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By Orpheus Labs

Orpheus Labs A TWO 22D Preamp

$18,900.00
$18,900.00
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$18,900.00
$18,900.00
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Orpheus Labs H TWO 33BD OPUS II Preamplifier
VAC Essence Preamp
VACVAC Essence Preamp

The Absolute Pre-Amp becomes the centrepiece of your setup, infusing every note with vitality and every silence with meaning.

With unparalleled artistry, it brings out the finest details of your music, capturing every subtlety with unmatched clarity. A unifying harmony that binds the elements, transforming sound into an emotional journey, delivering breathtaking dynamics and an expansive soundstage.

A Two 22D

Absolute Discrete Preamplifier

Building upon the CRQL technology developed for our prestigious Heritage line, the A Two 22D discrete component preamplifier achieves a perfect harmony between technological prowess and musicality. Its purely resistive attenuator, configured in an unbalanced design, goes beyond mere faithful reproduction of recordings; it is dedicated to capturing the soul of the music, rendering it more vivid than ever.

A Two 22D

Absolute Discrete Preamplifier

Building upon the CRQL technology developed for our prestigious Heritage line, the A Two 22D discrete component preamplifier achieves a perfect harmony between technological prowess and musicality. Its purely resistive attenuator, configured in an unbalanced design, goes beyond mere faithful reproduction of recordings; it is dedicated to capturing the soul of the music, rendering it more vivid than ever.

The internal architecture consists of 5 levels

  1. Source selection : offers a choice between two balanced and two unbalanced inputs, seamlessly adapting to any source while preserving absolute signal integrity
  2. Conditioner stage : ensures that even the most delicate audio signals are brought to the same reference level, delivering identical sonic quality regardless of the input mode—balanced or unbalanced
  3. Each input features a selectable gain stage (High, Medium, or Low), offering the flexibility to perfectly adapt to the vast array of sources available on the market.
  4. Volume adjustment between -120 dB and +6 dB by 1 dB steps
  5. Class A current-buffered output stage

At the heart of the system is an attenuator based on CRQL technology, enabling precise adjustment to the desired output levels. CRQL stands for “Constant Resistive Quadrupoles with a Logarithmic distribution architecture”. This internal circuit has the advantage of being inherently logarithmic, thus avoiding approximations like the more commonly used linear R-2R system in this type of application. The CRQL attenuator module uses quadrupoles composed solely of high-quality metal-film resistors with a tolerance of 0.1 %. It allows volume adjustment between -121 dB and +6 dB in 1 dB steps. To guarantee maximum signal integrity, our CRQL module contains no semiconductor components in series with the signal. Additionally, volume changes occur within a maximum of 150 ns after an audio signal zero-crossing.

TECHNICAL SPECIFICATIONS

INPUT
Connections 2x XLR and 2x RCA
Balanced input Impedance 94 kΩ
Unbalanced input Impedance 47 kΩ
Maximum Input Level (input Bal) 7.2 Vrms
Maximum Input Level (input Unbal) 3.6 Vrms
Grounding Grounded : Signal ground connected to earth
Two possible modes selectable by a switch on the rear panel) Lifted : Separated ground and earth signal
OUTPUT
Connections XLR or RCA
Maximum Output Level (input Bal) 6.2 Vrms
Maximum Output Level (input Unbal) 3.1 Vrms
Frequency range (+0 dB, -0.1 dB) 5 Hz to 24 kHz
Frequency range (-3 dB) 0.7 Hz to 330 kHz
THD+N < 0.0014 % (-97 dB) @ 1 kHz
Gain balanced max 18 dB
Gain unbalanced max 24 dB
Clip to Noise Ratio -105 dB
Gain unbalanced 32 dB
Gain Balanced 26 dB
Output impedance Balanced 200 Ohm
Output impedance Unbalanced 100 Ohm
TECHNOLOGY USED
Three Pre-configured input gain 0 dB, +5.85 dB or +11.88 dB corresponding to the High, mid or low input level
Adjustment ranges from -120 dB to +6 dB in steps of 1 dB
Real dual mono topology
Purely resistive passive component attenuator without any feedback loops or semiconductor components
Class A type output current buffer
POWER
Nominal line voltage 100, 115 or 230 Vac
Input voltage range ± 15 %
Maximum power consomption 50 W
SIZE & WEIGHT
Height 100 mm
Depth 420 mm
Width 440 mm
Weight  14.2 kg
SAFETY FEATURES
Automatic switching to MUTING if the AC line drops or is interrupted.