【Excellent Condition】Oto no Kobo SK-100-HB Wood Type Black

◆ SK-100-HB Wood Type Black - Ultra Triode Connection Single Vacuum Tube Amplifier

[Product Condition]
◎ Operation confirmed
◎ No scratches or scuffs, in beautiful condition. Connection terminals show no signs of age-related deterioration.
(Please check photos)
◎ Sound quality is solid with minimal noise.
◎ Vacuum tubes glow blue.
◎ Accessories: Instruction manual, power cord
Original Price: ¥90,200
(Year-end Sale Price: ¥85,690)

(Quoted below)
The SK-100 is an A-class single vacuum tube amplifier that uses a composite vacuum tube configured with the ultra-triode connection invented in the 1990s.
This is different from hybrid amplifiers that produce sound using inexpensive vacuum tubes and semiconductors.

The SK-100-HB weighs approximately 5kg due to its use of a semiconductor switching power supply. Other manufacturers also seem to offer vacuum tube amplifiers with composite tubes and ultra-triode connections. Initially, I was looking for an inexpensive vacuum tube amplifier, but those I found appealing cost hundreds of thousands of yen. While researching amplifiers, some of which lacked headphone jacks, I discovered the SK-100.

When listening with headphones, there is no left-right volume imbalance, no audible noise, and the sound is stable across low, mid, and high frequencies, with a transparent, powerful, and rich quality that is truly impressive.

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