User Instructions
This booklet contains important information concerning the proper and safe operation of your new amplifier..
MS-Series
MS550 / MS750 / MS1050 / MS2050 / MS3050
Made in Taiwan
Profe ssion al Power Amp lif iers
Index
04 Introduction
05 Front Panel
06 Rear Panel
07 Set Up
11 Operating Modes
11 Protection
12 Specifications
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-2050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-3050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-1050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-750
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-550
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
IMPORTANT SAFETY INSTRUCTIONS
pag e 2
This symbol is intended to alert the user to the presence of
non insulated "dangerous voltage" within the product's
enclosure that may be of sufficient magnitude to constitute
a risk of electric shock to persons.
!
CAUTION: Risk of the electrical shock - DO NOT OPEN!
CAUTION: To reduce the risk of electrical shock, do not remove cover. No user serviceable parts inside. Refer all servicing
to qualified service personnel.
WARNING: To prevent electrical shock or f re hazard, do not expose this amplifier to rain or moisture. Before using this
amplifier read the user manual for further warnings.
This symbol is intended to alert the user of
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the product.
Este símbolo tiene el propósito de alertar al usuario de la
presencia de “voltaje peligroso“ que no tiene aislamiento
dentro de la caja del producto que puede tener una
magnitud sufciente como para constituir riesgo de corrientazo.
!
PRECAUCIÓN: Riesgo del choque eléctrico - NO SE ABRA
PRECAUCIÓN: Para disminuir el riesgo de choque eléctrico, no quite la cubierta. No hay piezas adentro que el usario puede
reparar. Deje todo mantenimiento al los técnicos cualifcados.
ADVERTENCIA: Para prevenir choque eléctrico o riesgo de incendios, no deja expuesto a la lluvia o a la humedad este amplif
cador. Antes de usar este amplif cador, lea mas advertencias en la guia de operacion.
Este símbolo tiene el propósito de alertar al
usuario de la presencia de instrucciones
importantes sobre la operación y
mantenimiento en la literatura que vienc con el producto.
Ce symbole est utilisé pur indiquer à l’utilisateur la
présence à l'intérieur de ce produit de tension non-isolée
dangereuse pouvant être d'intensité suff sante pour
constituer un risque de choc électrique.
!
ATTENTION: Risque de choc électrique - NE PAS OUVRIR!
ATTENTION: Afin de réduire le risque de choc électrique, ne pas enlever le couvercle. Il ne se trouve à l’intérieur aucune piéce
pouvant être réparée par l'utilisateur. Confier l'entretien à un personnel qualifé.
AVERTISSEMENT: Afin de prévenir les risque de décharge ou de feu, n’exposez pas cet appareil à la pluie ou à l’humidité.
Avant d’utiliser cet amplificateur, lisez les avertissements supplémentaries situés dans le guide.
Ce symbole est utilisé pour indiquer à l’utilisateur
qu'il trouvera d'importantes instructions
importantes sur l'utilisation et l'entretien de
l'appareil dans la littérature accompagnant le produit.
Dieses Symobl soll den Anwender vor unisollierten
gefährlichen Spannungen innerhalb des Gehäuses warnen,
die von Ausreichender Stärke sind, um einen elektrischen
Schlag verursachen zu können.
!
VORSICHT: Risiko - Elektrischer Schlag! Nicht öffnen!
VORSICHT: Um ddas Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung enfernen. Es bef nden sich keine
Teile darin, die vom Anwender repariert werden könnten. Reparaturen nur von qualifzierte Fachpersonal
durchführen lassen.
ACHTUNG: Um einen elektrischen Schlag oder Feuergefahr zu vermeiden, sollte diesen Gerät nicht dem Regen oder
Feuchtigkeit ausgesetz werden. Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
Dieses Symobl soll den Benutzer auf wichtige
Instruktionen in der Bedienungsanleitung
aufmerksam machen, die Handhabung und
Wartung des Produkts betreffen.
CAUTION
Do not open -
risk of electric shock
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE THE COVER. THERE ARE NO USER
SERVICEABLE PARTS INSIDE. REFER ALL SERVICE TO
YOUR UNiKA DEALER.
The l ightn ing fla sh with a n arrow t riang ular
sym bol is in tende d to aler t the use r to the
pre sence o f non ins ulate d “dang erous
vol tage” w ithin t he prod ucts en closu re, and
may b e of suff ici ent magni tud e to co nsti tut e
a ris k of elec tric sh ock.
The e xclam ation p oint tr iangu lar sym bol is
int ended t o alert t he user t o the pre sence o f
imp ortan t opera ting an d maint enanc e
(se rvici ng) ins truct ions in t he user m anual
acc ompan ying th e ampli fier.
!
!
FOR O PTIMU M PERFO RMANC E AND R ELIAB ILITY
DO NO T PRESE NT THE AMPL IFIER W ITH A
SPE AKER LO AD OF LES S THAN 2 OH MS OR ANY
COM BINATI ON OF SPE AKER S THAT TO GETHE R ARE L ESS
THA N 2 OHMS!
USI NG ONE SP EAKER , IT MUST BE R ATED AT 4 OR MORE
OHM S. USIN G TWO SPE AKER S, THEY MU ST RATED E ACH AT 4
OR MO RE OHMS .
USI NG THRE E SPEAK ERS, THE Y MUST BE R ATED E ACH AT 8
OR MO RE OHMS .
POU R ASS URER LA FI ABILE TE ET OBTE NIT UNE
PER FORMA NCE OPT IMALE , NESOU METTE
JAM AIS L’AM PLIFI CATEUR A UNE C HARGE
D’I MPEDA NCE
TOTAL E INFER IEURE A 2 OHM S, NI AVEC UN H .P. N EN
COM BINAI SON DES H .P.
AVEC U N H.P., IL FAUT UN E CHARG E D’IMP EDANC E MINIM UM
DE 2 OH MS.
AVEC D EUX H.P., FAU T POUR CH AOUN UN E CHARG E
D’I MPEDA NCE MIN IMUM DE 4 O HMS.
AVEC TR OIS H.P., FA UT POUR C HAOUN U NE CHUR GE
D’I MPEDA NCE MIN IMUM DE 8 O HMS.
!
!
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 3
Intr oduction Front Pan el Rear Pane l Set Up Operat ing Modes Pr otectio n Specific ation s
Safety Precautions
To reduce t he ri sk of e lectr ica l sho ck or f ire, do no t exp ose t his uni t rai n
or mois tur e.
Do not sp ill w ate r or othe r liq uid s into or on to yo ur un it.
Do not at tem pt to o perate thi s uni t if the power c ord h as be en fray ed or
broke n.
Do not at tem pt to r emove o r bre ak of f the g rou nd pron g fro m the
elect ric al co rd. This prong is u sed t o red uce the r isk o f ele ctrical sh ock
and f re in c ase o f an in terna l sho rt.
Disco nne ct ma in powe r bef ore m aking any ty pe of c onn ectio n.
Do not re mov e the c over un der a ny co nditions . The re ar e no us er
servi cea ble p arts in sid e.
Never p lug t his u nit in to a d imm er pa ck.
Alway s be su re to m ount th is un it in a n area that wi ll al low p roper
venti lat ion . Allow ab out 6 ” (15 cm) betwee n thi s dev ice and a w all .
Do not at tem pt to o perate thi s uni t, if it becom es da mag ed.
This un it is i nte nded fo r ind oor u se only, us e of this p rod uct o utdoors
voids a ll wa rra nties .
Durin g lon g per iods of n on- use , disconne ct th e uni t’s m ain power.
Alway s mou nt th is unit i n a saf e and s table mann er.
Power c ord s sho uld be ro ute d so th ey are not lik ely t o be wa lked on ,
pinch ed by i tem s place d upo n or ag ainst them .
Clean ing - The o utsid e of th e uni t should be wi pe do wn wi th a soft c lot h
and mil d cle ane r when ne ede d.
Heat -T he am pli fier sh oul d be si tuated awa y fro m hea t sourc es su ch as
radia tor s, he at regi ste rs, s toves, or ot her a ppl iance s (in clu ding
ampli fie rs) t hat pro duc e hea t.
The fix tur e sho uld be se rvi ced b y qualifie d ser vic e perso nne l whe n:
A. Th e power -su ppl y cord or the pl ug ha s bee n damag ed.
B. Obje cts h ave f allen , or li qui d has been spi lle d int o the uni t.
C. Th e appli anc e has b een expose d to ra in or w ater.
D. Th e fixtu re do es no t appear to op era te no rmall y or ex hib its a marked
chang e in pe rfo rmanc e.
Congr atu lat ions an d tha nk yo u for purcha sin g MS se ries am pli fie r. Thi s
ampli fie r is a re prese nta tio n of Power Stu dio ’s co nti nuing comm itm ent t o
produ ce th e bes t and hig hes t qua lity audio p rod uct s at an affordabl e pri ce.
These a mpl ifi ers are d esi gne d to provide a b ig im pac t in soun d
repro duc tio n. Plea se re ad an d understa nd th is ma nual co mpl ete ly before
attem pti ng to o perat e you r new a mplifier. This b ook let c ontains im por tan t
infor mat ion c oncer nin g the p roper and sa fe op era tion of y our n ew am plifier.
Unpacking: Ev ery M S ser ies amp lif ier h as been thor oug hly t ested a nd
has bee n shi ppe d in perf ect o per ating cond iti on. C arefu lly c hec k the
shipp ing c art on for da mag e tha t may have occ urr ed du ring sh ipp ing . If the
carto n app ear s to be dam age d, ca refully in spe ct yo ur unit f or an y dam age
and be su re al l acc essor ies n ece ssary to ope rat e the s ystem h ave a rri ved
intac t. In t he ev ent dam age h as be en found or pa rts a re mi ssing , ple ase
conta ct yo ur de aler fo r fur the r instruct ion s.
Installatio n: This a mpl ifi er is design ed to m oun t into a st and ard
19”ra ck. T he fr ont p anel provi des f our h oles us ed to s cre w the unit int o a
rack. The un it al so pr ovides a way t o rea r mou nt the un it in to a ra ck for
added s ecu rit y. Rea r mounting t he un it is e speci all y rec ommended i f the
unit is t o mou nte d into a mo bil e rac k.
Introduction
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 4
Front Panel View
Introdu ction Rear Pane l Set Up O peratin g Modes Prot ectio n Spe cific ations Fron t Panel
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-2 050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-3 050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-1050
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-7 50
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-5 50
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
Front Panel Control
Figure 1
pag e 5
1
UNiKA
Introdu ction Rear Pane l Set Up O peratin g Modes Prot ectio n Spe cific ations Fron t Panel
SIGNAL SIGNAL
CLIP CLIP
CH-1 CH-2
MS-550
POWER
ONOFF
10 100 0
PROFESSIONAL STEREO AMPLIFIER
UNiKA
2 3 4
5 6 7 8 9
1. Power Switch - This switch is used to control the units main power.
2. Cooling Vents - These vents are used for proper cooling. Never block these
vents and keep them clean at all times.
3. Channel 1 Gain Control - This rotary knob is used to control the output
signal of channel 1. Turning the knob in clockwise direction will increase
signal output.
4. Channel 2 Gain Control -This rotary knob is used to control the output
signal of channel 2. Turning the knob in a clockwise direction will increase
signal output.
5. Power Indicator - This blue LED will glow when main power is applied to the unit.
This light may continue to glow brief y after main power has been turned off, this is
normal.
6. Channel 1 Clip Indicator - This red LED will begin to flash when channel 1
begins to overload (clip). At this point channel one will begin to distort. Under
heavy clipping activity lower the channel 1 gain control to reduce the risk of
damage to your speakers and amplifier. This LED may glow when the unit has
been turned off, this is normal.
7. Channel 1 Signal Indicators - These green LED will glow according to the
average signal output.
8. Channel 2 Clip Indicator - This red LED will begin to flash when channel 2
begins to overload (clip). At this point channel 2 will begin to distort. Under
heavy clipping activity lower the channel 2 gain control to reduce the risk of
damage to your speakers and amplifier. This LED may glow when the unit
has been turned off, this is normal.
9. Channel 2 Signal Indicators - These green yellow LED will glow according
to the average signal output.
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 6
Figure 2
1 2 4
5
8 11
ground. The XLR jack is configured as follows; Pin 2 positive, pin 3 negative,
pin one ground. See page 8 for more details on input configuration.
7. Channel 1 Input - Connect the input source for channel one to either the
balance XLR or the balanced/unbalanced 1/4” input jacks. The 1/4” TRS plug
is configured as follows; Tip is positive, Ring is negative and Sleeve is
ground. The XLR jack is configured as follows; Pin 2 positive, pin 3 negative,
pin one ground. See page 8 for more details on input configuration..
8. Mono-Bridge / Stereo Selectable Switch - This switch changes the
amplifier operating mode from either stereo or mono bridge. Amplifiers arrive
to you preset in the stereo operation mode.
9. Channel 2 Speaker Output - 5 Way Binding Post - Connect your channel
two speakers to channel two output.
10. Channel 1 Speaker Output - 5 Way Binding Post - Connect your channel
one speakers to channel one output.
11. A/C Power Input - Plug this cable in to a standard 220V wall outlet. Be sure
that supplied voltage matches that of the required voltage of your amplifier.
Never plug your amplifier in to a wall outlet that does not match the required
voltage of your amplifier, serious damage may occur to your unit.
1. THRU - These connectors are parallel connected to the Input connectors
and used to connect the input signal to the other power amplifier.
2. Cooling Fan - This is a dual speed cooling fan. This fan is used to cool the
internal parts of the amplifier when in use. Never block the fan in any way
or mount in an enclose rack, doing so may cause the amplifier to overheat
and fail.
3. Output - These are 4 poles SPEAKON type connector for connecting the
power amplifier outputs to the speakers.
4. Circuit Breaker - This breaker is designed to protect the amplifier and your
speakers in the event of an AC overload. In the event of an electrical
overload the breaker will pop-out. To reset the breaker, push it in. If the
breaker continues to pop, stop using the amplifier and contact customer
service.
5. Sensitivity selector - This selector sets the input level for rated power
output.
6. Channel 2 Input - Connect the input source for channel two to either the
balance XLR or the balanced/unbalanced 1/4” input jacks. The 1/4” TRS
plug is configured as follows; Tip is positive, Ring is negative and Sleeve is
Rear Panel Control
6 7 9 10
3
Introdu ction Fron t Panel Set Up Opera ting Mode s Protecti on Specifi catio ns Rear P anel
UNiKA
6
A
M
P
MS550 / MS750 / MS1050 / MS2050 / MS3050
SET UP
INPUTS - The MS series amplifiers allows you to use two types of input connectors, XLR female jack for balanced connections and 1/4” TRS female jack that
will accept balanced and unbalanced connections. Use these connections to connect the output signal from a mixer, cross-over or EQ to your MS series
amplifiers. A balanced connection is recommended for cable runs longer that 20ft. When constructing your own XLR cables follow the pin configuration describe
below for proper connections. For cable runs shorter than 20ft. you may choose the 1/4” unbalanced input option. The 1/4” unbalanced input option may be
more convenient for most users due to the abundant supply of prefabricated cables available at your local audio dealer. You may use the two XLR “Input Thru”
jacks to jump a parallel connection to another amplifier or other device. For Example: Connect a XLR cable to the input of channel one. You may now connect a
XLR cable from the channel one “Input Thru” jack to the input jack of another amplifier’s channel one input. This will reduce the use of “Y” cables.
OUTPU TS -
Bindi ng Post/Ba nana Pl ug: C onnec t you r speak ers to the bin ding po st ou tputs o n the r ear of th e amplifie r. The s peake r
wire ma y be connect b y bare wi re (d irect ly co nnect ed, usuall y for per man ent con nec tions ), banana pl ug, or sp ade
conne ctor. Conne ction s are m ade to Ch annels 1 and 2 o utput ’s fo r ste reo mod e or ac ross th e red termin als of Ch ann els 1
and 2 for M ono Bridge M ode.
Impor tant Notic e: Altho ugh a s peake r wil l opera te with the po sitiv e and n egati ve le ads plu gged in to ei ther te rmi nal on th e
ampli fier bindi ng post , be su re to plu g the n egati ve lead into t he blac k ter minal a nd positiv e lead in to th e red ter min al.
Ensur ing proper p olari ty wi ll avoi d speakers b eing ou t of ph ase, th at ca n cause a l oss of bass re sponse.
Banan a Plugs: Whe n conne cti ng your s pea kers to t he amplifi er usin g ban ana jac ks; B e sure th at the red and b lack ca ps
on the bi nding post a re comp let ely scr ewe d in. Ins ert the bana na jack s int o the cap s of th e bindi ng post, be su re that t he
banan a jack is inse rted se cur ely to av oid t he risk o f it popping o ut.
Figure 6
Male XLR Pin Configuration
Figure 3
2 Hot (+data)
12
3
1 Ground / Return / 0v
3 Cold (-data)
Balanced TRS 1/4” Plug
Hot (+)
Cold (-)
Ground/Shield
Figure 4
Unbalanced TS 1/4” Plug
Hot (+)
Cold (-)
Figure 5
pag e 7
Introdu ction Fron t Panel Rear P anel Operati ng Mode s Pro tecti on Sp ecifi cations Set Up
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
Typical speaker output using spade connectors.
Insert bare wire into the binding post and tighten.
Figure 8
Bare Wire Connections:(Figure 7)
When connecting your speakers to the amplifier using bare wire; Unscrew the red and black caps on the binding
post, be sure not to completely remove or unscrew the red and black caps. Strip back the wire insulation ½”
(13mm). Insert the bare wire into the hole that was reveled by unscrewing the binding post cap. After inserting the
wire into the binding post hole, screw the binding post cap down on the wire. To reduce the risk of shock or
damage to your amplifier, be sure that the wire connected to one binding post does not come in contact with that
of another.
Spade Connector: (Figure 8)
When connecting your speakers to the amplifier using spade connector; Unscrew the red and black caps on the
binding post, be sure not to completely remove or unscrew the red and black caps. Insert the spade connector in
to the binding post and tighten the caps down on the spade connector. To reduce the risk of shock or damage to
your amplifier, be sure that the wire connected to one binding post does not come in contact with that of another.
When connecting your speakers to the amplifier using banana jacks; Be sure that the red and black caps on the
binding post are tighten down completely. Insert the banana jacks into the caps of the binding post, be sure that
the banana jack is inserted securely to avoid the risk of it popping out.
Mono Bridge Connections:
Mono bridge operation connections will follow the above descriptions however, when operating in mono bridge
operation the speaker connections will run between the two positive (red) leads. Use channel two positive output
terminal for the negative connection and the channel one positive output terminal for the positive connection.
Figure 7
Typical speaker output using bare wire.
Insert bare wire into the binding post and tighten.
pag e 8
4 Ohm Minimum Speaker Load
Uses Channel 1 Inputs Only
Figure 9
Introdu ction Fron t Panel Rear P anel Operati ng Mode s Pro tecti on Sp ecifi cations Set Up
UNiKA
1/5"
13mm
6
A
M
P
MS550 / MS750 / MS1050 / MS2050 / MS3050
Typical Speaker
Connect to Channel 2
Output
Typical Mixer
Typical Speaker
Connect to Channel 1
Output
Typical Stereo Set-Up
figure 10
pag e 9
UNiKA
Introdu ction Fron t Panel Rear P anel Operati ng Mode s Pro tecti on Sp ecifi cations Set Up
6
A
M
P
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 10
SPEAKERS
2 OHM MINIMUM
SPEAKERS
2 OHM MINIMUM
TYPICAL STEREO OUTPUT CONNECTIONS
figure 11
SPEAKERS
4 OHM MINIMUM
Use Channel 1 Inputs Only
TYPICAL MONO BRIDGE SET-UP
figure 12
UNiKA
Introdu ction Fron t Panel Rear P anel Operati ng Mode s Pro tecti on Sp ecifi cations Set Up
6
A
M
P
6
A
M
P
MS550 / MS750 / MS1050 / MS2050 / MS3050
Operating Modes
STEREO OPERATION : Page 9 / Figure 10 details an example of a typical stereo set-up. Connect your inputs into channels one and two of the amplifier.
Connect your speakers to the outputs on the rear of the amplifier. Be sure that your front gain controls are turned down to their lowest level (full counter-clockwise).
Turn your amp on. Turn your input source level up. Use your front gain controls to regulate the output volume. Be sure not to raise the volume to the clip level,
however an intermittent clip signal is acceptable.
MONO BRIDGE OPERATION : Page 10 / Figure 12 details a mono bridge set-up. Be sure your amplifier and all other audio equipment is powered down.
Flip the Stereo/Mono/Mono Bridge switch to the Mono Bridge position. Connect an input signal to channel one. Connect your speaker across the red output binding
post on the rear of your amplifier. Turn your equipment on (your amplifier should always be the last item you turn on). Apply an input source signal to your amplifier.
Turn channel two gain up. Use the channel one gain to regulate your amplifier output.
Protection
Safe Power Levels at Different Output Loads:
8-Ohm L oads : The amp lifie r can o perat e at pr actic ally any pow er leve l wit hout ri sk of o verhe ating. How ever, if i t is pu shed ha rd en ough to c ontinual ly
light t he “CLIP ” ind ica tor, the a mpl ifier c an reach it' s maxim um po wer out put .
4-Ohm L oads : If the “C LIP ” indica tor f lashe s occ asion ally, the amp lif ier is ap pro achin g its Maximu m long- ter m power c apa city. If it is li t about half t he
time, t he amplifi er chan nel w ill pro bab ly go int o thermal pr otect ion w ithin a f ew mi nutes .
2-Ohm L oads : Excep t for an oc cas ional f las h, keep t he “CLIP ” indica tor dar k to av oid ove rhe ating t he amplifi er chan nel . Clipp ing should b e kept to a
reaso nable mini mum. An am pli fier’s peak cu rrent draw a t full ou tpu t power i nto 2 o hms is se veral time s what th e “no rmal ” dr aw is , but its v arious
prote ction circ uits wi ll pr event t his c ondit ion lastin g more th an a mi nute or t wo.
Short Circuit P rotection - The MS ser ies a mplif ier s com es with buil t-i n Output Sho rt Ci rcu it Protect s. Th e Out put
Short ed Ci rcu it Prot ect ion p rotects th e out put d evice s of th e amp lifier fro m sho rt ci rcuit s and s tre ssful load s. If y our s peake r
lines s hor t, th e ampli fie r aut omatical ly de tec ts this p rob lem a nd discont inu es op erati on fo r tha t channel. I f one s ide of your
ampli fie r bec omes sh ort ed an d goes into pr ote ct mo de, the o the r sid e will conti nue t o ope rate no rma lly. D uri ng short cir cui t
prote cti on, t he "Cli p" LE D and “ Protect" L ED wi ll li ght sim ult ane ously indi cat ing a mplif ier f aul t. Channel o utp ut during th e
“Shor t Cir cui t Prote cti on" w ill be inter rup ted ( i.e. no s oun d out put). Shor t Cir cui t Prote cti on ca n usually be t rac ed ba ck to
the sig nal o utp ut line ( i.e . spe aker line) . Che ck th e line fr om th e out put termin al of t he am plifi er to t he sp eaker. If thi s lin e
good, c hec k the i ntern al sp eak er connect ion s and c ompon ent s. A shor t circuit wi ll us ually be tra ced t o a bad c able or a bad
speak er co mpo nent an d is ra rel y traced to th e amp lif ier its elf .
pag e 11
Introdu ction Fron t Panel Rear P anel Set Up Protect ion S pecif ication s Oper ating Modes
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 12
MODEL NO
Output Power
2 ohms, 1KHz 1%THD
4 ohms, 1KHz 1%THD
8 ohms, 1KHz 1%THD
(Bridge Mode, mono)
4 ohms, 1KHz 1%THD
8 ohms, 1KHz 1%THD
Total Harmonic Distortion
20Hz-20kHz, 1Wrms
output power, 8 ohms
Input Sensitivity
@ rated output power, 8 ohms
Dimensions &Weight
Height
Width
Depth
Weight
Frequency Response
+/- 1db, 1Wrms. 8 ohms
+/- 0.2db, @ rated output, 8
ohms
Hum & Noise
Below rated output, 8 ohms
Power Consumption
@ rated output power, 8 ohms
Cooling System
MS550
275 Wrms STEREO
220 Wrms STEREO
150 Wrms STEREO
550 Wrms
440 Wrms
3.5"(8.8cm)
19"(48.3cm)
15.9"(40.5cm)
10kg
2.2A @220V AC
MS750
350 Wrms STEREO
280 Wrms STEREO
180 Wrms STEREO
700 Wrms
560 Wrms
3.5"(8.8cm)
19"(48.3cm)
15.9"(40.5cm)
10.5kg
2.7A @220V AC
MS1050
540 Wrms STEREO
380 Wrms STEREO
240 Wrms STEREO
1080 Wrms
760 Wrms
3.5"(8.8cm)
19"(48.3cm)
15.9"(40.5cm)
13kg
3A @220V AC
MS2050
700 Wrms STEREO
470 Wrms STEREO
290 Wrms STEREO
1400 Wrms
940 Wrms
3.5"(8.8cm)
19"(48.3cm)
15.9"(40.5cm)
13.5kg
3.2A @220V AC
MS3050
870 Wrms STEREO
600 Wrms STEREO
370 Wrms STEREO
1740 Wrms
1200 Wrms
3.5"(8.8cm)
19"(48.3cm)
15.9"(40.5cm)
14.5kg
4.8A @220V AC
dual speed fan and heatsinks
100 dB, unweighted
10Hz - 40kHz
20Hz - 20kHz
0.775V / 1.0V / 1.4V selectable.
Less then 0.01%
Introdu ction Fron t Panel Rear P anel Set Up Ope rating Mo des P rotec tion Speci ficatio ns
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 13
Introdu ction Fron t Panel Rear P anel Set Up Ope rating Mo des P rotec tion Speci ficatio ns
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 14
Introdu ction Fron t Panel Rear P anel Set Up Ope rating Mo des P rotec tion Speci ficatio ns
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
pag e 15
Introdu ction Fron t Panel Rear P anel Set Up Ope rating Mo des P rotec tion Speci ficatio ns
UNiKA
MS550 / MS750 / MS1050 / MS2050 / MS3050
Profe ssion al Power Amp lif iers
UNiKA
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