Product Details

Purist approach, true dual-mono design

The fully balanced VK-655SE power amplifier is the ultimate expression of BAT amplifier engineering. Available in stereo or monoblock configuration, it features only two gain blocks in a high-power, zero feedback, and purely symmetrical design. A true dual-mono component featuring independent channel assemblies, power transformers, and separate power cords for the left and right channels, the purist-approach-based VK-65SE yields maximum soundstage width and depth. Finite micro- and macro-dynamics are reproduced with ease. A revised power supply incorporates second-generation oil-filled capacitors, dramatically lowering the noise floor and portraying grain-free, extra-refined harmonics.


Massive power: Enough energy to lift most speakers off the ground

The VK-655SE’s elegant signal path follows BAT’s purist approach of using zero negative feedback to achieve the goals of wide bandwidth and circuit linearity. Its circuit is based entirely on N-Channel MOSFET devices. A high-current design that offers a robust 600 watts per channel into a four-ohm load, the VK-655SE easily drives most any speaker ever made. The monoblock version doubles these figures, and contains a whopping 1800 joules of energy storage—enough to lift most speakers over one meter off the ground! High power—combined with high-energy storage.


Sublime music reproduction: Speed, slam, dynamics

Dynamic responsiveness remains the recognizable difference between live and reproduced music. The VK-655SE couples quickness, slam, and dynamic range with an extended, deep soundstage and an exquisite fidelity to the timbre and texture of instruments and voices. Indeed, the sound of the VK-655SE and REX 3 power amplifiers converge upon the same ultimate goal: sublime reproduction of music independent of the devices employed. By utilizing only the highest-grade parts throughout, BAT allows the VK-655SE to yield supremely transparent insight into any music you play. It’s time you experienced such beguiling sonics for yourself.



Output per channel at 8Ω/4Ω
300W / 600W

Conversion to Mono?
Factory Only

Output in Mono Configuration 8Ω/4Ω
400W / 700W

Frequency Response
3Hz to 250kHz

THD at full power

Input Impedance - stereo version
100 kΩ

Input Impedance - mono version
50 kΩ

Gain (Nominal into 8Ω)

Tube Complement

Number of Power Cords

Remote Control
12V Trigger Input & Output

Power Consumption (Idle/Full Power)

19" x 9.5" x 23.5"


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