Availability: In Stock

RA-833 Monoblock Power Amplifier

SKU: RA-833-SE




130W Single Ended Power Amplifier

Highlight features

  • Very powerful class A Single Ended power amplifier can reach 130W
  • Separated power supply to reduce affect of magnetic from all transformers
  • Separated heater transformers and 833 heater was rectified by silicon-diode, then flat by C-L-C circuit with 8×22,000uF capacitor and choke
  • Initial stage and driver stage high-voltage was rectified by GZ34 Tube,that can help to softstart and very smooth sound
  • Special interstage transformer was made in house that can help RA-833 reach max power and wide bandwidth
  • Pure Silver Solid 4N (99,997%) wire was used in signal path
  • Upper chassis was CNCed from 6061 80mm solid billet, then surface finshed by anodized in beautiful gold-champane color, other detailed by  Crome plated
  • All tube socket was CNCed by Teflon and Copper to improve sound quality and long term used with high temperature



Power Tube 833
Effective power output 131W
Frequency Range 10Hz-70KHz
Input Sensitive 1.0V
Input Impledance 100Kohms
S/N Ratio >95dB
Power Consumption 700W each
Power Supply 100V, 120V, 230V
Load Impedance 4/8 Ohms
External Dimension 380Wx400HxD515mm


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