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31. SPARE FUSE HOLDER.
This is not connected to the circuit. It simply is a spare fuse should you ever need one. If
you replace the main fuse, be sure to put a backup in its place. Always use the correct
current rating fuse.
Always keep a backup fuse available. You never know when you may need it.
32. IEC POWER INPUT SOCKET.
Connects the amplifier to AC power supply. Always use a grounded plug and make sure
the AC cable is more than 10A rating at 250volt AC. We recommend that you always use
the PJB high-current AC cable included with this amplifier as it was designed to
withstand high current demand that the M-500 needs.
33. IEC POWER OUTPUT SOCKET.
This is a non-switched socket to provide power for effects units or other ancillary
equipment. Maximum power rating is 1000 watts.
34. AC INPUT -VOLTAGE SELECTOR.
Switches the amplifier to run on either 110-115volt or 220-240volt AC power.
Never try
to run the amplifier on a 220-240volt supply when switched to 110-115volt. This can
possibly cause major damage to the amplifier.
35. LOUDSPEAKER OUTPUTS (NEUTRIK SPEAKON CONNECTORS).
The M-500 amplifier will work on any load from 16
Ω
down to 2
Ω
, which is the safe
maximum load for this amplifier. The ‘Speakon’ sockets are in parallel so connecting two
8
Ω
speakers will result in a 4
Ω
total load. We recommend that you use PJB high current
speaker cables; which are dedicated high-current, low-resistance cables. Using inferior
cables will greatly impair the performance of your system.
36. PRE AMPLIFIER OUTPUT JACKS.
These are used for driving a second amplifier such as another M-500 or the PJB S-1000
slave amplifier and even a Tuner. You can run a shielded cable from this socket to the
line input of another M-500 (with both graphic EQ and parametric EQ bypassed) to give
double the amplifier power. The master volume controls the level out of these jack
sockets. Its own “buffer” amplifier circuit isolates each output-jack. The benefit is that
each output is independent from each other. Even a faulty cable connected to one will not
affect the other. (Most brands use paralleled outputs to save costs.)
37. XLR- DIRECT OUTPUT SOCKET.
This is an ultra-low impedance (200
Ω
) balanced line out for use with recording or PA
mixing consoles. This output is not controlled by the master volume output control.
Changing the input level control will however, vary the DI output.
38. XLR- DIRECT OUTPUT PRE/POST EQ SWITCH.
This switch allows you to use the M-500 EQ or bypass EQ to suit requirements of
recording or sound reinforcement systems.
Содержание M-500
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