The 18 Watt is a guitar amplifier based on the RunOffGroove Eighteen design. It aims to emulate the tones of mid-late 60’s Marshall EL84-based 18 watt practice amps. This amplifier is a great addition to the collection of Run Off Groove designs.The 18 Watt does an excellent job of replicating the desired tones. It is a straightforward and reliable amplifier that gets the job done nicely. However, it is important to note that some fine bias tweaking is required for optimal performance. To achieve this, a multimeter is essential during the build process.Overall, the 18 Watt is a fantastic choice for guitarists looking to capture the classic tones of mid-late 60’s Marshall EL84-based 18 watt practice amps.

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