Aion Electronics PENUMBRA BASS FUZZ Руководство - Страница 2
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TABLE OF CONTENTS
1 Project Overview
2 Introduction & Usage
INTRODUCTION
The Penumbra Bass Fuzz is inspired by the Zvex Woolly Mammoth and Mastotron, taking elements from
each but with some modifications for better usability.
The Woolly Mammoth is a full-frequency fuzz with no low-end cut, making it great for bass, but of
course it works great on guitar as well. It features controls for fuzz level, EQ, pinch (pulse width of the
wave form) and output volume. The Mastotron added a few controls but is otherwise identical.
The Penumbra is a combination of the two, including the Subs (Low) toggle but not the "Relax / Push"
control. This has been replaced by a transformer-based pickup simulator,
Orman of AMZ
and used by others including Earthquaker Devices in their Erupter pedal.
Like many vintage fuzz circuits, the Woolly Mammoth works best when it's the first pedal after the
guitar. If its input signal is too low-impedance (i.e. coming from a buffer or an active pedal), it can
drastically change the character of the effect. The pickup simulator will convert any input impedance
into the impedance of a guitar pickup, so the Penumbra will behave as it should no matter where it's
placed in the chain.
This pickup simulator is on a toggle switch, allowing it to be easily bypassed. This way you can leave it off
if the Mammoth is the first pedal in the chain. When the pickup simulator is turned off, the Penumbra is
sonically identical to the original Woolly Mammoth / Mastotron circuit.
USAGE
The Penumbra has the following controls:
• Fuzz sets the amount of transistor gain and thus the fuzz level of the effect.
• Pinch changes the pulse width of the waveform, from symmetrical square wave on the left, to
asymmetrical on the right. It also affects the amount of gating.
• Tone allows the high-end to be tweaked without sacrificing the bass frequencies.
• Volume is the output volume control.
• Low is a 3-position toggle that changes the output capacitor, which controls the bass EQ.
• Pickup is a pickup simulator that allows the Penumbra to be used anywhere in the effects chain.
PENUMBRA BASS FUZZ
10 Licensing
originally designed by Jack
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