Perreaux SILHOUETTE SXV1 - Manual (Page 18)

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Gain With a gain range of +40dB to +73dB, the SXV1 is incredibly
sensitive. Working in combination with the wide selection of R
and C loading the user has no need for messy MM/MC jumpers
as any type of cartridge can be matched via the external
selectable DIP switch settings.
Single
Channel
Block
Diagram
RIAA
Equalisation
The RIAA uses robust equalization architecture with high
precision, low noise resistors and highly linear metalised
polyester capacitors for optimum signal transfer. RIAA
deviation is ±0.5dB, 20Hz-20kHz, and from 100Hz-20kHz
deviation is a mere ±0.2dB.
Input Stage Perreaux have utilised the CA3046 transistor array package. The
main advantage of this device is that it features highly accurate
gain matching on account of the reason that the transistors all
share the same silicon substrate. The CA3046 device provides a
low noise but highly sensitive interface between cartridge and the
RIAA EQ section. Coupled with accurate current mirroring
circuitry and stable current sources, the circuit topology works in
combination to make for sonic transparency.
PCB Layout Special attention has been lavished on the PCB layout. The unit
is symmetrical in design (note the DIP switch numbers, they are
a mirror of each other, and the input/output RCA configuration),
with each channel being isolated from the other. The super clean
custom designed power supply is physically segregated from the
rest of the sensitive electronics.
Earth
Isolation
Special attention has been paid to ground planes to maintain
sonic purity. All signal grounding is isolated from mains earth.