Cayin Soul 170c Tube Preamplifier

The new Cayin Soul 170C tube preamplifier features the world-class Tungsol and Mullard Tubes. It is designed to fully utilize the talents of these amazing valves.

This all tube pre amplifier utilises special 17AX4GT Tube Rectifiers for Power supply duties, while hand selected 6CA7EH are used for the voltage regulation stages, Mullard CV4004/12AX7 and Tungsol 6SN7GTB are implemented for line amplification.

Following the rigorous design concepts of Cayin Soul 170C, the designers have implemented two Negative Feedback Settings: High and Low options are available, allowing the perfect tonal character of the Soul 170C to be dialled in for the listener.

Four pairs of RCA line inputs, and one pair of XLR balanced inputs are available.

One pair of RCA outputs and one pair of XLR balanced outputs are also available - this makes the integration of the Soul 170C into any existing set-up as easy and as high performing as possible.

A quite beautifully crafted anodised solid aluminium front panel has been used, with a fully vented chassis giving a luxurious finish.

The Cayin Soul 170C, like all the other products from Cayin only employs point to point wiring.

The entire circuitry (including the signal path) is painstakingly hand wired with heavy-gauge cable by true audio craftsmen.

A bespoke soft-start circuit and a high voltage delay configuration are used, which fully protect the amplifier and significantly extended life of the more sensitive components.

Premium Parts are used throughout :

• Alps Volume Control
• Porcelain Tube Sockets
• Audio Grade Capacitors (Coupling)
• Carbon Film Resistors
• In-House Toroidal based transformers for the power supply
• In-House Wide bandwidth EI output transformer.

Output transformers are one of the most important part of any tube amplifier. They determine how low the bass will reach and how extended the high frequencies are - these attributes have significant impact on the amplifiers real world musical ability - with this in-house design ability, Cayin have managed to allow the full untapped potential of the Soul 170C to be realised.

Cayin output transformers are custom-designed, wound in-house, and over engineered - this enables us to implement a uniquely designed/complicated multi-layer winding with multiple impedance's on the output to match perfectly with with the different and unique loads offered by the Power Amplifier.

This carefully matched output design , allows the Cayin Soul 170C to promote a more balanced, natural and realistic sound across the complete audio spectrum.

The custom designed Toroidal Power transformer offers unmatched/ultra-stable power production and extreme low hum level providing a super-reliable performance and extraordinary control.

Coming standard with a full function aluminium remote control, the Soul 170C can also memorise the last operation of the unit once switched off.

Features:

• Full Class A.
• Hand-made construction with the finest point-to-point wiring.
• Specially designed El transformer for the power supplies
• Mullard CV4004/12AX7. TUNG-SOL 6SN7GTB for the line amplification.
• 17AX4GT tube rectifier for full retification.
• 6CATEH tube for voltage regulation. Independent voltage regulated power supplies are used to clean up all external disturbances and provide an optimally clean power supply.
• High quality coupling capacitors have been used in the amplifier.
• NFB.LOW and NFB.HIGH can be selected.
• With both RCA/XLR inputs and outputs.
• Equipped with aluminium remote control.
• Soft start function (about 60 seconds).
• Soul 170C can memorise the last operation of the unit once turned off.
• High-quality Japanese ALPS motor potentiometer.
• Heavy gauge silver plated signal cable.
• Equipped with easily-installed tube cover for protection.

Specifications:

• THD: 0.02% (2v RMS)
• S/N Ratio: 100dB (A Weighted)
• Maximum Voltage Output: 8v RMS (RCA), 16v RMS (XLR)
• Max Power Consumption: 75W
• Tube: Mullard CV4004/12AX7 x 2, Tung-Sol 6SN7GTB x 2, ^CA7EH x 2, 17AX4GT x 2