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קריאה נעימה
Introducing the Ianus hybrid monoblock amplifiers.
Our latest and best efford,to built the best sounding solid state amplifier .Having settled with a true novel design,we believe that the Ianus amplifers maybe the best solid state amplifiers,which are in practice,a hollow state amplifier.
3 Pillars of Audio Novelty
1.The active components used in the output stage, is something completely unique in the audio industry and not only.
The Technology used, is a blend of hollow state and solid state. This is not another tube-driving-transistor topology. The tube , mosfet along with special circuitry, are combined to form a new component, the Triode-fet.
The active component does behave like a tube ,in aspects of linearity ,presence of internal resistance, yet at the same time having mosfet-like current capabilities.
The curves of the Triofe-fet components, resemble that of a true triode, but with transistor-scale current capabilities.
Next and below,are current transfer curves of a typical mosfet used in high fidelity audio amplifiers, compared our Triode-fet circuits used in the Ianus amplifier.
2.The topology used in the Ianus mono-blocks are of unique design. The topology belongs to the Circlotron-esque family, but vastly improved, in terms of distortion, output impedance and reliability.
The topology is a Super-Symmetric Self Balancing inductively driven Circlotron. Zero feedback loops are used, either local or global.
Input stage
The input stage consists of a transformer loaded E280F super-tube, and provides a true balanced signal to the output stage.
The transformer that is used to load the Siemens E280F,is of highest quality, and is specially winded to provide perfect balanced signal, without and phase-shift between the inverted and non-inverted signal, which is usually present in other methods of converting unbalanced signal to true balanced signal.
3.The Ianus amplifiers may be the only Class A which does operate in strict Class A region for the entire power range, even in 4ohms loads.
Almost every other Class A amplifier on the market ,in the >100W region does only deliver 20-40W or Class A power,and half of that in 4 ohm loads. Most of the market’s top shelf “Class A” amplifiers are biased at 1-3Amperes max, delivering 4-36W at 8ohms and 2-18ohms of true Class A power.
The Ianus output stage is biased at 10Amperes per channel, so it does never leave the Class A region, whatever the power output level,in 8 or 4 ohms load
Power supplies
The monoblock amplifiers are built around four complete separate floating power supplies.40 high current ,high capacitance capacitors are used, and each bank is choke regulated, using four massive chokes. Each choke can withstand over 5 Amperes of Dc current, which dictates the use of very large cores. Size wise, each of the chokes compares to 1KV power transformers used by competitors.
The Pi filter used for noise reduction and energy storage, is carefully tuned to form a complete sonic black background, at the same time providing lighting fast energy storage for the output stage.
The Tube input circuits use their own separate choke regulated power supplies.
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