Tecnical specification:
Aurium is a tube amp specifically designed for headphones. It works in pure class A zero-feedback.
It consists of:
-an INPUT stage with TAPE OUT to bypass the volume control
-one pre-amp tube in a "differential configuration"
-a volume adjusting stage and a digital controller.
-an output stage "white cathode follower" made by MOSFET (unity gain).
-a self bias circuit which maintains a constant working point of the MOSFET.
The volume controls is provided with an high class ALPS potentiometers. Such potentiometer, however,
doesn't manage "directly" the audio signal but it controls the digital stage of the volume control. In other
words the audio signal doesn't pass through that potentiometer.
In order to meet any kind of sources with different output levels, the machine is provided with a micro-
switch for each input so that you can change the sensitivity to avoid signal saturation.
To protect the headphone, it has been implemented an "unorthodox" solution which uses an electronic
intelligent circuit rather than the typical RC-network which generally reduces the damping factor.
The balanced XLR output tape has been desired by Pathos to enjoy and fully appreciate the high quality of
the Aurium. In fact, by using a balance sources, the sound quality will be excellent and the Aurium and other
amplifier connected to this putput, will able to give the best performances.
Output Power: 3,6W @ 32 Ohm
Output impedance: 0,5 Ohm
Max output level: 7V RMS max
Frequency response: 10Hz – 80KHz
THD: < 0,1%
Analogue inputs: 1 stereo balanced XLR & 3 stereo unbalanced RCA line
Analogue outputs: 1 stereo balanced XLR & 1 stereo unbalanced RCA line (bypass from source)
Max inpult level: 3,2 V RMS unbalance
1,6+1,6 V RMS balance
6,4 V RMS unbalance (con attenuatore)
3,2+3,2 V RMS balance (con attenuatore)
Main voltage: 90-250 V 50/60Hz
Power consumption: 30W
Size: 260 x 200 x 90 mm
Weight: 3Kg
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