Unika DCA-900, DCA-2000, DCA-1100, DCA-1300 User Instructions
User Instructions
This booklet contains important information concerning the proper and safe operation of your new amplifier..
DCA-Series
DCA-900 / DCA-1100 / DCA-1300 / DCA-2000
Made in Taiwan
Profe ssion al Power Amp lif iers
Index
02 Introduction
03 Front Panel
05 Rear Panel
07 Set Up
10 Operating Modes
14 Protection
15 Features
16 Specifications
UNiKA
CHANNEL 1 CHANNEL 2
PROTECT
CLIP
SIGNAL
POWER
0 010 10
Professi onal St ereo Am plifie r
0 010 10
LIMITER LIMITER
ON ON
UNiKA
POWER
BRIDGE
CLIP
-10
-20
SIG
-10
-20
SIG
O
LIMITER LIMITER
ON ON
STEREO
MONO
OVER HEAT
-5 -5
PROTECT
DCA 2000
PROFESSI ONAL PO WER AMP LIFIE R
0 0
10 10
PROTECTCLIP
CHANNEL 1 CHANNEL 2
UNiKA
CHANNEL 1 CHANNEL 2
PROTECT
CLIP
SIGNAL
POWER
0 010 10
Professi onal St ereo Am plifie r
0 0
10 10
UNiKA
POWER
CHANNEL 1 CHANNEL 2
PROTECT
CLIP
SIGNAL
POWER
0 010 10
Professi onal St ereo Am plifie r
0 010 10
UNiKA
POWER
IMPORTANT SAFETY INSTRUCTIONS DCA-900/DCA-1100/DCA-1300/DCA-2000
pag e 1
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 fire 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 suffisante 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 befinden 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 AUTHORIZED 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.
!
!
pag e 2
IMPORTANT PRECAUTIONS
To reduc e the r isk o f electric al sh ock or fire, d o not e xpo se this unit r ain o r
moist ure .
Do not s pil l wat er or other li qui ds into or on to y our u nit .
Do not a tte mpt t o operate th is un it if the powe r cor d has b een frayed o r
broke n.
Do not a tte mpt t o remove or br eak o ff th e gro und prong fr om th e electric al
cord. This p ron g is us ed to reduce t he ri sk of e lectr ica l sho ck and f re in
case of a n int ern al shor t.
Disc onn ect m ain power be for e making any t ype o f con necti on.
Do not r emo ve th e cover unde r any c ondition s. There a re no u ser
servi cea ble p arts in sid e.
Neve r plu g thi s unit in to a dim mer p ack.
Alwa ys be s ure t o mount this u nit i n an area that w ill a llo w prope r
venti lat ion . Allow ab out 6 ” (15 cm) betwee n thi s dev ice and a w all .
Do not a tte mpt t o operate th is un it, if it beco mes d ama ged.
This u nit i s int ended for in doo r use only, use of this pro duc t outdoors v oid s
all war ran tie s.
Duri ng lo ng pe riods of non -us e, disconn ect t he un it’s main power.
Alwa ys mo unt t his unit in a sa fe an d stable man ner.
Powe r cor ds sh ould be rout ed so t hey are not li kel y to be w alked o n,
pinch ed by i tem s place d upo n or ag ainst them .
Clea nin g -Th e outside of t he un it should be w ipe d own w ith a sof t clo th an d
mild cl ean er wh en need ed.
Heat - The a mpl ifier shou ld be s ituated aw ay fr om he at sources s uch a s
radia tor s, he at regi ste rs, s toves, or ot her a ppl iance s (in clu ding ampli fie rs)
that pr odu ce he at.
The fi xtu re sh ould be serv ice d by qualifi ed se rvi ce pers onn el wh en:
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
marke d cha nge i n perfo rma nce .
Congr atu lat ions an d tha nk yo u for purcha sin g DCA -900/ DCA -110 0/D CA-
1300/ DCA -20 00 ampl ifi er. Th ese a mpl ifier s are r epr esentati on of U NiKA’s
conti nui ng co mmitm ent t o pro duce the bes t and h igh est qua lit y aud io
produ cts a t an af for dable pric e. Th ese a mpl ifiers are d esi gne d to prov ide a
big imp act i n sou nd repr odu cti on. Please r ead a nd un derst and t his m anual
compl ete ly be fore at tem pti ng to operat e you r new a mplif ier. This b ook let
conta ins i mpo rtant i nfo rma tion conce rni ng th e prope r and s afe o peration o f
your ne w amp lif ier.
UNPACKIN G: E ver y DCA-900/ DCA -110 0/D CA-1300/ DCA -20 00
ampli fie r has b een tho rou ghl y tested and h as be en sh ipped i n per fec t
opera tin g con ditio n. Ca ref ully check t he sh ipp ing car ton f or da mage that
may hav e occ urr ed duri ng sh ipp ing. If the ca rto n app ears to b e dam age d,
caref ull y ins pect yo ur un it fo r any damage a nd be s ure a ll acce sso rie s
neces sar y to op erate t he sy ste m have arriv ed in tac t. In the e ven t dam age
has bee n fou nd or p arts ar e mis sin g, please co nta ct yo ur deal er fo r fur ther
instr uct ion s.
INSTALLATION: Th ese a mplifier s are d esi gned to m oun t int o a
stand ard 1 9”r ack. The front pa nel p rov ides fo ur ho les u sed to screw t he un it
into a ra ck. T he un it al so provide s a way t o rea r mount t he un it in to a rack 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 DCA-900/DCA-1100/DCA-1300/DCA-2000
Introduction Front Panel Rear Panel Set Up Operating Modes Protection Features Specifications
DCA-900 & DCA-1300 FRONT PANEL
Figure 2
1. Rack ing Mounti ng Ears - Tw o fro nt pane l mou nting h oles are pro vided
on each m ounting ea r.
2. Fan In let Grills a nd Filt er - DC A Series a mpl ifier s are cooled b y two
rear mo unted fans . Cool ai r fro m front g ril ls is fil tered and fl ows ove r the
heats inks and exh austs t o bac k side. M ake s ure the se outlets r emain
clear t o allow unre stric ted a ir flow.
3. AC P ower Switc h - DCA Serie s ampli fie rs have a f ron t-pan el AC mains
power s witch.
4. Limi ter Switch ( DCA-1 300 o nly) - Th is is u sed to ac tivate the
chann el's built -in lim ite r. The l imite r reduces th e avera ge ou tput le vel
when th e signal beg ins to di sto rt, thi s pro cess is d esigned to r educe
disto rtion and pr otect t he sp eaker s. Se e limit er page 14.
5. Sign al Indicat or - Illu min ates to i ndi cate th at a signal (a bove a
minim um thresho ld) is pr ese nt at the a mpl ifier i nput, and th at the si gna l
is bein g amplifie d.
pag e 3
UNiKA DCA-900/DCA-1100/DCA-1300/DCA-2000
6. Clip I ndicator - T his red L ED wi ll begi n to fl ash whe n the channe l
begin s to overloa d (clip ), at t his poi nt th e chann el will begi n to dist ort .
Under h eavy clipp ing act ivi ty, lo wer the c hannel's g ain con tro l to redu ce
the ris k of damage to y our spe ake rs and am pli fier. This LE D may glo w
when th e unit has bee n turne d off , thi s is norm al.
7. Prot ect Indica tor - The r ed Pr otect L ED wi ll begi n to glow when t he
chann el goes into p rotec t mod e. When t he ch annel g oes into pro tect
mode al l output for t hat cha nne l will tu rn of f. Th is is to prote ct any
speak ers connec ted to th e cha nnel.
8. Gain C ontrol - Thi s rotar y kno b is used t o con trol th e output sig nal lev el
of the ch annel. Turn ing the k nob i n a clock wise direc tion wi ll in creas e
outpu t signal lev el.
9. Powe r Indicato r - These y ell ow LEDs w ill g low whe n mains powe r is
appli ed to the unit . The se ligh ts ma y conti nue to glow br iefly a fte r mains
power h as been turn ed off, this i s nor mal.
8
6
9
457
CHAN NEL 1 CHAN NEL 2
PROT ECT
CLIP
SIGN AL
POWE R
0 010 10
Pro fessi onal St ereo Am plifi er
0 0
10 10
LIMITER LIMITER
ON ON
UNiKA
POWER
3
2
1
CHAN NEL 1 CHAN NEL 2
PROT ECT
CLIP
SIGN AL
POWE R
0 010 10
Pro fessi onal St ereo Am plifi er
0 0
10 10
UNiKA
POWER
8
695
7
3
2
1
Figure 1
Introduction Rear Panel Set Up Operating Modes Protection Features SpecificationsFront Panel
DCA-2000 FRONT PANEL
UNiKA DCA-900/DCA-1100/DCA-1300/DCA-2000
BRIDGE
CLIP
-10
-20
SIG
-10
-20
SIG
O
LIMITER LIMITER
ON ON
STEREO
MONO
OVER HEAT
-5 -5
PROTECT
DCA 2000
PRO FESSI ONAL PO WER AMP LIFIE R
0 0
10 10
PROTECT CLIP
CHAN NEL 1 CHAN NEL 2
UNiKA
Figure 3
8 9310
7
4 65
pag e 4
1. Rack ing Mounti ng Ears - Tw o fro nt pane l mou nting h oles are pro vided o n
each mo unting ear.
2. Fan In let Grills a nd Filt er - DC A Series a mpl ifier s are cooled b y two rea r
mount ed fans. Coo l air fro m fro nt gril ls is f ilter ed and flows o ver the
heats inks and exh austs t o bac k side. M ake s ure the se outlets r emain c lea r
to allo w unrestri cted ai r flo w.
3. Sign al Indicat or - Thes e gre en and ye llo w LEDs wi ll glow acco rding t o the
avera ge signal ou tput.
4. Clip I ndicator - T his red L ED wi ll begi n to fl ash whe n the channe l begin s to
overl oad (clip) , at this p oin t the cha nne l will be gin to disto rt. Und er he avy
clipp ing activi ty, lo wer the c han nel's g ain contro l to redu ce th e risk of
damag e to your spea kers an d amp lifie r. Thi s LED may glow w hen the u nit
has bee n turned off , thi s is norm al.
5. Limi ter Switch - T his is us ed to a ctiva te th e chann el's built -in lim ite r. The
limit er reduces t he aver age o utput l eve l when th e signal beg ins to di sto rt,
this pr ocess is des igned t o red uce dis tor tion an d protect th e speak ers . See
limit er page 14.
6. Prot ect Indica tor - The r ed Pr otect L ED wi ll begi n to glow when t he chan nel
goes in to protect m ode. Wh en th e chann el go es into p rotect mod e all out put
for tha t channel wi ll turn o ff. This i s to pr otect a ny speaker s conne cte d to the
chann el.
7. Over heat Indic ator - Th is in dicat or wi ll begi n to flow when t he chan nel g oes
into th ermal prot ectio n mod e. When t he un it goes i nto therma l prote cti on,
the cha nnel outpu t will tu rn of f. Se e The rmal Pr otection p age 14.
8. Gain C ontrol - Thi s rotar y kno b is used t o con trol th e output sig nal lev el of
the cha nnel. Turni ng the kn ob in a c lockw ise d irect ion wil l inc rease o utp ut
signa l level.
9. Mode S election S witch - T his r ecess ed, t hree- position s witch c onf igure s
the amp lifier for S tereo , Mon o or Brid ged M ode ope ration. Amp lifie rs ar e
facto ry-confi gured f or St ereo Mo de. S ee sect ion on Mode Se lecti on fo r
more in formatio n.
10. AC Power Swit ch - DCA Ser ies a mplif ier s have a fr ont-pane l mains AC
power s witch.
21
Introduction Rear Panel Set Up Operating Modes Protection Features SpecificationsFront Panel
DCA-1300 & DCA-2000 REAR PANEL
11. Fan Ou tlet Ports - C oolin g air e nters t he am plifi er through t he fron t
grill s and exhaus ts thro ugh t he fans . Be su re not to b lock these p orts
when in stalling t he ampl ifi er or oth er as socia ted equipm ent. Air m ust
flow un impeded th rough t hes e ports .
12. Channel 2 Subwoofer Mode On/Off Switch (DCA-1300 & DCA-2000 only) -
Turns the subwoofer mode for channel two on and off.
13. Cha nnel 2 Frequ ency Adj . (DCA- 130 0 & DCA-2 000 only) - Th is pot
adjus t the freque ncy lev el se nt to you r spe aker on c hannel two w hen
using y our amplif ier in su bwo ofer mo de.
14. Channel 2 Balanced 1/4" TRS & XLR Input Connectors - These
connectors accept input signals on balanced TRS and XLR input plugs. See
the figures 6-8 for information on polarity. Connectors for each channel are in
parallel; the unused connectors may be used for "loop through" connection
to other amplifiers.
XLR pin setting: Pin-3/signal Negative, Pin-2/signal Positive, Pin-1/Ground.
15. Low C ut Filter Mo de Swit che s (DCA- 1100 & D CA-13 00 only) -
These D IP sw itche s are u sed to ac tiv ate and a djust the bu ilt-i n Low
Cut Fil ter, see ”Low C ut Filt er” o n Page 15 .
16. Channel 1 Balanced 1/4" TRS & XLR Input Connectors - These
connectors accept input signals on balanced TRS and XLR input plugs. See
the figures 6-8 for information on polarity. Connectors for each channel are in
parallel; the unused connectors may be used for "loop through" connection
to other amplifiers.
XLR pin setting: Pin-3/signal Negative, Pin-2/signal Positive, Pin-1/Ground.
17. Cha nnel 1 Frequ ency Adj . (DCA- 130 0 & DCA-2 000 only) - Th is pot
adjus t the freque ncy lev el se nt to you r spe aker on c hannel one w hen
using y our amplif ier in su bwo ofer mo de.
18. Channel 1 Subwoofer Mode On/Off Switch (DCA-1300 & DCA-2000 only) -
Turns the subwoofer mode for channel one on and off.
19. Mod e Selectio n Switc h – For t he DCA- 900 , DCA-1100 an d DCA-1300
all des igned with a r ecess ed, t wo-po sit ion swi tch config ures th e
ampli fier for Ste reo or Br idg ed Mode o per ation ; for the DCA- 2000 is
desig ned with a rec essed , thr ee-po sit ion swi tch config ures th e
ampli fier for Ste reo, Pa ral lel or Br idg ed Mode o peration . Amplif ier s are
facto ry-confi gured f or St ereo Mo de. S ee sect ion on Mode Se lecti on fo r
more in formatio n.
pag e 5
Figure 4: DCA-1300 REAR PANEL
UNiKA DCA-900/DCA-1100/DCA-1300/DCA-2000
CAUTION
MINIMUM LOAD IMPEDANCE
2 OHM PER CHANNEL
4 OHM BRIDGE
AC IN
-120V 60Hz
FREQUENCY
CH-2
CH-1
SUB
WOOF
DIPON
1 2 3 4
20Hz 200Hz
SUB
WOOF
FREQUENCY
200Hz20Hz
NORMALNORMAL
CH-1
CH-2
11 14
171619
21
20
11
1513
22 25 26 27 28
12 18
Introduction Front Panel Set Up Operating Modes Protection Features SpecificationsRear Panel
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