by Blueshift

The First Supercapacitor-Powered Portable Speaker

View all updates Apr 04, 2014

Frustratingly Close!

Helium speakers will be shipping starting next week.

Hey Blueshift fans -

It’s been a long couple of months. I hope none of you have been as anxious about receiving your speakers as I have been about getting them out! The whole thing has been a learning experience for sure - when you aren’t physically doing something yourself, you only have so much control over when it happens. Especially when you are a much smaller business than most of your suppliers.

Things are going great, but continue to move more slowly than I would like. Most of the cabinets are getting paint in Hood River right now, we will be receiving them on Monday. It would have been nice to get them sooner, but the build quality is excellent and the finish looks great - it’s definitely better than the alternative.

We just received 100 custom cable assemblies from Precision Cable in Portland that will link the capacitor banks to the main amplifier / power management boards. It’s not really an exciting part, but I think it says something about the way the Helium speakers and Capacitizer kits are put together. There wasn’t a stock part available that met our requirements for a robust board-to-board power cable with a detachable connector, so we got one made. We could have just hard-wired the boards together, but that would make it marginally harder to swap out parts should you ever want to. This wasn’t cheap, but it’s one more piece of the system that’s built to last pretty much forever.

Similarly, a few hundred Torx-head bolts and T-nuts, are here waiting on the cabinets to arrive. It’s definitely an over-engineered and labor-intensive way to attach the control panels, but it’s the difference between being able to install and remove the panel a few times and being able to do it a few thousand times (in case your really like looking inside your speakers, or something).

Long story short - I’m really excited that these are going out the door soon. Thanks so much for your understanding about the delays and for your support of the project!

Have a great weekend, and thanks again for making this possible!

Sam Beck
Founder, Blueshift

PS I’m listening to Charles Mingus right now - these speakers are REALLY GOOD at acoustic bass, just in case you were wondering.

$46,065 raised

of $35,000 goal

131% Funded!
Not Available
Dec 19 2013
funded on

Product Choices



The Copper is a wired, powered speaker. It sounds great, and it looks killer - but it does have to be plugged into both power and an audio source. Includes power supply and 3.5mm cable - attach any device with a standard headphone audio output. Available in mono ($300) or stereo ($400). Stereo shown in image.


PILOT: Helium



The Helium is a capacitor-powered, portable wireless speaker. It charges in five minutes, plays for six hours at full volume, and sounds awesome. Includes Bluetooth receiver with Apt-X and AAC codecs, Fostex FE 126 driver, bamboo cabinet, and wall adapter. Built to last in Portland, OR.


EARLY: Helium



The Capacitizer is a DIY kit for building a capacitor-powered portable wireless speaker. Build your own enclosure for a high-efficiency driver, OR convert an existing high-efficiency passive speaker. Includes the assembled PCB, four 350F supercapacitors, a power supply for charging, hardware, and instructions. Tools and know-how required! Driver not included.


Double Down

A Helium Stereo speaker AND a Helium Mono for the ultimate listening experience.



Blueshift builds open-source electronics in Portland, OR. We are committed to products that last, so everything we make can be repaired and upgraded.

Sam Beck


Alberta Printed Circuits

PCB Manufacturer

RNB Enterprises

PCB Assembler

Scientific Research Company

Laser Cutter & Powder-coater


Audio Component Supplier

Blue Creation

Bluetooth Module Supplier

Laser Cutting Services Inc.

Laser Cutter & Etcher

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