Puresound P10 Phono Stage
The P10 is a valve phono stage designed for listeners who value the strengths of vinyl playback, offering a simple, carefully executed circuit that focuses on stability, accuracy, and musical coherence.
Key features:
• valve phono stage
• compatible with MM and high-output MC cartridges
• passive RIAA equalisation
• zero negative feedback design
• dual high-voltage rail power supply
• DC filament supply
Design and performance:
The P10 uses double triodes in a simple anode follower configuration for its gain stages. This straightforward topology helps preserve signal integrity while maintaining a natural and balanced presentation.
RIAA equalisation is implemented using passive components, ensuring long-term accuracy and avoiding the phase shift often associated with active equalisation circuits.
The absence of negative feedback contributes to a more open and direct sound, preserving the character and dynamics of the original recording.
Materials and construction:
• double triode valve amplification
• close tolerance metal film resistors
• polypropylene signal capacitors
• selected valves for consistency
• elaborately filtered HT power supply
The high-voltage power supply is a key part of the design. After rectification and smoothing, it is split into two heavily decoupled rails, providing independent and stable voltage to each section of the circuit. This contributes to low noise and consistent performance.
Sound characteristics:
• stable and composed presentation
• natural tonal balance
• low noise with strong clarity
• controlled and effortless handling of complex material
• good dynamic consistency
The carefully regulated supply and simple circuit allow the P10 to reproduce demanding recordings with a sense of ease and control.
Build and usability:
The P10 provides sufficient output to drive any standard line-level input. For low-output MC cartridges, a step-up transformer such as the Puresound T10 MC Step-Up Transformer is recommended.
Specifications:
• gain: 40dB (x100)
• cartridge compatibility: MM and high-output MC
• circuit: double triode, anode follower
• equalisation: passive RIAA
• filament supply: DC
Brand and design:
Puresound is a UK-based manufacturer focused on delivering high-performance valve audio equipment. The products are designed by Guy Seargent, whose background includes Audio Innovations, Voyd, Heybrook, JPW, and training in Japan with Audio Note / Kondo.
Note:
The P10 is designed for MM and high-output MC cartridges. Low-output MC cartridges will require a suitable step-up device for optimal performance. check out the matching Puresound T10 step up transformer
