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Nu Series v2

The Nu Series Modular Active Pickups are hacker friendly, general purpose pickups that can be used in a variety of applications.

Nexus v2

The Nexus is a small, flexible, and hacker friendly breakout box that connects your multichannel guitar to the outside world.


In the past few years, our Facebook Group has served us well and continually do so. It’s a nice forum, easily accessible if you are

GPU DSP — Latency

I must have stirred controversy in my previous post. Take the comments from this thread for example: The future of DSP?. I almost wanted to

All Black

Look, we have a few of these All-Black Nu V2 Multi. What do you think? It’s the same Nu Multi like before, but with a black

Nu Multi Basic

Update: Oh, and in addition to the Academic Discount just announced, we are also now offering the Nu Multi Basic set (less $40) for hackers

Academic Discount

Research is a crucial part of Cycfi. There’s this incessant desire to learn and keep abreast with the latest technologies, and we are all aware

Q Audio DSP Library

Announcing the release of the Q Audio DSP Library v0.9 beta: Q is a cross-platform C++ library for Audio Digital Signal Processing. Aptly named

Roland 13 Pin to Nu Multi

One of the most frequently asked questions is how to connect the Nu Multi to Roland gear. There are many ways to do it, from

Meredith – Basic Nu Multichannel Setup

There’s this discussion in the Cycfi Facebook group about creating a set of videos and demonstrations on “benefits of independent string processing”. I intend to do

Nu on an Archtop

Here’s something nice to start the New Year from Fabio Mittino. The guitar is a Cristian Mirabella archtop equipped with a swappable pickguard loaded with a special

Visualizing the Fourier Transform

I’ve always been fascinated with the Fourier Transform, even at a very young age. I’m also a very visual person and I always think graphically. I

Infinity Guitar

My holy grail… It’s been on the back burner for far too long since after its inception in 2014, giving priority to other projects such as the


A picture paints a thousand words… After more than a year in development, starting from my post about this new breed of pickups, here now

Nu Multi Acoustic Mounts

We’ve already worked on a few projects before, using Nu on the acoustic guitar. For such purposes, it makes sense to mount the Nu near

Øivind’s Modula 5+4

Øivind’s 9 string Strandberg is undergoing continuous evolution. Thankfully, he’s adventurous enough to be on the “Bleeding Edge”, so to speak, and patient enough to

Nu v2 Combos?

So, it’s been a common question: Will there be a Nu v2 combo like the Nu-XR combo we had before? Well, I’m sorry but it won’t

Easy Nu

This is probably the easiest way to wire up a Nu system! How much simpler can it be? This one is for a custom 4-string

Custom Nu Multi

We’re always ready to take your Nu Multi Custom orders. Check out the pictures below for some examples. How to proceed: See our standard configurations table below.

Pretty Meredith

Here are more pictures of Meredith. Two words come to mind: elegant simplicity. But hey, that’s a multichannel guitar and she rocks!


Meet Meredith, our first reference design. She’s a heavily customized Fender Stratocaster (with Grover locking tuners, passive pickups: Di-Marzio Chopper neck, EMG passive bridge and

Nu Multi for Bowed Instruments

Busy, busy, busy… Yesterday, I presented a scheme for the skewed Multiscale Nu Multi. Today, I’d like to present a scheme for Bowed instruments. I’m getting

Multiscale Nu Multi 7

It seems we’ll be making more custom Nu Multis. There are a few in the pipeline. Here’s a 3D rendering of a custom Nu Multi

Embracing Feedback

halldorophones  Here’s a very interesting musical instrument. A project of Halldór Úlfarsson, the halldorophone utilizes feedback to generate harmonically rich drones from six strings, with

Design Docs and Github

I take pride in giving attention to the finest details, to the point of obsession. All our projects are accompanied by well presented documentation. Hey,

Øivind’s Nu Multi 9

If I didn’t know any better, I’d say this was a 3D rendering. Look at that clean, sleek lines! I’m very proud to say we’ve

Honey, I shrunk the Reso

Previously, I introduced the Tone Block, a passive second-order (two-pole) resonant RLC filter with variable frequency and Q (resonance). It’s a simple and economical alternative to our Resonant Filter —

Here We Go!

Good day Y’all. I’m so proud to finally release the complete family of the Nu v2 along with the Nexus v2! We worked so hard on

The Tone Block

Overview The Tone Block is a passive second-order (two-pole) resonant RLC filter with variable frequency and Q (resonance). It’s a simple and economical alternative to our Resonant Filter,

Combating Noise

I’ve been wrestling with noise since the early days of the 6 pack project from whence the Nu project began. It’s enemy number one for me.

Nu v2 Multi

You’ve been waiting for this. I know! Well, here now is the final production prototype. The Nu v2 Multi is based on the Nu v2

Modula Pre-Production Prototype

Cycfi’s new baby is coming very soon: A full-range, semi-modular pickup: Modula. If you haven’t heard about this yet, go check out the New Breed of

Nu v2 Capsules

The Nu version-2 capsule is ready to go! Thicker permalloy ring for improved electromagnetic isolation, better string focus and crosstalk reduction. Bobbin-less coil to make

Fast and Efficient Pitch Detection: Bliss!

Updates: check out Synth Tracking and the Q Audio DSP Library where this is being actively developed. In my previous post, I introduced my invention, Bitstream Autocorrelation: an

The Last of the XRs

Almost immediately after I announced our Roadmap for 2018, the XRs and the current Nu modules went out of stock as people hurriedly grabbed what’s remaining


It’s amazing to see what luthiers are building using our pickups! THIS is a work of art! Exquisite build by Keith Felker of Mother Plucker Guitars


Simplify! I think that will be my mantra for 2018. Looking back, the current product line that we have including the XR Pickups and all

Modula 8 and 9 String Prototypes

So many things to do. So little time! I think Karl Steinberg was right in remarking that I have too many projects happening all at

Modula Update: Magnetics

I find it amusing when people talk about the “sound” of the magnet in pickups :-). The magnet has no sound! If you don’t believe

Modula Update: Nice Little Coils

Nice and clean! I just got a set of sample coils straight from the manufacturer and so we got excited and assembled these guys into the Modula’s dual coil

Modula Update: The Preamp

Look what we have here! It’s the Modula Preamp. It’s a balanced design using the ADA4084 Low Noise, Rail-to-Rail Input/Output, Low Power Operational Amplifiers, with a 625μA supply

Fast and Efficient Pitch Detection

I needed to implement real-time, multichannel pitch detection in software using a small ARM Cortex-M4 microcontroller (MCU). My all-time favorite is the STM32F4 family from

Look, We’re on EEWeb!

Today, Cycfi Research is honored as the “Engineering Site of the Day” by the wonderful folks at EEWeb! Many thanks, EEWeb!

Modula update: Concentric Pots

Look what we have here! Concentric pots, anyone? We’re developing the next generation Resonant Filter and this might just be the key. Before, we had to

ADA4084: Can it get better than this?

Can it get better than this? Oh, I’m sure it will! I’m pretty sure we’ll see continuous improvements in Op Amp performance over the years.