This month’s best new Eurorack modules include signal processing options from Make Noise, Buchla and ADDAC.
Read more: May 2025 Eurorack round-up
Make Noise Jumbler
There’s a bit of a processing theme to most of our selections this month, and the Make Noise Jumbler is a great place to start. Any new Make Noise release deserves a closer look, and the Jumbler is no exception. This is a 6×6 analogue signal combiner and distributor, compatible with CV, gates and audio signals alike. Take up to six inputs and you can mix them, combine them, crossfade, blend between waveforms or manipulate rhythms and clock signals.
The Jumbler is a deceptively simple module, like so many of the most rewarding creative tools tend to be. Patching multiple oscillators tuned to chords into the inputs, for instance, you can modulate the Rotate and Radiate inputs to create arpeggios or alternative chord voicings. Alternatively, take a single audio input and route it to multiple effects or processing modules, then mix the outputs and use the Jumbler to change the routing and blend different effects. Lovely creative stuff and good value at under £240.
Buchla & TipTop Audio Quad Sample & Hold/Polyphonic Adapter Model 264t
Like a lot of TipTop’s Buchla reissues, the 264t is a fairly straightforward module on the surface but reveals hidden depths once you explore further. Essentially a quad sample-and-hold module, each channel can also be operated in ‘track’ mode, in which the input signal is applied to the output for the duration of the pulse signal. In other words, the output latches on to the input until the pulse is released, at which point the voltage is held until the next pulse.
Crucially, the module is also compatible with Tiptop’s ART (Advanced Routing Technology) protocol, simplifying the process of creating polyphonic patches. The main applications here come from using the 264t alongside other Buchla modules like the 245t Sequential Voltage Source and 259t Complex Oscillator to create polyphonic patches. You can route in the CV outputs of the voltage source, select a key and scale, and then route the quantised outputs to the ART inputs of the oscillator.
It’s arguably one of the more esoteric Buchla reissues in the TipTop Eurorack series, the 246t is really most relevant if you want to explore polyphonic patches with other Buchla modules. Nevertheless, it’s good value at just north of £250 and well worth checking out.
Knobula Monumatic
Elsewhere this month, we’ve got more polyphonic options courtesy of Knobula. The brand has come to specialise in poly modules, and the Monumatic packs eight digital voices into a compact format, offering everything from conventional virtual analogue tones through to cutting-edge digital algorithms.
Best controlled via a MIDI signal, but also compatible with CV, the Monumatic’s real strength lies in how easily it allows you to dial in a versatile array of tones, with 16 different algorithms and straightforward filter controls. There aren’t any particularly quirky features here, just an efficient and effective approach. Top quality stuff.
ADDAC System ADDAC511 VC Stochastic Voltage Generator
ADDAC System can be relied upon to deliver, especially when refining a concept which is already proven to work. The ADDAC511 is the successor to the old ADDAC5-1 Complex Random, an excellent voltage generator in its own right.
Greg Scarth
