× HomeProducts Gallery Find a Dealer Contact Us
  • slidebg1
    Dionysos
    The heart of the system
    Control Amplifier with remote
  • slidebg1
    Dionysos
    The heart of the system
    Control Amplifier with remote
  • slidebg1
    Dionysos
    The heart of the system
    Control Amplifier with remote
  • slidebg1
    Dionysos
    The heart of the system
    Control Amplifier with remote
Dionysos is a remote controlled single triode transformer coupled line level amplifier - the center of operations for your audio system.
Features
  • Accepts both balanced and unbalanced input signals on RCA and XLR connectors
  • Switches ground plane with input selection preventing ground loops
  • Programmable ground arrangement for large systems
  • Dual balanced and unbalanced output for bi-amp
  • Home Theatre bypass feature for integration in Home Cinema systems
  • Shunt regulated constant current PSU for lowest noise and best dynamic behaviour
  • Choke input rectifier for lowest switching noise
  • Programmable absolute phase per input and accessible via remote control
  • Stepped volume control for perfect repeatability of level setting
  • Inductive volume control for best sound quality
  • Custom vacuum encapsulated signal relays for ultimate sound and reliability
  • Modular construction
  • Microprocessor controlled
  • Interlocking solid aluminium chassis
  • The control amplifier is still the centrepiece of each high-end audio system. It is responsible for source selection, signal conditioning and volume control.
    It has to match the output of your source to the input of your power amp. Its output stage must be able to drive any power amplifier through any length of cable with optimal quality via balanced and unbalanced lines.
    The input of our pre-amplifier provides optimal loading for the source component to develop its full potential, allowing it to extract the maximum amount of information while keeping all noise picked up on the way out of the signal chain.
    During our research and evaluation of the various approaches we settled for a transformer. It provides complete isolation from the rest of the system, rejects common mode signals much better than any active solution, stops EMI/RFI and ensures a truly balanced differential input, while having very low DC resistance.
    The volume control of a pre-amplifier has to adjust the level of the input signal to the value required by the power amp without burying in noise the low level information and transferring enough power to properly drive the amplification stage without affecting its operation.
    Potentiometers and resistor ladders, as sophisticated as they might be, have a fundamental flaw. They operate by unnecessarily dumping the signal across a resistor. It is like driving a car with fixed engine power (signal) and adjusting the speed with the brakes (resistor)!
    Our solution is fundamentally different and as simple as it gets. We use a transformer with various winding ratios and we switch between them. In the above example it will operate as a gearbox, transferring all the power of the engine at all speeds. In other words CONTROL.
    Our gain stage is realized by the use of a single low noise tube loaded with a step down transformer, making the output of the control amplifier low impedance, DC free, truly balanced, isolated from noise sources and decoupled from other components in the system, providing an absolute optimum driving signal for the following power amplifier's input stage.
    To further reduce the vanishingly low noise floor of the unit below a certain volume setting the active circuit is disabled and the attenuator is connected directly to the output providing low impedance noise free signal.
    The power supply of Dionysos uses a choke input rectifier arrangement. This eliminates switching noise and any other disturbance that comes before the choke.
    All this is governed by a microprocessor switching to the appropriate combination of relays and monitoring the status and incoming command.
    The chassis is milled in house from solid plates of different thickness aluminum that are interlocked together to form a ring like structure.
    We have the power supply mounted on the left sidewall of this structure and the signal transformers on the right side, crossed by two semi-flexible bars on which the motherboard and its heat sink are attached via vibration isolating Gel bushings.
    The top and bottom plates link all sides of the ring with the flexible bars and the feet made from carbon doped plastic on flexible screws.
    There are no screws visible anywhere on the chassis. And the chassis feels like a solid block.
    Technical Specifications Inputs 4 pair unbalanced RCA connectors,
    2 pair balanced XLR connectors
    Outputs 2 pair unbalanced RCA connectors,
    2 pair balanced XLR connectors
    Volume control range Minimum gain: -46dB
    Maximum gain: +18dB
    Attenuation steps 32 Power supply 115 or 230V Power consumption 45W Weight 15 Kg Dimensions 432W x 400D x 120H mm Tube compliment 1 x 6H6П (6N6P)amplification
    Available Finishes Silver Anodized Aluminum Black Anodized Aluminum
    Reviews Thrax Audio Teres review Thrax Dionysos und Heros Review by: HiFiStatement.Net
    June 2017
    Die in Sofia beheimatete Firma Thrax hat sich in kurzer Zeit einen ganz ausgezei-chneten Ruf unter Audio-philen erarbeitet. Dirk Sommer hat vor einiger Zeit der Phonostufe Orpheus von Thrax gar „Weltklasse-Fähi-gkeiten“ bescheinigt. Ich habe deshalb sofort...
    Thrax Audio Teres review Thrax Audio Dionysos Review by: A. Wenderoth
    June 2016
    Rumen Artarski wurde 1970 in Sofia geboren, studierte Elektrotechnik in Kopenhagen, war Toningenieur in England und machte eher nebenbei Audio-Entwicklungen für Freunde. Nachdem er 1998 nach Sofia zurückgekehrt war, gründete er Audio...
    Thrax Audio Teres review Thrax Audio Maximinus + Dionysos + Spartacus Review by: Wojciech Pacuła
    July 2009
    The preamplifier that he sent for a review was outstanding, very much to my liking. Built with a heart, it looked like a pure-bred product from a large manufacturer that has for years mastered the production process and now can focus solely on the sound. The review...
    Thrax Audio Teres review Thrax Audio Maximinus + Dionysos + Spartacus Review by: A. Dziadowiec
    July 2014
    I have been waiting for four years to review the whole Thrax Audio system, which has recently been expanded to include a DAC. Now we have a complete audio system, from the Maximinus D/A converter, through the Orpheus phono stage and the Dionysos preamplifier...
    Thrax Audio Teres review Thrax Audio Maximinus + Dionysos + Heros Review by: Srajan Ebaen
    April 2013
    From ebulliently machined bead-blasted aircraft-grade aluminium cases to complex power supplies and advanced transformers from the likes of Hashimoto, Lundahl, Plitron and Tamura/Tamradio, Thrax strategically bypasses the hunters and punters of...
    Thrax Audio Teres review Thrax Audio Dionysos Review by: H&H
    December 2013
    ...
    Thrax Audio Teres review Thrax Audio Dionysos Review by: Paul Messenger
    Sept 2012
    I’m ashamed to say that the name Thrax meant nothing when I first heard it. I was put straight and suitably embarrassed when told that it was a reference to Thrace, an ancient world kingdom to the north of Greece that more or less corresponds to Bulgaria today...
    Thrax Audio Teres review Thrax Audio Dionysos Review by: Wojciech Pacuła
    July 2009
    Preparations for the test took me and the company Thrax Audio more than half a year. When I saw their products for the first time during the High End 2010 in Munich, I knew I need to listen to them. Those were big tube monoblocks, with triodes in the output stage...
    Thrax Audio Teres review Thrax Audio Dionysos Review by: The Audio Beat
    July 2010
    Thrax Audio philosophy and approach strongly correlates with my inner clock and how things should be made according to my understandings and feelings about ultra high-end audio. From tube rectifiers, chokes, TVC's, best materials being used...
    Thrax Audio Teres review Thrax Audio Review by: Jacek Pazio
    December 2015
    Najwyższy czas przyjrzeć się samemu, odpowiedzialnemu za całe zamieszanie zestawowi. Dzielony system bułgarskiego Thrax’a w skład którego wszedł przedwzmacniacz Dionysos wraz ze 100 watowymi, A-klasowymi, hybrydowymi...
    Thrax Audio Teres review Thrax Audio Review by: Paul Messenger
    February 2013
    XXXThrax Audio philosophy and approach strongly correlates with my inner clock and how things should be made according to my understandings and feelings about ultra high-end audio. From tube rectifiers, chokes, TVC's, best materials being used...
    Customer Service Warranty and Registration Technical Support Contact Us Address: 251 Okolovrasten Pat 1766 Sofia, Bulgaria Phone: +359 2 988 9555
    © 2017 Thrax Audio Ltd. All Rights Reserved.
    × Contact Us
    Your Name:
    Phone:
    E-mail:
    Please type in the 5 character security code:
    Comments:
    SEND
    × Warranty and Registration
    Your Name:
    Phone:
    E-mail:
    Product Name:
    Serial #:*
    Location Purchased:
    Date Purchased:
    Please type in the 5 character security code:
    SEND
    × Technical Support
    Your Name:
    Phone:
    E-mail:
    Product Name:
    Serial #:*
    Location:
    Please type in the 5 character security code:
    Explain the issue:
    SEND