The Balanced Audio Technology VK-85 preamplifier from Wilmington, USA, unveiled alongside the REX 300 power amplifier, seamlessly merges the worlds of premium tube and solid-state audio. A standout feature of the VK-85 is BAT’s signature high-current Unistage configuration with transformer-coupled outputs, a mainstay in Balanced Audio Technology’s preamplifier lineup. The second-generation output transformers in the VK-85, combined with a symmetrical N-channel Unistage gain block, deliver the high-current performance that defines BAT’s identity. The new connection setup for the SuperPak Quattro technology featured in the REX 300 elevates the musical finesse and textural richness to captivating levels.

Revamped Power Supply

The VK-85 incorporates a redesigned power supply featuring the fourth-generation SuperPak, as seen in the REX 300, providing four stages of filtration and significantly reducing the preamplifier’s overall noise floor. Noteworthy components within the SuperPak Quattro include premium silver foil/oil capacitors that enhance harmonic precision beyond standard power supply bypass designs.

Efficient Unistage Design

Embracing simplicity in design, particularly in the direct signal path, Balanced Audio Technology maintains a purist stance on circuit topology. The VK-85’s signal transmission relies on a single gain stage, free from the negative effects associated with other preamplifier designs, ensuring a clean amplification process with no compromise on signal integrity.

Advanced N-Channel MOSFET Circuitry

The VK-85 employs a circuit based on N-Channel MOSFET devices, a departure from the typical use of both N- and P-Channel devices in solid-state designs. By utilizing identical N-Channel devices for handling both sides of the waveform, the VK-85 achieves a symmetrical signal flow with superior performance characteristics.

BAT VK-85 Preamplifier Specifications

Explore more about the BAT VK-85 Preamplifier here.