The Shin-Ei Original Uni-Vibe is a legendary phase shifter effect pedal designed by audio engineer Fumio Mieda. Introduced in the 1960s, it was originally marketed as the Vibra-Chorus by Japanese company Shin-ei (then known as Honey). The pedal was designed to mimic the sound of radio signals from Russia undergoing atmospheric modulation, creating a unique chorus and vibrato effect for electric organ or guitar.

The original Shin-Ei Uni-Vibe features a distinctive metal hood with a mirror-like interior, an incandescent bulb, and four Light Dependent Resistors (LDRs). This unique arrangement is believed to be essential for producing the pedal’s signature sound. The pedal also has an external speed control foot pedal, allowing for precise control over the effect.

The Shin-Ei Uni-Vibe has been widely used by many famous guitarists, including Jimi Hendrix, David Gilmour, and Eric Clapton, to name a few. Its thick, rich “chorus” effect has become a staple in classic rock music. While many companies have copied the Uni-Vibe's design, many players agree that there’s no substitute for the original.

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Demo by Isaac Berumen

Demo by Fret Junkies

Official Website

Review by gilmourish.com

Review by Catalinbread Blog

Uni-Vibe

Designed by electronic guru Lee Jackson, the B1G 1 Gain Booster was engineered to be a high fidelity, studio quality gain boost ( It features +32db of clean headroom!) without adding or detracting anything from the original signal. It is in effect, an analog pre-amp on par with vintage and modern recording studio channel strips with some extra added "love".

Demo by Ramon Goose

Official Product Video

Product Page

Review by Pedal of the Day

Review by Stompbox Steals

Review by The Gear Page

exp pedal

Shin-Ei Vibe-2: This pedal is built to deliver the classic "Vibe" sound, featuring two speed controls operated by a front panel foot switch. It allows users to switch between True-Bypass switching and the original Uni-Vibe's Preamp mode. The pedal is powered by a 24V DC power supply and is known for its high-quality construction and attention to detail.

The Vibe-2 is smaller and more pedalboard-friendly compared to its predecessors, making it a suitable choice for guitarists with limited pedalboard space.

B1G Black