TL;DR: Expert Sleepers has announced two new Eurorack modules ahead of Superbooth 2026: the NTX-8CV, a 4HP multi-purpose interface combining MIDI-to-CV, USB audio/CV interface, and disting NT expander duties; and Forever, a dedicated three-voice audio freezer module based on the disting NT’s Temporal Freeze algorithm. Both modules expand the developer’s already formidable digital toolkit for modular synthesists.
- The NTX-8CV squeezes three functions into 4HP: USB-MIDI-to-CV converter (based on FH-2 core), 8-channel DC-coupled USB audio/CV interface, and disting NT output expander with daisy-chaining up to 64 additional CV outputs.
- Forever offers three independent freeze voices with gate inputs, toggle switches, overdub capability, and octave-down playback for building massive soundscapes from a single module.
- NTX-8CV is priced at £179 (incl. VAT) / $219 / €172.25 (excl. VAT) and ships Summer 2026; Forever arrives Q3 2026 with price TBA.
- Both modules feature front-panel USB-C for firmware updates, configuration, and MIDI control — a hallmark of Expert Sleepers’ workflow-friendly design philosophy.
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NTX-8CV: The Swiss Army Knife of Modular Interfacing
We at Noxal have a soft spot for modules that do more than their faceplate suggests, and Andrew Ostler’s latest offering is textbook Expert Sleepers: deceptively simple, profoundly versatile. The NTX-8CV occupies just 4HP — that’s approximately the width of a well-fed biscuit — yet packs three distinct personalities under one panel.
First, it’s a USB-C MIDI-to-CV converter built on the same core as the beloved FH-2, but in a form factor that won’t eat your entire rack. The USB-C port pulls double duty: it can act as a class-compliant device for computers and tablets, or flip to host mode so you can plug a controller directly into your modular. No driver nonsense, no proprietary cables — just plug, route, and wiggle.
But that’s only the beginning. The NTX-8CV also functions as an 8-channel DC-coupled USB audio interface, meaning you can send audio-rate signals or control voltages straight from Ableton Live or Bitwig Studio into your modular. CV Tools users, rejoice: your laptop is now a modulation source. And if you’re one of the lucky few who’ve invested in the disting NT, the NTX-8CV serves as an output expander, adding eight additional CV outputs that can be daisy-chained up to 64 channels. That’s enough CV to animate a small army of oscillators.
Forever: Freeze the Moment, Not the Budget
Let’s address the elephant in the room: no, Forever is not named after Alphaville’s synth-pop classic, though we at Noxal would not object to a module that auto-plays “Forever Young” every time you patch it. Instead, this is a dedicated audio freezer that ports the Temporal Freeze algorithm from the disting NT into a standalone 8HP module with three independent voices.
Each voice gets its own gate input and a toggle switch for manual triggering, so you can freeze, sustain, and layer sounds without menu-diving. The overdub capability means you can keep adding layers into the frozen audio — think of it as a tape loop that never wears out. And when you drop the playback an octave down, those frozen textures gain a weight that can anchor even the most chaotic patch.
Pair Forever with Befaco’s new IROI module (which we covered in a previous issue), and you’ve got a soundscape generator that could occupy a whole afternoon of exploration. I’ve spent more time than I care to admit building drone patches that sound like dying spaceships — Forever seems purpose-built for that exact kind of productive procrastination.
Key Specs and Market Context
The NTX-8CV’s 36mm depth is worth noting — it’s shallow enough to fit in most skiffs, which matters when you’re cramming functionality into a compact case. The module’s three-in-one design also makes it a strong contender for anyone building a performance-oriented system who wants to minimize cable spaghetti and module count.
Forever, meanwhile, enters a market that already has strong contenders like the Mutable Instruments Beads (RIP) and the 4ms SMR for spectral freezing. But Forever’s advantage is its dedicated, no-compromise approach to the freeze effect itself — three independent voices, overdub, and octave shifting, all without sacrificing other functionality. It’s a specialist tool for a specific job, and sometimes that’s exactly what a modular system needs.
Pricing for NTX-8CV is refreshingly honest at £179/$219/€172.25 — not cheap, but reasonable given the three functions it replaces. Forever’s price remains a mystery, but if history is any guide, Expert Sleepers tends to price competitively for the feature set.
Who Are These Modules For?
The NTX-8CV is for the modular user who’s tired of buying separate MIDI interfaces, audio interfaces, and expanders. It’s for the laptop-in-the-rack crowd who want seamless integration with their DAW. And it’s for disting NT owners who’ve maxed out their CV outputs but still have room in their case.
Forever is for the soundscape builder, the drone enthusiast, and anyone who’s ever wanted to capture a single moment of a patch and stretch it into infinity. It’s also for the person who bought a disting NT primarily for the Temporal Freeze algorithm and wants a dedicated module that doesn’t require navigating that tiny screen. I know a few of those people. I may be one of them.
Both modules are expected to debut at Superbooth 2026, where we’ll hopefully get hands-on time to confirm they sound as good as they look on paper.
Frequently Asked Questions
Can the NTX-8CV be used as a standalone USB audio interface without a computer?
Yes, but with caveats. The module can function as a USB host, so you can connect a USB controller directly to it. However, for full audio/CV interface functionality, you’ll need a computer, tablet, or other USB host device to send audio and CV data. It’s not a standalone recorder — think of it as a bridge between your modular and your digital world.
How many freeze voices does Forever have, and can they be used simultaneously?
Forever features three independent freeze voices, each with its own gate input and toggle switch. Yes, all three can be used simultaneously, and each voice can be triggered independently, overdubbed, and played back an octave down. This allows for rich, layered soundscapes without needing multiple freeze modules.
Will the NTX-8CV work with the original disting or only the disting NT?
The NTX-8CV is specifically designed as an output expander for the disting NT, not the original disting modules. The disting NT has a dedicated expansion port that allows daisy-chaining multiple NTX-8CV units for up to 64 additional CV outputs. If you have an older disting, you’ll need to look at other Expert Sleepers expanders or consider upgrading to the NT.
We at Noxal will be at Superbooth 2026, likely nursing a lukewarm cup of filter coffee while Andrew Ostler patiently explains why we need both modules. The answer, as always, is yes.