MPA II “Kronos” PP Mono Power Amplifier

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SW1x MPA II “Kronos” PP Mono Power Amplifier #1
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 1
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 2
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 3
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 4
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 5
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 6
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 7
SW1x MPA II “Kronos” PP Mono Power Amplifier variant 8

SW1x MPA II “Kronos” PP Mono Power Amplifier

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SW1X Audio Design™ MPA II Kronos

Performance Level 1/2/3

KT66 Valve Push Pull Mono Power Amplifier

SW1X MPA II 'Kronos' is a Pure Class A, Zero Negative Feedback, Fully Valve Rectified, Push Pull, 3 Gain Stage, Mono Power Amplifier.


The KT66 Triodes in combination with 6V6 triode connected driver tubes offer the presentation of the famous KT66 electric guitar valves with a grungy & full bodied sound.


The output valves are de-coupled by Output Transformers and driven by 6V6 power valves to enhance the sound of the KT66 valves with power of the 6V6.


Combined with the finest Materials & Components, MPA II is refined & musical sounding, especially when combined with high sensitivity speakers (90dB/W/1m sensitivty as a minimum recommended).


SW1X Audio Design™ MPA II Kronos Mono Power Amplifier Features:

  • Specially Selected and Harmonically Matched Component & Material Quality
  • Push Pull, Zero NFB, Class A, Valve Power Amplifier
  • 6V6 Valve Driver/6J5 input Stage driving the triode connected pair of KT66 Valves
  • 3 Gain Stage Design
  • Hybrid Point 2 Point Hardwiring Technique for the most consistent production results
  • Internally wired exclusively with SW1X Magnum, Genesis and Opus conductors
  • SW1X Audio Design™ Custom Designed Copper wound Super HiB DC Core (50 Watt) Signal Output Transformers
  • Mono, Directly Heated Double Diode Valve Rectified B+ Power Supply
  • Orient grain M6 EI core mains Transformers & Chokes
  • Valve rectified Fixed Bias Power Supply

Tube Compliment (Pair): 2 x 6J5, 2 x 6V6, 4 x KT66, 2 x 5U4G


MPA II Kronos is avaiable in 2 Versions with following output transformer (OPTs) specifications:

  • Standard: SW1X Audio Design™ all Copper wound, orient grain M6 EI Core OPTs
  • Special: SW1X Audio Design™ all Copper wound Super HiB DC Core OPTs

Note: Due to SW1X Audio Design's ongoing research and development process, specifications are subject to change without notice

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