The Purity product range 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.

The Purity One-i utilizes the Class "A" balanced linestage circuit that started it all which is now coupled to a 250 watt Class D amplifier stage via internal transformer coupling between stages. The Purity One-i utilizes a relay based source selection allowing for full transformer coupling of all inputs; both single ended and balanced.

Due to it's unique design and dedicated power supplies for each stage, the One-i is essentially two separate components in a single chassis.

Unique topology and application of the most advanced technological resources and processes bring the Purity One-i to a threshold of excellence in sound reproduction.  Like the Purity Reference, the Purity One-i 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 front panel is equipped with a LED display screen indicating the volume level, balance control and mute functions.  Manual volume control is handled by a high quality encoder for a step-less advancement of volume in 1dB increments. A high quality relay based source selector is equipped with LED indicators to let you know what source is currently in use with the soft glow of orange LEDs.

Shown in the picture at right is the Purity One with the LED display readout turned off. All controls are still functional with the display off and come on temporarily to let you know what changes are being made via the remote.

The high quality remote handles all functions as well as providing the ability to turn the front LED display off.

Both the preamplifier, amplifier and remote system are equipped with their own dedicated power supply providing a dead quiet background and low noise floor. The Purity One-i is essentially a separate preamp and amplifier in a single chassis easily competing with $10k-$15k separates.

The One-i is equipped with 3 sets single ended and 1 balanced input. All inputs, single ended and balanced, benefit from transformer coupling. Transformer coupling is used between the preamp stage and amplifier stage for a true balanced signal throughout.

The One-i is also equipped with a preamp output that can be used in conjunction with the built in power stage to run an additional amplifier for biamping or a powered subwoofer. You can also use the preamp output on it's own without using the One's amplifier. When this option is chosen, the One-i will allow you to put the amplifier section into stand-by mode.

The power supply is the heart of any audio product and our innovative design is what allows the One to provide exceptional dynamic control as well as a black background. The One-i has Three independent power supplies. One for the preamp stage, and the amplifier having it's own power supply utilizing a high current toroidal transformer. The third power supply is dedicated to the remote system.

The One-i is built into the same high quality acrylic chassis as all other Purity Audio Design products.

The power section is equipped with all the necessary protection circuits including over temperature protection, Over/Under voltage and current protection as well as MOSFET DC protection.

Internally mounted LED's indicated any protection circuits being engaged.

Main Features

• 0 dB negative feedback preamp stage

• Pure tube preamp design (no transistors)

• shortest possible signal paths

• 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 

• Remote LED volume, balance, mute and display off

• Quality encoder manual volume control

• 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 between preamp and amplifier stages

• 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
   

•  250 watts per channel - 4 Ω

• 125 watts per channel - 8 Ω

• Delay turn-on amplifier stage

• Three Independent power supplies

• True Class A vacuum tube preamp stage

• Preamp output

• Clarity Cap signal path capacitors

• 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

Manufacturer Direct Price:  $8,495

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