating “This has just been released today.” Given those conflicting reports, check Neutral Labs or authorized dealers for current stock and shipping timelines for the DIY kit, assembled desktop unit, and the 42 HP Eurorack module.

Community reaction is already visible in forum posts and demo videos. Elektronauts thread comments range from “Looking great, love the endless amount of patching points, but also … Comb Filter …!!!” to questions about racking the desktop unit into a Eurorack case; one user admitted a misread with “I should not type anything before morning coffee. I read incorrectly.” Between commissioned videos, DivKid chaptered demos, and multiple hands‑on posts, Luna is entering the Lunetta conversation as a deliberately raw, patchable instrument with modern conveniences and a few open technical questions to resolve with the manufacturer.