Category Archives: XR Series

The Last of the XRs

      Evolution, Pickups, Uncategorized, XR Series, XR Update

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 in our inventory. I am very sorry that I had to turn down orders after the stocks were depleted.

Dan Rhodes sent me these nice pictures of his electric with Cycfi XR dual pickups, Cycfi Resonant Filter, Warmoth body and neck with a Decoboom pick guard, Fender locking tuners, roller bearing nut and Wilkinson tremolo.

“Looks and sounds amazing Joel! I spent some time with it last night and the tonal range of these pickups is amazing. The openness with the tone and Q maxed out is a sound I’ve never had before.”

Thank you very much for such nice appreciation. I am missing the XRs already!

But watch out. We are still actively pursuing the Modula, a new breed of pickups and the next evolutionary step for the XR. It didn’t die, it simply evolved! 🙂

8-String Flex Upgrade: LTD SC-208

      Custom, Customization, Pickups, XR Series

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 humbuckers, a 3-way selector, master volume and tone control. By converting to a Flex Set the switching options expanded from 3 to 5, the frequency response was greatly extended, and the guitar shed some weight along the way.

The finished guitar sporting an XR-8 based Flex Set and new Hipshot® fixed bridge.

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Complete XR Flex Sets 25% Off Starting Father’s Day

      Electronics, Events, Pickups, Store, Support Electronics, XR Series

Beginning Father’s Day, Cycfi Research is pleased to offer a 25% discount on complete systems featuring our XR Flex Series extended-range pickups. The discount applies to the purchase of our pre-configured XR Flex systems including S-S-S (3 XR Dual pickups) or H-H (2 XR Quad Pickups) for 6, 7, and 8 string instruments. In addition to the pickups, systems include a 5-way switch, Active Volume, Blend or Tone Control, Output Jack, 9V battery clip and all necessary cables and hardware. Complete systems with the Resonant Filter are also available.

The new discounted XR Series pickup-system pricing kicks off Sunday June 18, and will continue until new pricing is announced. Come and visit our store.

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Nu-XR Combo

      Nu Series, XR Series

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 to do it is have the Nu Multi, which has a somewhat lower profile, piggyback on the XR’s baseplate. This way, the Nu will still have its own height adjustment independent of the XR. You’d want the Nu capsules as close to the strings as possible (within 1mm to 2mm) to minimize crosstalk. Here’s the idea:

Announcing the Nexus

      Electronics, Hardware, Nexus, Nu Series, Release, Support Electronics, XR Series


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 outside world using a specialized (LEMO compatible) multi-pin connector for up to 12 channels of audio and 7 channels of analog control voltages for by-wire (remote) control of volume, tone, patch or effects. Audio may come from standard mono-pickups or from the Nu multichannel pickup. Analog control voltages are converted to MIDI control messages.

The Nexus and related support electronics are currently only available on pre-order basis, with a 3 week lead time for the first batch. Please send us a message for inquiries and orders.

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Exploring the 3-Way Toggle Hub

      Pickups, XR Series

Here we see the first installation to feature our Toggle Switch Hub which interfaces the classic LP-style 3-way switch to our Cycfi Active Series pickups. The guitar in question is an Epiphone Explorer in classic amber tinted Korina (white limba). Technology has finally caught up with the Explorer’s futuristic design resulting in a perfect marriage with our XR series pickups. 


The completed Explorer featuring (2) Cycfi Active Quad pickups, volume control and Resonant Filter.

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Toggle Switch Hub

      Electronics, Hardware, Support Electronics, XR Series, XR Update


As those who follow our products know, we have had options for users of the classic 5-way blade switch since the release of the XR series. We are pleased to announce that we have expanded the versatility of the XR series even further with a solderless option for those who wish to use the LP style 3-way toggle switch. Our 3-way Toggle Switch Hub serves as the central connection point for XR pickup systems and offers the versatility of customizable switching options.

The versatile design of the hub allows for connection of 2 XR Active Series pickups (2 Quads, 2 Duals or 1 of each) and numerous control configurations including:

  • 1-Vol 1-Tone,
  • 1-Vol 2-Tone,
  • 2-Vol 2-Tone
  • 1-Vol + Resonant Filter

The Toggle Switch Hub is now available at for $9.99 USD (switch not included). Learn how to install the Hub here.

Note: The Toggle Switch Hub is compatible with the XR Active Series pickup systems only.

Skewed Lefty Anyone?

      Custom, Customization, Design, Pickups, Store, XR Series, XR Update

Left-Handed Quad XR Flex Pickups

We are now (officially) offering custom baseplate Laser-Cutting service. You get two custom baseplates for the minimal $15 service fee. The baseplates are precision cut based on your specifications and individually hand-buffed to perfection. Send us your specifications: and we will send you back a CAD drawing (DPF and DXF) for confirmation (see example below).

See XR Custom Baseplate Laser-Cutting Service