The Balanced Audio Technology VK-60 embodies the elegant application of modern design principles to vacuum-tube technology. It incorporates all-triode zero-feedback topology, fully balanced operation, the ability to drive difficult loads, and true automatic biasing. The result is a power amplifier that is both easy to use and musically without peer.

Musical clarity

The VK-60 offers the startlingly lifelike midrange of the best single-ended amplifiers while delivering the dynamic power and frequency extension associated with push-pull models. Its single-ended bridge design avoids the direct current that compromises output transformer performance in single-ended amplifiers and eliminates the crossover distortion inherent in push-pull designs. Without these debilitating artifacts, the VK-60 opens a magical window on the original performance--a direct emotional connection to the music.

Dynamic authority

Dynamic or hybrid speaker systems often require substantial current to achieve optimal performance. The VK-60's 6C33C-B power tube is unique in its ability to deliver high current at a relatively low plate voltage--several times more current than the popular 6550 power tube. It vastly simplifies the output transformer's task of transferring power to demanding loads. The VK-60's innovative design exploits these strengths to drive real world speakers with commanding authority.

Automatic bias

The VK-60 eliminates the traditional headache of tube power amplifier ownership: the constant need to adjust the bias of the output tubes. It features a sophisticated automatic circuit that performs real-time bias control of each individual output tube. Without sonic penalty, the automatic bias circuit compensates for the warmup, aging, and variation of tubes as well as fluctuations in line voltage. Just turn the VK-60 on and enjoy the music.

Versatile performance

The VK-60 is available as either a 60-watt-per-channel stereo amplifier or a 120-watt-per-channel monoblock. The owner of a stereo VK-60 who acquires less efficient speakers or a larger listening room--or simply wants more power--can add a VK-60 monoblock and have the original unit easily updated to monoblock format. In either configuration, the VK-60 delivers reference-quality performance.