Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.

Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.

Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.

Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.

Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.

Based in the Czech Republic, KR Enterprise is headed by an occasionally gruff Dr. Riccardo Kron and his American-born wife, Eunice, who operate the company out of a partially abandoned factory that was once part of the state-owned Tesla High Vacuum Technology facility in Prague. The Swiss-funded company is unique in that it manufactures both amplifiers <I>and</I> the tubes that power them. KR's tubes have found favor with other amplifier makers as well&#151;especially the 300BXS, electrically identical to a <A HREF="http://www.stereophile.com/features/229">standard 300B</A> but rated at 25W in class-A.