ALLNIC AUDIO M-3000 MK2 User manual

ALLNIC AUDIO
M-3000 MK2
KT-150 Monoblock Amplifier
OWNER’S MANUAL

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ALLNIC AUDIO
M-3000 MK2 MONOBLOCK AMPLIFIER
Thank you for purchasing the Allnic Audio M-3000 MK2 Monoblock Power
Amplifier. We are certain your trust in Allnic Audio and Allnic Audio USA, as
well as your appreciation for the sound of this high-quality device, will be
rewarded by its excellent operation for years to come.
Please read this entire manual before you connect the M-3000 MK2
Monoblock to the other components of your system and the wall outlet.
Albert Porter
[email protected]
Dallas, TX
North American Distributor, Allnic Audio.
AllnicAudioUSA.com

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TABLE OF CONTENTS:
___________________________________________________________________
INTRODUCING THE M-3000 MONOBLOCK POWER AMPLIFIER 4
___________________________________________________________________
WHAT’S IN THE BOX? 5
___________________________________________________________________
SAFETY 5
___________________________________________________________________
CLEANING
Chassis
Connectors 5
___________________________________________________________________
INITIAL SET-UP
Location, Location, Location
Inputs
Speaker Terminals
Power Connection 5
___________________________________________________________________
INITIAL POWER ON 6
___________________________________________________________________
OPERATION 6
___________________________________________________________________
TUBES AND TUBE BIAS 7
___________________________________________________________________
SPECIFICATIONS 7
___________________________________________________________________
WARRANTY 8
___________________________________________________________________
FIGURES 8
Please read about SAFETY before you attempt to use the M-3000 - we care
about our customers and the equipment, and we want you to enjoy this
product for a long time!

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INTRODUCING THE M-3000 MONOBLOCK POWER
AMPLIFIER
The M-3000 monoblocks are Allnic Audio’s top of the
line, parallel push-pull power amplifier model. Like all
Allnic Audio products, the M-3000 has Permalloy (iron
and nickel alloy) for its transformer cores. Allnic is
grateful to Mr. G.W. Elmen of Western Electric for
inventing Permalloy for transformer core use, and in so
doing, providing an enormous service to recorded
music listeners everywhere.
The M-3000 has the following features:
140 watts of high power output. The M-3000 is a parallel
push-pull, triode/pentode switchable power amplifier.
Powerful Driving Circuitry. Allnic believes in the
importance of using high-quality, low noise and powerful
driving circuitry in all its amplifying devices. Therefore, in
the M-3000, we employ the E282F tube in triode mode as
the second stage driver tube, with a load of about 5K
ohms, and using 20mA of current. The listener can easily
hear and even "feel" the differences between this design
and other, more conventional, ones. Please imagine, as
you listen to the M-3000, its sound compared to the sound
of an amplifier with conventional 12AU7 or 12BH7's used
as drivers, with a load of about 47K ohm, and using 2 to
3mA of current.
“Full Engagement" Output Transformers. Conventional
output transformers use pre-set secondary windings to
accommodate 4, 8 and 16 ohm loudspeaker loads.
However, these conventional transformers utilize
only one secondary winding at a time, while the other
secondary windings remain "idle". This approach has two
adverse effects. First, the output transformers are not
working at their maximum efficiency, reducing their output
relative to their potential. Second, the "idle" windings are
not actually "idle"; they are subject to parasitic oscillations,
producing their own "signal". This undesirable electrical
information is additive to the transformer's output,
distorting the amplified signal going to the loudspeaker.
Allnic's "Full Engagement" transformers address these
issues by having 4 independent, secondary windings which
are always fully connected, never "idled". This means that
all secondary windings are always connected to your
loudspeakers, regardless of which output switch position
you use (4 ohms or 8 ohms or 8 ohms or 16 ohms, depending
on the factory configuration you have selected). The result is
that there is neither a loss of transformer output efficiency,
nor the introduction into the output signal of distortion from
parasitic oscillations of the secondary windings.
Large Nickel/FeSi Core Output Transformers. As with our
other models, Allnic uses very large output transformers (114
mm) with nickel, mixed with FeSi, cores. This provides for
higher inductance with fewer windings than other designs
can provide and results in the great benefit of an extremely
wide range of output frequencies.
"Soft-start" Circuitry. Allnic uses soft start circuitry that, after
sufficient warm-up only, provides the high voltage supply to
the plate of each tube. This protective design results in
prolonged tube life and fewer and less frequent issues with
tube performance.
Analogue Power Tube Current Monitors. In order to provide
constant current (bias) monitoring for the power tubes,
Allnic uses a separate analogue current meter for each tube.
The meters make it exceptionally easy to see the status of
each tube at any time and to respond immediately to any
variation in bias by use of the bias control knob for the
relevant tube. The meters offer a simple, unambiguous
indication of each tube's status compared to conventional
LED bias monitors.
"On-the-Fly" Triode/Pentode Switching. Switching between
triode and pentode operation can be done "on-the-fly" at
any time while the amplifier is in use.
Beautiful 20KHz square wave response. See Figures 1-3.
Fig.1 Square Wave 50Hz Fig.2 Square Wave 1KHz
Fig.3 Square Wave 20KHz
Measured by LEADER LAG-126 Audio Signal Generator and KENWOOD CS-4125
Oscilloscope.

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As are all Allnic Audio products, the M-3000 is fully
RoHS (EU Reduction of Hazardous Substances
regulation) compliant in construction and materials.
WHAT’S IN THE BOX?
Please check that the pair (assuming you purchased a
pair) of shipping boxes contain the following:
One (1) each Allnic M-3000 monoblock power
amplifier
One (1) each IEC type power cord
One (1) Owner’s Manual
Note:
1) The M-3000 ships with the tubes installed.
2) The M-3000 will work with most IEC type
aftermarket power cords. Of course, only you
can determine the power cord that works most
synergistically with the M-3000 in your system.
3) Be sure the M-3000 is labeled for the AC
voltage of your location. If it is not, please
contact Allnic Audio USA.
We advise that you keep the boxes and other packing
materials that your M-3000 came in. It will be useful if
you sell your M-3000 or in the unlikely event you need
to ship it for service.
SAFETY
Remove ALL protective cushioning material
(cardboard around and “O” rings on tubes)
inside the tube chimneys before operation.
The tube chimneys should contain NOTHING
except the tubes.
Disconnect the power cord by pulling the plug,
not the cable.
Do not attempt any repairs. Do not remove the
unit’s chassis cover without specific authorization
from Allnic Audio USA.
Keep the power cord away from heat sources
Keep the unit away from liquids – do not allow
any liquid to enter the interior of the unit.
When the unit is moved from a cold to a warm
environment, allow sufficient time for any
condensation to evaporate before plugging the
M-3000 into an AC connection.
Do not attempt any repairs.
CLEANING
A. Chassis and glass
Use only a soft, lint-free cloth, dampened slightly with water
only (NO cleaning fluids!), to clean the faceplate, chassis and
tube chimneys of the M-3000.
B. Connectors
You may use any good quality contact cleaner recommended
for such applications to clean the contacts from time to time,
as you deem appropriate.
INITIAL SET-UP
A. LOCATION, LOCATION, LOCATION
Like all audio products using tubes, the Allnic Audio M-3000
needs to be placed on a solid stand in a location that provides
good air circulation around, above and below the monoblock.
DO NOT cover the top of the M-3000.
DO NOT place the unit on carpet or foam.
DO NOT subject the unit to knocks and shocks as you
move it around. This advice is meant particularly for
those who may want to place the M-3000 on some kind
of after-market isolation feet or similar devices.
Dropping one side of the M-3000, or the whole of the
unit, is not a good thing to do.
DO NOT place the unit near a strong light or heat source.
DO NOT place anything heavy on the unit.
DO NOT allow rubber or vinyl materials to rest on the
chassis for long periods of time. This could discolour the
metal.
DO place the unit on a shelf or stand that is stable and
not subject to vibration or sudden shock.
DO consider using a high quality power cord, inter-
connects and speaker cables. The M-3000 is a highly
sensitive piece of electronic designed for neutrality and
will output what you put into it.
DO try to place M-3000 away from major sources
and potential receivers of RFI and EMI. Though
well shielded, the M-3000 will function best away
from large power transformers and other sources
of such interference and from other equipment
that could be susceptible to such forms/sources of
interference.

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B. INPUTS
There are two (2) female inputs. One accepts a balanced
cable with a male XLR connector; the other accepts a cable
with a single-ended, RCA type male connector. These input
connections are located on the right (facing the back) rear of
the chassis, with the balanced input closest to the side edge.
Between the inputs, there is a switch to select 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). Please refer to Figure 4.
C. SPEAKER TERMINALS
The M-3000 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 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. Please refer to Figure 4.
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. The M-
3000 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. Please
refer to Figure 4.
The M-3000 you have purchased is set internally for AC
110/120 volt – 60 HZ operation. There is no way to
change this to another AC setting without return of the
unit to the factory for re-wiring, at the owner’s cost,
including transport both directions.
INITIAL POWER-ON
Once you have your M-3000 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. Before you power up
the M-3000, 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 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 5. 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 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(s monoblock(s first; then, turn off your preamplifier
and sources. If the M-3000’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’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 Allnic Audio USA 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 operate in Triode mode; press the button
again so it is in the raised position to have the M-3000 operate
in Pentode mode (See Figure 5).

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THE CURRENT METERS
These illuminated meters indicate the current supply to each
of the four KT1
5 0 gain tubes in the M-3000. There is one
current meter for each KT120 power tube. There is also a
potentiometer and a fuse for each KT150 . (See Figure 6).
When you turn on the M-3000, 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 KT1 5 0 tube’s respective
meter moving out from between these two parallel lines.
TUBES AND TUBE BIAS
Each M-3000 monoblock uses the following tubes:
Four (4) x KT1 5 0
Two (2) E282F
One (1) x 6AK6
Because of the individual bias for each KT1 5 0, it is not
necessary to use a matched quad of these power tubes in the
M-3000.
If the needle of a current meter for a KT1 5 0 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 face, turn the potentiometer
control counter-clockwise to correct.
If a meter’s needle drops to the left limit of the meter’s face
during operation, this indicates a failure of the related KT1 5 0
tube. You must turn off the M-3000 and replace both the fuse
(0.5A, 250V, 20mm glass type for that tube and the KT1 5 0.
To replace a fuse, using a screwdriver, simply turn the top of
the fuse cap counter clockwise. It will spring out holding the
fuse. Replace the fuse, push the fuse cap down and turn it
clockwise; it will lock itself. If you have any questions about
doing this, please contact Allnic Audio USA for assistance.
You may use any KT1 5 0 type tube in the M-3000. Of course,
you will have to adjust the bias back into the area between
the two parallel lines of the meter for a tube when it is
replaced. Please refer to Figure 6 for tube locations.
All consequences of changing or attempting to change tubes
are borne by the user unless by express agreement between
the owner and Allnic Audio USA. Allnic Audio and Allnic Audio
USA are not liable in any way whatsoever for any injury or
loss incurred by the user or for damage to the M-3000, any of
its parts, or tubes or replacement tubes resulting from the
user changing or attempting to change tubes.
SPECIFICATIONS FOR THE ALLNIC AUDIO M-3000 MK2 KT1 5 0
MONOBLOCK POWER AMPLIFIER
Output Power:
Distortion:
20 0w (8Ω load, at 1KHz)
0.17% at 1KHz at 10w
Frequency Response: 20Hz - 20KHz Flat
S/N Ratio:
Damping Factor:
Voltage gain:
Input Impedance:
Input Sensitivity:
Fuses:
Tubes (per chassis):
Dimensions:
Weight:
-80dB (CCIR, 1KHz)
8 at 8Ω load at 1KHz
+24dB
100KΩ (single-ended, unbalanced)
2.0V for rated power
0.5A, 250V, 20mm slow-blow
(KT1 5 0’s)
5A, 250V, 20mm slow-blow (IEC
Mains)
KT1 5 0 X 4 (power triode)E282F X
2 (second stage drivers)6AK6 X 1
(first stage driver)
(W x D x H) 430mm (16.93 inches) x
430mm (16.93 inches) X 240mm
(9.45 inches)
40Kg (88.2 lbs) net per monoblock.
55Kg (121 lbs) shipping weight per
monoblock.

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WARRANTY
All Allnic Audio amplifier products are warranted against materials and manufacturing defects for parts, excluding tubes, and
labour for two (2 years from date of purchase. Tubes are warranted against materials and manufacturing defects for one (1
year from date of purchase. The warranty is transferable for the balance of the original purchaser’s warranty period, provided,
as stated below, no unauthorized repairs or modifications have been performed on the product. Date of purchase is the date
indicated on the invoice for the product issued by Allnic Audio USA.
For the warranty to be valid, a defective product must be returned to Allnic Audio USA for service prior to any unauthorized
attempt to repair. Any repair work on an Allnic Audio product not specifically authorized by Allnic Audio USA will void the
warranty on the product.
Figure 4 – M-3000 MK2 Rear Panel View
Figure 5 – M-3000 MK2 Front Panel View

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Figure 6 – M-3000 MK2 Chassis Top View