Pure
Sound P10
phono preamplifier
The PureSound P10 is compatible with moving
magnet and high output moving coil cartridges.
Low output moving coil cartridges will require
the use of an additional step-up device or matching
transformer. Full output from the P10 is sufficient
to drive the line level inputs of any integrated
amplifier or pre-amplifier.
The
active amplification stages use double triodes
in a simple anode follower configuration. The
phono equalisation is achieved using passive
components and can therefore maintain its accuracy
over time without introducing the unacceptable
levels of phase shift found in active equalisation
stages. There is no negative feedback in the
circuit.
The
P10 features a particularly elaborate HT power
supply. After the initial rectification and
smoothing, the supply is split and two separate,
heavily decoupled high voltage rails are established.
These feed each half of the output valve while
further decoupling of each rail allows the cleanest
and most independent voltage rails possible
to feed each half of the input valve. The absolute
stability of this supply regardless of the demands
made by the audio signal on the circuit, lends
the P10 a stability and poise which allows effortless
reproduction of the most demanding source material.
The valve filaments are also fed by a DC supply
thereby ensuring constant operating conditions
for the amplifier.
The
circuit makes use of close tolerance metal film
resistors, polypropylene signal coupling capacitors
and selected valves.
The
gain of the P10 is 40 dB (x 100).
The
P10 phono amplifier meets the very strict performance
criteria required of all PureSound products
and will give excellent results with vinyl records
provided that it is used with appropriate ancillary
equipment.
Product
Review:
HiFi
World February 2008
The P10 Phono stage was awarded the top accolade
of 5 globes in the February 2008 edition of
HiFi World.
"... it had me reaching for LP after LP
in night long sessions. It's a product that
is very right, one that draws you into the music....
...one of the best phono stages around..."
Price
:
(including 19% VAT)
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