Cayin Soul 170i Integrated Amplifier

New Product

Cayin Soul 170i Integrated Amplifier

View cart

Key info

  • Inspired by this success, Cayin created the new reference line, Soul 170i, using the flagship Tungsol KT170 tube.
  • The Soul 170i outputs 130 watts in Ultralinear mode or 75 watts in Triode mode, offering different sound signatures.
  • Features include RCA and XLR inputs, subwoofer outputs, and user-friendly bias controls for the KT170 tubes.
  • Built with premium parts, point-to-point wiring, and a high-quality toroidal power transformer for optimal performance.

All specifications

Physical characteristics
Weight 38.7 kg
Dimensions (HxWxD) 238 x 430 × 448 mm
Technical specifications
Power output TR 75W+75W (Triode Mode); UL 130W+130W (Ultralinear Mode)
THD 0.2% (1kHz)
Frequency response 5Hz~50kHz (-3dB)
S/N Ratio 97dB
Input sensitivity 420mV (Integrated); 1300mV (Pre-IN)
Input impedance 100k
Output Impedance 4,8
Maximum power consumption 680W

Background

In 2018 Cayin has developed its 25th Anniversary model A-845PRO which got great welcome and feedback from the market from its extreme excellent sound performance to its elegant cosmetic design.  With the sucess of the model we have been thinking to expand the range and have a new reference line of products for Cayin.  Thanks to Tungsol and Mike from New Sensor because they just annouced KT70 new flagship tube which give us a chance to realize our thoughts.  That is how Soul 170I starts.

Product Description

Soul 170I is designed on basis of Tungsol KT170 Power Tube. It outputs 130 watts Power in Ultralinear Mode or 75 wats power in Triode Mode per channel. Designed in Class AB Push-Pull Soul 170I takes two pieces of powerfull KT170 tube per channel. All tube Integrated with 22DE4 Tube Rectifier for Power supply, ECC83S voltage amplification stage, 6SN7 driver stage and KT170 output tubes. Following the design concept of Cayin Soul 170I offers two operation modes: Triode and Ultralinear. As you can see from above for these two different modes the output power are different. However it is not more than that. Change the output mode you will get a different sound signature instantly. Triode Mode is Tendering, Rich in Harmony, Smooth and Soft. Ideal for Vocal and Instrumental Music. Ultralinear Mode has power and extension. Clean with energy. Ideal for music has punch and dynamic and at such mode it offers excellent control ability.

Three pairs of line inputs, one pair of Balance Input and one pair of Pre-In are located on the rear panel of the amplifier. In the Soul 170I not only the Single Ended RCA inputs provided but also the XLR Balance Input. Different from other inputs Pre-In offers you a possibility to connect to some other Preamplifier so that you can the Soul 170I as a power amplifier. One pair of Sub Output is located on the rear so that if you want to get more Bass you can use the interconnector to connect with your Subwoofer system.

The ‘Pre-In’ offers the listener the possibility to connect another high end Pre-Amplifier, so that you can use the Soul 170i as a stand alone power amplifier. Uniquely, Cayin have integrated one pair of dedicated subwoofer Outputs on the rear, allowing for the implementation of a high quality subwoofer into the set-up – this opens up additional opportunities to expertly extend the bass performance for the customers set-up. Cayin also offer a set of fully balanced XLR inputs on the Soul 170i, again pushing the boundaries in high end valve amplifier design, and therefore offers the listener the ability to run a fully balanced set-up through the entire audio system. Speaker terminals are offered for 4 and 8 ohm speakers and are located on the rear panel of the amplifier. Simple and easy user bias controls for the KT170 Power Tubes have been implemented for bias adjustment with a convenient and very accurate meter added to the top plate to allow you to monitor and adjust the bias of the KT170’s with ease. A quite beautifully crafted anodised solid aluminium front panel has been used, with a fully vented chassis giving a luxurious finish. The Cayin Soul 170i, 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. Special high voltage fuses are used in the amplifier for additional protection and are conveniently located on the top plate close to the power tubes. In case of an external power surge or other issue which may otherwise result in the failure of a tube, the fuse will react first, giving additional protection to the overall design.

Premium Parts are used throughout

  • Alps Volume Control.
  • Porcelain Tube Sockets.
  • Audio Grade Capacitors.
  • 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 170i 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 loudspeaker. This carefully matched output design , allows the Cayin Soul 170i 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 170i can also memorise the last operation of the unit once switched off.

Speaker terminals for 4 and 8 ohm speakers are located on the rear panel of the Amplifier

User bias controls for KT170 Power Tubes have been used for bias adjustment and one meter has been added to the top plate to allow you to monitor bias with ease. Anodized aluminum front, fully vented chassis with excellent gorgeous finish, and wood side panels give you a product of art in front of your eyes. Soul 170I, same as other products from Cayin emplys Point to Point wiring. The entire circuitry including signal path is painstakingly hand wired with heavy-gauge cable by craftsman. Soft-start circuit and High Voltage Delay to protect the amplifier for extended life of sensitive components. High Voltage Fuses are used in the amplifier for protection which are located on the top plate close to the Power tubes. In case there were failure of tubes the Fuse will react first that you can know easily where the issue is. Premium Parts: Alps volume control, Porcelain Tube Sockets, Audio grade capacitors and carbon film resistors, Toroid transformer for power supply, Wide bandwidth EI output transformer, etc. Output transformers are the most important part of any tube amp. They determine how low the bass will reach and how high the top end goes. Cayin output transformers are custom-designed, wound in-house, and massive. Enable compliciated multi-layer winding and multiple impedance output to match with different needs. Carefully matched output will sound Blanced, natural and realistic across the complete audio spectrum. Custom designed Toroid Power transformer with strong power production and extreme low hum level provides a reliable performance and extradonary control. Standard with remote control, Soul 170I can memorize last operation of the unit once switched off.

Leave a review