VK-500

About the VK-500

The Balanced Audio Technology VK-500 is a high-end, fully balanced stereo power amplifier designed by Victor Khomenko. It features a dual mono configuration with separate power cords, toroidal transformers, power supply capacitors, and main circuitry for each channel, ensuring excellent channel separation and sound quality. The amplifier delivers 250 watts RMS per channel into 8 ohms and 450 watts per channel into 4 ohms, with a total harmonic distortion of less than 1% at full output. It has an input impedance of 100 kOhms, an output impedance of 0.2 ohms, and a very high slew rate exceeding 300 V/µsec. The VK-500 is a heavy and large unit, weighing 105 pounds and measuring 19" wide, 9.5" high, and 23" deep. It includes two large transformers centrally located to power each amplifier channel. The amplifier is designed without global negative feedback and uses MOSFET output devices, contributing to its transparent and dynamic sound. The VK-500 is often sold with the optional BAT-PAK power supply upgrade, which increases energy storage to 1100 joules for improved performance. It features balanced XLR inputs and heavy-duty gold-plated speaker binding posts. The amplifier is highly regarded for its robust build, powerful output, and musicality, making it suitable for demanding audiophile systems.