Amarna Sun Amplifier

SUBLIME SOUND

Class A @ 24V

Triple Output devices (new Sanken)

Tube (E88CC) and Jfet Input buffer

Transformer splitter

SECOND VERSION

here is how it evolves the design of an amplifier which has the same architecture as the stage voltage and the current too

in order to correct the output signal is necessary to have the return phase inverted

high performance semiconductor devices possess wonderful sonic attributes, including:

• Realistic reproduction of acoustic space and ambience (when present in the recording);
• True timbre, “body” and three-dimensionality of acoustic instruments and voices;
• Sensation of pace and inner dynamics;
• “Fluid” or “liquid” subjective sound quality (The sound is seductive, and it just gets better as you consume more of the “liquid”) -- this is especially manifest in the quality of the upper midrange and high registers characterized by the absence of: harshness in female voices, graininess in massed strings, and “etched” overemphasis of detail in cymbals;
• Sonorous but controlled pitch definition in the bass (which also imparts weight to the lowest registers).

this modern electronic architecture has access to a vast array of high sound performance with low Negative feedback and fine Complementarity

THE EVOLUTION (Amarna Optimum):

Amarna Optimum

Sziklai connection with Wilson current mirror

What is a CFP?

In essence, a high gain super transistor, somewhat similar to a Darlington. But there are major differences.

Unlike Darlingtons, there is some voltage gain with CFP.

Another unique feature is local feedback, so there is an "hide gain" inside gain one outside.

Why is it not as popular as EF?

Basically, more difficult to design then EF. When local feedback is nested in a global feedback, an amplifier is more prone to instability.

In other words, it is easier to break out into high frequency oscillations. But a well designed CFP Output Stage can often be outstanding.

Performance Factor

This is where it probably makes a real difference. With listening tests, the Sziklai Outputs are the most enjoyable of the three designs.

It sounds faster and the highs are smoother. This is probably due to a wider bandwidth and faster rise time.

All these are achieved without compromising bass slam and definition.

Wilson current mirror instead driver resistor load can solve instability problems because try to equalize the currents

reducing the hidden gain

Universal Power Buffer

For headphone or hybrid voltage stage as tube or raiser transformer