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7
M2500 User Guide
you have a 565, this can be done in the 565 Calibration
procedure. If not, turn off the subwoofer and connect to the
negative unbalanced inputs, L-, or L- and R-, instead of the
positive.
Fitting the Spikes
When the subwoofer is finally positioned and calibrated, the
spikes and optional covers can be fitted.
1. Assemble each spike by screwing on a lock nut until it is about
2mm away from the spike end of the thread.
2. Unscrew and remove the castor at one corner of the unit.
3. Screw in a spike, but do not fully tighten it.
4. Place a plastic cover on the spike if required.
5. Repeat instructions 2-4 for all corners.
6. Carefully place the subwoofer in its final position and check
that it is level and stable. Adjust the lock-nuts as necessary.
7. Tighten the lock-nuts with the spanner provided.
Operation
Normally the M2500 should be left switched on, even when the
unit is not in use.
The electronics in the M2500 use the very latest techniques to
ensure that the idle power consumption of the unit is very low.
This ensures long periods of cool running and low energy
consumption. All audio equipment should be switched off if you
expect to be away from the installation for an extended period.
Maintenance
There are no user serviceable parts inside the M2500.
One or two days after installation check the tightness of the fixing
screws of the loudspeaker drivers. These screws may loosen
slightly in shipping or with extremes of temperature or humidity,
and the speaker will not sound at its best with them loose. Do not
over tighten them. It is worth checking these screws after transit or
extended periods of loud playing.
The electronics do not need routine maintenance.
The audio sockets are gold plated and, where gold plated phono
sockets are used, there should be no need to clean the contacts.
Other phono plugs should be unplugged and replugged once a
year. Some proprietary contact cleaners may be used to
advantage, but you should seek the advice of your dealer.