Trilogy 995R Mono
Power Amplifier
The 995R is Trilogy Audio Systems much anticipated mono power amplifiers, finally brought to fruition after four years of research. Dedication that is evident in all Trilogy family products.
Truly monolithic and architectural in form with details such as machined fins optimised to dissipate heat by clever design via massive radiation surfaces. The considered form is only equalled by its uncompromised internal design.
As many Trilogy products that harness the strengths of both worlds, the 995R is a hybrid machine. These units via a discrete selector button are able to be cycled through three modes, class AB, A and eco A. The last mode behaving as class A whilst when the music is playing, however transistor bias is significantly decreased to reduce power draw if there’s no signal present this is both stable and has the advantage of the minimum of performance sacrificed.
The unit measures (W x D x H) 190 x 460 x 350mm and weighs 38 kilograms which reflects its thorough design rationale. Class AB delivers 200W into 8Ω, Class A mode outputs 40W (usable 55W) with the same load. Frequency response is 5Hz – 100KHz (+/-0.5dB) and gain on SE/balanced inputs is respectively 31 and 25dB.
Trilogy 995R is not just beautiful on the surface. The circuit has no feedback, is fully balanced and also features a bridged output stage. Its hybrid topology involves two 6H6P valves as voltage amplifiers, whereas small linear MOSFETs on duty with 12 Japanese Bipolars form the product’s push-pull compound stage. The PSU based on a large shielded toroidal transformer and custom caps enjoys full choke input supply. Featured is Trilogy’s proprietary TASlink network which the owner may choose to utilise based RJ45 sockets allowing connected Trilogy products to communicate and extend functionality across the system, providing details such as run time, or scheduled operation features accessed via TASlink enabled Preamplifiers.
Once again Trilogy has made a product that defies aesthetic convention and made a compact mono power amplifier with truly arresting performance. Statement amplifiers from a true British Independent. Reviews have stated the 915R /995R Pre/Power combination to be the very best of their kind.
READ Hifidelity Poland’s Review HERE
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Trilogy 994 Mono
Power Amplifier
new product
A zero negative feedback hybrid design, the 994 embodies much of the attributes of our highly acclaimed 995R mono amplifiers but in a smaller and equally distinct sculpted form.
Offering the listener 140W into 8 Ohms and significantly more into lower impedances, the 994 is eminently capable.
Again using the 6H6П in a grounded grid configuration driving Trilogy’s unique generous compound output stage.
As with the 995R, the 994 offers the ability to be operated in Class AB, Class A or ecoA modes.
Of course, a massive choke input power supply as one would expect.
Yet another Trilogy statement piece of form and function from the mind of Nic Poulson - made reality.
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Specifications
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| Size | 190*365*312 (W*D*H) |
| Size including connectors | 190*400*312 (W*D*H) |
| Weight | 25 Kg per unit |
| Standby Power Consumption | < below 1 Watt |
| Maximum Power consumption | 600 Watts |
| Inputs (single ended) | 1 RCA phono socket |
| Input impedance | 200K Ohms |
| Gain (single ended) | 31dB |
| Input sensitivity (single ended) | 1.1V RMS for Rated output |
| Rated Power Class AB Mode | 140 Watts into 8 Ohms /200 Watts into 4 Ohms |
| Rated Class A power (Class A Mode) | 20 Watts into 8 Ohms |
| Actual usable power (Class A Mode) | 30 Watts into 8 Ohms / 55 Watts into 4 Ohms |
| Recommended load impedance | 2-16 Ohms |
| Frequency response | 2-100KHz +/- 0.5dB |
| Distortion | Less than 1% A weighted at rated output into 8 Ohms |
| Phase | Phase correct (non inverting) |
| Specification subject to change | |
Trilogy 993
Power Amplifier
Complementing the 903 Preamplifier. The best design choices can only be achieved by understanding all the options. Trilogy is in a unique position to do this; combining the best of both solid state and valve technology to produce a remarkable design that is capable of sublime musical subtlety and impressive power.
All the 993's voltage gain is provided by a 6H6П super tube. This Russian military triode has been selected for exceptional performance at audio frequencies, having both high transconductance and low mu. The valve operates in Class A in a grounded grid configuration with zero negative feedback for maximum fidelity.
Power supplies for the driver stage are fully discrete and shunt regulated for excellent transient response. Because of the output stage’s unique topology the valve has an easy load, seeing only a small MOSFET. This enables it to deliver the musical flow and micro detail that makes valves so special. The 993 takes the unusual step of specifying a choke input power supply for the output stage.
The choke is nearly as large as the power transformer and plays a crucial role in the amplifier's performance. The electrically noisy, high current spikes that are pulled from the mains in conventional supplies are avoided. The choke allows a much more linear current draw instead, keeping dynamic noise under drive much lower. Premium reservoir capacitors and soft recovery diodes complete the power supply. The first watt delivered by an amplifier is the most crucial. It is where the majority of tonal and spatial cues reside at normal listening levels. The 993's output stage uses a small and agile output FET to serve this region, giving superior performance where it has most impact. When current demand rises, higher power bipolar devices supply additional current to move the loudspeaker with up to 125 watts into 8 Ohms.
The amplifier has zero global negative feedback, but because of high bias it still exhibits a low output impedance. TAS link connectivity provides functions such as remote switch on, remote status monitoring through the system controller, and security bonding The 993 is unconventional only because every element of its design and construction has been driven by a passion to deliver performance that will captivate and delight the listener.
