Ayon Spheris

"A new masterpiece"

The Spheris preamplifier sets a new standard for natural musical performance, offer wide bandwidth, extremely low distortion, colourful, superior dynamic range and a three-dimensional holographic soundstage.


Features

  • 2 Chassis full-featured class A single-ended & true balanced triode-pentode vacuum tube stereo preamplifier

  • Unique new pure vacuum tube-circuit design and maintains an exceptional bandwidth that extends well beyond 500 kHz

  • DHT
  • 0 dB negative feedback
  • Purist tube design (no any transistor) and shortest possible signal paths
  • Very low output impedance for driving very long runs interconnect to an amplifier, and any tube or solid state power amp

  • Ultra selected, absolute best quality passive components used in all applications
  • Central one-point earth grounding
  • Fully hand assembled to insure the highest level of craftsmanship
  • Limited production
  • The beautifully crafted aerospace grade aluminium-brushed, anodized and anti-vibration resonance, non-magnetic chassis shields effectively against RFI and EMI.

  • Backlit front panel displays indicate level attenuation & input selection
  • All front & rear panel descriptions are engraved
  • 3 Platinum knobs (selectors, volume) with backlit glass pivot
  • The aluminium feet are resonance absorbing types
  • Chassis finish: black

  • Elma/Swiss - 4 channel / precision 24 position stepped attenuator volume control with 192 Welwyn ultra linear metal-film resistors 0.1%

  • This stepped volume control has gold plated contacts and a channel balance within +/- 0.05db (custom-made for ayon)

  • Elma/Swiss - Input selector switches
  • Selector switch engages relays located near RCA jacks to switch all inputs
  • Gold-plated industrial grade PCB
  • Audio circuit boards are anti- resonance-damped mounted
  • Silver solder used for the best electrical connection
  • 4 Special tubes for stereo line-amplification (tube life min. 10000 hrs)
  • 4 Special tubes for stereo phono-amplification (tube life min. 10000 hrs)
  • Passive RIAA equalization with 0dB feedback
  • Very low noise enables full use of cartridges down to 0.1mV
  • High-Current filament regulator for signal tubes and soft start automatic
  • Special vibration dampening system for all signal tubes
  • Lundhal/Sweden - 2 MC phono transformer
  • Lundhal/Sweden - 2 Balanced splitting transformer between single-ended and balanced input

  • Tantalum - The best sounding precision special resistors are used everywhere, best resolution and lowest noise

  • Mundorf/Germany - Supreme/silver-gold capacitors
  • Rifa - Long life capacitors
  • DC-Power filter
  • Ayon - Premium internal signal cable uses ultra pure, soft annealed copper and super low loss insulation.

  • Remote Control for Volume
  • WBT/ Germany - RCA input jacks
  • Neutrik/Swiss - XLR chassis connectors

EXTERNAL AC~REGENERATOR - TUBE POWER SUPPLY

The Spheris AC~ Regenerator offers stable, regulated and purified AC power regardless of the incoming AC line quality. This power supply provides a lowered noise floor, more liquidity, better spatial three-dimensional imaging, greater focus, richer colours, and decreased glare & haze.


Features

  • Tube regulated power supply with built in AC ~ Regenerator
  • Regenerated AC power and low distortion sine wave
  • Superior noise reduction
  • Fully hand assembled to insure the highest level of craftsmanship
  • Limited production
  • The beautifully crafted aerospace grade aluminium-brushed, anodized and anti-vibration resonance, non-magnetic chassis shields effectively against RFI and EMI.
  • All front & rear panel descriptions are engraved
  • The feet are resonance absorbing types
  • Chassis finish: black
  • AC phase polarity control indicator
  • AC voltage and frequency meter
  • DC-Power filter
  • Voltage adjustable (100V to 115V and 200V to 230V)*
  • Frequency adjustable (50Hz, 60Hz & 120Hz)*
  • Tube-regulated & stabilized (RCA 6AX5GT rectifier tubes)
  • Lundhal/Sweden - Dual choke power supply
  • 2 large noiseless toroidal power transformers are encased, excellent damped and RFI/EMI ultra-shielded (custom-made for Ayon )

Specifications

Tube Preamplifier

Ayon Spheris

Class of Operation

Pure Class A, Triode-Pentode

Tube Complement Preamp-Line

4 x Siemens C3M

Tube Complement Preamp-Phono

4 x Siemens C3M

Maximum Output (at 1 khz )

40V rms

Input Impedance

100 KOhm

Output Impedance

30 Ohm

S/N ratio

98 dB

Frequency Response / Line

1Hz - 500kHz

Harmonic Distortion (at 1V ) Line

0.001%

Harmonic Distortion (at 1V ) Phono

0.01%

Input

4 x RCA, 1 x XLR, 2 x Phono MC

Output

2x RCA, 1x XLR

Power consumption

65 Watts

Dimensions Pre (WxDxH) cm

48x43x14 cm

Weight (Pre & Power Supply)

20 kg

AC Regenerator - Tube Power Supply

Ayon Spheris

Tube Complement Power Supply

2 x RCA 6AX5GT

Power consumption

10 Watts

AC Regenerator

max.150W

Voltage adjustable*

100V to 115V and 200V to 230V

Frequency adjustable*

50Hz, 60Hz, 120Hz

Start up voltage & frequency

230V / 50 Hz

Dimension (WxDxH) cm

48x43x14 cm

Weight (Power Supply)

25 kg

Specifications subject to change without notice;
* Pre-adjusted by Ayon factory

Pictures