Amplifier

Opus

"The OPUS is the direct result of an intense 35 years fascination with music recording and reproduction to perfect the most transparent, reference calibre “monitoring” preamplifier to complement both the finest domestic audio playback & professional recording systems in the world. Using technology borrowed from Aerospace and Formula 1, the design also reflects the extraordinary advances that made over the last 15 years in modelling and simulation software."

FEATURES

Opus

The PCB software he uses not only lays out the boards, but also allows schematic based simulations which can test [or verify] the PCB’s signal integrity displaying Reflection and Crosstalk Analysis.

Not content with a strict engineering approach, Metaxas started working on creating the ultimate library of test recordings using three “Metaxas-modified” portable Swiss Stellavox to record and film over 300 live acoustic concerts.

To house this cutting-edge technology, a striking “organic” case design was 5-axis CNC machined from a solid block of Aircraft Aluminium [or Copper or Titanium] to shield and mechanically ground the low-level signals.

DETAILS

FEATURES

PAPPILION

All switches, attenuators and sockets/plugs [hardware] are of the highest possible quality, many meeting or exceeding military specifications.

Additional “Plug-in modules’ allow almost infinite possibilities for the addition of LP phono RIAA equalized playback, microphone preamplification or Digital recording [ADC] and Playback [DAC].

In its basic format it comes with a “Mainframe” and separate AC Mains Isolated Power Supply connected by two aerospace-grade umbilical cords.

DETAILS

SPECIFICATIONS

Opus

FREQUENCY RESPONSE: DC - 10MHz (-3dB)
VOLTAGE OUTPUT: 15VRMS per channel into 50 Ohms with no more than 0.05% T.H.D.
SLEW RATE: Greater than 1000V/us small and large signal

T.H.D.: Less than 0.005% 20Hz-20KHz
I.M.D.(S.M.P.T.E.): Less than 0.005%
SIGNAL/NOISE: -117DBV unweighed input shorted

SENSITIVITY [Line Stage]: 26dB
INPUT IMPEDANCE: 100kOhms in parallel with 11pF


manual

reviews

Opus

“So neutral though, is the Metaxas Opus/Soliloquy set up that I could have used just about any sources I liked once the interconnecting cables were sorted. All I’d be hearing were the individual characteristics of the source components. However neutral or ‘naked’ the sound, the MAS doesn’t come off as ‘transitory’ or clinical... it had a feather-light touch and a way with tiny details that suggest either a pedigreed 60W or 70W per channel tube amp of recent vintage...”
— KEN KESSLER, HI FI NEWS& RECORD REVIEW, ENGLAND.

fINALE'

OPUS

An aesthetic engineering triumph, the OPUS preamplifier is the first example of “moulage” or draping with solid aluminium on an imaginary mannequin. The folds and drapes are impossibly sculpted using a 5 axis CNC machine. This organic, non-geometric form, allows a perfect evacuation of all chassis micro-vibrations.

OPUS

fINALE'

Opus

An aesthetic engineering triumph, the OPUS preamplifier is the first example of “moulage” or draping with solid aluminium on an imaginary mannequin. The folds and drapes are impossibly sculpted using a 5 axis CNC machine. This organic, non-geometric form, allows a perfect evacuation of all chassis micro-vibrations.

Opus

add on's

Siren

Papillon

stand

Papillon

vu meter

Papillon

set