ALLNIC AUDIO M-3000 MK 3 Manual del usuario - Página 7
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one of two pin configurations for a balanced cable (i.e., it changes the phase). The top position is for pin 2" hot" and
pin 3 "cold"; the bottom position is for the reverse (in both cases, pin 1 is ground). See Figure 5.
C.
SPEAKER TERMINALS
The M-3000 MK 3 is equipped with one pair of high-quality speaker terminals. These terminals are located in the
middle of the rear panel of the M-3000 MK 3 chassis, with the terminal for the live connection marked positive "+"
on the left, and with the return connection labeled negative "-", to the right (facing the chassis rear). Between the
plus and minus terminals is a switch that provides for either 8 or 4 ohm impedance, as your speakers may require.
The upper position of the switch is for 8 ohm operation; the lower for 4 ohm operation. 8 and 16 ohm terminals are
available by special order. The terminals accept bare wire (not recommended) and spade and banana type
connectors. See Figure 5.
D.
POWER CONNECTION
Connect the input interconnect and speaker cables before you insert the power cable into the receptacle at
the left (facing the back) rear of the chassis (See Figure 5). The M-3000 MK 3 uses a standard three prong male
IEC connection for AC input. You need to use a power cord with a female three prong IEC connector at one
end.
The M-3000 MK 3 will be set internally for your location's electrical system characteristics. Please check the
setting for electrical input on the label on the rear of the unit to confirm that your M-3000 MK 3 matches your
location's electrical system. For North American customers, the M-3000 MK 3 is set internally for AC 110/120 volt
– 50/60 Hz. For customers in other regions, the unit is set for 230/240V – 50/60 Hz operation. If the voltage is not
correct, do not connect your monoblocks to AC and please contact your authorized Allnic representative. AC
voltage can be switched from one to the other but only by a qualified technician. For instructions, please contact
your authorized Allnic representative.
INITIAL POWER-ON
Once you have your M-3000 MK 3 in place and all connections have been made to your source(s) and preamplifier,
you are ready to turn on the power for your M-3000 MK 3. Before you power up the M-3000 MK 3, though, be sure
you have:
•
removed ALL the cushion materials (cardboard) from inside the tube chimneys.
"O" rings on the small tubes, if any; some prefer the sound with the O rings on.)
•
ensured the input connections you are using, single ended (RCA) or balanced (XLR), are firm and secure, and if
using the XLR, that the switch on the back of the chassis is set to the appropriate pin configuration
•
turned on your source(s) and your preamplifier, and turned the preamplifier's volume control down to zero or
otherwise muted its output
•
securely and correctly fastened the speaker cables, ensured that they are also connected properly to the
speakers, and that the speaker impedance switch is set to the position matching your speakers' impedance
•
checked that all tubes are snug in their sockets
Turn on the M-3000 MK 3 by pushing in the power switch button located at the right of the front panel (facing the
front of the unit) to the "on" position (See Figure 4). The "on" position is with the button switch depressed. Of
course, the off position is the reverse. After about a thirty to forty (30 - 40) second delay (the soft start), the M-
3000 MK 3 will be powered on. After warm-up and application of full plate voltage, not all tubes may bias at the
same rate. Allow one or two minutes for all the tubes to reach full operating specification.
4
(It is optional to leave the