Pathos Kratos Integrated Amplifier

Pathos Kratos Integrated Amplifier

THE PROJECT

Kratos' name directly comes from its most important feature: power. In Greek mythology, indeed, Kratos was the god of strength, might and power.

Kratos is based on Pathos’ hybrid circuit, with tubes pre-stage and Mosfet final stage; it has 200W for each channel.
But that’s not all. Kratos’ pre-stage and final stage are clearly separated, with a prestigious pre-out and direct input to final stage; both pre-out and final stages are balanced XLR .

Its preamplification circuit is in pure class A; it uses Tung-Sol ECC803s tubes: sound is warm, deep, dynamic.

Final Mosfet stage in class AB is strongly polarized in class A; its great power both at 8 and 4 Ohms makes Kratos able to drive any loudspeaker.
Kratos is also headphone amplifier with a dedicated circuitry (2 W @ 32 Ω).

Design is inspired by Logos, the great Pathos’ historic product. But this is a simple aesthetic affinity: similarities stops here. Kratos hides new technical solutions which make it the leading-edge-product between non-InPol amplifiers.

Kratos’ basic features (5 RCA, 2 balanced XLR, digital display, remote-controlled functions) could be improved by a DAC (optional) and a RIAA phono input (optional).

Technical Specifications

Type Hybrid stereo amplifier, fully balanced. Preamplifier stage: tubes, class A, 2 x TungSol ECC803S 
Final stage: Mosfet, bridge configuration, class AB
Output Power  2 x 200WRMS @ 8 Ω, 2 x 350WRMS @ 4 Ω 
Max input voltage  5V RMS 
Input sensitivity  0,7VRMS 
Input impedance  47K 
Pre out gain  6dB 
Gain  36dB 
Connections
Analogue inputs 2 balanced XRL line, 5 unbalanced RCA line, 1 balanced XRL direct to the power amp
Optional inputs  HiDac Mk2
Phono stage RIAA for MM/MC 
Outputs  1 Pre out stereo unbalanced RCA, 1 Pre out stereo Balanced XLR 
Headphone Specifications
Output power 3,3 W @ 16 Ω , 2 W @ 32 Ω 
MAx output level  10V RMS 
Dimensions
Amplifier  430mm (D) x 530mm (W) x 195mm (H) 
Weight (net / packed) 40Kg