Kobble Digital Electronic AK2-700, AK2-1000, AK2-500, AK3-1200, AK3-1500 Owner's Manual

Kobble Digital Electronic Co., Ltd

Address: A2-4 Xinan Area, Sanshui Center Technology
Industrial Park , Fosha n, Guangd ong Provinc e, China

Tel: [phone] 83603300 83 603311

Fax : [phone]

Website: www.appaudio.cn

AK Series

OWNER'S MANUAL

AK2-500 AK2-700 AK2-1000 AK2-1200 AK2-1500

AK4-300 AK4-700 AK4-1300

AK3-1200 AK3-1500

Note

Content

1. .................... ....... ....... ....... ....... .................Introdu ct io n

2. .................... ....... ....... ....... ....... ...........Safety Oper at io n

3.Main Op er at io n & Functions....................... ....... ....... ....

5.Par ameter...................... ....... ....... ....... .......................

AK se ries pr ofess ion al audi o power a mpl ifier

4. .................... ....... ....... ....... ................Connectio n Mo de

.................... ....... ....... ....... ....... ..........Produ ct C he cking

.................... ....... ....... ....... ....... ......................Fea tures

.................... ....... ....... ....... ....... .... Functions & F ea tu res

.................... ....... ....... ....... ....... .....................Caution s

.................... ....... ....... ....... ....... ...................Operation

.................... ....... ....... ....... ....... ..................Fro nt Pa ne l

. ....... ....................... ....... ....... ....... ....... ........Rea r Panel

.................... ....... ....... ....... ....... .....................Welco me

Speakon output connection

.................... ....... ....... ....... ...

.................... ....... ....... ....... ....... ................Cert if ication

6. .................... ....... ..... .. ....... .......Product Warranty C ar d

War ranty Card In troductio n........................ ....... ....... .....

War ranty Card................. ....... ....... ....... ........................

Specifi ca ti on .... ....... ....... .............................. ....... ....... ..

1

1

1

1

2

3

3

3

4

4

5

6

8

9

2

9

12

12

SERVIC E IN FORMATION CARD

Nam e: P hone No .:

Dat e :

Con tact ad dress :

Ser ial num ber:

Custo mer inf ormat io n

Maint enanc e recor ds

Dat e

Fau lt

Pro cessi ng

con ditio n

Ins pecti on

dat e

Mai nte

-na nce

ord er No.

Mai ntain er

Mai nte

-na nce
pla ce

AK se ries pr ofess ion al audi o power a mpl ifier

The v ari ous ser ies pow er am plifi ers of ou r com pany ar e goo d pro duc ts, e ach amp lifie r's
del iver y all w ill be th rough t he st rin gent qu ality c hecks . Our com pany as sur es yo u tha t the
pro duc ts are in t he go od perf orman ce and de vices a re comp lete, a nd pr ovi de you fr ee
war ranty s ervi ce ac cordi ng to t he th is regu lat ion.

WAR RANTY CARD

Mea nwhil e, when o ur comp any p rovid es yo u war ranty s ervi ce, y ou must p res ent t he
war ranty c ard and t he in voice a s the p roof co ndi tio n. An d we reco mme nd that y ou
con sult wi th our se rvic e dep ar tme nt be fore se ndi ng ba ck th e produ cts t o ens ure the
smo oth ser vice . Cus tomer S er vic e Hotli ne: 008 6 -0757 -8360 3299

Wit hin thr ee- year wa rrant y perio d since t he da te you pu rch ase , if the pr odu ct dama ges
or ha s failu re (exc ept f or no t withi n the war ranty r ange an d the ind ividu al reas ons
men tione d below ), and be c onfir med by ou r techn ica l depar tment t hat the e rrors a re
not c aused b y non-o perat ing, ou r compa ny wi ll prov ide f ree m ain tenan ce and
rep lac ement p ar ts.

In th e follo wing ca ses, th e warra nty car d wil l autom ati cally e xpire :

1. Th e produ ct ha s been bu rned be cause o f the o ver loa d or th e feedb ack a nd othe r
rea son s due to th e mis handl ing;

2. Th e produ ct da mage du e to ship pin g failu res;

3. Du e to the po or wo rk envi ronme nt (s uch as da mp envi ronme nt) w hic h makes t he
pro duc ts can no t meet th e requi rem ent s that ca use d amage ;

4. Du e to the fo rce maj eur e cau ses d amage , such as n atura l disas ters;

5. Th e produ ct ha s been re pai red o r mod ifi ed by tec hnici an who is n ot ou r
com pany' s sta ff ;

6. Th e produ ct ha s not bee n insta lled pr ope rly acc ord ing t o the ope rat ion gui dance
whi ch caus es dama ge.

In th e follo wing ca ses, ou r compa ny wi ll not gi ve any ma int ena nce and h elp:

1. It i s not the p roduc t whi ch our co mpany i s as a ag ent .

2. Fa ke (sm uggle d) good s;

3. Th e produ ct wh ich has n o body co de, or th e cod e has bee n alter ed, d est royed ,

con verte d and not i n our com pany' s sal es reco rds .

The w arran ty and se rvic e whi ch is pro vid ed by our c omp any i s only li mited t o con duct in
our s ervi ce ce nter an d the p roduc t is se nt back t o repa ir by the c ustom er. For th e
req uir eme nts of go ing o ut for wa rra nty or ma inten ance, a ll th e trip ex pense s are pai d by
you .

Our c ompan y is no t respo nsi ble for a ny loss es whic h are cau sed b y the d amage o f the
pro duc t direc tly o r indir ect ly.

The p roduc t whi ch exce eds t he warr anty pe riod, o ur comp any w ill cha rge a rea son abl e
ser vice f ee.

Our c ompan y res er ves t he ri ght to al ter the t erm s wit hout pr ior not ice .

AK se ries pr ofess ion al audi o power a mpl ifier

12

1.Welcom e

2. Product Checking

Ope n the box t o che ck your n ew am plifi er. If you f ind t her e is da mag e, plea se advi se the

log istic c ompan y tim ely, and y ou have t he righ t to cl aim for l ogist ic comp any f or th e

los scaus ed duri ng tran spor t as yo u are t he co nsign ee.

3. ：Feat ures

<1> A dopt th e E.I.A i ntern ation al stan dard (2 U)3.5 '' (88m m) pr ofess ion al am plifi er chas sis .

<2> : Pow er su ppl y desig n

Eac h unit co ntain s a set of lo gic al powe r sup ply. Adj ust t he powe r outpu t level v olt age

thr oug h the log ic powe r suppl y real- tim e dyn amic co ntrol c irc uit . And can r eal -time

dyn amica lly ada pt to the s ign al and lo ad re qui remen ts, w hich ca n achie ve the op tim al

pow er matc hin g under t he wide l oad con dit ion s, and en sure th e amp lifie r will no t overh eat .

<3> P rofes sio nal Spe akon so cke t sui t for the e ngine ering a nd tour ing per form anc e.

<4> To w ith sta nd the lo ng-te rm bu mps alo ng the wa y, all the s pare pa rts are t hro ugh

the s pecia l reinf orcem ent .

<5> A dopt th e preci sion CN C lathe s to stam p the i ntegr ated st eel p late to m ake the

str uctur e extre mely st rong an d be ab le to wit hstan d the max imu m trans ient

pre ssure w ith out def ormat ion

<6> P erf ect pro tecti on func tion

Amp lifie r provi des m any dif feren t typ es of pro tec tio n fun ction s, incl uding D C prote cti on,

int ernal f ault pr ote cti on, inp ut over loa d pro tec tion, R F inter feren ce fi lter, ou tpu t sho rt

cir cui t prote cti on, un- match l oad a nd hi gh- frequ enc y overl oad pro tec tio n, ov erhea t

pro tec tion of h eat- sin k and tra nsfor mer and p ower su ppl y input o ver-cu rre nt pr ote cti on

(ov er-cur ren t pro tec tion sw itc h)

<7> X LR bala nce d input a nd outp ut

Wel com e to us e AK seri es prof ess ion al au dio pow er ampl ifier w ith APP b rand

whi ch own by KO BBLE. F or your s afety, p lease r ead the c autio n bef ore ins tal ling an d

ope ratin g the pow er ampl ifier.

AK se ries pr ofe ssi onal po wer amp lif ier. Has a s tab le ci rcuit a nd re aso nable c oolin g

lay out and t he care ful ly sele cted co mpo nents , conci se manu factu ring pr oce ss, lon g
tim e burni ng test , to ensu re th at th e ampli fier ha s excel len t perf orm anc e and r eli abili ty

Introduciton

01

AK se ries pr ofess ion al audi o power a mpl ifier

<8> C oolin g syste ms

The c oolin g syste m is usin g the win d tun nel typ e, seal g as flow p ass c an stre ngt hen the

coo ling ef fect an d avoid t he fa ult whi ch caus e by the PC BA poll ution w hich ca used by t he

sta ge dust y a nd smok e. En sure wh en th e uni t is unde r the nor mal wor k condi tions , the

tem perat ure can r eac h bal anc e withi n a cer tain r ang e.

<9> :Per fect in terf ace

Sig nal inp ut:XL R input /sign al para lle l outpu t
Hor n outpu t: Spea kon prof essio nal out put soc ket.

Fre quenc y Respon se(at 1 Wa tt)

Total H armon ic Dist ortio n(THD )

Int ermod ulatio n Disto rtio n60Hz
and 7 KHz at 4: 1from fu ll rate d
out put to -30 dB

Sle w Rate

Volt age Gai n

Dam ping Fac tor(8 ohms) 10Hz­ 400 Hz

Sig nal-t o-Noi se Rati o (belo w

rat ed powe r,20 Hz to 20k Hz.

A-w eight ed)

Cro sstal k(bel ow rated p ower)

At 1k Hz
At 20 kHz

Inp ut Sens itivi ty for fu ll

rat ed powe r at 8Ω

Inp ut impe dance (nomi nal)
Bal anced
Unb alanc ed

1kH z(HIA )with 0.5%T HD

4Ω ste reo(pe r chann el)

8Ω bri dge mon o

Rated p owe r /m ode l

Per fo rmanc e

Const ru ction

Vent ilati on

Pro tectio n

Coo ling

Powe r cord sp ecifi catio n

Cha ssis si ze( uni t mm)

Net w eight

8Ω ste reo(pe r chann el)

20H z-20K Hz,+0 -1dB

<0. 5%,20 Hz-20 KHz

=/< 0.35%

>20 V/us

>20 0

>10 0dB

-75 dB

-58 dB

20K o hms
10k o hms

AK4 -700

AK4 -1300

35. 3dB

8.0 kg

482 x227x 88

2x2 300W 2x4 000W

37. 8dB

0.7 75V or 1. 4V

AK se ries pr ofess ion al audi o power a mpl ifier

4x1 030W 4x1 670W

4x6 70W 4x1 220W

AK4 -300

2x1 000W

4x5 50W

4x3 50W

11

33d B

Prot ectio n again st shor t circu its, no -load , on/of f mutin g, RF int erfer ence.

Flo w-thr ough ve ntila tion fro m front t o back

Int ernal he at sink s with fo rced ai r. Fan cool ed, spe ed regu lated ,
the rmal pro tecti on

Plu g Wire :：1 0A，250V 3x1 .0mm

02

4. ：Func tions & Fea tures

5. ：Certifi cation

In or der t o prepa re to pr ovide t he need ed mate ria ls to the p roduc tio n, we use a c omp lete
ERP s ystem w hich ca n com prehe nsi vely ba lan ce and op timiz e manag ement t he reso urc es.
In ad ditio n, we als o bear th e follo wing ce rt ifi catio n.

<1> EU “CE” c ompul sory c er tif ica tion ma rk
<2> UL prod uct s afety t est a nd cer tif ica tion
<3> Ameri can pro duc t safet y stand ard
<4> PSE Jap ane se co mpuls ory sa fet y mark

<5> K ET Kore an co mpu lsor y cer tifi cat ion
<6> RoHS Ce rti ficat e
<7> CCC Nati onal Co mpuls ory Ce rt ifi cat ion
<8> ISO90 01 qual ity sys tem cer tifi cat ion

AK se ries pr ofess ion al audi o power a mpl ifier

<1> Effic ient he at-sin k, var iab le sp eed c oolin g fan, en sures t he am plifi er work ing at th e

low t emper ature .

<2> Exqui site sh ape a nd stan dard in sta llati on hole .
<3> Perfe ct pr ote cti on, inc ludin g limit , the on / of f sho ck prot ect ion , DC prot ect ion ,

out put sho rt circ uit pro tecti on, o verhe at prot ect ion .

<4> In-bu ilt lim iter, it i s a ver y effe cti ve pr ote cti on ag ainst e lectr ical da mage to t he sp eaker.

<5> Excel lent au dio sig nal per forma nce, wh ich has e xcell ent sig nal con versi on feat ure, it

has v ery li ttl e harmo nic d istor tion ( THD ), in termo dul ation d istor tion (SMP TE- IM) ,
tra nsien t inter mod ulati on dist orti on, p ure a nd na tural i nters titia l ded uctio n.

<6> STERE O,BRID GE, PARA LLE L worki ng mode .
<7> Each ch annel h as its Si gnal an d Clip in dicat or.
<8> When th e prote cti on ci rcuit s wor k, Faul t indic ator li ghts, a nd so und out put aut o

mat icall y stop at t he sa me time .

<9> The fro nt pa nel l evel ga in cont rol.
<10 >The ne west MD c ompon ent tec hno logy ma kes the p rod uct m ore s tab le and re lia ble
<11 >The tr ansis tors di rectl y con tact wi th the he at sink t o mak e it co ol qu ickly.
<12 >The op timiz ation c oolin g syste m let t he mach ine wor k stabi lity, With au tomat ic

var iab le spee d fan.
<13 >The un ique sh ort ci rcu it lo cki ng and au tomat ica lly res et fu nctio n let the c ustom ers '

vis ual per formanc e mor e rel iab le.

Fre quenc y Respon se(at 1 Wa tt)

Total H armon ic Dist ortio n(THD )

Int ermod ulatio n Disto rtio n60Hz
and 7 KHz at 4: 1from fu ll rate d
out put to -30 dB

Sle w Rate

Volt age Gai n

Dam ping Fac tor(8 ohms) 10Hz­ 400 Hz

Sig nal-t o-Noi se Rati o (belo w
rat ed powe r,20 Hz to 20k Hz.
A-w eight ed)

Cro sstal k(bel ow rated p ower)

At 1k Hz
At 20 kHz

Inp ut Sens itivi ty for fu ll

rat ed powe r at 8Ω

Inp ut impe dance (nomi nal)
Bal anced
Unb alanc ed

1kH z(HIA )with 0.5%T HD

4Ω ste reo(pe r chann el)

8Ω bri dge mon o

Rated p owe r /m ode l

Per fo rmanc e

Const ru ction

Vent ilati on

Pro tectio n

Coo ling

Powe r cord sp ecifi catio n

Cha ssis si ze( uni t mm)

Net w eight

8Ω ste reo(pe r chann el)

20H z-20K Hz,+0 -1dB

<0. 5%,20 Hz-20 KHz

=/< 0.35%

>20 V/us

>20 0

>10 0dB

-75 dB

-58 dB

0.7 75V or 1. 4V

20K o hms
10k o hms

AK3 -1200

AK3 -1500

2x3 4dB+3 7.9dB

7.8 kg

482 x227x 88

205 0W 210 0W

2x3 5.2dB +38.4 dB

AK se ries pr ofess ion al audi o power a mpl ifier

2x8 90W+1 x2300 W 2x9 00W+1 x2470 W

2x6 00W+1 x1470 W 2x6 00W+1 x1600 W

10

Prot ectio n again st shor t circu its, no -load , on/of f mutin g, RF int erfer ence.

Flo w-thr ough ve ntila tion fro m front t o back

Int ernal he at sink s with fo rced ai r. Fan cool ed, spe ed regu lated ,
the rmal pro tecti on

Plu g Wire :：1 0A，250V 3x1 .0mm

1.T his amp lifie r only ca n plug in t he AC pow er so cket wh ich t he us er's ma nua l ins tru cts or

the s pecif icati on is sho wn on thi s adapt er. Or e lse i t may d amage t he ampl ifier a nd caus e
a fir e or el ectri c shock .

2.D o not pla ce heav y objec ts (inc ludin g this am plifi er) on th e power c ord , or el se it may

dam age the p ower co rd and th en ca use a n elect ric sho ck or fir e.

3.D o not exp ose the a mplif ier in th e fume, h igh hum idity, h igh tem per ature a nd du st

acc umula tion pl ace and u se.

4.D o not put t his amp lifie r sidel ong or up side do wn, use i t in a good a ir fl ow envi ronme nt.

5.W hen abn ormit y happe n in the op erati on proc ess , such as s mok e, od or, nois e, or f ore ign

bod ies, li quid en terin g into th e amp lifie r, ple ase t urn off t he am plifi er imme diate ly, an d
unp lug the s ocket f rom t he AC p owe r soc ket

6.W hen abn ormit y happe n, plea se don't o pen the c hassi s and reb uil t or repa ir th e amp lifie r

by yo ursel f, if the in terna l is su re to nee d rep air a nd ma int enanc e, plea se cont act the
dea lers to d eal wit h it.

1.W hen the s peake r is co nnect ed to t he am plifi er outp ut sock et, i t only ca n use t he

spe aker sp eci al cabl e and con nect it i n acc ordan ce wi th the pr ovi sions .

2.W hen con nect th e ampli fier, pl eas e clo se all th e instr ument s, audi o equip ments a nd

spe akers .

3.B efore t urn ing on th e ampli fier, pl eas e tur n down th e volum e to a mi nimum .

4.I f you do no t use thi s ampli fier fo r a long ti me, p lease u nplug t he powe r cord fr om th e

AC ma ins s ocket .

Oper ation：

Safe ty Operat ion

Caut ions

5.W hen unp lug the p ower pl ug from t he AC p owe r soc ket, pl eas e gra sp the pl ug. Do no t

dir ect ly pull t he cabl e. Othe rwis e it ca n damag e power c ord a nd th en lead t o a fire or
ele ctric s hock .

03

AK se ries pr ofess ion al audi o power a mpl ifier

Spec ificati on

09

AK se ries pr ofess ion al audi o power a mpl ifier

Fre quenc y Respon se(at 1 Wa tt)

Total H armon ic Dist ortio n(THD )

Int ermod ulatio n Disto rtio n60Hz
and 7 KHz at 4: 1from fu ll rate d
out put to -30 dB

Sle w Rate

Volt age Gai n

Dam ping Fac tor(8 ohms) 10Hz­ 400 Hz

Sig nal-t o-Noi se Rati o (belo w
rat ed powe r,20 Hz to 20k Hz.
A-w eight ed)

Cro sstal k(bel ow rated p ower)

At 1k Hz
At 20 kHz

Inp ut Sens itivi ty for fu ll

rat ed powe r at 8Ω

Inp ut impe dance (nomi nal)
Bal anced
Unb alanc ed

1kH z(HIA )with 0.5%T HD

4Ω ste reo(pe r chann el)

8Ω bri dge mon o

Rated p owe r /m ode l

Per fo rmanc e

Const ru ction

Vent ilati on

Pro tectio n

Coo ling

Powe r cord sp ecifi catio n

Cha ssis si ze( uni t mm)

Net w eight

8Ω ste reo(pe r chann el)

20H z-20K Hz,+0 -1dB

<0. 5%,20 Hz-20 KHz

=/< 0.35%

>20 V/us

>20 0

>10 0dB

-75 dB

-58 dB

0.7 75V or 1. 4V

20K o hms
10k o hms

AK2 -700

AK2 -1300

AK2 -1500

32. 8dB 35d B 36d B 37. 8dB 38.3 dB

AK2 -500

190 0W 2250W

AK2 -1000

335 0W

435 0W 460 0W

7.5 kg

482 x227x 88

2x9 50W 2x1 650W2x1 100W 2x2100 W 2x2 300W

2x5 00W

2x1 000W2x7 00W 2 x1380 W 2x15 20W

Prot ectio n again st shor t circu its, no -load , on/of f mutin g, RF int erfer ence.

Flo w-thr ough ve ntila tion fro m front t o back

Int ernal he at sink s with fo rced ai r. Fan cool ed, spe ed regu lated ,
the rmal pro tecti on

Plu g Wire :：1 0A，250V 3x1 .0mm

Pow er sw itc h: It c an turn o n/off t he am plifi er. When t urn o n, th e POW ER
LED l ights .

SIG

POWER

Fau lt LE D: Wh en circ uit p rotec tio n wor ks, the L ED will l ight, e speci ally
whe n the hea t-sink o verhe at or det ect t he DC vol tag e in the am plifi er,
the L ED will l ight. Tu rn on t he am plifi er with in th ree sec ond s, the
amp lifie r is read y to wo rk , the L ED will s hine. W hen fin ish sta rt or th e
pro ble m is remo ved , the LED w ill ext ingui sh, and r esu me work ing
nor mally.

FLT

CLI P

Cli p LED: Wh en the ou tput si gnal di stor tio n of th e cor res pon ding
cha nnel ex ceeds 1 %, the LE D will li ght , becau se of the s ign al leve l
is to o high, a nd have b een c ut-off.

Sig nal LED : when th ere is th e inp ut sign al, the L ED will l ight, i f not,
ple ase che ck the ga in sett ings, i f neces sary, c an in creas e the g ain.
Che ck the in put con necti on and si gnal au dio sou rce. If t he Cl ip LED
shi nes a lit tle or sh ows no si gnal, c heck th e outpu t wire wh eth er it is
sho rt-ci rcu it or n ot.

Main O peratio n Ke y& Functions

Front Panel

04

AK se ries pr ofess ion al audi o power a mpl ifier

Gai n contr ol: use t o set t he outp ut leve l of each c han nel

M1

M2
M3

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

OFF

ON

PARALLEL

M3

CH1CH3

ON

OFF

CH2

CH4

ON

OFF

SENSITIVITY

M1

M2
M3

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

OFF

ON

PARALLEL

M3

CH1CH3

ON

OFF

CH2

CH4

ON

OFF

SENSITIVITY

M1

M2
M3

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

OFF

ON

PARALLEL

M3

CH1CH3

ON

OFF

CH2

CH4

ON

OFF

SENSITIVITY

A

B

+

-

A

+

-

C

BD

C

+

-

D

+

-

08

A

B

+

-

A

+

-

C

+

-

D

+

-

A

A

+

-

C

C

+

-

2+

1-

2-

1+

+ to PIN 1 +

喇叭:

- to PIN 1 -

喇叭:

2+

1-

2-

1+

- to PIN 1 -

+ to PIN 1 +

喇叭:
喇叭:

2+

1-

2-

1+

- to PIN 2+

+ to PIN 1 +

喇叭:
喇叭:

Connection Mode

AK se ries pr ofess ion al audi o power a mpl ifier

Spea ko n output co nnectio n(4CH)

Ste re o connection

Mono connec ti on

Bridge connection

Rea r Panel

Main O peratio n & Functio ns

05

AK se ries pr ofess ion al audi o power a mpl ifier

220V~ 50/60 Hz

Mai ns sock et: C heck th e selec ted vol tag e wheth er it is co rrect o r not
bef ore usi ng th is ampl ifier I f the vol tage is n ot corr ect , it ma y damag e
the a mplif ier and c ause fi re.

Sig nal inp ut: The i nput in terfa ce conn ects to t he mixe r dir ect ly. The
inp ut of the c orr esp ondin g chann el and ou tput co nne ctor ar e
con necte d toget her t o pro vid e the fix ed conn ectio n, do n ot need t o
con sider t he powe r switc h set ting.

Out put con necti on: Amp lifie r outpu t chann el, it pr ovi des the o utput
by co nnect ing the S PEAKON con nec tor

Par all el ou tput XL R conne ctor: t his soc ket is pa ral lel w ith t he inpu t
XLR s ocket , inp ut dire ctl y outpu t via thi s soc ket, AK s eri es 2CH an d
3CH m odels h ave thi s funct ion.

M1

M2
M3

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

OFF

ON

PARALLEL

M3

CH1CH3

ON

OFF

CH2

CH4

ON

OFF

SENSITIVITY

PARAL LEL

OFF

ON

M1

OFF

ON

PARAL LEL

M2

OFF

ON

PARAL LEL

M3

Chann el m ode switc hi ng switch :

Mai nly com plete t he swit chi ng of MON O mod e and B RIDGE /PARAL LEL b y adj ustin g.
The re are M1 /M2 /M3 t hree di al sw itche s on th e rear pa nel , sho wn as M1 si lkscr een ,
whe n M1 dial s witch f ace s up whic h means C H1 is par all el to CH2 , whe n it face s
dow n which m eans it i s off. M2 an d M3 di al sw itch ar e the s ame p rinci ple.
Key s wit ch fu nctio n: when k ey sw itch fa ces d own w hich me ans CH1 i s paral lel t o
CH2 , when it f aces up w hich me ans it is o ff.

ON

OFF

ON

OFF

SENS ITIVI TY

Mode Sw itch:

MON O mode: m ake the t wo ch ann el work i ndepe ndent ly, CH1 in put sig nal by

CH1 o utput , CH 2 inpu t by CH2 ou tput.

BRI DGE mod e: make C H1 in put sig nal f rom the B RID GE outp ut sock et ou tput,

mus t use the v olume c ontro l of CH 1 to ad jus t the vol ume

PARA LLE L mode: m ake CH1 i npu t sig nal by CH 1 and CH2 o utput s ock et ou tput.

The i nput so cket of CH2 is n o eff ect . Chann el's volum e can b e adj usted

ind epend ently

SENS ITIVI TY

Key S witch F uncti on

Dia l Switc h

Sen sitiv ity mod e: It mai nly adj usts th e ratio b etwee n the i nput an d
out put.

M1

M2

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

CH1CH3

ON

OFF

SENSITIVITY

M1

M2

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

CH1CH3

ON

OFF

SENSITIVITY

M1

M2

PARALLEL

OFF

ON

M1

OFF

ON

PARALLEL

M2

CH1CH3

ON

OFF

SENSITIVITY

B

+

-

C

+

-

A

+

-

C

B

B

+

-

C

+

-

A

+

-

A

C

+

-

A

+

-

C

A

A

2+

1-

2-

1+

+ to PIN 1 +

喇叭:

- to PIN 1 -

喇叭:

2+

1-

2-

1+

- to PIN 1 -

+ to PIN 1 +

喇叭:
喇叭:

2+

1-

2-

1+

- to PIN 2+

+ to PIN 1 +

喇叭:
喇叭:

Connection Mode

AK se ries pr ofess ion al audi o power a mpl ifier

Spea ko n output co nnectio n(3CH)

Ste re o connection

Mono connec ti on

Bridge connection

07

M1

M2

PARALLEL

OFF

ON

M1

CH1CH3

ON

OFF

SENSITIVITY

M1

M2

PARALLEL

OFF

ON

M1

CH1CH3

ON

OFF

SENSITIVITY

M1

M2

PARALLEL

OFF

ON

M1

CH1CH3

ON

OFF

SENSITIVITY

06

Connection Mode

AK se ries pr ofess ion al audi o power a mpl ifier

Spea ko n output co nnectio n(2CH)

Ste re o connection

Mono connec ti on

Bridge connection