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Delivering 55 watts per channel, VK-80i uses four 6C33C-B triode output tubes for power delivery. They offer many times the current delivery of the 6550/KT90 tetrode tube variant used in most traditional tube integrated amplifiers. In addition to driving even difficult low-impedance speaker loads, the all-triode fully balanced design provides a natural portrayal of harmonic texture and instrumental timbre. Your recordings will sound more alive while simultaneously yielding greater finesse, grace, and inner detail.
“Fuse-less” Protection Circuit
In the event an output tube becomes over-stressed, all you need to do is turn VK-80i off and on again to restore normal operation. That’s it. The elimination of internal fuses also contributes to a greater sense of ease and more natural reproduction of music. Also, the fuse-less protection circuit is combined with a world-class automatic-bias circuit that eliminates the constant need to set and readjust the proper bias of the output tubes. No tubes to bias. No tube fuses to replace.
Intelligent Auto-Bias Design Makes Operation a Cinch
The advanced engineering within VK-80i eliminates the traditional headache associated with most vacuum-tube power amplifiers—specifically, the constant need to set and readjust the proper bias of the output tubes. VK-80i 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 your VK-80i sounds wonderful within the first few minutes of listening.
Output per channel at 8Ω/4Ω
55W
THD at full power
3%
Frequency response
8Hz to 200kHz
Input impedance
215 kΩ
Tube complement
4x6SN7, 4x6C33C-B
Power Consumption
400W idle, 800W full power
Remote included
Yes – all metal
Signal inputs
1 XLR, 3 RCAs
Volume control
Resistive ladder, 90 steps, 1dB per step
Dimensions
43.2 x 20.3 x 40.6 cm
Weight
20.4 kg