SKU: 43757902064

Unison Research Performance Integrated Amplifier

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Description

Unison Research Performance Integrated AmplifierPerformance Over the decades that Unison Research have been designing and building audio products, they have always listened to the concerns and comments of their valued customers; and over time they have realised that those customers' needs have changed. As a result of this ongoing willingness to listen, they are constantly developing new and existing products to suit the ever changing needs of their customers. Enter the latest version of the long

Performance

Over the decades that Unison Research have been designing and building audio products, they have always listened to the concerns and comments of their valued customers; and over time they have realised that those customers' needs have changed. As a result of this ongoing willingness to listen, they are constantly developing new and existing products to suit the ever-changing needs of their customers. Enter the latest version of the long-standing Performance integrated amplifier.

The Performance is a single-ended Class A integrated amplifier with a parallel internal layout for ultimate sound-staging and an authentic valve experience. This latest version offers increased power, when compared to its predecessor, while staying true to the important characteristics of timeless aesthetics and pure musical pleasure.

The few visual changes are due to functional necessity, such as the insertion of large thermic radiators on either side, and the two stainless steel screens that act as a cover. This cover is amegnetic, with low heat conduction and it's used to prevent the heat generated by the six KT-88s from reaching the circuitry below, which benefits the sound quality as well as overall reliability.

As with all high quality integrated amplifiers, the Performance is laid out in dual-mono configuration. Within the single chassis there are effectively two identical but fully independent amplifiers. This design avoids any possibility of interference, whether internal or atmospheric, between the two channels.

Unison Research's extensive knowledge of transformer production has resulted in a specially designed set of transformers for the Performance, which help the amplifier to give a true best-in-class performance. The parallel single-ended ultralinear configuration would be completely undermined if there were not suitably developed transformers in place, as the special design effectively allows the KT88 tetrode valves to be used as triodes. 

Valves are used for all the amplification stages, and all valves operate in pure Class-A mode. The pre-amplification and power stage drivers are based entirely upon triodes, with the use of high-grade ECC83 and ECC82 tubes. With these valves it is possible to obtain excellent linearity and a virtual absence of odd-order harmonic distorsion. Both these stages are designed with triodes in parallel and use automatic biasing for a long and reliable life. This allows the output impedance of the two circuits to be usefully reduced, while total harmonic distorsion is also reduced and signal to noise ratio is increased.

As well as a clear array of inputs and outputs on the back-panel - including separate speaker terminals for 4Ω and 8Ω loads - the Performance also benefits from a power output for the Simply Phono. So the amplifier also acts as an upgrade power supply for Unison Research's introductory phono stage.

The Performance is a true high-end masterpiece that benefits from both a long-standing reputation and up-to-date technology.

Key Features:

  • Improved design from the original Performance
  • Single-ended parallel, ultra linear dual mono integrated valve amplifier
  • Hand built in Italy
  • 45W output per channel
  • KT88 valves used in sophisticated output stage design
  • 4Ω and 8Ω loudspeaker terminals
  • Simply Phono upgrade power supply built-in
  • RC2 remote included
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SKU: 43757902064

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Sunshine 🌞
Houston, US
★★★★★ 5
Transformative!
Format: Paperback
This book is well written and extremely informative! It has definitely helped me to take the energy work I do to a whole new level I actually recommend all the books in this series!
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Reviewed in the United States on May 8, 2026
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Kathy W
Bozeman, US
★★★★★ 5
A Healer's Book
Format: Paperback
In my opinion, this book is most suited to the "healers". I am only part-way through it right now, but thoroughly agree with what I have read so far because I have either experienced it or it makes logical sense from where I am on my personal journey. The book is slow reading, not difficult, but slow if you really want to understand what Barbara has written as she combines science with metaphysical beliefs. I cannot compare this book to her first book because, although I purchased her first book years ago, I honestly have not read it yet. "Light Emerging" was recommended by my master teacher. Barbara has spent significant time studying the auric fields of people vs. behavior. I plan to return to this review at a later time and update it with additional information, but I see it as a valuable resource for a healer (for both healing self and healing others). By the way, if you don't know it already, healing is not limited to the physical body. There is emotional healing and spiritual healing as well. ALL are important. The healthiest people are those who are balanced on all levels. This 342-page book explains a lot about energy, both scientifically and metaphysically. If you have already done significant reading, this book expands on a lot of it, such as explaining the chakras and the movement of energy throughout the system. As Barbara goes through each chakra, she explains how you likely behave if that chakra is fully functioning or if it is blocked. Quite a few illustrations within the book visually show you the energy movements within people who exhibit certain types of behavior, and the movements of energy within groups of 2 people exchanging energies at certain levels. This is one way in which this book is different from many other chakra and energy vibrational books. An example is an illustration of a couple in dispute and how they energetically resolved the dispute. Barbara has the developed ability to see the auric fields, as some do, and she supplements her writing with experiences she has had with clients. In this instance, she explains the energy movement in 3 stages of the therapy between the couple, as well as illustrates it in picture form, so you can follow what is happening energetically between the couple throughout the process. Here is a little tid-bit for you from the book: Barbara mentions that Dr. Robert Beck, a nuclear physicist, found that all healers exhibit the brain-wave patterns of 7.8 - 8 Hz while they are giving healings, the same fluctuation of the earth's magnetic energy field (the Schumann waves). The assumption is that the healers are synching up with the earth's magnetic field when doing healing. Dr. John Zimmerman, founder and president of Bio-Electro-Magnetics Institute, found through additional research, that once healers have linked with the Schumann waves, the right and left hemispheres of their brain have become balanced with each other and show a 7.8 - 8 Hz alpha rhythm. After they link with the patient for some time through laying on of hands, they are able to link the client in with the same earth's energy magnetic pulsations. Good book. If you are into metaphysical energy and healing, I think you will enjoy it and find it very informative. If you are NOT into metaphysical energy and healing, you will likely not understand it and may get nothing from it, especially if you are not open to this area of study.
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Reviewed in the United States on August 31, 2008
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Steve in Tustin
Lexington, US
★★★★★ 5
Sequel to Hands of Light
Format: Paperback
Hands of Light has been widely recognized as the foundational text merging the Eastern approach to healing through cleansing and balancing a person's chakras and auras with the Western approach to healing through re-tuning a person's electromagnetic frequencies by applying the principles of quantum physics. Barbara's sequel, Light Emerging, further amplifies and extends these concepts. Specifically, she elaborates on the applications of the Holographic Model, the Creative Process and the mechanisms of Spiritual Guidance. She defines and diagrams the four dimensions of humanity at the Physical, Auric, Harac and Core Star levels. Through these four dimensions, average humans, once healed and balanced, can mature to be channels of energy, connecting heaven to earth vertically, and connecting all of humanity horizontally. The whole of Barbara's teaching can be incorporated into these four simple, clear and deeply profound diagrams. Since her previous book, Barbara set aside her private practice to establish a four-year university-level program to train and accredit healing practitioners to apply these disciplines. This book incorporates the further insights and experiences she gained through developing her School. Light Emerging is written specifically to instruct readers on how to self-heal and to give readers a preview on the commitment required to becoming a healing practitioner. This book is not intended to replace her School's four-year degree in healing. Appendix C offers links to current lists of her practicing graduates, by city and state. There is no duplication between her books. I personally benefited by reading and studying them side by side. I have also called a number of her graduates here in California and confirm they have both the meticulous training and proper motives to follow in Barbara Ann Brennon's footsteps. No fiction here. This book exemplifies the theory and practice of genuine physical, psychological and spiritual healing, either through self-study or through a practitioner.
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Reviewed in the United States on August 24, 2011
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Traci Mitchell
Birmingham, US
★★★★★ 5
only you can initiate the healing response
Format: Kindle
We are all divine light and this book gives you the tools to access your own healing response to live your life in light and love.
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Reviewed in the United States on November 5, 2025
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Nancy Costello
Grantham, US
★★★★★ 5
Good deal
Format: Paperback
This book is in fine shape. Like new
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Reviewed in the United States on May 10, 2026

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