P4 (Silver + Signature)

The P4 are Pure Class A Parallel Singled Ended amplifiers that use a pair of the highly regarded 300B direct heated triode valves in each chassis, producing a level of performance that is radically superior to the vast majority of current designs.
 
 
 
In comparison with the CONQUEST, the P4s have an attenuator at the input followed by a line-stage, so you can run them as one-source integrateds. Also, the P4s have an improved driver and power supply circuit.
 
 
 
They have been specifically engineered for sonic performance rather than technical specification, and fulfill all Audio Note (UK) Level 3 criteria: 
 
 
 
 
 
Pure Class A operation
 
 
Zero Negative Feedback
 
 
Parallel Single Ended Output Stage Valve Rectification
 
 
Directly Heated Triode operation
 
 
Materials and component quality
 
 
 
 
The Silver Signature versions build upon the already superb performance of the standard P4s and feature the following additions: 
 
 
 
 
 
Audio Note Copper Foil signal capacitors
 
 
Audio Note (UK) Tantalum film resistors
 
 
Audio Note (UK) IHiB Double C Core output transformers, with copper primaries and copper secondaries.