Ianus Series Ageto

Developed alongside the Ianus Geminea and Ianus Essentia Triode Fet power amplifiers, we can present the groundbreaking Ianus Ageto preamplifier. Further developing our Gen 1 Inverted Triode technology, we felt the Ianus Series deserved a rediscovering of the Inverted Triode possibilities and technology. For this purpose, we developed our Gen 3 Inverted Triode , to be used on this very special preamplifier.

  • The Ageto is powered by a true dual mono external power supply. Each channel is powered by it’s individual power transformer and 8 independent choke filtered power supplies for each circuit of the Ageto. Multiple low and high frequencies inductors and careful layout provide extremely low noise supplies.

    Each channel is fed by it’s individual PSU through it’s own high gauge umbilical cords. The Inverted Triode is a unique active element, widely different to any kind of vacuum tube used in audio and tube electronics in general. Three electrodes , a cathode, grid and plate, are combined to give an amplification device completely different in operation than the classic vacuum tube. Inside a typical vacuum tube, an electron stream emitted from a heated cathode ,is accelerated toward a positively charged anode, which has a flat plate structure.

    The electron flow is impeded by the grid, a negatively charged wire-grid structure, placed between the cathode and anode. This operation resembles a typical fluid control valve, hence the name valve tube. Inside an Inverted Triode tube the electron stream emitted from a heated cathode is accelerated towards the anode, now a wire-grid-like structure . The electron flow is now unimpeded since no grid structure exists between the anode and cathode.

  • Technology:

    Gen 3 and Gen 1 Inverted Triode technology
    (can use new Gen 3 technology or previous Gen 1 technology)

    Number Gain Stages:

    Two

    Tubes used:

    1 x E280F(driver), 1 X Gen 3 IT (or Gen 1), per channel

    Volume:

    Transformer volume control 26 steps

    Channel Balance:

    Balanced left/right function

    HT:

    HT bypass ready

    AC Link:

    Aries Cerat HT Link ready

    Input impedance:

    7kΩ <100Hz

    Output impedance:

    12ohm

    Signal bandwidth:

    5Hz ~ 300Khz

    Maximum voltage output:

    2Vrms (low gain), 4V rms(medium gain)

    Maximum gain:

    3db (low gain version), 9db (medium gain version)

    Noise floor:

    <-120db unweighted

    Inputs:

    4 x RCA, 1 x true balanced XLR

    Dimensions:

    550mm W x 430mm D x 165cm H

    Weight:

    70kg (per chassis) 140kg total

  • Ianus Ageto