Soul 170HA

Single-ended Class A

Powerful and Authoritative

KT170 Vacuum Tube

Headphone/Speaker Amplifier

The Fancinating KT170

The Story of KT Vacuum Tubes

Tung-Sol KT170 is an octal-based beam tetrode vacuum tube, it is the 2021

newly released flagship of the KT (kinkless tetrode) tube family.

Audiophiles love the KT family, and the KT88 has maintained a center role since

1956.  There were multiple attempts to develop a new vacuum tube for high-end

audio, that rivaled the sonic performance of KT88 with higher power.

The KT170 is the latest attempt from Tung-Sol and by far the best attempt based

on our experience with all the KT vacuum tubes currently available.

Cayin Knows KT170

Tung-Sol is originally an American company known for producing high-quality

vacuum tubes. The New York based New Sensor Corp now owns the brand. They

revitalize the brand and replicate the quality and characteristics of the original

Tung-Sol tubes in the same factory that produces Electro-Harmonix.

Cayin maintains a long-term working relationship with New Sensor Corp., we

have participated in their new vacuum tube developments and conducted in-

depth testing for them before product launch.

We know the technical details of KT170 inside out and have first-hand experience

with this tube well before its official launch.  That explains why we can develop a

completely new amplifier based on KT170 promptly.

A Sumptuous Feast of KT170

A Pioneer in Personal Audio

First and the only design to optimize a matched pair of Tung-Sol KT170 for a

Single-ended Class A headphone amplifier.

Features a high-efficiency outboard power supply circuit with substantial power

reserves, delivering an authoritative headphone output of up to 18WPC, ushering

headphones into a new realm of personal listening experience.

Embodies 31 years of Cayin's experience in vacuum tube circuit design.