• A2.640 Amplifier
      • A2.640 Amplifier
      • A2.640 Amplifier

      Starke Sound

      Starke Sound A2.640 Amplifier



      In stock (0) - 10 - 20 days Available in store: Check availability

      The new A2 is a top-level, fully-balanced design. It supports Class A amplification by leveraging graphene, a high-tech heat-dissipation material. Free Shipping to Continental US only !

      Product description

      Bold is Beautiful.

      In December of 2015 we received an email from Gianluca Vignini, our Italian dealer in Ancona, Italy. He expressed the need for a high end 2-channel amplifier with the same superb sound quality as the A7 7-channel amplifier. In the attached photo you can see the audiophile’s pair of “flagship” speakers are connected to our A7. His customer resisted at first to the idea but with Gianluca’s persistence, they decided to audition it together. They soon discovered it to be the perfect amplifier for getting the ultimate sound quality from his lavish stereo system. He immediately ditched his high-end 2-channel amp for the A7, unwilling to go back once he’d experienced its improved performance. His only concern was regarding the faint noise produced by the A7’s cooling fan which is required for its enormous power output and unique method of Class A operation.

      Gianluca emphasized the importance of finding a solution that would eliminate the fan noise. Dan Wiggins, Starke Sound’s chief technical officer and A7 designer knew this would be a difficult challenge but nonetheless it was a challenge he was happy to take on. And after two years of passionate development and unrelenting design changes, the fan was eliminated. The result is the new A2 - a top-level, fully-balanced design that will be released this spring. It maintains the Class A amplification principle by coupling it with the application of a high-tech heat-dissipation material graphene. The design is a combination of both traditional and radical—a perfect expression of the Starke Sound ideal that Bold is Beautiful.

      The output chips have two levels, 10 pairs of op-amp, more than 600 watts of RMS power per channel, with a peak output of 2100 watts per channel. A veritable monster amplifier! The Starke Sound team will continue to bring leading-edge ideas, technologies and materials into the music and sound reproduction industry, combining the essence of tradition with the latest breakthroughs to create beautiful results.

      Starke Sound A2.640 Amplifier User's Manual


       Output Power

      640W RMS x 2 at 4 Ω


      320W RMS x2 at 8 Ω

      Class A Power

      65W at 2Ω, 4Ω, 8Ω

      Amplifier Type

      Class A + AB

      Frequency Response

      1Hz - 100Khz  +/- 0.1DB

      Maximum Output Current per Channel


      Signal-To-Noise Ratio(SNR)

      116dB, “A” weighted

      Input Terminals

      2 single-ended via beryllium copper RCA connectors, gold plated.


      2 balanced via Neutrik XLR locking connectors, gold plated.

      Output Terminals

      2 pairs of Beryllium copper binding posts

      Color Options


      Full Size

      ( W ) 16.1" x ( H ) 7.6" x ( D ) 17.7" w/ foot


      81 lbs 

      Shipping Size

      ( L ) 23" x ( W ) 21.6" x ( H ) 12.7"

      Shipping Weight

      92.5 lbs 


      3 years from purchase date

      Available in store


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