VFE Pedals

Klein Bottle multiband mixer/looper

( 1 Review )

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Available in 2 color / graphic configurations - navy + white text, or teal + kelp forest graphic

The Klein Bottle was designed for the noise makers, soundscape artists, endless tinkerers and tone wizards. This epic pedal starts by splitting the input signal into three FX loops. Each FX loop has dedicated controls for pre-gain, HPF/LPF (bandwidth filters), and main mix level. This allows you to send different parts of the signal to different effects, and blend them all back together to create new tones out of your existing pedals.

But wait, there's more! The magic happens when you use the independent feedback controls to send the signal from one FX loop into another...and then back again! Keep your existing tone intact with the DRY knob, while layering a cornucopia of sonic goodness on top.

- Dedicated mixing, EQ, and routing controls for each FX loop

- Variable phase shift circuit on FX loop #1 to correct phasing problems, or to create phase cancellations between effects.

- Each FX loop's on/off foot switch can be set to latching or momentary operation

- 3 trails modes - ALL, SENDS (just the feedback loops), and none (middle position)

- Dry blend for mixing back in the original signal

- Filters can be 6dB or 12dB for more extreme EQ cuts

Includes 1-year warranty on parts & labor.


Want to learn more? Take a deep dive into the description from the Klein Bottle Kickstarter campaign page or check out the demo video by YouTube channel Knobs.



Enclosure dimensions: 5.7"W x 4.7"L x 1.5"H  (145 x 119 x 38mm)

With knobs & jacks: 6.1"W x 4.9"L x 2.3"H  (155 x 124 x 58mm)



Industry-standard 2.1mm, negative-tip DC power supply.

STANDARD - accepts 9V up to 18V (recommended)






STANDARD ~70ma @ 9V, ~130ma @ 18V

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1 Review

David Guidry Sep 12th 2018

Klein Bottle review

I think this is a great pedal. It’s a little large, but for the capabilities I think that it’s a fair trade off. It’s basically a mini mixer with 3 channels and lots of controls. The ability to run it at 18 volts for more headroom is a great option, I haven’t tried using it at 9 volts yet.

I’m sure I’m not using it to it’s fullest potential, but it’s really great at a lot of applications.snd has incredible potential.

There is an overall control for a dry signal to pass through the entire pedal, to be blended with the other 3 channels, or cut it out completely and only use the channels themselves.

In the first channel there is the ability to phase shift to get all-wet signals from pedals that don’t go all wet themselves.

All 3 channels are in parallel so that the signal from one channel doesn’t affect the others unless you choose for it to, and they each offer a send level and a return mix level for the channel, which is very useful for keeping the sounds of each channel pristine and distinct in the mix, or the ability to have that signal feed into either or both of the other 2 channels, each with its own mix level.

It’s also very useful for taming high output pedals, keeping the pedal output high and lowering its overall volume in the mix, or boosting/balancing pedals that have an inherent volume drop.

All 3 channels have 3 tier tone controls - a “width” switch, and hipass and lowpass shelf knobs.

I think it’s a great pedal, basically a high end triple parallel mixer that allows controlled bleeding into other channels with an optional dry/thru signal. Its capabilities and applications far outweigh its size, if you can make the space for it.
It’s solid and top notch quality, in the usual VFE fashion.

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