Sati Amplifiers

The Horning Sati Statement 300B Delphi represents a revolutionary leap in single-ended triode amplifier design, offering audiophiles an unparalleled listening experience. This masterpiece is the culmination of decades of research and development in tube amplification technology.

The Journey to Audio Excellence
25 years ago, when semiconductors dominated the hi-fi scene, our passion for tube amplification was ignited by a locally-built single-ended amplifier. This experience set us on a quest to create the ultimate tube amplifier, focusing on the critical component of output transformers.

Innovative Transformer Technology

Toroidal Revolution
While most manufacturers used EI or C-type transformers, we pioneered the use of toroidal transformers in single-ended amplifiers. Collaborating with a Danish transformer factory, we developed samples using grain-oriented iron, achieving superior sound compared to well-known high-end C and double C core transformers.

Nanocrystalline Breakthrough
The real game-changer came with the introduction of nanocrystalline cut cores. Utilizing ultra-high-end cores from manufacturers like VAC, Fine-met, and Hitachi, we achieved:
• Exceptional electrical performance
• Extremely fast response
• Stable phase response
• Rock-solid soundstage
The combination of toroidal design and carefully wound copper wire resulted in a transformer superior to any double C-wound alternative.

Key Components
Output Transformer
The heart of the Sati Statement 300B Delphi is its nanocrystalline toroidal output transformer, meticulously optimized for the 300B tube. This transformer delivers a level of performance that sets a new standard in the industry.

Interstage Transformer
The SATI toroidal concept extends to the interstage transformer, creating ideal conditions for the 5842 tube to deliver its signal to the 300B tube’s grid.

Volume Control
Inspired by Peter Treuerniet’s acclaimed Tribute design, the Sati uses a nanocrystalline auto-transformer for volume control. This approach eliminates the need for resistors in the signal path, resulting in:
• Superior dynamics
• Improved linearity across the volume range
• Enhanced performance at lower volumes
• Preservation of tonal richness and body

Grid Circuit
Instead of a traditional grid resistor, the Sati employs a nanocrystalline transformer coil. This innovative approach:
• Acts as a 100K ohm resistor with only 90 ohms DC resistance
• Provides a linear frequency range from 9 Hz to 200,000 Hz
• Preserves signal integrity and tonal richness

Power Supply Excellence
The Sati Statement 300B Delphi features a state-of-the-art power supply design:
• Nanocrystalline input choke for superior ripple regulation
• Bridge tube rectifier for improved capacity factor and peak inverse performance
• High-quality capacitors throughout
• Shunt regulator with glow tube for precise 150V anode tension to the 5842 driver tube

Heater Supply Innovation
The amplifier utilizes a low-frequency AC heater supply, designed by Tommy Vangsy, which offers several advantages over DC heater supplies:
• Avoids the brightness and thinness often associated with DC heaters
• Extends 300B tube lifespan
• Enhances body, dynamics, and overall faithfulness to the source material

The Sati Statement 300B Delphi Experience
This amplifier is not merely an evolution of single-ended amplifier design; it’s a revolution. By combining cutting-edge nanocrystalline technology, innovative circuit design, and meticulous component selection, the Sati Statement 300B Delphi delivers:
• Unparalleled tonal purity
• Exceptional dynamics and detail retrieval
• Holographic soundstage
• Emotional connection to the music
The Horning Sati Statement 300B Delphi integrated SE amplifier represents the pinnacle of tube amplification technology, offering discerning audiophiles a listening experience that must be heard to be believed. It’s not just an amplifier; it’s a gateway to musical nirvana.