Award Winning Audio

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Inspired by Tradition

When Hi-Fi pioneer David Hafler incepted Dynaco in 1955, he had no idea it would become the most popular tube power-amplifier company of all time. 60 years later, we are building on this legacy to produce perfect audio—The music has changed but Dynaco's quality still remains.

Tube Amplifier

ST-70 Series 3


The Dynaco ST-70™ Series 3 tube amplifier is a modern version of the most popular stereo tube amplifier of all time upgraded for today's HiFi enthusiast.


the absolute sound

Most Significant Electronic Debuts

Munich High End Show

“The ST-70 is an amp David Hafler would have been proud of.”


Dynaco ST-70 Series 3 Inside Story

“Recreating and improving upon a true classic was a lot more work than any of us expected. This year and a half journey proved to be challenging and exhilarating.”

Hear what you've been missing

Passion for Perfection

All Hafler products are designed and hand made in North America, using the finest components while every possible effort is made to reduce odd-order harmonic distortion, minimize phase shift and broaden the frequency response to ensure the signal transfer from source to destination is pristine and color free.