5
When connecting this unit to a CD/DVD player, tuner, or other analogue source, turn off the power switches of this amplifier and
all other connected units. Inserting a plug while the amplifier is operational will cause a very strong noise that may damage the
speakers. In the worst case, this can also cause equipment malfunction. Push any connecting plug into the matching socket firmly
and securely. If the earth side is inadequately inserted, hum and similar noise may be generated, resulting in an adverse S/N
ratio.
Connection with other components
When making loudspeaker connections, be sure not to cause short-circuits between the + and speaker terminals of this unit. If
signals are applied to the amplifier with its output left short-circuited, a large current may be generated in the output circuit and
cause malfunctioning.
Cautions for speaker connections
In order to allow the output devices to stabilise, a time muting circuit mutes the output when the amplifier is first switched on. For
this reason do not expect to hear music until the muting circuit has clicked off.
If the volume control is inadvertently moved to a high level while the output is muted, when the time muting circuit clicks off a
high sound level will be passed to the speakers which could damage them!
It is therefore recommended that the volume control is moved to minimum when first switching the amplifier on.
After the timed muting circuit clicks off, adjust the volume control to a comfortable listening level.
Sound is not immediately heard after the power supply is turned on
When repair and adjustments are needed, please ask the store where you purchased the unit.
Repair and adjustments
For cleaning, use only a dry, soft cloth to wipe the unit. If the unit has become very dirty, remove the dirt with soft cloth that has
absorbed a small amount of neutral detergent, and then wipe the unit dry with a dry, soft cloth. Do not use a solvent like benzine
or paint thinner because strong solvents can often damage the exterior paintwork.
Cleaning
Burn in is very important. Valve components work at high voltages and temperatures and when new they should spend an
extended period at those temperatures to bed in. We recommend you burn in the amplifier for at least four, or preferably twelve,
hours before serious listening. If you run in your equipment for this extended period, make doubly sure that all the safety
conditions covered in this manual are fully met. Supervise the equipment for the first hour or so and, if you have to leave the unit
unattended thereafter, look in occasionally to make sure all is well.
Burn In New Equipment
Ideally allow at least fifteen minutes for the amplifier to fully 'warm up’, or at least 1 minute before use. If you play loud music
while the system is cold the output valves will not be fully operational and the amplifier will be starved of voltage and current. The
resulting distortion is unpleasant and may lead to potential damage to the amplifier's valves and your headphones. Intensive use
of the equipment before it has warmed up will shorten the valve's life.
Warming Up Before Use
FURTHER ADVICE
Summary of Contents for VA-ONE+
Page 1: ...VA ONE ...
Page 6: ...3 The selected source indicator will flash when VA ONE responds to remote commands ...
Page 11: ......
