This booklet contains important information concerning the proper and safe operation of your new amplifier..
U S E R I N S T R U C T I O N S
ii
ii
X Series
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
SIGNAL SIGNAL
CLIP CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
ON
OFF
CHANNEL 2
POWER
X-6000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
SIGNAL SIGNAL
CLIP CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
ON
OFF
CHANNEL 2
POWER
X-4000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
ON
OFF
SIGNAL SIGNAL
CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
CHANNEL 2
CLIP
X-3000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
UNiK A
P R O F E S S I O N A L AU D I O
Important Precautions
!
This symbol is used to alert the operator to
follow important operating procedures and
precautions detailed in documentation.
This symbol is used to warn operators that
uninsulated "dangerous voltages" are
present within the equipment enclosure
that may pose a risk of electric shock.
1.Save the carton and packing material even if the
equipment has arrived in good condition. Should
you ever need to ship the unit, use only the original
factory packing.
2.Read all documentation before operating your
equipment. Retain all documentation for future
reference.
3.Follow all instructions printed on unit chassis for
proper operation.
4.Do not spill water or other liquids into or on the unit,
or operate the unit while standing in liquid.
5.Make sure power outlets conform to the power
requirements listed on the back of the unit.
6.Do not use the unit if the electrical power cord is
frayed or broken. The power supply cords should be
routed so that they are not likely to be walked on or
pinched by items placed upon or against them,
paying particular attention to cords and plugs,
convenience receptacles, and the point where they
exit from the appliance.
7.Always operate the unit with the AC ground wire
connected to the electrical system ground.
Precautions should be taken so that the means of
grounding of a piece of equipment is not defeated.
8.Mains voltage must be correct and the same as that
printed on the rear of the unit. Damage caused by
connection to improper AC voltage is not covered
by any warranty.
9.Have gain controls on amplifiers turned down during
power-up to prevent speaker damage if there are
high signal levels at the inputs.
10.Power down & disconnect units from mains
voltage before making connections.
11.Do not turn the power switch on the "ON" position
if you do not use it.
12.Do not use the unit near stoves, heat registers,
radiators, or other heat producing devices.
13.Do not block fan intake or exhaust ports. Do not
operate equipment on a surface or in an
environment which may impede the normal flow of
air around the unit, such as a bed, rug,
weathersheet, carpet, or completely enclosed
rack. If the unit is used in an extremely dusty or
smoky environment, the unit should be periodically
"blown free" of foreign matter.
14.Do not remove the cover. Removing the cover will
expose you to potentially dangerous voltages.
There are no user serviceable parts inside.
15.Connecting amplifier outputs to oscilloscopes or
other test equipment while the amplifier is in
bridged mode may damage both the amplifier and
test equipment!
16.Do not drive the inputs with a signal level greater
than that required to drive equipment to full output.
17.Do not connect the inputs / outputs of amplifiers or
consoles to any other voltage source, such as a
battery, mains source, or power supply, regardless
of whether the amplifier or console is turned on or
off.
18.Do not run the output of any amplifier channel
back into another channel's input. Do not parallel
or series connect an amplifier output with any
other amplifier output.
19.Do not connect any Bridged speaker Output to
ground!
20.Non-use periods. The power cord of equipment
should be unplugged from the outlet when left
unused for a long period of time.
21.Service Information Equipment should be
serviced by qualified service personnel when:
A. The power supply cord or the plug has been
damaged.
B. Objects have fallen, or liquid has been spilled into the
equipment.
C. The equipment has been exposed rain.
D. The equipment does not appear to operate normally,
or exhibits a marked change in performance.
E. The equipment has been dropped, or the enclosure
damaged.
22.To obtain service, contact your nearest dealer.
X-3000 <2U MODEL> / X-4000 P-6000 <3U MODEL>
page 1
UNiK A
P R O F E S S I O N A L AU D I O
Front Views & Rear Views...............................................................................................3
Introduction........................................................................................................................4
Unpacking...........................................................................................................................4
Installation and Mounting..............................................................................................4
Front Panel...............................................................................................................................5
Rear Panel................................................................................................................................6
Operation............................................................................................................................8
Mode Selection....................................................................................................................9
Protection...........................................................................................................................13
Specifications...................................................................................................................14
CONTENTS
WARNING!
Please check up the environment AC
POWER supply for the amplifier before
installation and use. Mains voltage must
be correct and the same as that printed
on the rear of the unit. Damage caused
by connection to improper AC voltage is
not covered by any warranty.
!
page 2
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiK A
P R O F E S S I O N A L AU D I O
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Mode Selection Protection Specifications
X-3000 (2U MODEL) Front & Rear View
depth 445 mm
Front
height
88mm
Front widt h 483 mm
X-4000 X-6000 (3U MODEL) Front & Rear View
depth 522m m
Front
height
133mm
Figure 1
Figure 2
page 3
Front width 483 mm
PARALLEL
STEREO
BRIDGE
THRU
PUSH TO RESET
NORMAL
SUB
FREQUENCY
20 Hz 200 Hz
SUB
NORMAL
FREQUENCY
20 Hz 200 Hz
CH-2
CH-1
GAIN
0.775V
1.44V
1V
Made in Taiwan
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
~220VAC 50Hz
5600 WATTS
H
-
2
C
OUTPUTS
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
INPUT THRU INPUT
LIFT
GROUND
INPUT
I
D
G
R
B
E
K
C
O
L
0.775V 1.44V1V
GAIN
INPUT
Made in Taiwan
PARALLEL
PUSH TO RESET
~220VAC 50Hz
1800 WATTS
BRIDGE
NORMAL
STEREO
20Hz
200Hz
FREQUENCY
SUB
NORMAL
SUB
20Hz
200Hz
FREQUENCY
CH-2 CH-1
THRU THRU
INPUT INPUT
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
H
-
2
C
1+ 1-
POS NEG
CH- 2
1+ 1POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
LIFT
GROUND
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
ON
OFF
SIGNAL SIGNAL
CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
CHANNEL 2
CLIP
X-3000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
SIGNAL SIGNAL
CLIP CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
ON
OFF
CHANNEL 2
POWER
X-6000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
Front Views & Rear Views Front Panel Rear Panel Operation Mode Selection Protection SpecificationsIntroduction Unpacking Installation and Mounting
Introduction
Congr atu lations on you r pur chase of a new X Ser ies p rofessiona l pow er amplifier, a nd thank you for your
confi den ce in UNIKA produ cts .
For you r saf ety, please re ad the Important Pr ecautions secti on before inst all ing and operat ing t he amplifier.
The UNI KA X Ser ies is based on th e sam e advanced cir cui t topologies t hat h ave made UNIKA am pli fiers the
choic e of to uring profes sio nals worldwi de. X S eries amplif ier s are designed f or hi gh operating e fficiency a nd
accur ate s onic perform anc e across the ful l aud io bandwidth , eve n under stress ful c onditions. I nte rnal
compo nen ts are the fines t ava ilable, and ke y sub -assemblie s are p re-tested be for e final assemb ly. Finally,
each am pli fier is "burne d in" a nd thoroughl y tes ted (using pre cis ion audio test e quipment) befor e shipping.
In addi tio n, all X Series am pli fiers incorp ora te UNIKA’s exclusive Tour Class prote cti on features to
safeg uar d both interna l cir cuitry and con nec ted loudspea ker s. This pr ove n combinatio n of advanced desig n,
quali ty co nstruction , and c omprehensi ve ci rcuit protec tio n is your guaran tee o f fail-safe re lia bility. You can
depen d on co nsistent, st abl e performanc e eve n when your X Seri es am plifier is sub jec ted to punishi ng
extre mes i n the most deman din g fixed or mobil e sou nd reinforce men t applicatio ns.
Unpacking
Pleas e ins pect the ampli fie r carefully im med iately after u npa cking. If you fi nd an y damage, noti fy yo ur
suppl ier /dealer imme dia tely. Onl y the s hipper may fil e a dam age claim with t he ca rrier for dama ge in curred
durin g shi pping. Be sure t o sav e the carton and a ll pa cking materi als f or the carrier 's in spection. If y our
packi ng ma terials are in g ood c ondition, pl eas e save them. If yo u eve r need to ship the u nit b ack to UNIKA or
an auth ori zed service ce nte r, you should use o nly t he original fa cto ry packing.
Installation and Mounting
Only on e X Ser ies amplifie rs ar e 2-rack-spa ce un its : X-3000 and X -30 00/X-6000 ar e 3-r ack-spaces h igh .
All mou nt in s tandard 19-i nch r acks. Four fro nt- panel mounti ng ho les are provid ed on e ach amplifie r. Rear
mount ing e ars give addit ion al support, an d use o f rear support s is hi ghly recomme nde d in all mobile an d
touri ng so und systems. Opti onal rack-mo unt h andles are ava ila ble.
page 4
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
SIGNAL SIGNAL
CLIP CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
ON
OFF
CHANNEL 2
POWER
X-6000
STEREO BRIDGEABLE POWER AMPLIFIER
UNiKA
PROFESSIONAL AUDIO
ON
OFF
SIGNAL SIGNAL
CLIP
LIMITER LIMITER
CHANNEL 1
ON ON
STEREO
BRIDGE
PARALLEL
CHANNEL 2
CLIP
X - 3 0 0 0
STEREO BRIDGEABLE POWER AMPLIFIER
Figure 3
Front Views & Rear Views Introduction Unpacking Installation and Mounting Rear Panel Operation Mode Selection Protection SpecificationsFront Panel
1. Rack Mounting Ears - Two front panel mounting holes are provided on each mounting ear.
2. AC Power Switch - X Series amplifiers have a front-panel main AC power switch.
3. Mode Indicated LED - Red LED indicates "parallel" Mode, Green LED indicates "stereo" Mode, Yellow indicates
"bridge" Mode.
4. UNIKA Logo and Model No - X series have 4 type model X-3000/X-6000 (3U model) / X-3000 (2U model).
5. Fan Inlet Grills and Filter - X Series amplifiers are cooled by two rear-mounted fans. Cool air from front grills are
filtered and flows over the heat sinks and exhausts to back side. Make sure these outlets remain clear to allow
unrestricted air flow.
6. Limiter Switch - You can select limiter on "on" for limiter working, and another mode is for limiter no working.
7. Input Attenuators - Two input attenuators adjust level for their respective amplifier channels. In Bridged &Mono
(parallel) Mode.
8. Clip LED - Illuminates at the clipping threshold. Continuous illumination also indicates that ACL (Active Clip
Limiting) protection circuitry is engaged.
9. Signal LED - Illuminates to indicate that a signal (above a minimum threshold) is present at the amplifier input, and
that the signal is being amplified.
Front Panel
Figure 4
page 5
1 4 3
2
8 9 7 456
1 4 3
2
8 9 7 456
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
0.775V 1.44V1V
GAIN
INPUT
Made in Taiwan
PARALLEL
PUSH TO RESET
~220VAC 50Hz
1800 WATTS
BRIDGE
NORMAL
STEREO
20Hz
200Hz
FREQUENCY
SUB
NORMAL
SUB
20Hz
200Hz
FREQUENCY
CH-2 CH-1
THRU THRU
INPUT INPUT
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
H
-
2
C
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
LIFT
GROUND
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Operation Mode Selection Protection Specifications Rear Panel
X-3000 Rear Panel
10 24 1412 11 20
23
26
Figure 5
21
page 6
18 19 15 16 13 17
22 25
10. Fan Outlet Ports - Cooling air enters the amplifier through the front grills and exhausts through the fans. Be sure not to
block these ports when installing the amplifier or other associated equipment. Air must flow unimpeded through these
ports.
11. Channel 2 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel two on and off.
12. Channel 2 Frequency Adj. - This pot adjust the frequency level sent to your speaker on channel two when using your
amplifier in subwoofer mode.
13. Channel 1 Frequency Adj.- This pot adjust the frequency level sent to your speaker on channel one when using your
amplifier in subwoofer mode.
14. Channel 2 XLR Input - Channel two 3-pin XLR balanced input jack.
15. Channel 1 XLR input - Channel one 3-pin XLR balanced input jack.
16. Channel 1 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel one on and off.
17. Mode Selection Switch - This recessed, three-position switch configures the amplifier for Stereo, Parallel or Bridged
Mode operation. Amplifiers are factory-configured for Stereo Mode. See section on Mode Selection for more information.
18. Channel 2 XLR THRU Jack - Channel two 3-pin XLR balanced output jack.
19. Channel 1 XLR THRU Jack - Channel one 3-pin XLR balanced output jack.
20. Circuit Breaker - X Series amplifiers have a circuit breaker - The circuit breaker shuts off during normal use, Please
switching off the AC power switch for a minute, Then turn on the AC power switch again, Push the circuit breaker to
reset the power. If the circuit breaker shuts off immediately, The amplifier needs servicing.
21. Channel 2 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
22. Channel 1 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
23. Bridged Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
24. Input Gain Switch - This three position switch let you select different input sensitivities, respectively three different
Voltage gains. The switch setting are : 1.44V, 1V or 0.775V input sensitivity.
25. AC POWER Cord - Connect to AC power supply. Be sure that the supplied volfage in your area matches the amplifiers
required voltage.
26. Ground Lift Switch - This switch is used to disconnect the internal ground signal from the amplifier chassis ground.
This may reduce the buzz that is caused from an electrical 50Hz cycle.
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
PARALLEL
STEREO
BRIDGE
THRU
PUSH TO RESET
NORMAL
SUB
FREQUENCY
20 Hz 200 Hz
SUB
NORMAL
FREQUENCY
20 Hz 200 Hz
CH-2
CH-1
GAIN
0.775V
1.44V
1V
Made in Taiwan
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
~220VAC 50Hz
5600 WATTS
H
-
2
C
OUTPUTS
1+ 1POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
INPUT THRU INPUT
LIFT
GROUND
INPUT
I
D
G
R
B
E
K
C
O
L
27. Fan Outlet Ports - Cooling air enters the amplifier through the front grills and exhausts through the fans. Be sure not to
block these ports when installing the amplifier or other associated equipment. Air must flow unimpeded through these
ports.
28. Channel 2 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel two on and off.
29. Channel 2 Frequency Adj. - This pot adjust the frequency level sent to your speaker on channel two when using your
amplifier in subwoofer mode.
30. Channel 1 Frequency Adj.- This pot adjust the frequency level sent to your speaker on channel one when using your
amplifier in subwoofer mode.
31. Channel 2 XLR Input - Channel two 3-pin XLR balanced input jack.
32. Channel 1 XLR input - Channel one 3-pin XLR balanced input jack.
33. Channel 1 Subwoofer Mode On/Off Switch - Turns the subwoofer mode for channel one on and off.
34. Mode Selection Switch - This recessed, three-position switch configures the amplifier for Stereo, Parallel or Bridged
Mode operation. Amplifiers are factory-configured for Stereo Mode. See section on Mode Selection for more information.
35. Channel 2 XLR THRU Jack - Channel two 3-pin XLR balanced output jack.
36. Channel 1 XLR THRU Jack - Channel one 3-pin XLR balanced output jack.
37. Circuit Breaker - X Series amplifiers have a circuit breaker - The circuit breaker shuts off during normal use, Please
switching off the AC power switch for a minute, Then turn on the AC power switch again, Push the circuit breaker to
reset the power. If the circuit breaker shuts off immediately, The amplifier needs servicing.
38. Channel 2 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
39. Channel 1 Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
40. Bridged Speakon Output - Use pins 1+ and 1- of this 4-pole Speakon connector to connect to your speakers input
jack.
41. Input Gain Switch - This three position switch let you select different input sensitivities, respectively three different
Voltage gains. The switch setting are : 1.44V, 1V or 0.775V input sensitivity.
42. AC POWER Cord - Connect to AC power supply. Be sure that the supplied volfage in your area matches the amplifiers
required voltage.
43. Ground Lift Switch - This switch is used to disconnect the internal ground signal from the amplifier chassis ground.
This may reduce the buzz that is caused from an electrical 50Hz cycle.
27 31 3228 2935 30
43
X-3000 X-6000 Rear Panel
Figure 7
page 7
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Operation Mode Selection Protection Specifications Rear Panel
34 41 36 33 37
38 40 39 42
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Mode Selection Protection Specifications Operation
Operation
Connecting Power / Circuit Size Requirements
X Serie s amp lifier power r equ irements are r ate d at:
a) "idl e”
b) 1/8th pow er ("typical " mus ic condition s)
The max imu m power curren t dra w rating is limi ted o nly by the rear ci rcu it breaker (2U M ODE L), a rear panel
Break er an d internal fus e are u sed for(3U mod el) C onsult the spe cif ications sec tio n for figures on t he cu rrent that
each am pli fier will dema nd. M ake sure the mai ns vo ltage is corre ct an d is the same as tha t pri nted on the rear o f
the amp lif ier. Damage cau sed b y connecting t he am plifier to imp rop er AC voltage is no t cov ered by any warr anty.
Unles s oth erwise speci fie d when ordered , UNI KA amplifiers s hip ped to custome rs ar e configured a s fol lows:
Nort h Ame ri ca
Euro pe
Asia
120VAC / 60Hz
230VAC / 50Hz
220VAC / 50Hz
NOTE: Always turn off and disconnect the amplifier from mains voltage before making audio connections. Also,
as an extra precaution, have the attenuators turned down during power-up.
Cooling System and Requirements
X Serie s amp lifiers use a tw in- tunnel force d-a ir cooling sys tem t o maintain a low, e ven o perating tem per ature.
Drawn o ut by d ual 45 cubic fee t-p er-minute (C FM) f ans on the rear pa nel , air flows from t he fr ont grill and
throu gh th e cooling fins o f the c hannel heat si nks ( dissipatin g pow er transisto r hea t), then exhau sts t hrough the
back pa nel p orts. Th e "in telligent" v ari able-speed D C fan s are controll ed by heat sink tempe rature sensing
circu its . When the ampli fie r is turned on, th e fan s briefly "rev u p," t hen slow to an idl e; th is indicates t hat t he
tempe rat ure sensing ci rcu its are operat ing n ormally. The fan speed i ncr eases only as re qui red by heat sink
tempe rat ures, keepin g fan n oise to a minimu m. Un der extreme th erm al load, the fan s wil l force a very lar ge
volum e of ai r through the he at si nks. If either h eat s ink surpasse s the m aximum allow ed te mperature, t he
sensi ng ci rcuit will shu t dow n the output, no s ign al output to the l oad . If the power tra nsf ormer overhe ats ,
anoth er se nsing circui t shu t down both chan nel o utput until th e tra nsformer coo ls to a s afe temperat ure .
IMPORTANT: To ensure optimum cooling, periodically clean the amplifier fan filters. Also make certain that there is
enough space around the back of the amplifier to allow the cooling air to escape. If the amplifiers rack-mounted, do
not use doors or covers on the front of the rack, the exhaust air must flow out without resistance. If the amplifiers are
to be housed in racks with closed backs, allow at least one (1) standard rack space of opening in the front of the
rack for every four amplifiers.
Connecting Inputs
Use eit her t he XLR input con nec tors on the rear t o sup ply audio sign als t o your UNIKA X Seri es am plifier. Both
conne cto rs accept bala nce d and unbalanc ed au dio connecti ons. (The X Series am pli fiers are conf igured
stand ard w ith "Pin 2 hot" on X LR in puts. Please n ote t hat some other Au dio a mplifiers ar e con figured with " Pin 3
hot") . The unused co nne ctor can be used t o jum per the audio in put t o another ampl ifi er input.
Connecting Outputs
Speak ers a re connected u sin g Output Bindi ng Po sts or Speakon c onn ectors, For mo re in formation, s ee th e
Mode Se lec tion section s.
Aust ra la sia
Sout h Ame ri ca
Japa n
240VAC / 50Hz
120VAC / 60Hz o r 22 0VAC / 50 Hz
100VAC / 50Hz
c) 1/3rd pow er ("continu ous " music condit ion s)
d) maxi mum r ated power (un der l imited).
Connecting amplifier outputs to oscilloscopes or other test equipment while the amplifier is in bridged
mode may damage both the amplifier and test equipment!
!
page 8
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Protection Specifications Mode Selection
Mode Selection
The three- position, re ces sed Mode Selec t swi tch (located o n the r ear panel) con fig ures the ampli fie r for
eithe r Ste reo, Paralle l or Br idged Mono Mod e. Amp lifiers are fa cto ry-configu red f or Stereo Mode .
Stereo Mode
In Stereo Mo de, both chann els o perate indep end ently, wi th th eir input atte nua tors control lin g their
respe cti ve levels. Sig nal a t Channel 1's in put p roduces outp ut at C hannel 1's out put , while signal a t
Chann el 2' s input produc es ou tput at Channe l 2's o utput. Recom men ded minimum no minal load
imped anc e for stereo ope rat ion is 2 ohms per ch ann el.
Parallel (Mono)Mode
When se t to Pa rallel(Mon o) Mo de, the amplif ier s only use Chann el 1 fo r input, and bot h out put is
contr oll ed by Channel1 a tte nuator.
Bridged Mono Mode
Bridg ed Mo no Mode straps b oth a mplifier cha nne ls together to m ake a v ery powerful , sin gle-channe l
monau ral a mplifier. One c han nel "pushes" a nd th e other "pulls " equ ally, dou bling the power ove r that of
eithe r cha nnel alone. Si gna l is applied to th e Cha nnel 1 input onl y, both output l evel is controlle d by
Chann el 1' s attenuator.
Use ext rem e caution when o per ating the ampl ifi er in Bridged Mo no Mo de. Never grou nd either side of the
speak er ca ble when the amp lif ier is in Bridge d Mon o Mode; both sid es ar e "hot." If an out put p atch panel
is used , all c onnections m ust b e isolated fro m eac h other and from t he pa nel.
The rec omm ended minimu m nom inal load impe dan ce in the Bridge d Mono Mode is 4 ohms, wh ich is the
equiv ale nt to driving bo th ch annels separ ate ly at 2 ohms. Driv ing b ridged loads o f les s than the
recom men ded minimums w ill a ctivate the IG M cir cuitry, resu lting in a loss of p owe r, and may also lea d to a
therm al pr otect condit ion .
page 9
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
PARALLEL
STEREO
BRIDGE
THRU
PUSH TO RESET
NORMAL
SUB
FREQUENCY
20 Hz 200 Hz
SUB
NORMAL
FREQUENCY
20 Hz 200 Hz
CH-2
CH-1
GAIN
0.775V
1.44V
1V
Made in Taiwan
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
~220VAC 50Hz
5600 WATTS
H
-
2
C
OUTPUTS
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
INPUT THRU INPUT
LIFT
GROUND
INPUT
I
D
G
R
B
E
K
C
O
L
0.775V 1.44V1V
GAIN
INPUT
Made in Taiwan
PARALLEL
PUSH TO RESET
~220VAC 50Hz
1800 WATTS
BRIDGE
NORMAL
STEREO
20Hz
200Hz
FREQUENCY
SUB
NORMAL
SUB
20Hz
200Hz
FREQUENCY
CH-2 CH-1
THRU THRU
INPUT INPUT
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
H
-
2
C
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
LIFT
GROUND
Stereo Mode Connections
CH.1 OUTPU TCH.2 OUTPU T
Figure 8
Figure 9
page 1 0
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Protection Specifications Mode Selection
CH.1 OUTPU TCH.2 OUTPU T
STE REO
STE REO
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
PARALLEL
STEREO
BRIDGE
THRU
PUSH TO RESET
NORMAL
SUB
FREQUENCY
20 Hz 200 Hz
SUB
NORMAL
FREQUENCY
20 Hz 200 Hz
CH-2
CH-1
GAIN
0.775V
1.44V
1V
Made in Taiwan
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
~220VAC 50Hz
5600 WATTS
H
-
2
C
OUTPUTS
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
INPUT THRU INPUT
LIFT
GROUND
INPUT
I
D
G
R
B
E
K
C
O
L
0.775V 1.44V1V
GAIN
INPUT
Made in Taiwan
PARALLEL
PUSH TO RESET
~220VAC 50Hz
1800 WATTS
BRIDGE
NORMAL
STEREO
20Hz
200Hz
FREQUENCY
SUB
NORMAL
SUB
20Hz
200Hz
FREQUENCY
CH-2 CH-1
THRU THRU
INPUT INPUT
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
H
-
2
C
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
LIFT
GROUND
Parallel Mode Connections
Figure 11
Figure 10
page 11
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Protection Specifications Mode Selection
CH.1
INPUT
PARAL LE L
STERE O
BRIDG E
CH.1 OUTPU TCH.2 OUTPU T
CH.1 OUTPU TCH.2 OUTPU T
STE REO
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
0.775V 1.44V1V
GAIN
INPUT
Made in Taiwan
PARALLEL
PUSH TO RESET
~220VAC 50Hz
1800 WATTS
BRIDGE
NORMAL
STEREO
20Hz
200Hz
FREQUENCY
SUB
NORMAL
SUB
20Hz
200Hz
FREQUENCY
CH-2 CH-1
THRU THRU
INPUT INPUT
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
H
-
2
C
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
LIFT
GROUND
Bridge Mode Connections
page 1 2
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Protection Specifications Mode Selection
PARALLEL
STEREO
BRIDGE
THRU
PUSH TO RESET
NORMAL
SUB
FREQUENCY
20 Hz 200 Hz
SUB
NORMAL
FREQUENCY
20 Hz 200 Hz
CH-2
CH-1
GAIN
0.775V
1.44V
1V
Made in Taiwan
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
Serial No.:
~220VAC 50Hz
5600 WATTS
H
-
2
C
OUTPUTS
1+ 1-
POS NEG
CH- 2
1+ 1-
POS NEG
BRIDGE
H
-
1
C
K
C
O
L
K
C
O
L
1+ 1-
POS NEG
CH- 1
INPUT THRU INPUT
LIFT
GROUND
INPUT
I
D
G
R
B
E
K
C
O
L
CH.1
INPUT
PARAL LE L
STERE O
BRIDG E
BRIDGE OUT PUT
BRIDGE OUT PUT
STE REO
Figure 13
Figure 12
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Mode Selection Specifications Protection
Limiter
The X series comes with a built-in limiter. When the input signal overloads, the "CLIP LED's" indicate a signal overload, at
this time, the master volume should be lowered to reduce distortion. If the input gain level is not reduced the built-in limiter
will activate. During signal overload, the limiter will reduce the input audio signal enough to minimize the amount of
clipping. A limiter takes the gain of an overloading signal and reduces it, the reduction in gain reduces distortion that can
cause damage to your speakers and amplifier. During normal operation below clipping, and momentary clips on peaks, the
limiter does not affect the audio signal and is inaudible. It will allow brief clipping of peaks and will only activate when
continuous, hard clipping occurs. During excessive clipping the limiter will reduce the audio signal enough to minimize the
amount of clipping. When the input signal decreases enough that clipping ends, the limiter will deactivate and cease its
gain reduction. The limiter has a fixed threshold and can not be adjusted.
Safe Power Levels at Different Output Loads
8-Ohm Loads: The amplifier can operate at practically any power level without risk of overheating. However, if it is pushed
hard enough to continually light the" CLIP" indicator, the amplifier's average output power can reach 150 watts.
4-Ohm Loads: If the "CLIP" indicator flashes occasionally, the amplifier is approaching its maximum long-term power
capacity. If it is lit about half the time, the amplifier channel will probably go into thermal protection within a few minutes.
2-Ohm Loads: Except for an occasional flash, keep the "CLIP" indicator dark to avoid overheating the amplifier channel.
Clipping should be kept to a reasonable minimum. An amplifier's peak current draw at full output power into 2 ohms is
several times what the "normal" draw is, but its various protection circuits will prevent this condition lasting more than a
minute or two.
Short Circuit Protection
The X series amplifiers all come with built-in Output Short Circuit Protects. The Output Short Circuit Protection protects the
output devices of the amplifier from short circuits and stressful loads. If your speaker lines short, the amplifier
automatically detects this problem and discontinues operation for that channel. If one side of your amplifier becomes
shorted and goes into protect mode, the other side will continue to operate normally. During short circuit protection, the
"Clip" LED will light simultaneously indicating amplifier fault. The channel output during the "Short Circuit Protection" will
be interrupted (i.e. no sound output) Short Circuit Protection can usually be traced back to the signal output line (i.e.
speaker line). Check the line from the output terminal of the amplifier to the speaker. If this line good, check the internal
speaker connections and components. A short circuit will usually be traced to a bad cable or a bad speaker component
and is rarely traced to the amplifier itself.
Thermal Protection
Dual variable speed fans on the X series amplifier provide adequate cooling. During low level output the fans run at normal
speeds. During high output and as heat raises, (exceeding 50° C), the fans will run at higher speeds to aid the cooling
process. If the heatsink temperature exceeds 91° C, the amplifier will mute until the amplifier cools down. When the
amplifier cools below 90° C, the amplifier will return to normal operations. Be sure not to operate your amplifier below the
minimum load ratings to reduce the risk of overheating problems.
Input/Output Protection
The input circuits are isolated by 10k resistors. An ultrasonic network uncouples RF from the output and helps keep the
amplifier stable with reactive loads.
Operating Voltage (AC Mains)
The AC main voltage is printed on the back where the AC power input. Connecting to the wrong voltage is dangerous and
may damage the amplifier. Always be sure the source voltage for your areas matches the required voltage for your
amplifier.
Protection
page 1 3
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
Front Views & Rear Views Introduction Unpacking Installation and Mounting Front Panel Rear Panel Operation Mode Selection Protection Specifications
Specifications
MODEL NO. X-3000 X-3000 X-6000
page 1 4
Output Power:
2 ohm,1 khz 1% THD
4 ohm,1 khz 1% THD
8 ohm,1 khz 1% THD
(Bridge Mode, mono)
4 ohm,1 khz 1% THD
8 ohm,1 khz 1% THD
Totel Harmonoic
Distortion:
20Hz~20kHz,@rated
output power, 8 ohms
Input Sensitivity and
Impedance:@rated
output power, 8 ohms
Dimensions & Weight
Height
Width
Depth
Weight
Frequency Response
+/- 1db, 1w RMS, 8ohms
+/-0.2db, @rated
output, 8 ohms
Hum&Noise:Below rated
output,8 ohms
Power Consumption:
@rated output power,
8ohms
Cooling System:
1250w RMS Stereo.
800w RMS Stereo.
500w RMS Stereo.
2500w RMS
1600w RMS
1800w RMS Stereo.
1350w RMS Stereo.
900w RMS Stereo.
3600w RMS
2700w RMS
2800w RMS Stereo.
2000w RMS Stereo.
1200w RMS Stereo.
5600w RMS
4000w RMS
Less than 0.02%
selectable (0.775V,1V and 1.44V)
3.5"(8.8cm)
19"(48.3cm)
17.5"(44.5cm)
42.7lbs.(19.4kgs)
5.25"(13.3cm)
19"(48.3cm)
20.5"(52.2cm)
68.64lbs.(31.2kgs)
5.25"(13.3cm)
19"(48.3cm)
20.5"(52.2cm)
70.8lbs.(32.2kgs)
10Hz - 40kHz
20Hz - 20kHz
100dB, unweighted
5A@230V AC 9A@230V AC 10A@230V AC
Dual 2-Speed Fans (2U Model) Dual Variable Speed Fans(3U Model) and Heat sinks
X-3000 <2U MODEL> / X-4000 X-6000 <3U MODEL>
UNiKA
P R O F E S S I O N A L AU D I O
UNiKA
P R O F E S S I O N A L AU D I O
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