Violectric DHA V590² Pro Headphone Amplifier, Preamp, and DAC - Manual (Page 11)

11
With its dimensions, the VIOLECTRIC DHA V590 ensures optimum flexibility combined with high
output power. During design, high emphasis was put on operational safety even when the unit is
operated inappropriately.
DHA V590 is equipped with safety circuitry and internal filters to prevent damage to the connected
headphones due to DC voltages at the outputs, power overload and high-frequency overload
beyond the audible range.
THE CASE
of VIOLECTRIC DHA V590 is made of 3 + 4 mm Aluminum and a thick 8 mm aluminum front panel.
This choice of material ensures high mechanical stability and resistance whilst maintaining a high
optical and haptic quality.
GROUND AND PROTECTIVE EARTH
The case of VIOLECTRIC DHA V590 is connected to protective earth.
POWER SUPPLY
Mains power is provided via a three-pin IEC/CEE socket and mating "cold-appliance" mains cord with
Schuko-type plug for units purchased in middle Europe.
The device is set to 230V mains, whereas the actual voltage may vary between 190 and 240 volts for
flawless operation.
The mains voltage may be altered to 115 V AC supply inside the unit with the aid of a mains voltage
selector. In this case stable operation is granted in a range of 85 to 120 V (see page 31).
Two toroidal transformers each with 25 Watt are providing the internal operating voltages
of +/-25 V. Out of these voltages some more operating voltages are generated.
MAINS FUSE
The time-lag fuse is soldered
in place on the circuit board.
In case, it must be replaced
with a fuse of the same type
only.
CAUTION!!
MIND THE SAFETY INSTRUCTIONS:
A blown fuse indicates an internal fault and
should be replaced during
qualified repair or servicing only!