ALLNIC AUDIO M-3000 MK2 Owner's Manual - Page 7

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INITIAL POWER-ON

Once you have your M-3000 MK2 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 MK2. Before you power up the M-3000

MK2, though, be sure you have:

•

removed ALL the cushion materials (cardboard and

"O" rings) from inside the tube chimneys/on tubes.

•

selected the input connection that you want to use,

single ended (RCA) or balanced (XLR), on the switch

on the back of the chassis and have the interconnect

firmly attached.

•

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

and ensured that they are also connected properly

to the speakers

•

checked that all tubes are snug in their sockets

Turn on the M-3000 MK2 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. 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 MK2 will

be powered on.

OPERATION

When the power is on, the current meters on the top

plate of the chassis will illuminate. From this point on,

operation is straight-forward. When you are finished

listening, turn off your M-3000 MK2(s) monoblock(s)

first; then, turn off your preamplifier and sources.

M-3000 MK2's are in triode mode at turn-off, they will

produce a sound through the speakers as the

amplifier's relays turn off. Though this sound is

harmless to speakers, some users may prefer not to

hear it. To avoid the sound, simply switch the M-3000

MK2's to pentode mode prior to turning them off (see

the "On-the-Fly Triode/Pentode Switching section

below).

In the case of any failure, please contact Audiomentors

for assistance.

"ON-THE-FLY" TRIODE/PENTODE SWITCHING

You can use the Triode/Pentode "Mode Selector" button

at any time during operation to switch back and forth

from Triode to Pentode operation. Press the mode

selector button down to have the M-3000 MK2 operate

in Triode mode; press the button again so it is in the

raised position to have the M-3000 MK2 operate in

Pentode mode.

THE CURRENT METERS

These illuminated meters indicate the current supply to

each of the four KT150 gain tubes in the M-3000 MK2.

There is one current meter for each KT150 power tube.

There is also a potentiometer and a fuse for each KT150.

When you turn on the M-3000 MK2, the needle of each

current meter should be between the two parallel lines

on the meter face. Any error of current supply to or

failure of a KT150 tube is indicated by the needle on the

KT150 tube's respective meter moving out from

between these two parallel lines.

TUBES AND TUBE BIAS

Each M-3000 MK2 monoblock uses the following tubes:

• Four (4) x KT150

• Two (2) x E282F

• One (1) x 6AK6

Because of the individual bias for each KT150, it is not

If the

necessary to use a matched quad of these power tubes

in the M-3000 MK2.

If the needle of a current meter for a KT150 has moved

to the left of the parallel lines on the meter face, using

an appropriately bladed screwdriver, adjust the

potentiometer directly in front of that tube's location by

turning it clockwise until the needle has returned to

between the meter's parallel lines. If the meter needle

has moved to the right of the parallel lines on the meter