Aries Cerat · Power Amplifiers
Concero 65 LE
A pure single-ended triode monoblock utilising an uncompromising 813-driving-813 architecture.
Single-ended triode amplification often forces the listener to choose between absolute tonal purity and realistic dynamic scale. The Aries Cerat Concero 65 Limited Edition refuses this compromise, standing as the supreme expression of the Concero series. Drawing its architecture directly from the flagship Legend Series Achilleas, it leverages the exceptional linearity of the 813 transmission tube across both its driver and output stages.
To support this unyielding topology, the Limited Edition spans two massive stacked chassis per channel, providing absolute mechanical and electrical isolation. The driver stage power supply is purely tube-rectified using high-current damper tubes, while proprietary film SuperCapacitors provide a staggering 3,000 joules of instantaneous energy storage. Furthermore, the power supplies are inductively isolated from the signal path using custom-designed inductors, driving the noise floor to a virtually unmeasurable depth.
Sonically, the Concero 65 Limited Edition pairs the liquid midrange and holographic spatial presentation of the finest SET designs with fearsome bass control. It resolves the most fragile micro-details with remarkable transparency whilst delivering massive dynamic swings with startling speed. It is an amplifier built for absolute musical truth, providing a deeply emotional and visceral connection to the recording.
Key Features
01
813 Driving 813 Topology
Uses a parallel pair of RCA 813 tubes in the output stage driven by a third 813 tube. This ‘one type’ tube cascade allows for sophisticated harmonic distortion cancelling.
02
Tube-Rectified Driver Supply
The independent power supply unit for the driver stage is tube-rectified using a pair of high-current damper tubes, ensuring highly linear and organic power delivery.
03
Inductively Isolated Filaments
The power supply units are isolated from the critical audio signal path using specially designed inductors, resulting in an exceptionally quiet background.
04
SuperCapacitor Energy Storage
Proprietary film capacitors provide 3,000 joules of energy storage with an equivalent series resistance one hundred times lower than standard electrolytic designs.
05
On-The-Fly Biasing
Custom bias circuits paired with built-in digital monitors allow users to adjust the bias for both driver and output tubes seamlessly while music is playing.
Chapter 01
The 813 Breakthrough
The defining characteristic of the Concero 65 Limited Edition is its unique tube complement. While the Reference and Signature models use an 814 pentode to drive the output stage, the Limited Edition deploys an 813 transmission tube to drive a parallel pair of 813s. This deliberate ‘one-type’ tube configuration allows for sophisticated harmonic distortion cancelling. Because the cascade of stages shares identical transfer curves, the amplifier achieves unprecedented linearity and absolute fidelity to the original signal.
Chapter 02
Uncompromising Power Architecture
In an amplifier of this pedigree, power delivery dictates the final performance. The Limited Edition utilises a colossal 1,800VA transformer and independent power supplies for every single stage. The driver stage features pure tube rectification via high-current damper diodes, while energy storage is handled by proprietary film SuperCapacitors. These capacitors possess an equivalent series resistance a hundred times lower than standard electrolytics, enabling immense, instantaneous current surges when the music demands it.
Chapter 03
Sonic Signature
The Concero 65 Limited Edition redefines what a single-ended triode amplifier can achieve. It presents music with immense emotional weight and a remarkably dense, physical texture, rendering vocals and acoustic instruments with breathtaking realism.
Yet, with 65 watts of pure Class A power and massive energy reserves, it wields absolute authority over the lowest registers. It ensures that complex bass passages are reproduced with rock-solid impact and precise decay, resulting in the ultimate synthesis of timbral grace and monumental dynamic power.
Specifications
Output power65W
Gainx3 (9.5db)
Noise floor<105db (Ref) un-weighted
Tube list3 x 813 (per channel)
Distortion-75db H2 @ 1W, -55db H2 @ 10W
Signal bandwidth8Hz-110KHz @ 80% max power
Energy storage3000j
Power supply1,800VA power transformer
CapacitorsSuperCapacitors used for output and driver power supply (1mohm ESR capacitors)
Power consumption500W per channel
Dimensions (H × W × D)560 × 510 × 590 mm (2 chassis stacked)
Weight165kg per channel
InputsRCA, AC link proprietary input
Output impedanceUser selectable (impedance matching system) 1.6ohm (8ohm setting), 0.8ohm (4ohm), 0.4ohm (2ohm setting)
Tube BiasAdjustable bias on the fly
User readoutsOutput and driver online monitors
CapacitorsNo capacitors in the signal path. SuperCapacitors used for output and driver power supply (1mohm ESR capacitors)