AV Lounge

High Fidelity Audio

I
Aries CeratImage · Coming Soon

Aries Cerat · Impera

Impera Signature

A two-chassis inverted triode preamplifier redefining the limits of audio engineering.

At the heart of the Impera Signature lies Aries Cerat's Generation 2 Inverted Triode technology. Unlike conventional vacuum tubes where the electron flow is impeded by a grid, this proprietary circuit accelerates electrons towards a wire-grid anode while an enveloping plate structure shadows the electrical field. This radical configuration allows the active element to function as a virtual vacuum state transformer, achieving a fractional unity gain with zero input capacitance and a staggering bandwidth of 2Hz to 500kHz. Standing as the brand's grand statement, the Signature iteration shares almost no internal components with the standard Reference model. It demands a dedicated, full-sized second chassis exclusively for power management. Inside this enclosure, a massive 500VA encased transformer feeds ten completely independent, mirrored power supplies. These meticulously filtered and stabilised supplies deliver power to the main signal chassis via double umbilical cords, ensuring absolute magnetic and electromagnetic isolation. Sonically, the Impera Signature presents a completely new paradigm in audio reproduction. The redesigned nano-crystalline output transformers and upgraded signal chokes yield an exceptionally silent background alongside astonishing dynamic headroom. It reproduces the lowest frequencies with immense weight and authoritative control, while the midrange and high frequencies flow with a crystal-clear, holographic presence that removes the electronics from the acoustic space.

Key Features

01

Gen 2 Inverted Triode Technology

Features a redesigned stacked and folded driving stage that significantly improves bandwidth, transient response, and stability over previous generations.

02

Dedicated 10-PSU Chassis

A full-sized external chassis houses a 500VA transformer and ten independent, perfectly stabilised power supplies connected via double umbilical cords.

03

Nano-Crystalline Transformers

The bespoke output transformers have been entirely redesigned utilising advanced nano-crystalline cores and proprietary winding technology.

04

Transformer Volume Control

Attenuation is governed purely by magnetics using a multi-tap input transformer with perfectly tuned secondary loads, avoiding resistive degradation.

05

Upgraded Inductive Coupling

Utilises high-grade signal chokes that present half the parasitic capacitance of previous inductors for absolute signal purity and speed.

Chapter 01

The Grand Statement

Aries Cerat developed the Impera Signature to push the theoretical boundaries of the preamplifier. Though it shares the Impera name, it retains almost no common parts with the Reference design. Every element has been scaled up, from the massively overbuilt external power supply to the triple-filtered heater supplies and the use of ultra-high-speed, low ESR capacitors throughout the driver and bias stages.

Chapter 02

Generation 2 Architecture

The second generation of the Inverted Triode technology introduces a completely rethought approach to tube biasing and driving. By moving the operating point to previously unusable regions, the designers lowered grid consumption, which extends tube life while simultaneously doubling the bandwidth and drastically reducing noise and distortion figures.

Chapter 03

Sonic Signature

Listeners note that the Impera Signature provides an unparalleled level of transparency. The extreme reduction in noise and mechanical interference allows delicate micro-dynamics and spatial cues to emerge effortlessly. It balances the liquid, organic flow of the finest triode designs with a physical grip and commanding bass authority that solid-state equipment struggles to equal, rendering a completely immersive musical event.

Specifications

TypeTwo-chassis Inverted Triode preamplifier
Maximum gainx5 (14dB) high gain version, x2.5 (8dB) medium gain version
Output stage bandwidth2Hz to 500kHz
Attenuation methodMulti-tap input transformer
Power supplyFull sized chassis, 10 independent PSU, 500VA
Inputs4x unbalanced, 1x true balanced
OutputsRCA, AC link, XLR (on demand), 10Vrms (high gain version)
Weight110 kg (unpacked total weight)