A TWO 22D

Absolute Discrete Preamplifier

At the core of every transcendent audio experience lies
the beating heart of the system, where passion takes form.

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.

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.

At the core of every transcendent audio experience lies the beating heart of the system, where passion takes form.

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.

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
Connections2x XLR and 2x RCA
Balanced input Impedance94 kΩ
Unbalanced input Impedance47 kΩ
Maximum Input Level (input Bal)7.2 V RMS
Maximum Input Level (input Unbal)3.6 V RMS
GroundingGrounded : Signal ground connected to earth
Two possible modes selectable by a switch on the rear panel)Lifted : Separated ground and earth signal
OUTPUT
ConnectionsXLR or RCA
Maximum Output Level (input Bal)6.2 V RMS
Maximum Output Level (input Unbal)3.1 V RMS
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 max18 dB
Gain unbalanced max24 dB
Dynamic Range> 105 dB
Gain unbalanced32 dB
Gain Balanced26 dB
Output impedance Balanced200 Ω
Output impedance Unbalanced100 Ω
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 voltage100, 115 or 230 Vac
Input voltage range±10 %
Maximum power consomption50 W
SIZE & WEIGHT
Height100 mm
Depth420 mm
Width440 mm
Weight 14.2 kg
SAFETY FEATURES
Automatic switching to MUTING if the AC line drops or is interrupted.