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Who seriously resolves to rethink a matter, always has to start with the most difficult question of all. The question “Why?” Why do all conventional amplifiers have to battle with cross-zero distortions? Why are there no truly satisfying solutions to fight the contaminations of the public mains system? Why does one allow that electronic components resonate and thus distort the sound? And last but not least: Why do amplifiers all look alike? Questions which are still open and which served us as the starting point of likely one of the most ambitious projects in the history of amplification technologies: the XA PRE.


Podrobnosti o izdelku



Technical data do not always allow statements on the sound effect. But they provide information about the care an amplifier has been developed with:

  • 5 x 2300 mAh battery power supply
  • 48-step electronic volume control (1.5 steps)
  • DC-Flow circuitry (patent pend.)
  • ‘Zero feedback’ circuit design
  • LC filter stages for primary & secondary voltages
  • Line inputs: 5 x XLR
  • Line outputs: 2 x XLR Pre-Out
  • IR remote control
  • Individualised front parts: silver/black anodized, lacquered, veneered
  • 2-part aluminium cast chassis (42.5 kg)


Electronic circuitry


DC-Flow audio circuit (patent pend.) yes
Electronic volume control switch
(patent pend.)
48 steps (1.5 dB each)
Single ended pure Class A output stage yes
Zero feedback yes
Filter capacitors
Primary DC-offset filter
Primary and secondary LC filter stage
Active electronic voltage regulation


Inputs / outputs


Symmetrical inputs 5
Symmetrical outputs 2
Input impedance 10 kOhm
Trigger (DC voltage) 2 x 12V output


Chassis and finishes


Outer unibody aluminium chassis
with heatsinks
18.5 kg
Inner unibody aluminium core 10.5 kg
Chassis black powder coated
Upper and lower brackets black or silver anodized
Handles black or silver anodized
Command bar black or silver anodized
Frontpanel -black or silver anodized
-wooden veener
-high gloss lacquer finish


Dimensions / weight


Width x Height x Depth 484.5 x 190.0 x 486.0 mm
Weight 41.0 kg