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  • Great Eastern FX Co. Obsolete Devices Distortion Filter D312A Pedal
Great Eastern FX Co. Obsolete Devices Distortion Filter D312A Pedal - Image 1


Great Eastern FX Co. Obsolete Devices Distortion Filter D312A Pedal

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£249.00

This is the Great Eastern FX Co. Obsolete Devices Distortion Filter D312A Pedal from Great Eastern FX Co., now available in the Guitar Pedals category on Guitars Pedals Amps and Stuff.. Read More below.

Description

The Distortion Filter D312A is part of the quirky Obsolete Devices series, where Great Eastern FX Co. dig into their stash of weird and wonderful vintage components and let their imaginations run wild!

It combines classic hard-clipping distortion with a powerful band-pass filter, unlocking a range of hard-hitting tones that are both strange and sublime.

Unique parts for unique sounds

At the heart of the pedal are three Soviet-era germanium pulse diodes (D312A, if you’re into part numbers). Set up for asymmetrical clipping, these unusual NOS diodes deliver complex, dynamic breakup with an expressive, almost vocal mid-range quality.

More than your average EQ…

To push the sound even further, Great Eastern FX added an analogue band-pass filter. With controls for Frequency and Depth, you can add subtle tone-shaping emphasis or pulverise a specific frequency into submission. Think classic cocked wah vibes, QOTSA-style filtered distortion, or just raw and organic dirt — it’s all in there.

Key Features

  • Gain & Level controls: Shape your distortion from gritty breakup to full-blown saturation with the Gain knob. Then use Level to match your clean signal’s volume, or crank it for extra punch.
  • Analogue band-pass filter: Sculpt your tone with pinpoint precision using the Frequency and Depth knobs. Go from subtle mid-range drive to aggressive, frequency-focused distortion.
  • Limited to just 165 units: Once they’re gone, they’re gone! This is a rare chance to add something truly unique to your board.
  • Designed & handbuilt in the UK: This pedal’s crafted with care by the Great Eastern FX Co. team using rare, vintage components.

Specifications

  • Power Requirements: 9V DC mains adaptor only (not included)
  • Current draw: ~10mA
  • Size: 125 x 94 x 55 mm (4.9” x 3.7” x 2.2”)
  • Weight: 390 g (0.9 lb)

About the manufacturer

Great Eastern FX Co.

More info about this Product

Distortion Pedals

Distortion clips the waveform more firmly than overdrive, generating dense upper harmonics, longer sustain and a more compressed response. Circuit topology and filtering decide whether the sound is tight and focused, broad and aggressive, smooth or deliberately abrasive. Gain sets the amount of clipping, while pre- and post-distortion tone controls strongly influence low-end definition, midrange presence and high-frequency texture.

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.

More Gear like this

Distortion

Distortion pedals deliver the raw, aggressive edge that defines rock and metal, transforming your clean tone into something powerful and full of attitude. By pushing your signal into rich harmonic saturation, they create thick, sustaining sounds that cut through any mix. From classic crunchy riffs to high-gain modern mayhem, distortion pedals give you total control over how wild or tight your tone gets. Whether you’re crafting searing leads or heavy rhythm walls, they’re an essential tool for adding energy, bite, and character to your playing.

Filter

Filter effects shape tone by allowing certain frequencies to pass through while reducing or removing others. By sweeping or adjusting the cutoff point, filters can dramatically change the character of a sound, from subtle tonal shaping to bold, expressive sweeps.

Filters are commonly used in pedals, synthesizers, and processors, often in the form of low-pass, high-pass, or band-pass designs. They are valued for their ability to create movement, focus, and texture, especially in funk, electronic, ambient, and experimental music.

Guitar Pedal

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