ESS 6" AMT Black Speakers – Massdrop Exclusivesearch

ESS 6" AMT Black Speakers – Massdrop Exclusive

ESS 6" AMT Black Speakers – Massdrop Exclusive

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Passive Floorstanding Speakers With AMT Technology

The ESS 6-inch AMT speakers are part of a lineup of audiophile-grade floorstanding speakers that contain the ESS Heil AMT (Air Motion Transformer). The original air motion transformer was created by noted German physicist Oskar Heil, and his patent was licensed exclusively to ESS Laboratories for production in the US. The ESS Heil AMT uses revolutionary technology based around a double-sided diaphragm and its magnetic components, which allow the sound signal to move five times faster than it would with the air motion of a conventional cone driver. Each piece of these speakers is cut, assembled, painted, and individually tested by hand, and this Massdrop-exclusive version is complete with a stylish semi-gloss black finish.

Note: You’ll receive a pair of passive speakers. An amplifier is required for operation.


  • ESS Laboratories
  • Semi-gloss black finish
  • Heil AMT (Air Motion Transformer)
  • Heil brilliance control on back
  • 6.5 in (16.5 cm) driver
  • Removable grille
  • Gold-tipped connectors
  • Equipped with transmission line
  • Sensitivity: 94 dB
  • Impedance: 6 ohms
  • Power capacity: 175 W RMS
  • Frequency response: 45 Hz–23 kHz +/- 3 dB
  • Crossover frequency: 1,200 Hz
  • Dimensions: 9.5 x 9 x 18.625 in (24.1 x 22.9 x 47.3 cm)


  • ESS’s 1-year warranty 


All orders will be shipped by the vendor.

Estimated ship date is Apr 2, 2019 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.