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Sonnet Kratos Mono Power Amplifier (Pair)

Sonnet Kratos Mono Power Amplifier (Pair)
Sonnet Kratos Mono Power Amplifier (Pair)Sonnet Kratos Mono Power Amplifier (Pair)Sonnet Kratos Mono Power Amplifier (Pair)Sonnet Kratos Mono Power Amplifier (Pair)Sonnet Kratos Mono Power Amplifier (Pair)
(£4,162.50 Exc. VAT)

Delivery In 10-12 Weeks

Free U.K. Delivery


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01892 532 995

  • 50 Watt into 8 Ohms
  • Class A/B
  • Gain 22dB
Sonnet Digital Audio
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Why buy from us?

Sonnet Kratos Mono Power Amplifier 

Our Kratos mono block amplifier differs in many respects compared to normal transistor power amps. When looking to available hybrid designs were tubes will drive the power output stage, soundwise Kratos will have lots of similarities. Like them Kratos has an airy and spacious sound but with the control and grip of a transistor amplifier. 

A disadvantage of these hybrids however is the problem of aging of the triodes. To avoid this problem for our Kratos a front end has been made with high voltage fet transistors. As a result, the measurable properties are completely identical compared to triodes, but having the advantages that no aging occurs. 

A similarity is the high operating voltage to get these circuits working. The result is a high degree of linearity. From this point on, the circuit drives a class A/B mosfet output stage. Only a small amount of feedback is needed to get the correct gain, but at the same time, it also improves the damping factor. While a dedicated circuit for the high voltage is made, the output stage is powered from a heavy 400 Watts power supply.

In addition to manual control of the amplifier, it can also be controlled via a remote cable to our Morpheus DAC. Another switchable option is the so-called "music sense" that checks the input for the presence of music and turns the power amplifier on. After half an hour of no information, this circuit will put the amplifier back into standby mode.

Protections are of course part of this design such as over current, offset and overheating and are monitored in real time. All relevant information can be seen via a display on the front.

Shipping typically 3-5 days
  • 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

UK Delivery

  • FREE delivery via DPD Local By 12pm on orders to value over £300, including one hour delivery window service 'Predict & Follow My Parcel'.
  • Royal Mail Special Delivery By 1pm costs between £5.00 - £10.00 on orders to value under £300, dependent on weight.
  • Saturday or Sunday delivery available upon request for supplemental charge.

EU Delivery

  • £25 delivery charge 'Flat Fee' via DHL Europe by Road service (5-7 days) which provides comprehensive tracking of shipments online.
  • £50 delivery charge 'Flat Fee' via DHL Europe by Air service  (2-3 days) which provides comprehensive tracking of shipments online.
    Receiver is responsible for the payment of local Duties and Taxes.

USA & Canada Delivery

  • Services based on your order being shipped to the U.S. and Canada are calculated as follows:
    £100 delivery charge 'Flat Fee' via DHL international 'Day Definite' service per parcel.
    Receiver is responsible for the payment of local Duties and Taxes.


  • Not all products are available for order into Europe, USA & Canada


  • Full manufacturer's warranty on all new purchases. Standard warranty is typically 12 months to 2 years with some goods coming with 6 years manufacturer's warranty.
  • Goods purchased in UK and EU are covered by the Consumer Contracts Regulations.

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