Class AB tube amplifier with 2 x 130 watts

With a powerful soul: The Soul 170I was developed based on the Tungsol KT170 power tube. It delivers 130 watts of power in Ultralinear mode or 75 watts of power in Triode mode per channel. For the Class AB push-pull circuit, the Soul 170I is equipped with two powerful KT170 tubes per channel. The 22DE4 is used as a tube rectifier for the power supply of the input driver stage, which is equipped with ECC83S and 6SN7 tubes.

The 170I offers two operating modes: Triode and Ultralinear. This allows you to choose between two different sound signatures. The Triode mode is tender, harmonic, soft, and gentle. Ideal for vocal and instrumental music. The Ultralinear mode offers a powerful and controlled playback. Ideal for music with punch and dynamics

On the back of the amplifier, there are three pairs of line inputs, one pair of balanced XLR inputs, and a pair of inputs for connecting a preamplifier, allowing the amplifier to also be used as a pure power amplifier. A sub-out is also available in case an additional subwoofer system is used.

The bias of the KT170 power tubes can be easily monitored via the meter on the top and adjusted by the user.

Like all other Cayin amplifiers, the Soul 170I uses point-to-point wiring. The entire circuit, including the signal path, is carefully wired by hand with high-quality cable.

A soft-start circuit and high-voltage delay to protect the tubes and the amplifier ensure a longer lifespan for the high-quality components.

Furthermore, high-voltage fuses are used to protect the amplifier; they are located on the top chassis plate near the power tubes. In the event of a tube failure, the fuse reacts immediately.

Naturally, only high-quality components are used: Alps volume control, porcelain tube sockets, selected capacitors and carbon film resistors in the finest audio quality, a generously dimensioned toroidal transformer for the power supply, and EI output transformers with a wide bandwidth.

Output transformers are sometimes the most important components of any tube amplifier. They determine the bass quality, and the resolution in the high-frequency range is significantly influenced by these components. Cayin develops and manufactures the output transformers itself and relies on a complex multi-layer winding with optimal impedance matching for the connected transducers.

The Soul 170I comes standard with a high-quality metal remote control that remembers the device's last setting when it is switched off.

Device type
Vacuum tube integrated amplifier / Tube amplifier

Output power
75W + 75W RMS triode, 130W + 130W RMS
Ultra-linear

Frequency response
5Hz~50kHz (-3dB)

Total harmonic distortion
0.2% (1kHz)

Signal-to-noise ratio
97dB

Input sensitivity
420 mV, 1300 mV (Pre-In)

Input impedance
100 kΩ

Output impedance
4 Ω, 8 Ω

Tube complement
ECC83S x 2, 6SN7GTB x 2, RCA 22DE4 x 1, KT170 x 4

Maximum power consumption
680 W

Inputs
XLR balanced, LINE1, LINE 2, PRE-IN

Dimensions (W x D x H)
430×448×238 mm

Net weight
38.7 kg

Herstellerangaben:

Zhuhai Spark Electronic Equipment Co., Ltd.
No. 9 LianFa Road
Zhuhai City
Shuanglin , Guangdong Province
China
info@cayin.cn

Verantwortliche Person:

Cayin Audio Distribution GmbH
An der Kreuzheck 8
61479 , Glassworks
Germany
info@cayin.com