Zesto Audio Andros II Phonostage

The Andros II comes with Zesto's new ESP power supply which is available as an upgrade for the Andros 1.2

WHAT IS THE ESP (ENERGY SOURCE POWER) SUPPLY?
Zesto named it the ESP Supply because it anticipates the energy needs of the music. The new ESP Supply unlocks the true potential of the circuit, so it is at ease and doesn’t have to work as hard.

It allows more music to flow through with more detail. It also creates a more dynamic presentation, the quiet passages are quieter and louder passages have more punch.

The sound quality is an improvement throughout the frequency spectrum, so you have better clarity on the bass, midrange, and highs.

Here are the top 8 improvements:

The transformer changes from an IE to a Toroid design, which generates significantly less noise because it does a better job of concentrating the magnetic field
The high voltage increases by 17% from 250 V to 300 V which provides more headroom
Dynamic range is increased from 2 dBV to 11 dBV, so the quietest parts are quieter and the louder parts are louder
The ESP Supply is designed with bigger, fewer and heftier parts, which delivers more power with improved reliability
The rugged design of the ESP Supply makes it more resilient to power surges.
Both the high and low voltage supplies provide more current, so it’s less restrictive to deliver more music
Maximum output level before clipping is increased up to 3 V RMS, depending on the unit to allow more punch
In the Phonostages, the noise level is 5 dBV quieter, which increases the black levels considerably

Zesto Audio - Andros II Phonostage