F2a11 Integrated

Single-Ended Triode
Integrated Amplifier

The F2a11 Integrated Amplifier utilizes…
the famous F2a11 vacuum tube in single-ended triode operation mode for an output power of 2×6 watts into a 4, 8 or 16 ohm load. The F2a11 tube is a power tube of matchless built quality, exclusively manufactured by SIEMENS (& HALSKE) in the 1950s and early 1960s which has been specifically designed for the most demanding industrial applications. It belongs to the famous so called POSTRÖHREN family of German tubes and is widely known for its usage in the iconic SIEMENS KLANGFILM cinema amplifiers.

When operated in triode mode the F2a11 offers excellent sonics on par with the finest classic filamentary triodes such as 300B, 2A3, AD1 or PX25.

Thoeres Verstärker
Thoeres Verstärker

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