Shadow MK2 Stereo Amplifier

Shadow MK2 Stereo Amplifier


Shadow Reference Stereo Amplifier

Stereo two-channel amplifiers are still the most popular and convenient configuration in high-end audio and are most often placed between the speakers. Raven Audio‚Äôs handsome and well-appointed 14-tube Shadow Reference Stereo Amplifier fits the bill delivering a robust 50wpc. Please note!!!  The current output of this amplifier rivals 250wpc solid state amplifiers, easily handling speakers down to 82dB efficiency with a deft and agile authority.

The Shadow Reference chassis is machined-from-solid-billet aluminum with solid-bronze corner posts, brass trim and stainless-steel screws. Chrome ball footers isolate the amplifiers and tubes for better sound while avoiding scratches on your fine furniture. The Shadow Reference is all hand-wired point-to-point with silver-plated PTFE-coated conductors, three types of solder and a 99.999% pure-copper buss bar.

The Shadow Reference is designed to expresse the best of what Raven Audio can do in a stereo amplifier using KT-88, KT-90, KT-120 or 6550 power tubes (currently NOS available from GE, Tung Sol, Sylvania, and labelled RCA, Raytheon, and a myriad of others, but the manufacturers are the same original four.  These old tubes can be a phenomenal upgrade, but they are no longer making them, so the quads and pairs are EXTREMELY limited, and somewhat expensive as a result~!

Enhance your Raven Audio experience with NOS (New Old Stock) 6550's by RCA, Sylvania, GE, or possibly even the revered Tung Sol if available. All Raven Audio amplifiers are auto-biased; you never have to adjust tubes for a perfect match.  Matched pairs are however desired to keep the noise levels down.  In other words, unmatched pairs may work, but they will still add a bit of noise if they are.  So it is always best to get matched pairs.  The currently manufactured Svetlana 6550's and Tung Sol labelled KT150's, 120's etc. are really good now.  So they can offer great sonics for a lower price than trying to obtain the "Heaven's Gate" that the old original Tung Sol 6550's give. 

"The new Tung Sol labelled KT-150's are 90% there now in comparison to the old original much-revered Tung Sol 6550's as far as I am concerned."  (Dave Thomson - Raven Audio)

Raven Audio tube components bring the added dimensions of emotion and excitement, a nearness to the music that makes everything breathtakingly real. The clarity, air, sound-staging, sheer palpability and smooth frequency response allows listeners to easily suspend disbelief and fall into the music in a completely visceral way.

We understand, the richness, the closeness, the musicality of tube components is totally captivating, and Raven Audio built the Shadow Reference Stereo Amplifier to give the tube lover big system performance in an elegant package.

Besides sounding wonderful, Raven Audio "Elite Series" products have a sumptuous look and feel.  The casework is phenomenally engineered and machined prior to anodizing.  These truly are "lifetime, heirloom-quality chassis that are unsurpassed throughout the high end audio industry."

Features and Specifications

  • Output: 50wpc (but with an extremely high current - comparable to 200-250wpc solid state amps)
  • Frequency response: 20Hz - 20kHz
  • Input terminals: Balanced XLR and single-ended RCA
  • Speaker terminals: 4 and 8 ohm
  • Recommended speaker sensitivity: 82dB - 95dB
  • Dimensions: W 19.5" x D 13.5" x H 9.5"
  • Weight: 68lbs

Tube Complement

  • 4 x 12J5 - First stage amplifier/phase inverter
  • 2 x 12SN7 - Driver tube
  • 2 x 12SN7 - Cathode follower
  • 2 x 12SN7 - Auto bias
  • 6550/KT88/KT90/KT100/KT150
  • Auto-biased power tubes, interstage transformer