New Coincident Frankenstein 300B Stereo Amplifier

Coincident is excited to introduce the newest addition to our series of power amplifiers - the Frankenstein 300B Stereo Amplifier. The Frankenstein 300B Stereo amplifier is the stereo version of the highly acclaimed Frankenstein M300B Mono Amps. The two Frankenstein amps share the exact same mirror finish stainless steel chassis, virtually the same design and circuitry and industry breakthrough performance. 

The differences are the Stereo amp uses the 6SL7 input tube instead of the 6EM7 and utilizes the 5AR4 rectifier instead of the 5U4GB. Both are all hardwired share the vast majority of components. The Frankenstein Stereo 300B will be the best constructed, finest performance and best value of any single ended 300B available. It represents a breakthrough at its reasonable price point. 


  • Output Power - 8 watts RMS SE class A
  • Output Impedance - 8 ohms
  • Frequency Response- 10hz- 20khz- +/- 1db
  • THD- less than 1% 20 hz - 20 kHz
  • Input Sensitivity - 800 MV full output
  • Input Impedance - 47K ohms
  • Power Requirements- AC 115V or 230V 50,60hz ( user selectable on the rear panel)
  • Dimensioin - 15” W x 12” D x 8.5” H
  • Net Weight - 17 kgs- 38 lbs.
  • Tube Compliment - 6SL7 x2, 300B x 2, 5AR4 x 1.

Price - $2499 US, All tubes included except 300B.