The Purity Foundation is a Class A linestage designed as an audiophile product with the audiophile price. 


and is the result of years of intensive research directed at attaining the most accurate reproduction of recorded music.  Unique topology and application of the most advanced technological resources and processes bring the Purity Foundation to a threshold of excellence in sound reproduction.  To add to the main features, the Purity Foundation utilizes. Extraordinary transparency of perceived sound which in turn assures the recreation of a three dimensional soundstage.
With 4 sets of unbalanced inputs and 2 unbalanced outputs, connection possibilities are vast. When an unbalanced input is selected, the signal still passes through the input transformer maintaining a low output impedance as well as the resolution and transparency transformer coupling is known for.  Single ended outputs also benefit from transformer coupling. 

As with all Purity Series products, the remote circuit has been granted a dedicated power supply

The all important circuit contains what we have found to be the best combination of passive components to bring the Foundation alive while maintaining a high value.


Specifications: 

Circuit: 6922/6DJ8 Class "A" zero feedback
Stage Gain: 15.5dB
Input Impedance: 100k ohms
Output Impedance: 632 ohms

Phase: Inverts
Frequency: <19Hz->1MHz


Purity Audio Design

Foundation

Class A Tube Preamplifier

​Price TBD