Ayon Audio Spark

Excellent condition Demo unit 

Spark III

Manufacturer's Description:

Ayon is pleased to introduce the Spark III, a substantial advancement of our already highly regarded Spark II model offering. The Spark III is our “superb value” single-ended triode integrated vacuum tube amplifier for real music lovers. Low distortion, outstanding dynamics, holographic soundstage, detailed, fast and precise low frequency performance.

We have increased the power supply energy storage to over three times and incl. an auto bias system for the 6C33. The advantage is more transparent and livelier reproduction of musical performance.
Features & Design
Full-featured single-ended tube stereo integrated amp or pure power amplifierPSE - pure Class-A triode vacuum tube-circuit designThe 6C33 tubes are ideal for audio power application due to their low plate impedance and high current capability.Ideal also for more difficult loudspeaker loadsVacuum TubesThe 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 PathWe believe that the simplest circuits work best together with the shortest signal path. That is why our SE-Triode amplifiers to date have used single-ended pure class-A circuitry. 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
    •    0dB negative feedback  (of any kind)
    •    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
    •    High quality parts throughout

Power SupplySingle ended amps are more susceptible to power supply aberrations than push-pull amplifiers. 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 and it is a critical attribute for a single-ended amplifier. 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
    •    Dual choke filtered power supply for 6C33
    •    Dual choke for pre and driver stage
    •    Separate and isolated power supplies over each stage of amplification  
    •    Regulated DC filament supplies with soft start
    •    AC power line filter to avoid noise and hash from entering into the unit.
    •    High capacitance energy storage.
    •    Current in-rush limiting
    •    Auto sequencing - Power on cycle completes in 1 minute

Dual Grounding SystemThe modification of the grounding topology leads to increased rejection of noise from the power supply and other areas. The dual grounding topology used in all of our amplifiers is quite unique to the whole hi-end tube amplification industry. Such extensive topology provides for quieter backdrop for which the music can unfold in its entirety. It further establishes the quick and controlled bass response and the full bodied expression of the high frequency. The ground leg of the signal has not been neglected and given meticulous attention in its implementation. The importance of proper grounding cannot be over emphasized.
    •    Ground switch
    •    Central one-point star earth grounding
    •    Dual grounding system (switchable)

Output TransformerThe 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

ComponentsThe 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, premium quality passive components used in all applications 
    •    High speed  & high quality audiophile grade coupling capacitors
    •    Teflon tube sockets with beryllium- copper spring pins, custom made by Ayon
    •    High quality – binding posts
    •    Ayon – RCA input jack
    •    Teflon isolated - internal wiring
    •    Silver-cupper matrix - internal signal cable
    •    Gold-plated industrial grade PCB
    •    All wiring to the circuit boards is done with the use of special pluggable pin- connectors. This is done for ease of repair should ever the need arise.

High Grade Speaker Binding PostsThe new ayon gold plated solid body speaker binding posts provide performance levels that are truly in the very High End. The solid body construction ensures that there is no gap or breach in the flow of electrons. The gold plating provides for superior contact and resistance to oxidation. These binding posts are chosen primarily for their sonic performance, edging out even more expensive counterparts.Mechanical ConstructionThe 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
    •    Backlit “ayon” logo
    •    All front & rear panel descriptions are engraved
    •    4 line inputs & 1 direct input - for pure power amp operation
    •    Ground switch
    •    AC phase polarity control indicator 
    •    Volume & Mute function - RC
    •    Metal remote commander
    •    Chassis finish: black / chrome

Specifications

Amplifier

Ayon Spark III

Class of Operation

Single-Ended Triode, Pure Class-A

Tube Complement

2 x 6C33

Load Impedance

4 & 8 Ohms

Bandwidth

10Hz - 50kHz

Output Power

2 x 20 Watt

Frequency Response

12 Hz – 35 kHz

Input sensitivity for full power

600 mV

Input Impedance at 1 kHz

100 KΩ

NFB

0 dB

Volume Control

Potentiometer

Remote Control

Yes

Inputs

4x Line, 1 x Direct In,

Output

Pre out

Dimensions (WxDxH) cm

46x34x26 cm

Weight

31 kg