OPERATION MANUALS
NP-3000
NP-4500
NP-6000
NP-8000
PROFESSIONAL POWER AMPLIFIERS
Professional Power Amplif iers
UNiKA
NP-SERIES
Stereo
Bridge Parallel
Sig Clip
Prot Li mi te r Limiter
on on
Ch an ne l B
0
10
0
10
Ch an ne l A
Prot
Clip S ig
Po we r
N P - 3 0 0 0
Professional Power Amplifier
UNiK A
Stereo
Bridge Parallel
Sig Clip
Prot Li mi te r Limiter
on on
Ch an ne l B
0
10
0
10
Ch an ne l A
Prot
Clip S ig
Po we r
N P - 6 0 0 0
Professional Power Amplifier
UNiK A
Stereo
Bridge Parallel
Sig Clip
Prot Li mi te r Limiter
on on
Ch an ne l B
0
10
0
10
Ch an ne l A
Prot
Clip S ig
Po we r
N P - 4 5 0 0
Professional Power Amplifier
UNiK A
Stereo
Bridge Parallel
Sig Clip
Prot Li mi te r Limiter
on on
Ch an ne l B
0
10
0
10
Ch an ne l A
Prot
Clip S ig
Po we r
N P - 8 0 0 0
Professional Power Amplifier
UNiK A
Page 1
Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's
enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons
Intended to alert the user of the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the product.
CAUTION: Risk of electrical shock -DO NOT OPEN
CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside
Refer servicing to qualified service personnel.
WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture.
Before using this appliance, read the operating guide for further warnings.
WARNING!
For optimun performance and reliability DO NOT
PRESENT THE AMPLIFIER WITH A SPEAKER
LOAD OF LESS THAN 2 OHMS. OR A
COMBINATION OF SPEAKERS THAT
TOGETHER ARE LESS THAN 2 OHMS!
Using one speaker, it must be rated at 2 ohms
minimum.
Using two speakers, they must be rated each at 4
ohms minimum.
Using three speakers, they must be rated each at 8
ohms minimum.
AVIS !
Pour assurer la Fiabilte et obtenit une performance
optimale, ne soumette jamais 1'amplificateur a une
charge d'impedance totale inferieure a 2 ohms, ni
avec un H.P. ni en combinaison des H.P.
AVEC un H.P., il Faut une charge d'impedance
minimum de 2 ohms.
AVEC deux H.P., il Faut pour chaoun une charge
d'impedance minimum de 4 ohms.
AVEC trois H.P., il Faut pour chaoun une churge
d'impedance minimum de 8 ohms.
FRONT PANEL...................................2
REAR PANEL.....................................2
INPUTS..............................................3
THRU.................................................3
OUTPUT.............................................3
CLIP LIMITER.....................................3
INPUT FILTER....................................4
PARALLEL INPUT MODE...................4
BRIDGE MONO MODE......................5
STEREO MODE.................................6
PROTECTION...................................6
SPECIFICATONS...............................7
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Page 2
THRU
CH-B
INPUT
CH-B
INPUT
CH-A
THRU
CH-A
120V~60Hz
CH-B
BRIDGE
CH-A
ON
OFF
ON
OFF
SPEAKON
CH-B CH-A
PIN OUT
1+
2+
1+
1-
2-
2+
POS
POS
POS
NEG
NEG
NEG
CH- A
CH- B
BRIDG E
PIN OUT
1+ 1-
POS N EG
CH- B
CAUTION MINIMUM LOAD IM PEDA NCE
STEREO 2 Ohm
BRIDGE
4
Ohm
ON=50Hz . OFF =30H z
FILTER ON /OFF
3
4
STEREO
PARALLE L
BRIDGE
UP
UP
DOWN
INPUT
UP
DOWN
UP
CH-B
2
1
CH-A
AMP
S/N.:
1.POWER SWITCH
2.STEREO INDICATOR
3.BRIDGE INDICATOR LED
4.PARALLEL INDICATOR LED
5.GAIN CONTROL (CHANNEL A)
6.GAIN CONTROL (CHANNEL B)
7.SIGNAL INDICATOR LED (CHANNEL A)
8.SIGNAL INDICATOR LED (CHANNEL B)
9.CLIP INDICATOR LED (CHANNEL A)
10.CLIP INDICATOR LED (CHANNEL B)
11.PROTECT INDICATOR LED (CHANNEL A)
12.PROTECT INDICATOR LED (CHANNEL B)
13.LIMITER SWITCH (CHANNEL A)
14.LIMITER SWITCH (CHANNEL B)
15.COOLING VENTS
1 2 36 5 4
78
10
9
11
12
16 1415 1613
1.TRS INPUT (CHANNEL A)
2.XLR INPUT (CHANNEL A)
3.THRU OUTPUT (CHANNEL A)
4.TRS INPUT (CHANNEL B)
5.XLR INPUT (CHANNEL B)
6.THRU OUTPUT (CHANNEL B)
7.BINDING POST OUTPUT (CHANNEL A)
8.BINDING POST OUTPUT (CHANNEL B)
9.SPEAKON OUTPUT (CHANNEL A)
10.SPEAKON OUTPUT (CHANNEL B)
11.AC POWER INLET CONNECTOR
12.POWER RESET
13.AMP MODE SWITCH
14.INPUT MODE SWITCH
15.LOW CUT FUNCTION SWITCH
16.FAN & FILTER COVER
Stereo
Bridge Parallel
Sig Clip
Prot Li mi ter Limi te r
on on
Ch an nel B
0
10
0
10
Ch an nel A
Prot
Clip S ig
Po we r
N P - 8 0 0 0
Professional Power Amplifier
UNiKA
13 1411 12 1515
1515
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Page 3
Stereo
Bridge Parallel
Sig
Clip
Prot Limiter Limiter
on on
Channel B
0
10
0
10
Channel A
Prot
Clip Sig
Powe r
N P - 8 0 0 0
Professional Power Amplifier
UNiKA
limiter
Inputs
Two input connectors, XLR jack and 6.3mm(1/4") TRS jack for both balance/unbalance.
Shield
Cold
Hot
Cold
Hot
1
3
2
Shield
Cold
Hot
THRU
Plug the signal source outputs into first amplifier's input, patch from the amplifier's thru jacks to
the next amplifier's input, and so on, raising- chaining as many amplifier's as there is no exccessive
level loss.
OUTPUT
Strip back insulation 13-mm. insert wire fully, tighten barrel.
Clip Limiter
WHAT IT IS
When the audio signal drives the Amp's output circuit beyond its power capability, it clips, flattening
the peaks of the waveform. The clip limiter detects this and reduces the gain to minimize the amount of
overdrive. To preserve as much of the program dynamics as possible, limiting reduces the average
program level until peaks barely clip. Each channel has its own clip limiter, and you can switch it on or
off independently, as shown at front panel.
WHEN TO USE IT (OR NOT)
When driving full-range speakers, clip limiting reduces high frequency distortion caused by bass
overloads. It also protects higher frequency drivers from excess overdrive and harsh clipping
harmonics. When driving subwoofers, some users let the amplifier clip without limiting because it
gives extra "punch" to kick drums and similar sounds.
CAUTION: In bi-amp systems excessive limiting will affect the frequency balance.
2
1
3
2
3
1
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Input filter
WHAT IT IS
The low-frequency (LF) Filter rolls signals below either 30Hz or 50Hz. This improves bass
performance by limiting sub-audio cone motion, making more power available for the speaker's rated
frequency range. The filter settings for each channel are controlled individual through the DIP switch
settings shown. When the filter is turned off, a 5Hz roll off protects against DC or deep sub-audio inputs
WHEN TO USE IT (OR NOT)
As a rule, your speakers will sound better with proper filtering. Unless you already have filtering in a
preceding device, match the setting to the low frequency rating of your speakers. Vented (bass reflex,
ported, etc.) speakers are especially sensitive to cone over-excursion at frequencies below their rated
limit. The 50Hz filter works well with most compact full-rage speakers, and has a slight boost at 100Hz
for greater fullness. The 30Hz filter is intended for subwoofers and large full-range cabinets.
The "off" position should be used only for applications such as studio playback monitoring, where you
need to know if there are unwanted sub-audio signals present in your mix.
DIP Switch settings
Page 4
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
ON
OFF
1 2 3 4
ON
OFF
ON
OFF
1 2 3 4
Low cut filter ON cut point 30Hz
Low cut filter ON cut point 50Hz
Low cut filter ON cut point 30Hz
Low cut filter ON cut point 50Hz
Low cut filter ON cut point 30Hz
Low cut filter ON cut point 50Hz
CH-A
CH-B
CHA & CH-B
CHA & CH-B
CH-A
CH-B
Parallel input mode
WHAT IT IS
"Parallel input" switches let you operate the amplifier in parallel mode, delivering the same signalto
both channels without using a Y-cable. Each channel drives its own speaker load, with independent
gain, filtering, and clip limiting. Set amp switch "Up", input switch "Down". With the inputs in parallel,
and only one input signal, you can use the other set of input connectors to carry the signal to other amps.
This is called "THRU" .
WHEN TO USE IT
Parallel the inputs when driving two speakers with one input signal (parallel mode) while keeping separate
Control of both channel's gain, filtering, and limiting.
NOTE: If you are using a balanced signal , use only balanced patch cables; even one unbalanced cable
will unbalance the entire signal chain, possibly causing hum.
NOTE: Turn off the "parallel input" switches when feeding the amp two separate signals.
STEREO
PARALLEL
BRIDGE
UP
UP
DOWN
INPUT
UP
DOWN
UP
AMP
Parallel mono mode
CH-A
SIGNAL INPUT
CH-A
CH-B
CH-B
NO INPUT!
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Bridge mono mode
WHAT IT IS
Bridged mono combines the power of both amp channels channel into one speaker, resulting in twice the
voltage swing, four times the peak power, and approximately three times the sustained power of a single
channel. This mode uses channel A's input, gain control, input filter, and clip limiter, Channel B's should
not be used.
WHEN TO USE IT (OR NOT)
Use bridged mono to deliver the power of both channels to a single 8-or 4- Ohm load. Set amp switch
"Down", Set input switch "Up"
BRIDGED-MONO PRECAUTIONS: This mode outs a high demand on the amplifier and
speaker. Excessive clipping may cause protective muting or speaker damage. Be sure the speaker
has a sufficient power rating.
STEREO
PARALLEL
BRIDGE
UP
UP
DOWN
INPUT
UP
DOWN
UP
AMP
Bridge mono mode
CH-A
INPUT
CH-B
INPUT
NOT USED
CH-A
CH-B
+
CH-B
BRIDGE
CH-A
4 , 8 , 16
2
SPEAKON
CH-B CH-A
PIN OUT
1+
2+
1+
1-
2-
2+
POS
POS
POS
NEG
NEG
NEG
CH- A
CH- B
BRIDGE
PIN OUT
1+ 1-
POS NEG
CH- B
2-
1-
1+
2+
4 , 8 , 16
2
Page 5
Precaution
If the load is 4 Ohms or less and prolonged overloads occur, the amplifier will probably mute for several
seconds during peaks, and the circuit Breaker may trip. Do not use 2 Ohm loads.
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
STEREO MODE
This is the "normal" way of using the amplifier, in which each channel is fully independent. Separate signals
connect at the inputs, ithe gain knobs control their respective channels, and separate speakers connect to each
output. Set amp switch "UP", Input Switch "UP"
STEREO
PARALLEL
BRIDGE
UP
UP
DOWN
INPUT
UP
DOWN
UP
AMP
Bridge mono mode
CH-A
INPUT
CH-B
INPUT
STEREO, BI-AMP, 2-CHANNEL
CH-A
CH-B
Page 6
DC
+
-
PROTECTION
1. TURN-ON / TURN-OFF MUTING
The amplifier output are muted for couple of seconds after turn-on,and immediately at turn-off
2.SHORT CIRCUIT PROTECTION:
The output short circuit protects the output devices from short circuits and
stressful loads.
3.THERMAL PROTECTION:
Dual 2-speed fans provide adequate cooling airflow. But if the heat sink temperature
should climb above 90 c, the output will mute until the amplifier cools down.
4.DC FAULT
The outputs will mute if dc or excessive subsonic energy appears at them.
5.INPUT / OUTPUT PROTECTION:
The input circuits are insulated by 10K Resistors. An ultrasonic network decouples RF from
the output and helps keep the amplifier stable with reactive loads.
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Page 7
SPECIFICATIONS
MODEL NO. NP-3000 NP-4500 NP-6000 NP-8000
2ohms 570W 2ohms 1050W
2ohms 1100W 2ohms 1460W
4ohms 490W 4ohms 725W 4ohms 960W 4ohms 1280W
8ohms 300W 8ohms 450W 8ohms 600W 8ohms 800W
R.M.S. Output Power Bridged Mono
4ohms/8ohms
1KHz 1% THD
1140W/980W 2100W/1450W
2200W/1920W 2920W/2560W
Input Sensitivity
0.775V 0.775V
0.775V 0.775V
Frequency Response (20Hz~20KHz)
±0.2dB ±0.2dB
0.2dB 0.2dB
Total Harmonic Distortion
<0.02% <0.01%
<0.01% <0.025%
Crosstalk @ 1KHz
>70dB >70dB
>70dB >60dB
Damping Factor
>500 >500
>560 >600
Signal To Noise Ratio
below rated power 20Hz to 20KHz,
A-Weighted
>100dB >100dB
>100dB >100dB
Power Consumption
@ Maximum Output Power 8ohms
650W
5.91A@110V
990W
9A@110V
1370W
12.45A@110V
1900W
17.27A@110V
Output Circuitry
CLASS AB CLASS AB CLASS H CLASS H
Cooling System
Dual 2-Speed Fan Dual 2-Speed Fan Dual 2-Speed Fan Dual 2-Speed Fan
Dimensions (H x W x D)
88 x 483 x 332 mm 88 x 483 x 332 mm
88 x 483 x 434 mm 88 x 483 x 434 mm
Weight
13.7kg 14kg 19.4kg 23kg
Rack Space
2U 2U 2U 2U
R.M.S. Output Power 2 CH Driven
2ohms/4ohms/8ohms
1KHz 1% THD
PROFESSIONAL POWER AMPLIFIERS
UNiKA
NP-SERIES
Dual 2-speed fans and heatsinks
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
Unika NP-4500 Le manuel du propriétaire
- Taper
- Le manuel du propriétaire
dans d''autres langues
- English: Unika NP-4500 Owner's manual
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