Unika A6M4, A8M4, A10M4 User Manual

POWERED MIXER

P R O F E S S I O N A L A U D I O

6F, No.168, Xin-Hu 2nd Rd.
Nei-Hu District, Taipei City. 11494.
Taiwan, Republic of China.

[phone]

[phone]

[e-mail]

Unika Electronic Co., Ltd.

w w w . u n i k a . c o m . t w

A6M4/A8M4/A10M4

User Manual

Made in Taiwan

P R O F E S S I O N A L A U D I O

Page 1

A6M4/A8M4/A10M4

This symbol is intended to alert the user to the presence of hazardous
voltage that is not insulated from the box and may be of sufficient magnitude
to constitute a risk of electric shock.

This symbol is intended to alert the user to the presence of important
operating and maintenance instructions in the documentation that comes
with the product.

!

C A U T I O N

R I S K O F EL E C T R I C S H O CK

D O N O T O P E N

CAUT ION: TO REDUC E THE RIS K OF

ELEC TRIC SH OCK, DO N OT

REMO VE THE COVE R. NO USER

SERVIC EABLE PARTS INSID E.

REFE R SERVICI NG TO QUALI FIED

SERVIC E PERSO NNEL.

!

Index

01 Important Precautions

Introduction02

02 Features

03 Front Panel

05 Rear Panel

06 Specifications

IMPORTANT PRECAUTIONS

PRECAUTION: To reduce the risk of electric

shock, do not remove the cover, there are no user
serviceable parts inside, leave all maintenance to
qualified technicians.

WARNING: To prevent electric shock or fire
hazard, do not expose this appliance to rain or
moisture. Do not throw water or any other liquid
on or into your unit. Read all warnings in the
operating instructions before use.

Page 2

A6M4/A8M4/A10M4

INTRODUCTION: Congratulations and thank you for purchasing A6M4/A8M4/A10M4
powered mixer. These powered mixers are representation of UNiKA's continuing
commitment to produce the best and highest quality audio products at an affordable
price. These powered mixers are designed to offer excellent sound, high reliability
combining versatility and high power in all its models. Versatile for capacity from 6 to 10
channels, inputs for CD player, 7-band graphic equalizer ± 12 dB, maximum output
power of 420W rms (@2ohm) and auxiliary inputs and outputs. Please read and
understand this manual completely before attempting to operate the unit.

UNPACKING: As part of our quality control, each powered mixer has been thoroughly
tested and has been shipped in perfect operating condition. Carefully check the
shipping carton for damage that may have occurred during shipping. If the carton
appears to be damaged, carefully inspect your unit for any damage and be sure all
accessories necessary to operate the system have arrived intact. In the event damage
has been found or parts are missing, please contact your dealer for further instructions.

FEATURES

- XLR balanced inputs

- ¼ " (6.3mm) TRS balanced inputs

- Tone control per channel

- Master tone controls, Effects and Volume

- 7-Band graphic equalizer

- Assistants on CD or Cassette

- Volume control channel

- Recording output

- Output and return Effects

- Protection systems against short-circuit and overloads

- Cooling system with variable speed fan

- MP3 player/FM Tuner, LCD display with programmable memories

- Infrared remote control

- SD card slot

INTRODUCTION

Page 3

FRONT PANEL

1. LOW IMPEDANCE CHANNEL INPUT (LOW Z)

Connect a microphone or a s imi lar s our ce us ing a X LR pl ug.

2. HIGH IMPEDANCE CHANNEL INPUT (HIGH Z)

Connect an instrument o r a sim ila r sou rce t o the c ons ole u sing a ¼ " TRS phone plug of three termina ls.

3. CHANNEL GAI N CON TRO L (GAIN)

It allows to adjust the level of s ign al th at ea ch of t he ch ann el contributes to the master section helping
mix and balance the signa ls of e ach c han nel c orr ect ly. It is recommended that this control be l ess t han
60% of its travel (thus gainin g a uni t gai n) be for e inc reasing the gain of the master control (8) in order to
obtain the best quality a nd th e low est n ois e lev el in t he sounds reproduced by the horns.

4. CONTROL OF CH ANN EL' s HIG H FREQUENCIES (HIGH)

It allows to adjust the intens ity o f the a cut e sou nds o f eac h channel independently aff ect ing m ain ly th e
brightness of the same. In the c ent ral p osi tio n the r esp onse will be flat (not accentuated or attenuated).
Turning the control to the left attenuates the high frequenci es an d tur nin g to th e rig ht is a ccentuated.
The control of high frequ enc ies c ove rs a ra nge ± 1 2dB @ 1 0 KHz.

5. CONTROL OF CH ANN EL' s LOW F REQUENCIES (LOW)

It allows to adjust the intens ity o f the b ass s oun ds of e ach c hannel independently. In the cent ral
position the response w ill b e fla t (no t acc ent uat ed or attenuated) by turning the control to the left the
low frequencies are att enu ate d, tu rni ng it t o the r igh t are accentuated. The low frequen cy co ntr ol ha s a
range of ± 12dB @ 80Hz and main ly affects sounds like the guitar bass or bass drum.

6. CONTROL OF CH ANN EL EFFECTS (FX)

It allows to send the signa l of an y cha nne l ind epe nde ntly to an external effect or to the dig ita l ech o
module built into the uni t . In th e ext rem e lef t pos iti on th e signal that it provides will be null. Turning the
control to the right increas es th e sig nal .

7. MASTER CONTROL OF GAI N (GA IN)

It adjusts the level of the sign al th at it i nje cts t o the i nte rna l amplifier. It is recommended to first set the
individual gain co ntr ols o f eac h of th e mai n cha nne ls at least 60% of their travel, thus obtaining a unit
gain before increasin g the m ain g ain i n ord er to o bta in the best quality and the lowest sound level in the
sounds reproduced by th e hig h fre que ncy h orn s.

1 2 3 4

5

6 7 19

8

21

20

119 10

22

12
13

14
16
17

18

15

A6M4/A8M4/A10M4

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8. AUXILIARY INPUT (AUX. IN)

It allows you to input an extern al si gna l suc h as a CD p lay er, etc. with 225mV line output through the use
of a ¼ "monaural phone plug . The level of this signal will be determined by the effe ct ga in control (level).

9. CONTROL OF AUX-IN & EXTERNAL EFFECT RETURN LEVEL (FX LEVEL)

It acts on the auxiliary signa l inp ut IN a nd on t he in put s ign al of FX return. These signals can be
equalized and inje cte d dir ect ly in to th e mas ter s tage.

10. RETURN OF EFFECTS (FX RETURN)

External Eff ect s ign al input through the use of a ¼ "monaural phone plug, the input level w ill a lso b e
determined by the Effe ct level control of the master section.

11. SIGNAL OF INP UT CH ANN ELS THAT SENDING TO EXT ERN AL EFFECT UNIT (FX SEND)

It allows you to extract indep end ent s ign al fr om ea ch ch annel to be injected into an external eff ect s
processor using a ¼ "mona ura l pho ne pl ug. The magnitude of the signal is determine d by th e effect
control of each channel s ele cte d to be s ent t o the p roc ess or.

12. POWE ON LIGHT INDICATOR (ON)

It will illuminate when t he sw itc h on th e bac k of th e con sole is enabled in position switched on.

13. CLIP IN DIC ATOR (CLIP)

Illuminates when the am pli fic ati on st age o f the c onsole is causing a level of audio distortion. To avo id
such distortion, redu ce th e out put l eve l wit h the m ast er gain control of the master section, or with the
level controls of each in put c han nel .

14. RECORDING OUTPUT (TAPE O UT)

It delivers the audio sig nal c omi ng fr om th e mix o f all i nput channels to an external audio recorder, this
signal is sending from th e pre -eq ual ize r of th e mas ter section.

15. 7-BAND GRAPHIC EQUA LIZ ER (E Q)

Master output Graphic Equa liz er, it a llo ws be tte r sound quality by accentuating or attenuating
frequency signals, th e fre que ncy b and s of 60 Hz, 1 50Hz, 400Hz, 1KHz, 2.5KHz, 6 KHz and 15KHz in an
adjustable range of +/- 1 2dB .

DIGITAL ECHO EFFECT

16. DELAY TIME CONTROL (TI ME)

It controls the time elapsed b etw een t he re pet iti ons o f the signal obtained from any of the input
channels. Turning to the m ini mum p osi tio n giv es th e reverb effect. The o per ati ng range is between 20
and 160 milliseconds.

17. DEPTH CONTROL (DEP TH)

Adjusts the number of times th e ori gin al so und f rom a ny of t he main channels is repeated. Turning to the
maximum position give s an ec ho effect.The Depth controls effec t the a mou nt of d ela yed signals that are
mixed in with the origina l sig nal , hig her d ept h set tings make the delayed copies louder than the original
signal.

18. ECHO DIGITAL MODULE OUTPUT LEVEL (LE VEL )

Controls the sound effects signal level that is provided by this module to the master output s ect ion o f the
console. In the minimum p osi tio n the o utp ut of t his m odu le is null canceling the effect.

19. USB GAIN CONTROL (US B LEVEL) Controls the volume level of the included MP3 player.

20. MP3 PLAYER (USB INPUT)

Input connector for USB memo ry de vic es fo r the i nte rna l MP3 player. To control the player use the
included remote contr ol.

21. MP3 PLAYER CONTROLS : Play / pause; : Next track; : Previous track

22. IR Infrared receiver for r emo te co ntr ol.

A6M4/A8M4/A10M4

Page 5

REAR PANEL

23. MAIN SI GNA L DE VIATIO N (LOOP SEND)

It allows t o obt ain a sample i den tical to the sign al coming from th e mas ter stage an d tha t is directe d tow ards
the inter nal a mplifier. I t can b e sent first to sig nal equalizat ion p rocesses t o ret urn loopba ck fo r additional
power amp lif ier power th rou gh the use of a ¼ "mona ural type phone p lug .

24. MAIN SI GNA L RE TUR N (LOOP RETURN)

It allows t o int errupt the p ass age of the main sig nal just betwee n the m aster stag e and t he power amp lif ier to
replace i t wit h that obtai ned f rom any externa l processing su ch as a n equaliza tio n. It can also b e use d to
inject a co mpl etely different s ign al from the ma ste r stage (such as th at of a monitors sy stem) to the powe r
amplifi er in cluded in th e mix er while the main s ign al is drawn fr om th e loop outpu t sen d. The ma ster-amp lif ier
circuit i s swi tched off automat ica lly when a ¼ "mo nau ral type phone pl ug is inserted.

25. SPEAK ER OU TPUTS (OUT PUT )

For conne cti on, a ¼ "monau ral p hone plug is used . It is advisable t o use t he correct c ali ber on the con nec ting
cable to yo ur sp eakers (do n ot us e instrument ca ble). The internal con nection of the ou tpu t connecto rs is i n
paralle l and t he combined min imum impedanc e in th e two output c onn ectors mus t not b e less than 2Ω .

26. OUTPU T FUS E (OUTPUT FU SE)

It has an ele ctr onic overl oad p rotection sys tem in the output s tag e of the power a mpl ifier. The system wi ll
disconn ect t he speaker s whe never there is an i mproper condi tio n caused by a sh ort c ircuit or an i mpe dance
of less tha n 2Ω in t he power out put . In addition, it s console uses a fu se in series betw een t he power out put
and its spe ake r system. If n ece ssary repl ace w ith an equal one.

27. AC POW ER SWITCH (P OWE R)

Allows yo u to co ntrol the on / o ff stat us of t he complet e uni t which will be sho wn by the ON indica tor l ocated
on the fron t of th e console. W hen t he console is tur ned on, the trans ien t protecti on sy stem is auto mat ically
activat ed at t he output, m ome ntarily disco nnecting the sp eak ers to avoid a ny da mage and the n res etting
seconds . Also t he system wi ll be a ctivated just a fter the switch i s brought to the off posit ion thus avoidi ng th e
noises pr odu ced by the dis cha rge of the source o n the horns.

28. INPUT F USE ( A.C. FUSE)

For great er pr otection i n the p ower supply the c onsole uses an Ame ric an fuse of slo w fus ion. If nece ssa ry
replace i t wit h another of t he sa me type.

29. AC POW ER INPUT

IEC AC Power i nle t connecto r, plu g this cable in to a st andard 220V wal l out let. Be sure t hat s upplied vo lta ge
matches t hat o f the requir ed vo ltage of this uni t. Never plug thi s uni t in to a wall out let t hat does not m atc h the
require d vol tage, seri ous d amage may occur t o the unit.

A6M4/A8M4/A10M4

FUSE

FUSE

23 24 25 26 27

29

28

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A6M4/A8M4/A10M4

SPECIFICATIONS

THD @8Ω 20Hz 20KHz

Distortion by inter modulation

Balanced phase response

Ignition

Power Requirements

Consumption in Vacuum

Output Impedance

Feeding Voltage

<0.1%

<0.1% of 10mW to nominal power @8Ω

+/-27 degrees of 20Hz 20KHz with band center

Protected against transients in the feed line

5A AC 120V full load

60W

<10KΩ in series with less than 2μH

120V AC 60Hz 600W

Model

Dimensions (H×W×D) mm

Weight

A6M4

170x476x179

9kg

A8M4

215x476x179

9.5kg

A10M4

245x476x245

10.5kg

Low

High

Line

Low

High

Line

High

Low

Graphic Equalizer

8Ω

4Ω

2Ω

Line Impedance

Input Sensitivity

Channel Control

Output Power

600Ω balanced

10KΩ balanced

10KΩ balanced

50mV rms

50mV rms

750mV rms

30dB rank (+/- 15dB) @1KHz

30dB rank (+/- 15dB) @ 80Hz

+/-12dB 60Hz 150Hz 400Hz 1KHz 2.5KHz 6.5KHz 15KHz

100W rms

220W rms

420W rms

P R O F E S S I O N A L A U D I O