• Class AB Ultralinear Output Stage tube amplifier with low (6dB) global feedback
  • Compatible output tube types: KT88, KT90, KT120, KT150, and KT170
  • Capacitor multiplier circuit used to minimize noise/hum
  • Polypropylene capacitors used for power supply filtering (no electrolytics)
  • Lundahl custom spec C-core power transformer, choke and output transformer
  • 4 & 8 Ohm output taps utilizing custom made McGary Audio gold plated binding posts
  • Gold plated RCA input connection
  • American made 13-Gauge steel enclosure…powder coated throughout with gloss Midnight Blue metallic base, Satin Black top plate and Metallic Silver ink lettering
  • Ceramic tube sockets with silver plated contacts (sockets attached directly to the chassis)
  • Point-to-point and tagboard hand wired construction with 16-gauge Teflon insulated silver plated copper wire, Cardas Silver Solder for all electrical connections
  • Solen Teflon, Mundorf Oil, Wima polypropylene capacitors, and Vishay/Dale precision metal film resistors utilized throughout
  • Detachable IEC power cord connection (power cord not supplied)
  • Tubes: 6N1P input tube, 6SN7 driver vacuum tube, KT90 matched pair output vacuum tubes
  • Self-bias output tubes require no bias adjustments.
  • Timed delay relay surge controller for slow start turn-on and increased tube life
  • Electrical Engineer designed, hand built and tested solely by Mike McGary in Gainesville, Virginia 
  • Lifetime Warranty (excluding the vacuum tubes- 90 day warranty from date of purchase)


  • Power Bandwidth: 10 Watts RMS (THD+Noise less than 0.1%), 70 Watts RMS (THD+Noise less than 2% at onset of clipping) using 8Ω load with KT90 output tubes, measured frequency range of 7Hz – 42kHz (0,-1dB) 
  • Input Impedance: >90 kΩ
  • Sensitivity: 0.57 Volts RMS at rated output power
  • SNR: > 90 dB unweighted/unfiltered, referenced to full rated output power at 1kHz into 8Ω
  • Hum and Noise (with input grounded): 800 microvolts (typically)
  • Phase: Non-inverting
  • Dimensions: D= 13”, W= 13” and H= 5”
  • Power consumption: ~ 165W (tube dependent)
  • Weight: 28 lbs.
  • Power: 120V-60 Hz/240V-50Hz (electrically configurable, please inquire if purchasing product for use outside the USA)

NOTE: Specifications depend upon line voltages and tube types.


$25,000.00 pair (not sold individually)

Limited Production- only 10 pairs will be manufactured!