JAM Pedals Retrovibe B-Stock

The JAM Pedals Retrovibe B-Stock is the maker's own discounted route into the Retrovibe, a vibe pedal that covers both chorus and vibrato territory in one all-analog box. A toggle selects Chorus, which JAM Pedals describes as "the classic pulsing phase character," or Vibrato for "pitch-focused movement"¹. The B-Stock designation means the pedal is brand new with cosmetic blemishes only, sold at a reduced price: the regular price is £329.00 and the sale price £389.00 as listed¹.

The Retrovibe B-Stock is an all-analog unit from JAM Pedals, sold at a regular price of £329.00 with a sale price of £389.00 listed¹. It runs on 9V DC, center-negative power, with a maximum current draw of 120 mA¹.

What B-stock means here

B-stock, in JAM Pedals' own wording, is "Brand new, cosmetic blemishes only"¹. The circuit, controls and functionality are those of the regular Retrovibe; the discount reflects the finish, not the build. The maker also notes that "the pedal you receive will differ in detail from the photos shown, making it uniquely yours"¹.

A few practical points from the maker's listing:

• The pedal ships DDP, with 20% UK VAT and all duties included, and no extra charges on delivery¹.
• Shipping is free¹.
• There is a 30-day money-back guarantee, with a refund "no questions asked" if you are not satisfied within 30 days of receiving the product¹.

Chorus and Vibrato in one pedal

The Retrovibe is a vibe pedal, a category descended from the rotary-and-photocell designs of the late 1960s, and it splits that character into two modes. The mode toggle selects Chorus, for the classic pulsing phase character, or Vibrato, for pitch-focused movement¹. In practice, Chorus mode mixes the modulated signal with your dry sound for a swirling, phased feel, while Vibrato modulates pitch only for a warble without the dry signal.

The modulation engine is all analog, with an LFO range of 0.5 to 9.5 Hz¹. That spread covers slow, liquid waves at the bottom of the range through fast, rotary-like spins at the top, the two extremes RockBoard's PedalPedia entry for the RetroVibe Mk.4 points to when describing what the two modes can explore².

Controls, connections and setup

The control surface centers on Speed and Depth knobs plus the mode toggle, and the mk.4 generation adds a second footswitch that expands what the pedal can do live¹.

The ramping function works like this, in order:

1. Hold the TAP/RAMP footswitch to ramp to a second speed¹.
2. While holding, adjust Speed to set where the ramp lands¹.
3. While holding, adjust Depth to set the travel time of the ramp¹.

Release the footswitch and the modulation returns to its base speed. This gives you a two-speed setup reachable with one foot press, without bending down mid-song¹.

The power-on state can also be toggled: insert power while holding the ON footswitch, and the pedal changes whether it comes up engaged or in bypass¹.

Specifications

Players and the artwork versions

JAM Pedals lists Paul Gilbert among the guitar players associated with the Retrovibe, linking to his artist page from the product listing¹.

If the B-Stock finish is not for you, the same circuit is available in six custom artwork versions of the RetroVibe mk.4, which JAM Pedals describes as "Same sound, different artwork"¹:

• JAM Pedals "Camper" RetroVibe mk.4³
• JAM Pedals "Fishbone" RetroVibe mk.4⁴
• JAM Pedals "Paths" RetroVibe mk.4⁵
• JAM Pedals "Pink Eye" RetroVibe mk.4⁶
• JAM Pedals "Popped Art" RetroVibe mk.4⁷
• JAM Pedals "Skin" RetroVibe mk.4⁸

Each of these carries the same Chorus and Vibrato modes selected by toggle⁴⁵⁷⁶³⁸. Beyond the standard finishes, every limited artwork pedal is a one-of-a-kind hand-painted piece¹.

The maker

JAM Pedals is a Greek effects builder. The Retrovibe sits in a catalog that also includes the WaterFall chorus family, such as the JAM Pedals WaterFall and the JAM Pedals WaterFall Bass, alongside overdrive, fuzz and delay pedals.

Questions