Aion Electronics MERIDIAN Podręcznik - Strona 2
Przeglądaj online lub pobierz pdf Podręcznik dla Akcesoria do instrumentów muzycznych Aion Electronics MERIDIAN. Aion Electronics MERIDIAN 11 stron. Guitar exciter / compressor
Drukuj stronęTABLE OF CONTENTS
1 Project Overview
2 Introduction & Usage
3-5 Parts List
6 Build Notes
7 Schematic
INTRODUCTION
The Meridian Exciter/Compressor is a clone of the Guyatone (Nady in the USA) PS-021 Guitar Exciter /
Compressor and its cousin, the PS-020 Bass Exciter / Compressor.
The PS-021 can be looked at as three distinct circuits chained together. First is the classic Dyna Comp,
nearly a direct copy but with somewhat reduced sensitivity on the Sustain control, so its use is more as a
limiter than a sustainer.
The following stage is an exciter, which is very similar to a circuit from a Japanese electronics book in the
1980s (and not unlike the BBE Sonic Stomp, but with no frequency-specific control).
The last stage is a Big Muff-style tone control that pans between a bass emphasis and treble emphasis.
However, unlike the BMP's classic mid-scoop, there is a very slight mid hump throughout the rotation.
So while it's composed of familiar circuits, the end result is, as they say, more than the sum of its parts.
This is a killer tone enhancer that still enjoys revered status with many, but flies under the radar since it
doesn't have an association with any big-name artists or records.
The PS-020 is the bass version. The circuit is identical to the PS-021 except for five parts that have been
changed in the exciter and tone control to make the frequencies more suitable for bass. It also changes
the tone control to bring back the mid-scoop frequency curve, more similar to the Big Muff.
The Meridian is a direct clone of the original PS-021 and PS-020 except for two changes. First, it's been
converted to true bypass and the JFET switching has been removed. Second, the obsolete CA3080 chip
has been replaced by the current-production LM13700, which performs identically.
USAGE
The Meridian has the following controls:
• Sustain sets the compression threshold and amount of sustain, from subtle limiting to squish.
• Exciter increases the emphasis on harmonics. At 50%, there is no change. When turned to the left,
even-order harmonics are increased. To the right, odd-order harmonics are increased.
• Color is a tone control that pans between bass boost and treble boost.
• Level is the output volume control.
MERIDIAN EXCITER / COMPRESSOR
8 Drill Template
9 Enclosure Layout
10 Wiring Diagram
11 Licensing
11 Document Revisions
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