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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.

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!

In my previous post, I introduced my invention, Bitstream Autocorrelation: an accurate, extremely fast and efficient, time-domain pitch detection scheme. I argued that it can be

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.

8-String Flex Upgrade: LTD SC-208

This LTD SC-208 began life as an entry level 8-string for those interested in dipping their toe in the “deep end”. The stock setup included passive

A New Breed of Pickups

What do you get when you cross the Nu and the XR? The Modula. Our new baby: A full-range, semi-modular pickup that can be used for

Nus 4U 🙂

The Nus are back in stock. Sorry for the wait. Folks just can’t get enough of these little creatures 🙂

Nu Update: Roland 13 Pin Adaptor

You’ve been asking for this for a long time now. A gift to the Roland aficionado. Finally, a Roland 13 Pin Adaptor for the Nu Series Modular Active

Dead Bug! Prototyping SMDs

Gone are the days of DIP (Dual in-line) ICs. Most modern ICs are no longer offered in easy to use 2.54 mm (0.1 inch) pitch

Alpha Revisited 2017

Time to revisit the Alpha and replace Alpha’s pickups with what else but Nus and XRs! Dimarzios out, Nu and XRs in… Ehmm, OK I

Brothers In Arms: Nu-XR Combo

Last time, we designed a a common baseplate for the Nu and XR pickups. I think it looks good! Check it out. You have independent height adjustment for the

Nu-XR Combo

Some of you asked if it is possible to have the Nu and XR in a common baseplate. It turns out that it is indeed possible. The way

Nexus Update: Programming MCU Module

The MIDI module includes a small, general purpose 16-bit MCU (Texas Instruments’ MSP430) that converts control voltages (CV) to MIDI. It is designed to be hackable.

Op Amp Shootout Updated

Time flies! It’s been almost 4 years since I last updated our Op Amp Shootout page. Now It’s 2017, and this page is still our top hitter. I guess that

Nexus Update: First Batch

Here are some factory images of the first Nexus batch. We’re building a system! And this system is going to be awesome! Merry Christmas, Everyone!

Nexus Update: MIDI Module

This is the third part of the Nexus documentation series. The first part documents the Basic Kit, the second part details the Mixer Module. This time, we

Nexus Update: Mixer Module

This is the second part of the Nexus documentation series. The first part documents the Basic Kit. This time, we investigate the Mixer Module. Eventually, all

Nexus Update: Basic Kit

I’ll be providing the Nexus documentation in tranches. This is the first part of the series. Eventually, all of this will end up in a single

Nu Capsules Back In Stock

Nu Capsules, the world’s cutest active pickups 🙂 are back in stock. Come and visit our online store and get your sets. $19.99 per capsule. Minimum order

Announcing the Nexus

After more than a year of continuous refinement, I’m proud to finally release the Nexus. This small, hacker friendly breakout box connects your multichannel guitar to the

Nu Mixing

An often asked question about the Nu modular pickups is about mixing to mono, or even stereo. The typical assumption is that, just like any other active pickup,

Lo-Pro Nu Multi

The Standard Nu capsule already has a very low profile with a height of 7mm (See specs). But the baseplate and connectors underneath add some more

More NUs coming

More NUs coming in September. We have a new batch of these cute modular pickups. We’re producing more this time, but they typically sell out

Infinity Reloaded

Infinity… It’s all about sustain. Our goal is and will always be polyphonic sustain. Polyphonic sustain, plus extensive processing for each string, will give us musicians full control

Beyond the Guitar

It’s amazing what creative minds can come up with. There is exciting innovation everywhere, and it is not limited to the guitar. I thought violin (and