Trilogy Audio
Nic's designs can also be found in runway lighting systems, guiding aircraft safely to land at major airports across the UK. His success in the exacting industry of aviation is further confirmation of his breadth and versatility as a designer.
After studying in depth the inherent weaknesses in most mains derived power supplies, and their surprising impact on sound quality, Nic founded Isotek and revolutionised the concept of mains conditioning. Now the creative force behind Isol-8 Teknologies, he has delivered award winning designs which display none of the negative qualities shown by previous generations of mains conditioners. His products have taken the audio community by storm and are sold to discerning users worldwide.
His design philosophy is the key to understanding all Trilogy products.
Trilogy 925 Integrated Amplifier
The Trilogy 925 integrated amplifier has strength in depth that will satisfy the most demanding audiophiles. It takes the integrated concept a significant step forward to deliver an involving musical performance that is truly memorable. At the heart of the 925 you will find many of Trilogy’s award winning technologies. The balanced input stage uses the 6H6П super tube to provide pure triode Class A, zero feedback voltage gain of exceptional linearity. The output stage has our unique zero feedback MOSFET and bipolar topology in a bridge configuration for 135w of power with impressive control. The amplifier is fully symmetrical inside and out. Unlike many other amplifiers claiming to be balanced, the signal positive and signal negative are never tied to ground in the 925. A powerful and fully customisable input management system also interfaces with the outside world and other Trilogy products via TASlink.
Trilogy 921 Integrated Amplifier
A tough design challenge was to give our “entry level” solid state amplifier the fluidity and sheer musical involvement that typically only valve amplifiers enjoy. But in the Trilogy fashion of going against the flow. Rather than design the 921 as a pre amplifier and a separate power amplifier in one chassis, we chose a single, ultra linear gain stage that does all the voltage gain necessary. This is then directly connected to a compound output stage reminiscent of our larger power amplifiers, enjoying the same Japanese bipolar devices. This topology has extremely high bandwidth, low distortion and very good loudspeaker control with only a tiny amount of overall shunt feedback. The rectification and smoothing capacitor bank are on each left and right amplifier module and a separate winding on the mains transformer feeds these independently. The perfect harmony of pre and power amplifier resolved into one chassis without compromise. Elegant form and function you’d expect from Trilogy.
The 915R preamplifier is Trilogy’s superlative statement pre amplifier, a culmination of decades of design knowledge and a no compromise brief. The sonic character of this design being as close to the live source in performance, has been realised. Boldness and subtlety are delivered with equal aplomb.
Openness, balance and agility produced with this preamp make music tangible, the listener is not left lacking feeling a nuance has been lost. Lithe sonic landscapes imbued with just the correct scale and perfect imaging.
This is a preamplifier that anticipates all the users requirements. The inputs can be named individually, and channel balance configured to suit. Dig deeper into the menu and you will find the display of valves’ work hours or temperature read of connected Trilogy amps, real-time bar graph instead of volume level, days of week and the ability to schedule on and off times to everything connected via TASlink.
The audio circuit of the 914 preamplifier benefits from Nic Poulson’s years of experience in audio design, his pursuit of transparency and true fidelity leads to an elegant solution that reflects the passion of the designer. A truly versatile fully balanced pre amplifier from input to output. Six inputs, three of them balanced, and three RCA are provided.
Once again, using our favourite high transconductance 6H6П super tube to articulately voice all gain duties. Six in all feature in this products circuit. Three separate transformers one for ancillary control electronics, one for the valve’s heaters and one for the high tension supplies minimise interaction and maximise musical return.
The 914 is of rare quality, it offers both supreme flexibility and peerless construction. Above all, it is the sublime musical performance that will convince you of its rightful place; at the very heart of your system.
The Trilogy 903 combines peerless sound quality with impressive control flexibility. The optional integral phono stage makes this all the preamplifier you could ever need. The audio circuit benefits from Nic Poulson's years of experience in audio design, his pursuit of transparency and true fidelity leads to an elegant solution that reflects the passion of the designer.
The control menu is accessed intuitively using the rotary encoder plus enter and escape buttons. The hierarchy is carefully designed to put all the commonly needed commands close to hand. Display brightness, customised labels and gain trims for each input, film mode, security bonding, sleep countdown, timed system switch on via TAS link, and remote operation are amongst the many configurable options available to personalise your 903 the way you want it.
The gain stage uses the 6H6П super tube for all voltage gain. This Russian military triode has high transconductance and low mu for exceptional performance at audio frequencies. The grounded grid configuration allows the tube to operate in pure Class A with the highest linearity and the lowest distortion. The output impedance is low for excellent drive capability.
For the Full range of Trilogy Audio products including Headphone amplifiers, Pre/Power amplifiers and phonostages please visit https://www.trilogyaudio.com/
