1980

Dan and Rondi founded Krell in order to bring new amplifier designs to market unfettered by the understandings of other engineers and executives about product viability and design.

Krell introduces its first product, the KSA-100, which is the first high-power, high-current, true Class A biased stereo power amplifier to enter the market. The young company struggles to meet unexpectedly high demand as the KSA-100 is embraced by audiophiles of the time.

1982

Krell introduces the KSA-50, a smaller and less-costly version of the KSA-100. Again demand soars beyond Krell’s ability to supply.

1983

KMA-100 and KMA-200 mono amplifiers introduce DC coupling from input to output, eliminating capacitors from the signal path. They also contain fully regulated power supplies for the front-end voltage gain stages and sophisticated protection circuitry for the output amplifiers. These innovations, coupled with massive power supplies, enable Krell amplifiers to drive any speakers with ease.

1987

The KRS-200 mono power amplifier brings convection cooling to Krell products, eliminating the previous fan cooling. It doubles the standard for Class A power and quickly becomes the reference standard for modern amplifier design. It also sets the world standard for substance, 5.6 cubic feet and 240lbs!

1988

With the KSA-80 and KSA-200 amplifiers, Krell introduced fully balanced amplifier design, which maintains balanced operation from input to output.

1989

Krell pioneers the use of 64X oversampling in digital circuitry in the SBP 64X digital to analog converter.