BALANCED AUDIO TECHNOLOGY VK-55SE VALVE POWER AMPLIFIER
RETAINING EXISTING STRENGTHS AND ADDING NEW BENEFITS
The fully balanced, all-triode VK-55SE power amplifier retains all the strengths that make the VK-55 a stellar performer - including the world-class automatic-bias circuit found in BAT's reference REX II Power amplifier--while incorporating the 6H30 SuperTube into a completely revised first gain stage. This is the same tube used in BAT’s REX II models, and provides the VK-55SE with a more transparent, involving reproduction of the musical event. The VK-55SE also employs the same paper-in-oil capacitors used in BAT’s flagship amplifier designs, resulting in more natural and coherent sonics. Finally, the power-supply energy storage is increased to over five times that of the VK-55!
IMPROVED OUTPUT TUBE AND CURRENT SOURCES
Delivering 55Wpc in the stereo version or a robust 110Wpc as a monoblock, the VK-55SE power amplifier utilizes a 6C33C-B triode output tube that offers many times the current delivery of the 6550 tube used in many traditional tube amplifier designs. The VK-55SE also substantially improves its circuit topology by incorporating vacuum-tube current sources for the first gain stage of its design. Those installed in the VK-55SE provide a more soulful portrayal of harmonic texture and instrumental timbre. Your recordings will simply sound more alive while simultaneously yielding greater finesse, grace and inner detail.
INTELLIGENT AUTO-BIAS DESIGN THE ICING ON THE CAKE
The VK-55SE’s advanced engineering eliminates traditional headaches associated with most vacuum-tube power amplifiers—specifically, the constant need to set and readjust the proper bias of the output tubes—as the VK-55SE features an intelligent automatic bias design that adjusts for changing line voltage and aging tubes, with each output tube having its own dedicated bias circuit. The auto-bias circuit also ensures that your VK-55SE sounds wonderful within the first few minutes of listening. Loaded with reference-grade improvements, the VK-55SE offers more magic by digging deeper into the raw emotional power that bestows music with transcendent grace and absorbing detail
|Output per channel at 8Ω/4Ω||55W / 55W||Conversion to Mono?||Factory or Wire Kit|
|Output in Mono Configuration 8Ω/4Ω||110W / 110W||Frequency Response||8Hz to 200kHz|
|THD at full power||3.0%||Input Impedance - stereo version||215 kΩ|
|Input Impedance - mono version||108 kΩ||Gain (Nominal into 8Ω)||25dB|
|Tube Complement||2x6H30, 2x 6SN7, 2x6922, 4x6C33C-B||Number of Power Cords||1|
|Remote Control||No||Power Consumption (Idle/Full Power)||400W/800W|
|Dimensions (Inches)||17"W x 8"H x 16"D||Dimensions (mm)||431W x 203H x 406D|