JAM Pedals Red Muck Bass B-Stock (Mislabeled)

The JAM Pedals Red Muck Bass B-Stock (Mislabeled) is a discounted batch of the Red Muck Bass, JAM Pedals' bass fuzz/distortion pedal. JAM Pedals produced a small run of these units in which the Mix knob was printed with an "S" instead of an "M", and sells them at a reduced price as B-Stock. The pedal itself works exactly as designed: the knob labeled "S" is the Mix control, blending your dry bass signal with the fuzz¹.

JAM Pedals describes the Red Muck Bass as a full-bodied fuzz/distortion that brings Triangle and Red Army/Civil War Muff-inspired weight to bass without sacrificing definition. The clean blend is the feature that makes it a bass pedal rather than a guitar fuzz with a different label: mixing dry signal back in preserves your attack and low-end definition while the fuzz side does its work¹.

What the mislabel means

JAM Pedals states it plainly on the product page:

That is the entire defect. The control functions as the Mix knob, setting the ratio between dry bass and fuzz/distortion, so a player who knows the "S" label is really "M" loses nothing. In exchange, the B-Stock listing carries a regular price of £199.00 against a sale price of £219.00 as listed, while the standard Red Muck Bass is listed at £219.00¹². Prices are shown in GBP as JAM Pedals lists them on its site.

The B-Stock units also ship under JAM Pedals' standard terms: shipped DDP with 20% UK VAT and all duties included, no extra charges on delivery, free shipping, and a 30-day money-back guarantee with a refund, no questions asked¹.

The controls

The Red Muck Bass keeps its control set simple: three knobs shared with the guitar version, plus the Mix control that defines the bass version¹².

Because the pedal draws only 12 mA at 9V DC center-negative, it fits easily on a shared pedalboard power supply¹. True bypass switching means the pedal stays out of your signal path when disengaged¹.

Circuit origins

JAM Pedals says the circuit draws on the Triangle and later Red Army/Civil War Muff designs, adding a smoother response, stronger mids, fat lows and an expanded Tone range¹². Those references are to vintages of the Electro-Harmonix Big Muff family: the Triangle version and the later "Red Army"/"Civil War" era units, both of which fuzz players chase for their particular voicing. Delicious Audio's guide to fuzz types likewise groups the Red Muck MK2 among Muff-style fuzzes³.

The guitar version of the pedal, the Red Muck, has been covered by RockBoard's PedalPedia, which describes the V1 as a boutique fuzz/distortion pedal from JAM Pedals carrying true bypass switching, and lists it as discontinued in favor of later versions⁴. The bass version carries the same circuit family with the clean blend added.

Artwork variants

Like other JAM Pedals designs, the Red Muck Bass is offered in limited hand-painted artwork versions with the same sound and different artwork. JAM Pedals' Red Muck Bass Limited Artwork collection lists three: the "Achenbach" Red Muck Bass, the "Relic" Red Muck Bass and the "Brown" Red Muck Bass, each listed at a regular price of £294.00⁵⁶⁷⁸. JAM Pedals notes that every limited artwork pedal is a one-of-a-kind hand-painted piece, so individual units differ in detail from the photos¹.

The B-Stock mislabeled run is a separate thing from the artwork variants: it is the standard pedal with a printing error on one knob label, sold at the lower price¹.

Questions