Orthos - Class A

The Orthos monoblocks provide true balanced or single-ended operation combined with the ability to deliver more than 230 watts per channel. Its powerful and fast bass, expressive and natural midrange, extended high frequencies and dynamic output power result in outstanding life-like performance free of compression effects or dynamic limitations.


Features

  • Full-featured true balanced vacuum tube mono power amplifier
  • Switch able between pentode and triode mode
  • KT88 (Golden Lion) power output tubes
  • 6H30 signal & driver tubes
  • Timer warm up circuit for all tubes, extends tube life
  • Choke filtered power supply for ( KT88 )
  • Dual choke for pre and driver stage (6H30)
  • Automatic power tube protection circuit system
  • 0dB negative feedback
  • 2 separate power transformers (anode - high voltage and filament - low voltage)
  • 3 separate high current filament-regulators for pre and driver tubes
  • Power transformers are encased, excellent damped and RFI/EMI shielded
  • Innovative power supply provides a high speed energy delivery on transients
  • High performance & efficiency output transformer
  • All transformers are sealed with an anti-resonance compound material
    Selected, premium quality passive components used in all applications
  • New ceramic precision tube sockets with beryllium spring contacts (custom-made )
  • High speed MKP capacitors
    Shortest possible signal paths
  • Gold-plated industrial grade PCB
  • Teflon isolated - internal wiring
  • Ground switch
  • Gain input switch  -6dB
  • Cupper-silver matrix - internal signal cable
  • Central one-point star earth grounding
  • External static bias adjustment – rear panel
  • Fully hand assembled to insure the highest level of craftsmanship
  • Alu-brushed anodized anti-vibration-resonance and non-magnetic chassis
  • Backlit “ayon” logo – front panel
  • Triode mode – LED indicator – front panel
  • Bias analog-instrument with mA scale
  • All front & rear panel descriptions are engraved
  • Gold-plated heavy duty binding posts and input jacks
  • DC-Power filter
  • AC phase polarity control indicator
  • Chassis finish: black / chrome


Specifications

Amplifier

Ayon Orthos

Class of Operation

Triode or Pentode mode

Tube Complement 

8 x KT88, 3 x 6H30

Load Impedance

4 & 8 Ohms

Bandwidth

8Hz-70kHz

Output Power / Pentode mode

1 x 230 Watt

Output Power / Triode mode

1 x 150 Watt

Peak Output Power / Pentode mode

1 x 300 Watt

Frequency Response

15 Hz - 35 kHz / 0 dB

Frequency Response

10 Hz - 60 kHz / -2.5 dB

Input Impedance at 1 kHz

100K Ohm

Input sensitivity ( full power )

400mV

S/N ratio at full power

98 dB

Hum

0,003 V

NFB

0dB

Inputs

RCA & XLR

Dimensions (WxDxH) cm

35x53x25 cm

Shipping dimensions (WxDxH) cm

60x80x48cm

Weight

41 kg

Shipping weight

55 kg
Specifications subject to change without notice


Pictures