Trilogy Audio 933 Headphone Amplifier

Trilogy Audio 933 Headphone Amplifier
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 Trilogy Audio 933 Headphone AmplifierTrilogy Audio 933 Headphone Amplifier 
£2,795.00
(£2,329.17 Exc. VAT)
  

In Stock

Free U.K. Delivery

Availability

Enquire now to purchase
01892 532 995

Free standard UK delivery
  • High current design
  • Two inputs.Separate
  • Choke input power supply
Secured by Thawte

Why buy from us?

Trilogy Audio 933 Pure Class A Single Ended Headphone Amplifier (2 box)

The task of moving the delicate membrane of a headphone driver is a very different to energising the reactive complex impedance of a multi driver loudspeaker. With much less mass to move and without the masking of listening environment and room interaction, the small signal integrity of an amplifier becomes even more critical than that of a regular power amplifier. A different approach to design is required. This has led us to a very different solution to most accessory mass market offerings.

The Trilogy 933 is a clean sheet design with the same natural presentation and vibrant musicality found in our award winning pre and power amplifiers. Its a subtle, but crucial distinction: we like to think of the Trilogy 933 as an amplifier for headphones, not a headphone amplifier. The svelte amplifier enclosure is machined from a solid billet of aluminium. Its hefty 1.3kg mass provides outstanding physical and electrical isolation for each of the active circuit elements as well as a stable thermal base for heat-shrinking the output devices.

The 933's amplifier is pure single ended Class A, employing active constant current sources. Each channel has just one continuously biased output device. The output waveform is therefore completely free from crossover distortion and has excellent small signal integrity. DC coupling removes capacitors in the signal path, enhancing detail even further. The discrete topology is implemented with carefully selected audio grade components to deliver amazing resolution and drive capability for any high quality headphone.

The improved external power supply can be remotely sited to keep stray electromagnetic fields at bay. A generously rated, faraday screened transformer and soft recovery rectifier diodes are complemented by a custom wound input choke. The choke input topology smooth's out the current pulses demanded by the premium Mundorf reservoir capacitors, much like a flywheel, keeping the power supply's dynamic noise very low.

The rear panel offers the user two selectable stereo inputs via high quality gold plated phono connectors.

The 933 can stand alone as the cornerstone of a headphone based system or connect easily to any existing preamplifier.

Volume, mute and balance which are all accessed by the supplied remote control only.

The front of the amplifier has an arc of LEDs which conveniently display the chosen settings which are stored for the next time the 933 is powered up.

The amplifier is monitored for safe area operation at all times and is automatically muted for power on and off. In combination the 933 elements form a whole greater than the sum of its parts. The Trilogy 933’s performance bears all the traits you would expect from a full sized Trilogy amplifier: coherence, precision, resolution and effortless musicality. The Trilogy 933 is truly a class leading amplifier for headphones.

Available in natural silver as standard. Extra cost finish options are our standard paint finishes, and almost unlimited custom colours through our Chameleon System.

Shipping typically 2-3 days

Several years in the making, this latest generation of Trilogy Audio Systems components remain true to Trilogy’s original core values.

Engineered from the inside out with real heart and soul behind them, they will provide lasting satisfaction, making music for your pleasure.

Trilogy understands the vices and virtues of both valve and solid state without prejudice. Through intelligent design, the appropriate technologies are applied with one goal - outstanding musicality.

Each Trilogy product has the same winning formula - an uncompromising approach to true excellence.

The task of moving the delicate membrane of a headphone driver is a very different to energising the reactive complex impedance of a multi-driver loudspeaker. With much less mass to move and without the masking of listening environment and room interaction, the small signal integrity of an amplifier becomes even more critical than that of a regular power amplifier.

The Trilogy 933 is a clean sheet design with the same natural presentation and vibrant musicality found in our award winning pre and power amplifiers. Its a subtle, but crucial distinction: we like to think of the Trilogy 933 as an amplifier for
headphones, not a headphone amplifier.

Machined from a solid billet

The svelte amplifier enclosure is machined from a solid billet of aluminium. Its hefty 1.3kg mass provides outstanding physical and electrical isolation for each of the active circuit elements as well as a stable thermal base for heat-shrinking the output devices.

Pure single-ended class a

The 933’s amplifier is pure single-ended Class A, employing active constant current sources. Each channel has just one continuously biased output device. The output waveform is therefore completely free from crossover distortion and has excellent small signal integrity. DC coupling removes capacitors in the signal path, enhancing detail even further. The discrete topology is implemented with carefully selected audio grade components to deliver amazing resolution and drive capability for any high quality headphone.

Separate choke input power supply

The DC for the regulators is derived from a separate power supply housed in a brushed stainless steel enclosure. This can be placed remotely to keep any magnetic fields well away from the sensitive active circuitry. The custom mains transformer is designed with a low operating current density and a copper
faraday screen. It feeds the main Mundorf reservoir capacitors through a bespoke inductor, forming a true choke input supply for absolute minimum electrical noise.

Independently housed channels

The rear panel offers the user two selectable stereo inputs via high quality gold plated phono connectors.

Flexibility without compromise

The 933 can stand alone as the cornerstone of a headphone based system or connect easily to any existing preamplifier.

Optimum matching

Volume, mute and balance which are all accessed by the supplied remote control only. The front of the amplifier has an arc of LEDs which conveniently display the chosen settings which are stored for the next time the 933 is powered up. The amplifier is monitored for safe area operation at all times
and is automatically muted for power on and off.

A whole greater than the sum of its parts

In combination the Trilogy 933 elements form a whole that is far greater than the sum of its parts.

Created for headphone aficionados everywhere, the Trilogy 933 bears all the traits you would expect from a full sized Trilogy amplifier: coherence, precision, resolution, transparency and a level of musicality never before heard through headphones.

  • Size (933 Amplifier):  150*220*38 (W*D*H)
  • Size including connectors (933 Amplifier):  150*235*38 (W*D*H)
  • Weight (933 Amplifier):  1.8 Kg
  • Size (PSU):  132*225*57 (W*D*H)
  • Weight (PSU):  2.85 Kg
  • Packaged Size (combined):  330*290*195
  • Packaged Weight (combined):  5.7 Kg
  • Power consumption:  22 Watts
  • Inputs:  2 Stereo line 4 RCA phono sockets
  • Input Impedance:  ≥20KOhms
  • Gain (max):  19dB
  • Frequency response:  15-120KHz +/- 0.5dB
  • Output impedance:  ≤ 3 Ohms
  • Output Power:  800mW into 300 Ohms, 250mW into 60 Ohms
  • Distortion (THD): ≤ 0.05% 10mW into 300 Ohms
  • Signal to Noise Ratio: ≥ 85dB A Weighted
  • Phase:  Phase correct (non inverting)
 Specification subject to change

UK Delivery

  • FREE delivery via DPD Local By 12pm on orders to value over £300, including one hour delivery window service 'Predict & Follow My Parcel'.
  • Royal Mail Special Delivery By 1pm costs between £5.00 - £10.00 on orders to value under £300, dependent on weight.
  • Saturday or Sunday delivery available upon request for supplemental charge.

EU Delivery

  • £25 delivery charge 'Flat Fee' via DHL Europe by Road service (3-5 days) which provides comprehensive tracking of shipments online.
  • £60 delivery charge 'Flat Fee' via DHL Europe by Air service  (1-2 days) which provides comprehensive tracking of shipments online.

USA & Canada Delivery

  • Services based on your order being shipped to the U.S. and Canada are calculated as follows:
    £100 delivery charge 'Flat Fee' via DHL international 'Day Definite' service per parcel.
    Receiver is responsible for the payment of local Duties and Taxes.

Exceptions

  • Not all products are available for order into Europe, USA & Canada

WARRANTY

  • Full manufacturer's warranty on all new purchases. Standard warranty is typically 2 years with some goods coming with 6 years manufacturer's warranty.
  • Goods purchased in UK and EU are covered by the Consumer Contracts Regulations.

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