5
5..ANTI-FEEDBACK.knob,.ON /OFF.switch
If.the.volum e.level.of. the.MMA130.is. very.high,. feed-
back. may. occur. between. the. mic rophones. and. the.
musical. instruments. that. are. c onnected. to. channels.
1–4..If.this. happens,.set.the. ANTI-FEEDBACK. switch.
to.ON,.th en.rotate. the.ANTI- FEEDBACK.knob. slowly.
to.eliminate.the.feedback.
6..POWER MODE.switch
Set.the.switch.to.ECO.to.set.the.amplifier.power.output.
to.5W.during.bat tery.operation. in.order.to.re duce.bat-
tery.power.consumption.
7..STANDBY.switch
This.is.the.power.switch.of.the.MMA130.
When.set.to.the. BATTERY.position,.the. unit.will.oper-
ate.on.batteries.. If.you’re.using.AC. power,.turn.on.th e.
POWER.switch,.and.then.set.t his.switch.to.the.AC.po-
sition.to.turn.on.the.power.
Power indicator
The.power.indicato r.will.light.up. when.you.turn. on.the.
STANDBY. switch.. When. running. on. batte ries,. the.
brightness.of.this.LED.indi cates.the.remaining.amount.
of.battery.life..When.the.power.indicator.be comes.dim,.
it’s.time.to.replace.the.batter ies.
Rear panel

1 2 43 5 6 7

1..INPUT CH1, CH2.jacks
These.balanced.input.jacks.accept.either.XL R.plugs.or.
TRS.1/4".phone.plugs.
2..INPUT CH3, CH4.jacks
These.input.jacks.accept.standard.1/4".phone.plugs.for.
LINE.connection.
Connect.electronic. musical.instrume nts.or.audio.play-
ers.here.
GROUND LIFT.switch
In.some.cases. when.using.the. MMA130’s.DC9V.OUT.
jack,.a. ground.lo op.may. occur,.causin g.noise.. If.this.
occurs,.you. may.be. able.to. solve.the. problem.by. us-
ing.the. chan nel. 3. and. 4. input. jacks,. and. s etting. the.
GROUND.LIFT.switch.to.the.LIF T.position.
3..LINE OUT.jack
This.connector. outputs.audio.t hat.combines.c hannels.
1–4.pre-EQ.signals .
4..AUX IN.(stereo).jacks
These.jacks.support.RCA. plugs.(L/R),.1/8”.mini.stereo.
plugs,.and.standard.1/4”.phone.plugs.(L /R).
Connect.the.analog.audi o.outputs.from.your.audio.d e-
vices.to. these.j acks..These. are.us eful.if. you.want. to.
connect.a. CD.or.MP3. player.to. play.back.mu sic,.and.
play.along.on.your.instrument.
Note:.T he.MASTER. VOLUME.kno b.and.EQUA LIZER.knobs.
do.not.affect.the.sound.of.a.device.connected.to.the.AUX.input.
jacks.
5..DC9V OUT.(DC9V.power.output.conn ector)
This.c onnector. supplies. powe r. to. a. connected. Korg.
product.that.operates.on.DC9V.(max..500.mA,.polarity:.
),.such. as.a. WAVEDRUM..Use. the.dedic ated.
DC-DC.cable.that’s.inc luded.in.the.package.
Supported Korg pro ducts
WAVEDRUM,.PS60,.micr oSTATION,.microKORG.XL,.
microSAMPLER,. micro PIANO,. KAOSS. PAD. Quad,.
KAOSSILATOR.PRO,.monotoribe
Note:.T he. output. from. t he. DC9V. OUT. jac k. may. be. cut. off.
in.ord er. to. prevent. overcurren t. or. battery. exhaust ion.. This.
means.that.the.power.supply.to.the.connected.device.might.be.
interrupted.withou t.warning..Please. be.aware.of.thi s,.particu-
larly.if.using.the.DC9V.O UT.jack.while.operati ng.the.MMA130.
on.batteries.
Note:.I f.an.unsupported.device.is.connec ted,.you.might.expe-
rience.noise. or.other.p roblems,.even. if.the.devic e.meets.the.
recommended.specif ications.
Note:.P ay.attention.to.the.polar ity.of.this.connec tor.when.you.
connect.a.device.
Caution
:.Never.c onnect.an.AC.adapter.her e.
6..AC.power.connector
Connect.the.included.power.c able.
7..POWER.switch
This.supplies. power. when.using. the. MMA130.on. AC.
power..Connect. the.power. cable. to.the. AC.inlet,. and.
turn.on.this.switch.to.supply.power.
Note:.T he.MMA130.does.not.feature.a.bat tery.charging.f unc-
tion.
Tip:.If. t he. unit. is. conn ected. to. an. AC. powe r. outlet,. bat tery.
power.will.not.be.consumed.