Electra-Print Audio300B-DRD Electra-Print Audio 300B-DRD  Pair mono Tube Power AmplifiersVery nice PAIR of AMERICAN made: Electra-Print 300B-DRD tube mono amplifiers. Supplied with 3-Sophia 300B globe type tubes (one extra tube) as well as 2 pieces 6A3 tubes which can be used as an ...1795.00

Electra-Print Audio 300B-DRD Pair mono Tube Power Amplifiers [Expired]


no longer for sale

Very nice PAIR of AMERICAN made: Electra-Print 300B-DRD tube mono amplifiers. 


Supplied with 3-Sophia 300B globe type tubes (one extra tube) as well as 2 pieces 6A3 tubes which can be used as an alternative and YOU can find which one best suit's your taste. Also 2-6AN4 tubes. 

"Our 300B DRD amp is derived from the classic Loften-White design. Using a 300B (or Sovtek 6A3) tube the output will be over 10 watts, -1dB 18 Hz to over 20 kHz, less than 1% distortion and only needing 0.7 V input to give full output. No coupling devices (capacitors or transformers) are used to minimize the coloring the sound. Power supply has been changed to give a efficient tighter more stable power delivery."

Improvements include:

  • Replacement of hard to find oil cap with large value electrolytic which increases coupling at low frequencies
  • Simpler means to adjust the operating points of both tubes
  • A means to measure current of output tube
  • Increased input sensitivity by 100%
  • Rectifier tubes eliminated, diodes giving increased tighter bass because of no 
  • forward voltage drop
  • Heat protection devices have been added where needed to safeguard Schottky diodes

Very informative review here:

http://www.highfidelityreview.com/electra-print-300drd.html

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     David Weinhart

Weinhart Design, Inc. 
   President & CEO 

The Audio and Video Expert 
e: david@weinhartdesign.com 
www.weinhartdesign.com

2337 Roscomare Road, Studio #1 
Los Angeles, California 90077

 Showroom) 310-472-8880 
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