Congratulations on your purchase of the
AM
Music 805M, Pure Class A, Single Ended
Monoblocks. You are now the owner of one of the World’s finest amplification systems at
anywhere near its price. This amplifier is the culmination of 14 years of careful research and
development.
Unpacking and assembly:
Carefully remove the amplifier components from their cartons. They are very heavy and care
should be taken to not damage the amplifier or cause you injury in lifting them. Carefully
unpack the 805 tube. The tube mount is a single pin bayonet fitting. Fit the tube and turn it to
the right in a clockwise motion, as far as it will go. Ensure the two input tubes are matched up
to the correct pins and gap and push them firmly home. When fitting, or removing the tubes
with a Bakelite base, hold the base, or you could break the glass bottle from the base.
Some 805 tubes have a top cap, and some do not. If your amplifier does not have a top cap and
you wish to try a top cap fitted tube, contact AM or an AM Dealer and a cap can be supplied
free of charges.
WARNING.
If your amplifier is fitted with a top cap, there is high voltage
present at the top caps when the amplifier is switched on. This voltage can be
extremely dangerous, and if the cap is removed or tampered with when in
operation, a severe electric shock is possible
. The voltage drops to zero as soon as the
power is switched off and the green operating light is off.
Ensure that the power is off
and the power lead is removed before attempting to remove or access the tube.
On/off switch:
The on/off switch of each amplifier is central on the front of each amplifier.
Connection:
Connect the amplifier to your Hi Fi System. If in doubt as to whether to use the 4 or 8 ohm taps
on the amplifier, start with the 8 ohm. Just because a speaker is rated at 4, 6 or 8 ohms does
not necessarily mean that is the load seen by the amplifier when playing music. When the
amplifier has been biased and is warm, listen to some music and then connect to the 4 ohm
taps and listen to the same piece again. The one that sounds fuller, stronger and more musical
is the correct setting. Having it on the incorrect taps will not damage the speakers or the
amplifier.
Most speakers, with this amplifier will sound a lot better on the 4 ohm taps.