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Talos Signature Phono System


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The Talos Signature is our latest creation ,dedicated to the world of analog reploduction.It refines and uses technology from the top Limited Edition model,as well as improved sections of the smaller Reference model.
Using proprietery tube circuits,transformer coupling throughout,multiple tube rectifed ultra-low noise PSUs, we successfully managed to create a unique source, which in our humble opinion is maybe the top analog source today,only surpassed by the Limited Edition phono.
With it’s 64db gain from the tube stages, with 12-26db added gain from the customised Step up tranformers,a total gain of 76-90db  is possible,with amazing high SNR ,there is enough headroom to amplify the signal of any cartridge to it’s full potential dynamic range.



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Input stage

The input stage is a proprietary differential tube stage and is descending from technology used in our top LE model.It uses two E280F supertubes per chanel,mounted on our special Vibration Isolation sockets.These tubes are loaded with a special transformer,(proprietery blend of MU/permalloy core) with a fully geometrically and electrically balanced windings.
The differential input stage is fed either directly from the cartridge in differential mode(from floating RCA or XLR inputs),either by our custom SUT transformers.Our SUT transformers are also winded using fully geometrically/electrically balanced windings,thus outputing a true balanced output,to fully take benefit of our differential tube input stage.
Amplifiying the extremely low level signal in differential mode has the benefit of cancelling out common mode noise,which is the electrical noise picked up anywhere from the cart body up to the inputs of the phono stage,tus giving very high SNR.The input stage is the most crucial stage for retrieving and preserving information from the cartridge.We took all steps necessary to provide the best noise cancelling, microphonic free, linear input stage possible.
RIAA Stage

The RIAA filters are implemented around an constant (low) impedance double-T LCR filters.These filters are the most transparent and dynamic filters possible,however being very low impedance,means that you cannot drive them with usual gain stages.We designed specially for driving this constand low impedance filter structure,a small SET amplifier.This small amp uses a E280F supertube loaded with a custom step down transformer.This small amp can drive anything down to 50ohm ,and it’s output impedance is tuned to work in combination with the LCR filters to provide accurate RIAA correction EQ.



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Output Stage

The output stage provides some of the total gain of  the phono system,and at same time provides low output impedance to drive any preamplifier load/capacitive cables etc.
It is also build like a small independent SE amplifier.Another E280F SET amplifier provides enough drive current and drive,by the use of a step down transformer.

Power Supplies

All power supplies are located on the second dedicated chassis,while local capacitor banks at the main chassis provide local decoupling.
The input stage PSU is tube rectified using the high current 6d22s damper diodes,and is quad filtered using chokes.
A second tube rectifier bank using another pair of 6d22s is responsible for powering the rest of the stages.All stages are independently doulbe filtered using chokes and high speed/current capacitors.A total of 10 chokes are used,with combination of the use of low ESR capacitors,provide six independent ultra low noise power rails for all three X 2 stages. All of the six independent power supplies have decoupled returing legs,only connected to the single star ground of the main unit.This designs along with the separation/filtration topology of the PSUs provide minimum power crosstalk between stages,which is extremely crucial in low signal amplification.
All eight tubes can be bias adjusted and monitored on the fly.Each of the two differential banks can be monitored and adjusted on the fly for accurate balanced operation as well as sonic finetuning using it’s two dedicated monitors.
The other four stages can also be adjusted and monitored using a dedicated monitor/meter/knob system that controls the four independed AC-link proprietary system of tube biasing.  
Tube heaters of  all eight tubes are DC filtered with a five-fold Pi-filter to provide complete noise free enviromnent for all tubes.



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Cartidge loading
The unit comes with no internal loading presets,as this would predefine and limit loading combinations.Loading is provided by loading modules,custom built for, at client’s request,depending on user’s cart portofilio.Loading modules can be used for both direct and SUT inputs.Loading modules can be any value requested,and user can load any input independently.



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Tube compliment: 8x E280F  4x 6d22s
Total system gain: 64db + 12~26 db (custom SUT for each cart) 76-90db max gain
Noise floor: -80db
Max SNR:106db
RIAA accuracy: +-0.2db
Inputs: 2x floating RCA/XLR differential inputs  (64db)
           1x Step up transformer input (+12~26db custom)
Max Output: 20Vrms @ 200ohm
Loading Resistance/capacitance: Unlimited combinations.(use of extenal custom built loading modules)

Weight: 85kg total

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Incito S Preamplifier






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When designing the Incito preamplifier our aim was to reference
a great Einstein quote “Make everything as simple as possible, but not simpler”
and to absorb and implement this into our current audio design mentality.
With the Incito S we took this quote but with a twist, “simpler but better”



Generally in audio designs simple circuits tend to work and most important sound much better. However in many cases, simple solutions come with shortcomings particularly in audio in the form of questionable measured performance.

The Incito S is a contrary statement to this ‘rule’. As with the Incito, in the heart of the Incito S preamplifier beats a zero feedback power gain stage which consists of a small SET amplifier and a transformer coupled super triode using the ultra high trans-conductance E280F. This superb tube, which is made primarily by Siemens(, is loaded with a highest quality step down transformer with reconfigurable secondary winding to support switchable gain.Switches on the back re-configure the secondary winding to switch between 20db and 14db of max gain.

This small SET amplifier can easily provide voltage swings of over 320V, stepped down to 80Vpp (or 40Vpp on the -6db configuration) while keeping transistor-like noise figures. The specially designed step down transformer provides very low output resistance and more than adequate current to drive any load down to 50 ohms! This required a robust and preferable a passively filtered power supply.

The power supply is built around the 5AR4 rectifier and uses separate double pi filtering for each channel with oversized chokes and high speed capacitors. The power transformer is encased in an external chassis, connected with a permanent umbilical cord. This design choice lead to improved noise floor figures of 20db, now well below the -110db mark.

For volume control we used the best-to-our-ears way of implementing a volume control apparatus… that is transformer volume control. The Incito S uses the same TVC and input system of our bigger preamplifier brothers such as the Impera II. To go even further we used the same AC link proprietary technology for the biasing of the small SET amplifier. The bias circuits are controlled and monitored by the use of a variable pot and a build-in meter which ensures bias tuning of the design is both easy and intuitive.

The Incito is already a great preamplifier and it was very hard to outperformed it with a design that could fit in the same chassis and keep the weight unchanged. The Incito S is our answer to that challenge and I believe we have succeeded.


Full swing signal bandwidth: -6db @ 4Hz~140kHz Harmonic distortion: 0.005% typical

Maximum signal output swing: 32Vrms @ 10kohm load -6db switch

(reconfigurable step down)   Gain: 20db/14db selectable

Maximum harmonic distortion: less than 0.1% THD at 20V rms)
Output impedance: 50ohm (12ohm in -6db mode) Weight: 34Kg unpacked


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