HerosClass A Hybrid - Tube/FET Amplifier
Yet when done correctly the result speaks for itself.
Features
Tube amplifier architecture with the simplest signal path
Transformer coupled input and output
JFET/MOSFET cascode output devices
Silicon Carbide diodes in power supply
Microprocessor control
Selectable gain
Selectable speaker impedance
Audiophile 5687wa tube used
Fully balanced differential operation
Both RCA and XLR inputs
Compact chassis built like a tank
100W Class A power output
Based on a push-pull output stage but modified with our design concepts and experience it features a tube input stage providing the necessary voltage amplification.
Followed by transformer loaded cascoded JFET/MOSFET output stage instead of the usual tube handling current gain much better.
Almost double the efficiency of a normal Solid State Class A design, no DC on output and many other benefits are taken advantage of in our implementation.
A fully differential architecture using an input phase splitting transformer and summing back at the push-pull output transformer. This solution completely floats the inside of the amplifier isolating it from any external influences.
The design being fully differential is immune to power supply noise.
The power supply for the output stage uses a new breed of rectifier diodes made from a new material called Silicon Carbide. They have no reverse current and switching losses.
When properly applied the rectifier produces no EMI/RFI in the chassis. The result is an amplifier free of grain and fizziness, giving new meaning to transparency and tone.
We use the well-known 5687WA audiophile tube and the highest grade audio transformers. Operating all devices in class 'A' produces a fair amount of heat, so the whole chassis is a heat sink. It is the most compact 100-watt class A solid state amplifier available. The chassis is designed to cope with the heat produced by the components and provide a vibration-free structure to house the components. All the electronics are enclosed in separate compartments to avoid interference between components.
Blending this with stylish aesthetics produced a beautiful sculpture - To be known as Heros.
Almost double the efficiency of a normal Solid State Class A design, no DC on output and many other benefits are taken advantage of in our implementation.
A fully differential architecture using an input phase splitting transformer and summing back at the push-pull output transformer. This solution completely floats the inside of the amplifier isolating it from any external influences.
The design being fully differential is immune to power supply noise.
The power supply for the output stage uses a new breed of rectifier diodes made from a new material called Silicon Carbide. They have no reverse current and switching losses.
When properly applied the rectifier produces no EMI/RFI in the chassis. The result is an amplifier free of grain and fizziness, giving new meaning to transparency and tone.
We use the well-known 5687WA audiophile tube and the highest grade audio transformers. Operating all devices in class 'A' produces a fair amount of heat, so the whole chassis is a heat sink. It is the most compact 100-watt class A solid state amplifier available. The chassis is designed to cope with the heat produced by the components and provide a vibration-free structure to house the components. All the electronics are enclosed in separate compartments to avoid interference between components.
Blending this with stylish aesthetics produced a beautiful sculpture - To be known as Heros.
Technical Specifications
Inputs
1 unbalanced RCA connector
1 balanced XLR connector Output Power 100W in 4Ω/8Ω Power supply 115 or 230V Power consumption 230W Weight 30 Kg Dimensions 210W x 400D x 230H mm Tube compliment 1x 5687 amplification
1 balanced XLR connector Output Power 100W in 4Ω/8Ω Power supply 115 or 230V Power consumption 230W Weight 30 Kg Dimensions 210W x 400D x 230H mm Tube compliment 1x 5687 amplification
Available Finishes 
Silver Anodized Aluminum 
Black Anodized Aluminum
Silver Anodized Aluminum Black Anodized Aluminum
Products 
MaximinusDSP controlled 32bit/384kHz audio DAC 
OrpheusPhono Preamplifier with LCR RIAA equalizer 
DionysosControl Amplifier with remote 
SpartacusClass A Mono Power Amplifier 
TeresTransformer coupled hybrid Power Amplifier 
HerosClass A Hybrid - tube/fet amplifier
Spartacus 300Pure 300B Power Amplifier 
EnyoModular Audiophile System 
AresModular Audiophile System
Lyra2-Way Stand Mount Loudspeaker
BasusMotional Feedback Bass System
Made To Fit Together Perfectly MaximinusDSP controlled 32bit/384kHz audio DAC OrpheusPhono Preamplifier with LCR RIAA equalizer DionysosControl Amplifier with remote SpartacusClass A Mono Power Amplifier TeresTransformer coupled hybrid Power Amplifier HerosClass A Hybrid - tube/fet amplifierSpartacus 300Pure 300B Power Amplifier EnyoModular Audiophile System AresModular Audiophile System
Lyra2-Way Stand Mount Loudspeaker
BasusMotional Feedback Bass System
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