Puresound P10 Valve MM Phono Preamp
Very good condition, approximately 2 years old.
The highly recommended Pure Sound 'P10' phono amplifier offers superb performance way beyond it's modest price point. Works with Moving-Magnet and high output Moving-Coil cartridges. For low output Moving-Coils, it is recommended to use a' step-up transformer. As with all PURE SOUND products - it is a joy to listen to pure and simple.
The man behind Pure Sound is GUY SERGEANT of Audio Innovations fame, so it should come as little surprise the products sound as good as they do for what is a relatively reasonable outlay.
PURE SOUND P10 (Phono amp) rrp: £799.95
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 P10 phono amplifier meets the very strict performance criteria required of all Pure Sound products and will give excellent results with vinyl records provided that it is used with appropriate ancillary equipment.
