The VK55 is the best tube amp I have owned I can honestly say. It drove me Tyler Acoustics Highland Series 3.5 easily. The only reason I am selling is I have switched speakers and need more power otherwise I would not be selling. The tubes had 20 hours when I bought the amp and I estimate they have no more than 150 hours now. So basically they are broken in. If you have any questions feel free to ask. Below is a description from BAT's website.
The Balanced Audio Technology VK-55 represents the meticulous application of modern design principles to the development of a compact, affordable, yet supremely easy to use vacuum tube power amplifier that sets a new standard for musicality in its class. The result is a unique combination of fully balanced, all-triode design topology, automatic biasing of individual output tubes, and a marvelously simple upgrade path to monoblock operation – all in a chassis that is more compact than any previous BAT tube amplifier design. Beyond its outstanding musical performance, the VK-55 is eminently affordable as well.
Moreover, by using the same high-current dual-triode 6C33C-B tube employed in our flagship REX II Power amplifier, the VK-55 delivers the high-current kick required to drive even difficult low-impedance speaker loads.
55 Watts per channel (Stereo) 110 Watts per channel (Mono)
The VK-55 power amplifier is a high-current all-triode design that offers 55 watts per channel in the stereo version or a robust 110 watts per channel as a mono block. The 6C33C-B triode output tube used in the VK-55 Power amplifier offers many times the current delivery of the more common 6550 tube used in many traditional tube amplifier designs. High impedance vacuum tubes like the 6550 require far more complicated output transformers than the low impedance 6C33C-B vacuum tube. Consequently, the VK-55 Power amplifier is quite comfortable driving low impedance loads. You can simply choose the stereo or monoblock version based upon your choice of speaker and room size. The high-current delivery of the VK-55 Power amplifier will give you the assurance of driving a difficult load with ease.
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 (20dB)
Tube Complement 4x 6SN7, 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
Weight 50 Lbs
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Item can be returned within 7 days of receipt.
Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.
Buyer will receive a full refund in the original payment method less any shipping charges.