Ayon Spirit SE II KT150 Integrated Amplifier

The Spirit SE II represents a dramatic rethinking of economic Single-ended vacuum tube integrated amplifier design.  The Spirit SE II integrated amplifier combines neutrality, realistic dynamics and power projection, true musicality with high resolution.  Perfect finish, elegant discrete design and outstanding sonic performance make the “Spirit SE II” unique, setting a new price-to-value standard in its class.

Features

Features & Design

Full-featured pure class-A tube stereo integrated amplifier

KT150 or KT88 power output tubes

Vacuum Tubes

The choice of signal and power tubes have a significant influence on the sound and hence on the inspiration and joy of listening. This is not only the decision between good and bad tubes but finally the interaction of the different types of tubes and their combination that are used in the various Ayon amplifiers.

Signal Path

We believe that the simplest circuits work best together with the shortest signal path. The shorter the signal path is, the less possibility of sonic degradation from various sources, including the wire itself. Even on the circuit boards, the copper traces are kept to a very minimum length. The completely redesigned circuit board provides a more straightforward and direct approach to the signal paths.

Logical sequenced soft-start power up for extended tube life

Power tube and electronic protection circuit system

Ultra short signal path

Simplest direct circuit path for purest musical sound and high reliability

No solid state devices in the signal path

High current and low impedance design that operates tubes in the best areas their curves

Minimal discrete wiring for optimum signal propagation

Automatic and manual bias adjustment

No followers or buffers in the signal path

Quality parts throughout

Selector switch engages relays located near RCA jacks to switch all inputs

Power Supply

The power supplies have been further refined with new components and enhanced AC line noise filtration. Separate power transformers, chokes and filters provide total isolation between the input and output stages which makes this a pure power source. We also use electrolytic capacitors with much larger storage capacity to make up for the loss in filtering when using resistors in lieu of inductors.

Low noise –insulated power transformers

Power transformer is encased, excellent damped and RFI/EMI shielded

Innovative power supply provides a high speed energy delivery on transients

Choke filtered power supply

Separate and isolated power supplies over each stage of amplification

High current filament-regulator for pre and driver tubes

Regulated DC filament supplies with soft start

AC power line filter to avoid noise and hash from entering into the unit

Current in-rush limiting

Auto sequencing – Power on cycle completes in 1 minute

Output Transformer

The super-wide bandwidth output transformer’s major strength is that it can deliver the current in the bass, while at the same time maintaining the speed in the high frequencies, dramatically improving the square wave response of the amplifier. The effect is a much more natural and relaxed sound with much better clarity, resolution and fluidity.

Super-wide bandwidth high performance output transformer

High efficiency with low insertion loss for optimal current and voltage transfer

Multiple tight layering and coupling for extended frequency response

Output transformers are sealed with an anti-resonance compound material

Components

The type of parts used therefore must have a synergistic relationship to the circuit they are placed in. It is this relationship of which type of part to use where, that ranks our products apart from the mass.

Selected, quality passive components used in all applications

High speed  & high quality audiophile grade coupling capacitors

Special tube sockets with beryllium- copper spring pins, custom made by Ayon

High quality – binding posts

High quality – RCA input jack

Special isolated – internal wiring

Copper matrix – internal signal cable

Gold-plated industrial grade PCB

Mechanical Construction

The high-grade aluminum chassis impart a richer, more lustrous tonality with a cleaner background and less hash and grain. All brushed anodized anti-vibration-resonance and non-magnetic chassis’s are fully hand assembled to insure the highest level of craftsmanship.

Improved heat ventilation chassis

Custom-made machined control knobs

The aluminium feet are resonance absorbing types

All front & rear panel descriptions are engraved

4 line inputs

Volume & Mute function – RC

Metal remote commander (option)

Chassis finish: black / chrome

Specifications

Amplifier Ayon Spirit SE II

Class of Operation Single-Ended, Class A

Tube Complement 2 x KT150

Load Impedance 4 & 8 Ohms

Bandwidth 15Hz – 50kHz

Output Power 2 x 15 Watt

Input sensitivity for full power 250mV

Input Impedance at 1 kHz 100 KΩ

NFB 0dB

Volume Control Yes

Remote Control Yes (option)

Inputs 3x Line In, 1 x USB-DAC

Conversion rate for USB-DAC (option) Up to 384kHz / 24 bit & DSD256

Power consumption 75W

Dimensions (WxDxH) cm 30x43x23 cm

Weight 22 kg

Specifications subject to change without notice