EarthQuaker Devices Blumes Jr MOSFET Mod Low Signal Shredder Bass Overdrive Pedal

As an affiliate partner, we may earn a small commission when you buy through our links — at no extra cost to you.

£149.99

This is a New EarthQuaker Devices Blumes Jr MOSFET Mod Low Signal Shredder Bass Overdrive Pedal from EarthQuaker Devices, now available in the Guitar Pedals category on Guitars Pedals Amps and Stuff.. Read More below.

Description

The EarthQuaker Devices Blumes Jr MOSFET Mod is a compact, bass-focused overdrive that takes the beloved Blumes platform and squeezes it into a smaller footprint with a distinctive MOSFET clipping flavour. Voiced specifically for bass, it delivers everything from gritty low-gain growl to full-on high-gain distortion, all while preserving the weight, punch and clarity of your low end. Built around an all-analogue circuit with internal bipolar power, Blumes Jr offers increased headroom and a more three-dimensional response that feels dynamic and responsive under the fingers. Simple Gain, Tone and Level controls make it quick to dial in, while EarthQuaker’s Flexi-Switch relay-based true bypass gives you both latching and momentary operation for creative on-the-fly stabs and accents. Bass-Voiced Overdrive with Double the Gain Blumes Jr is designed from the ground up for bass, with a deeper low-end response that keeps your fundamental intact even at more extreme settings. With double the gain of the original Blumes, it covers a wide spectrum from subtle tube-like warmth to aggressive, saturated drive that can push your amp into serious grind. All-Analogue Circuit with Internal Bipolar Power The all-analogue signal path is enhanced by internal bipolar power, increasing headroom and dynamic range so your notes stay articulate and defined. The result is a more open, three-dimensional tone that reacts naturally to your playing, whether you are digging in with a pick or playing softly with your fingers. MOSFET Clipping for Characterful Drive The MOSFET clipping modification gives Blumes Jr its own distinct voice, adding a touch of amp-like texture and harmonic richness. It delivers a satisfying crunch at lower gain settings and a tight, focused aggression when pushed, making it equally at home in rock, punk, metal and modern worship contexts. Compact, Pedalboard-Friendly Design With its small enclosure and low 25 mA current draw, Blumes Jr is easy to integrate into any bass pedalboard. The Flexi-Switch relay-based true bypass lets you choose between standard latching operation and momentary activation, so you can punch in bursts of drive for fills, accents and transitions without changing your core setup. Key Features Bass-Focused Overdrive Voice – The circuit is voiced specifically for bass with an extended low-end response, so your fundamental notes stay full and powerful even at higher gain settings. You get drive that enhances your tone rather than thinning it out. Double the Gain Range – With twice the gain of the original Blumes platform, Blumes Jr moves effortlessly from mild, crunchy breakup to heavy, saturated distortion. This wide range makes it a versatile choice for everything from subtle grit to full-on low-end shred. All-Analogue MOSFET Drive with Increased Headroom – The analogue circuit, MOSFET clipping and internal bipolar power combine to deliver a dynamic, amp-like feel with added clarity and headroom. Your playing nuances come through clearly, whether you are using it as a main drive sound or to push an already driven amp. Flexi-Switch Relay-Based True Bypass – EarthQuaker’s Flexi-Switch system offers both latching and momentary operation from the same footswitch, giving you flexible control over how you bring the effect in and out. The relay-based true bypass keeps your dry tone intact when the pedal is off. SpecificationsGeneral Brand: EarthQuaker Devices Model: Blumes Jr MOSFET Mod Pedal Type: Bass Overdrive Drive Type: Tube Screamer Style Circuit Type: Analogue Instrument: Bass Bypass: Relay-Based True Bypass Controls Gain: Adjusts the amount of overdrive Tone: More bass to the left, more mids in the middle, more treble to the right Level: Sets the overall output volume Electronics Clipping Type: MOSFET Input Impedance: 10 MΩ Output Impedance: 100 Ω Switching: Flexi-Switch relay-based true bypass Momentary Switching: Yes Latching Switching: Yes Mono/Stereo: Mono Power Power Requirement: 9V DC Conne…

About the manufacturer

EarthQuaker Devices

EarthQuaker Devices are known for making standout effects pedals and more. Founded with a passion for tone and innovation, their gear has shaped countless records and players’ sounds. Look out for their iconic designs and flagship models — they’ve earned a reputation for reliability and creativity.

More info about this Product

Guitar Pedals

Guitar pedals are compact effects units that shape and enhance a guitar’s sound, sitting between the instrument and the amplifier. They include gain pedals like overdrive and distortion, modulation effects such as chorus and tremolo, time-based effects like delay and reverb, and essential utilities including tuners, compressors and loopers. Understanding basic things such as pedal type, signal order, power requirements and intended use helps players choose pedals that suit their style, setup and playing environment.

Overdrive Pedals

Overdrive uses soft or moderate clipping to add harmonics and compression while retaining more of the original note shape than heavy distortion. Some circuits emphasise the midrange and trim bass before clipping; others remain broad, transparent or amplifier-like. Gain, clipping arrangement, headroom and tone filtering decide whether it supplies a light edge, a saturated drive sound or extra push into another gain stage.

More Gear like this

Bass

Bass gear is all about laying the foundation of the music, providing depth, groove and connection between rhythm and harmony. From bass guitars and amplifiers to pedals and accessories designed specifically for low frequencies, everything here is built to deliver clarity, punch and control. Whether you are holding down a steady rhythm or shaping a more melodic bass voice, the right bass equipment helps you stay locked in and felt as much as heard.

Guitar Pedal

Guitar pedals alter, route, control or support an instrument signal from the floor. The tag covers individual effects, multi-effects, switching, tuning, looping, amplification and pedalboard utilities. The product category and additional effect tags identify the specific job each pedal performs.

Overdrive

Overdrive pedals add warmth, grit, and natural compression to your tone, capturing the feel of a pushed tube amp. They respond dynamically to your playing, offering everything from a light bluesy crunch to full, saturated rock tones. Perfect for boosting solos or shaping your core sound, an overdrive pedal brings character and life to any setup. Whether you prefer vintage smoothness or modern bite, these pedals are essential for players who want expressive, touch-sensitive drive with plenty of personality.