Rega Osiris - Manuel (Page 6)

INTRODUCTION
Thank you for purchasing the Rega Osiris amplifier the highest performance Rega
amplification to date. The Osiris is a 162 Watt 8Ÿ (250 Watt 4Ÿ) super high performance,
dual mono amplifier housed in a custom Rega CNC machined aluminium case with high
thermal efficiency heat sinks. Designed around “minimalist” high gain power amplifier and
“passive pre-amplifier” circuit topology, a passive volume control and a single stage of
power amplification between the input and the speaker (ensuring the signal path remains
as short and clean as possible) the Osiris offers unrivalled performance, build quality and
styling.
DESIGN HISTORY AND INNOVATION
The main development objective was to create a no compromise audio amplifier. The
Osiris amplifier is the culmination of 32 years of our Rega engineers experience in
solid-state amplifier development. This expertise combined with the “clam shell” Elicit,
Exon and Hal amplifier circuits gave the foundations for the advanced amplifier circuit
found in the Osiris. All components selected during the design process (specialist audio
components were used throughout) were chosen for their sonic and electrical properties.
Using state of the art surface mount technology perfected whilst designing the latest
Elicit integrated amplifier we now arrive at Rega level IV amplifier circuitry and the Osiris
was created.
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