CopperSound Cir-Kit Breadboard Bundle Shrieking Eel

A "Shrieking Eel" Kit Designed for Experimentation, in the CIR-KIT Spirit

The CIR-KIT Breadboard Bundle Shrieking Eel is part of a range of discovery-oriented kits: instead of starting by soldering "blindly," you prototype first on a breadboard, validate the circuit's behavior, then decide whether to move on to the next step. This approach makes musical electronics more accessible and, above all, much more fun: you understand what you're doing and immediately hear what changes.

Within the CIR-KIT family, the idea is also to offer several "building blocks" of iconic or classic-inspired effects (hard clip distortion, silicon fuzz, MOSFET boost, 3-band EQ, treble boost, etc.), while maintaining a common logic: test, compare, learn. The Shrieking Eel bundle focuses on this specific circuit, designed to be approachable for prototyping and rich in adjustment and variation possibilities.

Who This Bundle Is For: Curious Guitarists, Tinkerers, and Aspiring "Pedal Builders"

This kit is aimed at musicians who want to go beyond simple "plug and play." If you enjoy understanding how a pedal shapes tone, if you've ever hesitated between two variants of the same circuit, or if you want to dip your toes into DIY without getting stuck at the first solder joint, this bundle is made for you.

It suits both motivated beginners (thanks to the guided approach) and more advanced users looking for a quick playground to test ideas. Style-wise, it depends on how you configure the build, but it typically fits a "sound and feel" approach: rock, garage, indie, more abrasive textures, or conversely a tamer drive depending on component choices. Context-wise, it's ideal at home, in the workshop, in a home studio, and perfect for preparing a future "final" build destined for the pedalboard.

Features and Approach: Breadboard Prototyping, Then Decision Before Soldering

The major strength of this bundle is the workflow fluidity. You build and test the circuit on the included breadboard, with an intuitive guide that supports you progressively. This method drastically reduces the risk of "soldering everything only to discover something is wrong," and accelerates learning: each step has a purpose, an expected result, and a logic.

Another key point: this format encourages immediate comparisons. You can experiment (depending on the circuit design and supplied components) with typical DIY substitutions: variations of clipping diodes, capacitor values, filtering points, gain and level adjustments, etc. All with a simple but crucial constraint: test components before breaking out the solder. If a defective component is identified before assembly, it is recommended to contact us before building to arrange a replacement.

Sound

The "sound" of a breadboard bundle is not fixed like that of a sealed pedal: it depends on your build, your test power supply, and your component choices. That said, the spirit of the Shrieking Eel is clearly oriented towards an expressive experience, where you seek both tone and responsiveness under the fingers. With this type of circuit, you generally appreciate how pick attack, guitar volume, and playing dynamics can transform the perceived saturation, shifting from a more contained texture to a more biting character.

The expected result, once the circuit is validated, is an inspiring sonic base that invites you to refine: more edge, more density, more compression, or conversely more openness... Breadboard prototyping allows you to identify what you like, rather than adapting to a preset setting.

Technical specifications

Effects	EQ, Fuzz, Boost, Distortion	Use	electric guitar
Technology	Analog	Color	Multicolor
EQ	3 channels

Circuit	Shrieking Eel (Coppersound CIR-KIT range)	If a defective component is detected before assembly	contact the retailer before building for replacement
Goal	easy prototyping and learning through progressive steps before any soldering	Consumption	variable depending on the tested configuration and the circuit wired on the breadboard
Recommendation	test each component before soldering	Power supply	depends on your prototyping method (test power source required to operate the circuit once assembled on the breadboard)