2
X
s
Owner’s Manual
Read Me First
I fully realize that many, if not all, owners will rush to hook up the
amplifier without reading this operating manual. I don’t blame you
– I don’t read them either. However, this amplifier is different in a
number of ways, and if you only read this page you will probably
save us both some time and trouble.
Heat and Ventilation
- These amplifiers consume a lot of power
(around 1000 watt for the Xs 300 & around 500 watts for the Xs
150) and most of this is converted it into heat. Pick a location where
the amplifier can get some fresh air to remove the heat. Do not
enclose the amplifier in a closed cabinet. Give it lots of space. It is
expected that you will probably place the channel chassis on top of
the power supply chassis. You don’t have to, but this is how we use
them ourselves.
Power Connection
– The power supply and channel chassis are
connected by an umbilical cable with Neutrik Powercon connectors.
These connectors have a locking mechanism which requires a
clockwise turn after insertion.
Be certain that this connector
locks properly.
The little lock button will click upon locking. After
it has been turned and locked it will not rotate back unless you push
the locking button. Do not attempt to make or undo this connection
while the power supply is plugged into the AC outlet.
Input Connection and Input Impedance
- The Xs amplifiers
takes either a single-ended (RCA) or balanced (XLR) input
connection. The input impedance is 100 Kohms single-ended
and 200 Kohms balanced, and the input capacitance is just a few
picofarads so anything will drive it. If you are using RCA inputs,
then you want to use the gold input jumper to short the (-) input (pin
3) of the XLR connector to ground (pin 1) as shown:
Output Connection
- You can hook this amplifier up to any normal
loudspeaker without danger of damage. Note, however that both
the (+) Red output connection and the (-) Black output connection
are live – neither is to be treated as if it were ground. This can be
important when you are hooking up active sub-woofers to the output
of the amp – if you need a ground connection then use the white
ground terminal provided on the rear panel.