Perreaux SX60m - Manual (Page 17)

Finest
Quality
Components
Used
Throughout
The SX60m features a 98VA toroidal mains transformer directly
soldered to the PCB, Wima and Elna capacitors, highest quality
Zobel network and customized internal heat sink solution. The
PCB is double-sided and constructed from the highest quality
fibreglass base stock featuring 2oz copper.
The Power
Supply
Perreaux has specially developed a fully shielded 98VA internal
toroidal based power supply. No fewer than eight filter
capacitors are coupled in parallel providing a total of 17,600uF of
power supply smoothing, keeping ripple to a minimum. As a
result the power supply is extremely rigid, capable of delivering
instantaneous power requirements demanded by musical
transients. The result is significantly improved dynamic
capabilities.
Simple
control
functionality
Front panel features on/off LED indication. The rear panel
comprises a mains input receptacle, allowing the cord set to be
upgraded if desired, mains switch, high quality speaker binding
posts, unbalanced (RCA) and balanced (XLR) line inputs and
line outputs.
Block
Diagram
Ultra Short
Signal path
Careful attention has been paid to the signal path within the
amplifier. It is ultra short, guarded by ground planes where
necessary and carefully routed to avoid contamination from
power supply and high current bearing sections.
Input Stage Utilising a stable current source, along with accurate current
mirroring circuitry, the input stage of the SX60m, in combination
with the overall circuit topology, provides precise detail
resolution and definitive sonic transparency.
PCB Layout Special attention has been lavished on the PCB layout to keep
sensitive signal stages away from power supply and filtering
circuitry. The super clean custom designed power supply is
physically segregated from the rest of the sensitive electronics.
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