Purity Statement
Dual Mono, Twin Chassis
Class A, Balanced, Transformer Coupled Linestage

PLEASE NOTE: The Purity Statement has been released in a Series 2 version.


The Statement dual mono balanced linestage is a  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 Statement to a threshold of excellence in sound reproduction. 

The Purity Statement utilizes all the advanced features one would come to expect from a world class product.. The Statement brings to the table Bybee Purifiers (silver units in the Silver Statement) in the input signal path and full silver/Teflon wiring throughout. Bybee Purifiers are also found in each of the two power supplies prior to the rectification circuit for the ultimate in residual noise filtering. Teflon tube sockets and a silver plated wired power supply, including filament circuitry, and umbilical connection cord are also found in the PSS enhancements. The Statement is also equipped with Cryogenic Treated Silver audiophile fuses.

 The Statement has a unique employment of output gain selection. rather than installed sonic purity robbing resistors in the signal path, Purity Audio Design has come up with a unique way of obtaining six output gain levels using specially design autoformers as not to impart of the sonic integrity of the circuit or degrading impedance interactions.

A distinctive feature of the Purity Statement setting it apart from it's competition are its full dual mono power supplies found in a separate chamber located in an outboard chassis (shown at right) also meant to act as a base for the analog chassis. Our power supplies are choke filtered and use only polypropylene filter capacitor banks. To add to it's main features, the Purity Statement utilizes transformer coupling at both the input and output with full silver transformers used in the Silver Statement. Transformer coupling output results in a low output impedance making for better integration with any type of amplifier. Highest quality acrylic encapsulated "Purity Caps" made by Clarity Cap and then Bypassed with V-Cap TFTF (Teflon) capacitors are used in the final stage of the circuit. Attenuation is handled by a balanced autoformer design with  Bybee purifiers at the input. Silver Bybee Purifiers are utilized in the Silver Statement. Extraordinary transparency of perceived sound which in turn assures the recreation of a three dimensional soundstage.

Extensive research, testing and listening led us to a unique, innovative design that achieves very low distortion and wide bandwidth without the need for negative feedback which destroys transient purity.

The full function remote handles volume, mute, balance, source select and phase as well as being able to completely turn off the display. A very precise autoformer attenuation provide 1dB increments. All remote features can be used both in active and passive mode.

Another unique feature of the Statement is fully transformer coupled, balanced passive mode. The Statement's passive mode provides greater detail, resolution and transparency than any other passive device on the market at it still routes the signal through the input and output transformers,  Bybee Purifiers and of course the wonderful sounding Autoformers. Copper transformers and Bybee Purifiers are used in the Statement with all silver units used in the Silver Statement

All Purity Products can be configured to run with the following mains voltages: 110V- 117V or 220V-240V. Primary voltages are factory wired so let your dealer know what voltage arrangement you need at time of ordering.

As with all Purity Series products, the remote circuit has been granted a dedicated power supply including a separate, standalone power transformer as not to interfere at all with the analog circuit.



  • Type : Dual mono, dual chassis Class "A", zero feedback, vacuum tube preamplifier
  • Inputs : Unbalanced ×3,  Balanced ×3 (unbalanced inputs transformer coupled)
  • All inputs go through a balanced transformer (unbalanced outputs transformer coupled)
  • Outputs : Unbalanced x2/ Balanced x2-- ("pin 2 hot" studio standard, pin 1 grounded with lift option)
  • Function : Input selector, Volume, Phase Inversion, Balance, Mute & Display on/off
    All functions controllable via both remote and front panel
  • Passive mode - fully transformer coupled with all functions
  • Input impedance: 100K ohms
  • Output impedance: <180 ohms
  • Frequency response: 13Hz-35kHz -1dB
  • Output gain: via autoformer based gain selector
    6 position in 3dB increments
  • Total harmonic distortion: 0.05% @ 1V output
  • AC Power Requirements : 117/220/230/240 volts (factory wired)
  • Fuse 1 amp fast blow x2
  • Tube lineup : 5814/ECC82(12AU7)×2
  • Dimensions :
       Overall: 17" Wide x 15" Deep x 12" High
       Main Chassis: 17" W x 15" D x 7.5" H
       Power Supply: 17" W x 15" D x 4.5" H
  • Net Weight : 46 lbs.
  • Shipping weight: 130 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
  • Teflon tube sockets
  • Central one-point earth grounding
  • Fully hand assembled to insure the highest level of craftsmanship 
  • AVC – “autoformer volume control”, 2 channels / 61 steps @ 1dB ea.
  • Autoformer based, 6 position output gain selector
  • Relay based source selector
  • No common ground between any inputs.
  • 100% point to point wired - NO PCB
  • Special ROHS silver solder used for the best electrical connection
  • Selector switch engages relays located near RCA jacks to switch all inputs
  • 2 12AU7 tubes for stereo line-amplification ( tube life > 10000 hrs )
  • Supplied with NOS 5814/12AU7 type tubes
  • DC filament supply for signal tubes (separate power supply per tube)
  • Balanced Silver output transformers (Custom made for Purity Audio Design) - Silver Statement
  • Balanced Silver input transformers (Custom made for Purity Audio Design) - Silver Statement
  • Balanced Copper output transformers (Custom made for Purity Audio Design) - Statement
  • Balanced Copper input transformers - Statement
  • Highest quality Clarity Cap MR Series output coupling capacitors
  • V-Cap TFTF inner stage coupling capacitors
  • V-Cap TFTF Bypass capacitors
  • Premium internal signal cable uses ultra pure Silver/Teflon
  • Bybee Purifiers installed in signal path - Silver Statement
  • The beautifully crafted 100% acrylic enclosure for maximum anti-vibration resonance
  • Twin chamber analog chassis design separated by copper lined aluminum effectively fights against RFI and EMI.
  • RCA high quality Teflon silver input jacks
  • Neutrik/Swiss - XLR chassis connectors
  • Remote Control for Volume, Balance, Mute, Phase Reverse & display off
  • All front & rear panel descriptions are laser engraved
  • Chassis finish: Black
  • Solid aluminum, laser engraved remote handset
  • Made in USA
  • Three years parts and labor warranty. 90 days on supplied tubes

Power Supply

  • Two large high current transformers (one per channel), RFI/EMI ultra-shielded (custom-made for Purity Audio Design)
  • Separate power transformer and DC power supply for remote control system
  • Choke filtered power supplies
  • Polypropylene power supply filter capacitor banks
  • StealthTM (Ultra Fast) diodes used throughout.


What our customers are saying

The table below shows you the primary difference between the Statement and Silver Statement models.

Feature Statement Silver Statement
Internal signal wire Silver Silver
Input transformers Copper Silver
Output transformers Copper Silver
Bybee Purifiers    

Upgrade Path:
Purity Audio Design has an upgrade path available. We have available the ability to take the Statement to a Silver Statement as well as either of the Statement models to one of the Ultra models.