The Legendary 6C33 Triode Output Tube

The powerhouse 6C33-CB output tubes were first discovered in a MiG-25 fighter jet where it was used to regulate the power supply of the primary radio. The tube was made to be incredibly rugged, able to withstand an EMP attack and several G-forces.

BAT has expertly applied the 6C33 in tube amplifiers for over 20 years. When used with our custom-made output transformers the sound this amp makes will surprise you. This isn’t your grandfather’s tube amp!

BAT tube amplifiers are fundamentally different from every other tube amp you’ve heard. The VK-80t can drive virtually any loudspeaker and deliver the complete experience from top to bottom. You get the magic and finesse of tubes with the power and dynamics you’ve been searching for.

Easy to use. Your choice of Stereo or Monoblocks.

BAT’s unique Intelligent Auto-Bias and Fuseless Protection circuit, originally designed for the top-of-the-line REX series, makes the VK-80t as easy to operate as a solid-state amplifier. You never need to get out the multi-meter, fuses, or tools. Just turn it on, warm it up, and play.

The VK-80t supports Low, Medium, and High impedance loudspeakers to achieve maximum compatibility with any loudspeaker. If you ever feel the need for even more power, the VK-80t can easily be upgraded from a stereo to monoblock amplifier to double the power.

Fully Balanced Design with Superior Parts Quality

All BAT components feature custom made and hand-selected parts that are chosen after hundreds of hours of listening tests.

The VK-80t features custom wound output transformers, toroidal power supply, and Mundorf capacitors to achieve its natural sound with a breath of life.

This newest generation of BAT components use new aluminum chassis for optimum thermal management ensuring long-life performance of the tubes and critical parts.

Every BAT component is made in the USA by a small, dedicated team of passionate craftsmen and engineers.