Pathos Kratos Tube Hybrid Integrated Amplifier
Pathos Kratos Tube Hybrid Integrated Amplifier
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Pathos Kratos Tube Hybrid Integrated Amplifier
“It’s hard not be drawn in by the Pathos Kratos. It’s powerful, yet can sound as refined and as elegant as any tiny valve amplifier. It’s warm, yet not soft and soggy sounding. It fills the room with sound, driving ‘difficult’ speakers with ease and making it more natural to drive loudspeakers to seem like they just got a bit bigger and more powerful.”
A class-A Tung-Sol ECC803 input stage meets a 200 Wpc MOSFET output stage
In Greek mythology, Kratos is the god of strength, might, and power. The Pathos Kratos is based on Pathos’ famous hybrid circuit featuring tubes in the preamp stage, and a MOSFET final stage, offering 200 W per channel.
The design electrically separates the pre and power stages, with the preamplification circuit working in in pure class-A. The Tung-Sol ECC803S tubes offer a warm, deep, dynamic sound. The final MOSFET stage in class AB is strongly polarized in class A, and drives any loudspeaker with power and grace.
Kratos is also headphone amplifier with dedicated circuitry (2 W @ 32 Ω). The amp can be upgraded with an optional DAC card.
In-House Manufacturing and Design
From the wood panel to the PCBs to the chassis, everything at Pathos is either manufactured in-house or sourced from the Vicenza area.
For example, to make the wood front panel, Pathos buys an entire padouk tree trunk, which is cut into planks in-house, and the final pieces are hand-polished by the son of the Pathos owner himself.
The panel may not contribute to the sound, but this approach says everything about the great sonics you do hear. Having control of the entire manufacturing process from start to finish means that the Pathos InPol2 is the very best amp it can possibly be at its price-point. These are the very best amps Kevin has heard, and it is Pathos that he has picked for his reference system at home.
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 200 W RMS @ 8 Ω, 2 x 350 W RMS @ 4 Ω
Max input voltage: 5 V RMS
Input sensitivity: 0.7 V RMS
Input impedance: 47K Ohm
Pre out gain: 6 dB
Gain: 36 dB
Connections
Analogue line inputs: 2 x balanced XLR, 5 x RCA, 1 x balanced XLR HT bypass
Optional inputs: HiDac Mk2
Outputs: 1 x pre out stereo unbalanced RCA, 1 x pre out stereo balanced XLR
Headphone Specifications
Output power: 3.3 W @ 16 Ω , 2 W @ 32 Ω
Max output level: 10 V RMS
Dimensions: 16.9" (D) x 20.8" (W) x 7.67" (H)
Weight: 88 lb (40 kg)