Sunday, 10 March 2019

Arcadia Model 7 Linestage Preamplifiers

It is two years since the first of the new SJS Arcadia Model 7 linestage preamplifiers were developed. 

During this time we have continued with research and development to further refine the musicality of the amplifiers, as well as offering both a Standard and Enhanced version of the design.

The Standard version has carbon film resistors and an RC couple gain stage:



The Enhanced version has tantalum film resistors, a choke loaded LC couple gain stage and enhanced psu choke:



Both versions feature 6111wa NOS military twin triode valves in the gain stage, Duelund Coherent Audio copper foil coupling capacitors, and the common SJS design elements:

  • Single Ended circuit topology
  • Pure Class A operation
  • Zero negative feedback
  • Valve rectification and choke-input HT power supply
  • Custom made HT T-network power supply capacitors with silver leads
  • Point-to-point circuit wiring without PCBs
  • Hand built
  • PTFE board for component mounting
  • High quality components throughout
  • Custom made aluminium chassis

Each amplifier comes with 2 years parts a labour warranty, except for the valves which have a 6 month warranty.

SJS Arcadia amplifiers are available from Definitive Audio in Nottingham.

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