Owner`s manual

10
Ayon Audio – Hart 18 – 8101 Gratkorn – Austria – Phone: [phone]
www.ayonaudio.com
3. Turn ON procedure
When all sources are connected properly, turn down the volume (preamp) to minimum, switch on the
power - the Ayon-logo is flashing for a while and then it glows; it will go through a gentle power-on
sequence first. Please wait for min. 60 seconds before turning the volume up. After approximately 60
seconds, the unit is operational. Now you can increase the volume. Follow this procedure each time you
turn your Vulcan on.
Some preamplifiers and sources can generate transients. Source components and power supplies
should be always switched on before the power amplifiers.
To avoid letting transients reach your loudspeakers turn your system on in the following order:
1) Turn on all sources (CD, tuner, etc.) that you will be using.
2) Turn on the preamplifier.
3) Wait until preamp has stabilized.
4) Power up Vulcan mono amplifiers.
5) Select listening source and play music.
During the start-up period the amplifier is controlled by an electronic protection circuit. E.g. in case
a tube is defective the amplifier section is switched off. (See section 6 for correction of defects)
Note: The Vulcan is using a big dual power supply with large high voltage capacitor storage, during
power ON an electrical capacitor charging noise – mild hum may be heard a bit especially when the
amp was turn off for a while, as we did not install output relays at the speaker terminals influencing the
sound quality. This is not cause for alarm, it is normal. Furthermore the tubes themselves may issue sounds
resulting from material tensions (grid – anode plate) or electro-static discharge for a short time when
switching on. This “noise” neither damages the loudspeakers nor indicates a malfunction of the amplifier
or the tubes.
Also a “thump” may be heard from the loudspeakers as power amplifiers are switched on.
This is normal, will not cause any loudspeaker damage and does not point to any fault or problem.
To switch on or off always use the power switch of the equipment; otherwise the internal
microprocessor of the Vulcan cannot recognize or compute various information of the switch
on/off process. This may result in significant malfunctions.
I n General you should always use the power switch of your hi-fi-equipment instead of a so-called external
main-switch or the switch of a power strip or a timer etc. These devices may also have a negative effect
on the operating life of the equipment, because it is always switched “hard”.