Ianus Ageto Preamplifier
Our Inverted Triode technology, going back 13 years since early inception and prototypes , was mature enough to evolve to to new realms of performance. The new Gen 3 technology not only sports a new Inverted triode tube, but also redesign of the circuits used and driving configuration.
The main chassis , carrying all audio (non power) signal transformers benefits from completely separating the power supplies to different chassis. By isolating the power transformers, the very elaborate choke filter network and very high energy banks from the delicate signal transformers, achieves a noise floor unattainable by any tube pre-amplifier, and is a class on it’s own in terms of noise level, setting it self apart from other designs using signal transformers.
Signal transformers, such as output, TVC,and inter-stage transformers, are sensitive receivers to any EMI and magnetic noise. The >120db noise floor of the Ageto is unmatched, even by tube equipment that do not use any transformers in the signal chain.

Technical Specifications
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 |

Hi-End Audio / NOS parts / Valve Amplifiers / Valve R-2R DAC / Made to Order
If you are looking for Modern iteration of vintage technology, Aries Cerat is the ultimate brand.
As a hardcore new-old-stock (NOS) and vintage valve collector, Aries Cerat had created modern valve amplifier with touches of vintage elegance.