FET input + Class A/B MOSFET out = 50 Watts into 8 Ohms, 95 Watts into 4.
Cees Ruijtenberg of Metrum and now Sonnet fame is probably best known for his DACs, like the Sonnet Morpheus that caught my fancy when I reviewed it in September of last year. The fully balanced Kratos Mono Power Amplifiers are fairly straight forward as you can see—RCA or XLR in and a single pair of speaker binding posts out on each mono block. Just add power and a front end.
A front end very much like the new, and newly arrived in Barn, Sonnet Pasithea DAC/Preamp. Yes, I’m going to review them as a stack of Sonnet. Just add speakers.
The Kratos literature suggests they share some sonic qualities with a tube/ss hybrid design, something I look forward to listening for. Stay tuned!
Sonnet Kratos Mono Power Amplifiers
Price: $5195/pair
Company Website: Sonnet Audio
US Distributor Website: Audio Art Cable
Specifications
50 Watt into 8 Ohms, 95 Watt into 4 Ohms
Class A/B
Distortion 0.040% THD
Output impedance 0.10 Ohms
110/115V AC 220/230V AC 60/50Hz
Output Noise 310µV RMS A weighting
Frequency Response 10 – 230.000 Hz – 3dB
Slew Rate 100V / µSec
Input Impedance RCA 15 KOhm, XLR 60 KOhm
Gain: 22dB
Max Power consumption 400 Watt
Main Voltage 110/115V AC, 220/230V, 60/50Hz
Dimensions 290 x 250 x 60 mm
Weight 3.9KG