Trilogy 915R
Preamplifier
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.
The control menu is accessible through a highly intuitive rotary encoder, this facilitates all the common functions being readily available with thoughtful implementation communicated through a large red LED dot matrix display. 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 enable you to make the 915R a bespoke experience - an interface that is a joy to use. An optional security PIN code can be entered at start up which in the event of theft would render the unit unusable.
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 gain stage uses the 6H6P super tube mounted in a billet compartment for the voltage gain, this tube performs exceptionally well in audio applications and its associated frequencies with true high fidelity and low distortion. A series of three transformers feed the power supply, the design actively shunt regulates the valves high voltage supply. The voltage rails ability to both sink and source current allows it to be both stable and quiet. Output is provided by the renowned Lundahl transformers.
It’s apex level topology is only equalled by the attention to its casing and detailing machined from billet alloy with the attention of a purist. The philosophy of utilising the optimum technology to solve a problem is the Trilogy ethos, encapsulated in the 915R preamplifier.
The preamp is supplied as standard with the stunning billet PRC remote, and a quality ISOL-8 IsoLink Wave power cord.
The 915R features a comprehensive range of inputs and outputs ; TASlink RJ45 socketry on the far right and a number of connections by Cardas (RCA) and Neutrik (XLR) in-between. There are six inputs (3x RCA, 3x XLR), four outputs (2x RCA, 2x XLR) and one RCA send (record) out in total. One of SE inputs can be also used as a return channel.
READ Hifidelity Poland’s Review HERE
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Trilogy 914
Preamplifier
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. There is one balanced and one RCA output per channel. Signal switching in the 914 is handled by no less than 28 sputtered ruthenium Pickering relays.
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 importance of shunt regulated power supplies cannot be overstated and ensures the voltage rail remains silent, since the regulator can sink and source current as dictated by the audio circuit. The 914 boasts no fewer than four such supplies.
Once again the convenience of Trilogy firmware makes the 914 a joy to use, and encourages the owner to dig deeper into the settings. 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 TASlink, and remote operation are amongst the many configurable options available to make the 914 truly yours.
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.
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Specifications
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| Size | 465*370*115(W*D*H) |
| Weight | 12.4 Kg |
| Maximum Power consumption | 55 Watts |
| Inputs (balanced) | 3 pairs XLR 3 pin female |
| Inputs (single ended) | 3 pairs RCA phono sockets |
| Input Impedance (balanced) | >48K Ohms |
| Input Impedance (single ended) | >24K Ohms | Main Outputs (balanced) | 1 pair XLR 3 pin male |
| Main Outputs | 1 pair RCA phono sockets |
| Send (Tape) Outputs | 1 pair RCA phono sockets |
| Output impedance (Main) | 400R |
| Frequency response | 10-150KHz +/- 0.5dB |
| Gain (Inputs to Send output) | 0dB |
| Gain (Inputs to Main output) | 24dB |
| Phase | Phase correct (non inverting) |
| Specification subject to change | |
Trilogy 903
Preamplifier
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.
Three transformers feed the power supplies. The valve’s high voltage supply is actively shunt regulated. This topology ensures that the regulator can sink as well as source current, a vital detail that enables the voltage rail to remain quiet and stable under all conditions, a vital requirement for high resolution audio.
The optional phono stage is no marketing afterthought. It has much in common with the acclaimed 907, being a Class A design with passive RIAA EQ. The active circuit is fully discrete, the on board shunt regulators have their own power supply for maximum fidelity. Gain for either moving magnet or moving coil, cartridge resistance and capacitance loading, are all adjustable from the menu hierarchy via local or remote control via infrared handset or our powerful TAS link interface.
The 903 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 music making.
