The Purity One is a Class "A" balanced linestage that started it all. The Purity linestage line is the result of years of intensive research directed at attaining the most accurate reproduction of recorded music.  The Purity One borrows much of the design from it's larger and more sophisticated siblings but without the dual mono power supply and advanced remote features. The Purity One utilizes a relay based source selection allowing for full transformer coupling of all inputs. Both single ended and balanced. An LED display readout  with remote volume and mute indicates volume level.

Unique topology and application of the most advanced technological resources and processes bring the Purity One to a threshold of excellence in sound reproduction.  To add to it's main features, the Purity One carries on the tradition of choke regulated power supply and quality components throughout.  Like the Purity Reference, the Purity One utilizes a dual chamber design within a single chassis. Extraordinary transparency of perceived sound which in turn assures the recreation of a three dimensional soundstage.

The transformer coupled output yields a low output impedance allowing the Purity One to mate up with most any power amplifier. Both tube and solid state.

The chassis is a matter of form follows function. The Purity linestages utilize a chassis comprised of a unique combination of 100% Acrylic. The top panel is removable for easy tube access.

Transformer coupled balanced inputs and outputs are standard.  All inputs, both single ended and balanced, benefit from transformer coupling. Single ended outputs are wired in conjunction with the balanced output providing all the benefits of the output transformer.

The back panel consist of 3 sets of single ended inputs and 1 set balanced, two each single ended and balanced outputs. Passive home theater bypass input. All inputs and outputs, including single ended, benefit from transformer coupling.

As with all Purity Series products, the remote circuit has been granted it's own dedicated power supply including a separate, standalone power transformer as not to interfere at all with the analog circuit resulting in a dead quite background and lowest possible noise floor.

Specifications
Type :  Class "A", Zero feedback, vacuum tube preamplifier
 Inputs : 3 Single Ended RCA / 1 Balanced XLR /1 Single Ended Home Theater bypass
Outputs : Transformer coupled
                  Single ended RCA x2
                  Balanced XLR x2
 Function : Remote volume, mute and balance
 Circuit gain: 13 or 17dB
Input impedance: 100K ohms
Output impedance:  180 ohms transformer coupled
Total harmonic distortion: 0.05% @ 1V output
AC Power Requirements : 117/220/230/240 volts (factory wired)
Fuse 1 amp fast blow
Tube lineup : 5814/ECC82(12AU7)×2
Dimensions : 17" Wide x 15" Deep x 7.5" High
Net Weight : 22 lbs.

Main Features

  • 0 dB negative feedback

  • Pure tube design (no transistors)

  • shortest possible signal paths

  • Very low output impedance to drive any tube or solid state power amp

  • Audiophile grade passive components used in all applications

  • Silver TC tube sockets

  • Central one-point earth grounding

  • Fully hand assembled to insure the highest level of craftsmanship 

  • Remote volume

  • LCD readout indicates volume level, source and mute.

  • 100% point to point wired - NO PCB

  • Special ROHS silver solder used for the best electrical connection

  • 2 12AU7 tubes for stereo line-amplification ( tube life > 10000 hrs )

  • DC filament supply for signal tubes

  • Balanced output transformers (Custom made for Purity Audio Design)

  • Balanced input transformers

  • Full transformer coupling for both inputs and outputs

  • Premium internal signal cable

  • The beautifully crafted 100% acrylic enclosure for maximum anti-vibration resonance

  • Twin chamber design effectively fights against RFI and EMI by separating the power supply from critical analog components

  • High quality Cardas silver input jacks

  • Neutrik/Swiss - XLR chassis connectors

  • All front & rear panel descriptions are laser engraved

  • Chassis finish: Black

  • Made in USA

  • Three years parts and labor warranty. 90 days on supplied tubes

Power Supply

  • A large high current transformer, RFI/EMI ultra-shielded (custom-made for Purity Audio Design)

  • Separate power transformer and DC power supply for remote control system

  • Choke filtered power supply

  • StealthTM (Ultra Fast) diodes used throughout  B+,

Manufacturer Direct Price:   $7,495

The picture below shows the rear panel of the Purity One's integrated hybrid version. The rear panel on the Purity One linestage only version utilizes the same rear panel but without the additional components required for the amplifier section.

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    ALL PRICES ARE IN U.S. DOLLARS. INTERNATIONAL SALES ARE WELCOME. SPECIFICATIONS AND PRICES ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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