Akai PEQ6 User manual

r-"
AKAI
pyofessiona[
PEQE
PROGRAMMABLE
EQUALIZER
J
To prevent
fire or shock hazard,
do not exposethis
appliance
torain
ormoisture. Operator's
Manual

{,( "G
WarningL"
tPrecautions
Powerrequirements
Power requirements
for electrical
equipment
differ
fromarea
toarea.
The operating
voltageof thismachine
ispreset
atthe
factory
according
to it's intended
destination.
Howev-
er, some
models
areequipped
with avoltageselector.
If your machine
is so equipped,
beforeconnecting,
check
to see thatthe VOLTAGE SELECTOR
on the
rear
panel
is
set
tothevoltage
foryour area.
If not, please
set it correctly
before
plugging
in the
power
cord.
220Y,50H2
for Europe
except
the
UK.
240Y,50H2
forUK andAustralia.
l20Y,60HzforUSAand
Canada.
If theVOLTAGE
SELECTOR
is
notset
for
your
area:
Confirm
that
the
power
cord
isdisconnected.
Move theVOLTAGE SELECTOR
with ascrewdriver
so
that
themarkerisabove
thevoltage
foryour area.
What you should know to protect
yourself
andtheAkai PEQ6
rilatch
out!Youmightget
anelectric
shock.
o Never
touchthe
plug
withwethands.
o Always
pull
outbythe
plug
andnever
the
cord.
o Only let
a
qualified
professional
repairorreassemble
the equipment. An unauthorized
person might
touchthe
internal
parts
andreceive
a
serious
electric
shock.
o Never allow a child to put anything,especially
metal,intotheequipment.
Let'sprotect
theAkai PEQ6too.
o Use onlyahouseholdAC power
source.
Neveruse
aDC power
source.
o If waterisspilled
ontheequipment,
disconnect
the
power
andcall
your
dealer.
o Makesure
that
the
equipment
is
wellventilated
and
away
fromdirectsunlight.
o To avoid
damage
totheinternal
circuits
andtheex-
ternal
surface,
keepaway
fromheat
(stoves,
etc.)
o Avoid usingspray
typeinsecticide
near
theequip-
ment.It can
damage
thefinishand
might
ignitesud-
denly.
o To avoiddamaging
theÍinish,
neverusedenaturat-
edalcohol,
paint
thinneror other
similar
chemicals
toclean
the
equipment.
o Placetheequipment
onaflatandsolidsurface.
To enjoy
the Akai PEQ6
for a longtime, please
read
this
operator's
manual
thoroughly.
Should
a problem
persist,
write downthe modeland
serial
numbersand
allpertinent data
regarding
warran-
ty coverage as
wellasacleardescription
ofthe existing
trouble.Then, contact
your nearest
authorizedAkai
ServiceStation,
or the Service
Departmentof Akai
ElectricCompany,
Tokyo,
Japan.
FOR
CUSTOMERS
IN THE UK
IMPORTANT
FOR
YOUR
SAFETY
The flex supplied
with your machine
will havetwo
wiresas
shown
intheillustration.
T\ryOCOREFLEX
IMPORTANT
The wires in this mains
lead
are
coloured
in accor-
dancewith the followine
code:
Blue:
Neutral
Brown:
Live
Asthe coloursofthewires
inthemainsleadof thisap-
paratus may nol corre-
spond with the coloured Blue
{Neutrál)
markings
indentifying
theterminals
in yourplug,pro-
ceedasfollows:
The
wirewhich
iscoloured
bluemust
beconnected
to theterminal
which
ismarked
withthe
letterN orcoloured
black.
Thewirewhichiscoloured
brownmustbeconnected
to the terminalwhichis marked
with the letterL or
colouredred.
* Do notconnect
any
wire
tothelarger
pin
markedE
or f whenwiring
a
plug.
Ensure
thatallterminals
are
sècurely
tightened
andthatno loosestrands
of
wireexist.
A
A\:
A
The lightning flash with the arrowhead
symbol superimposed across a graphical
representationof a person, within an equi-
lateral triangle, is intended to alert the
user to the presence of uninsulated
"dangerous
voltage" within the product's
enclosure,that may be of sufficient magni-
tudeto constitute
ariskof electricshock.
The exclamation point within an equilater-
al triangle is intented to alert the user to
the presence of important operating and
maintenance (servicing) instructions in
the literature accompanying
the appliance.
AffiA
CAUTION,TO REDUCETHERISKOFELECTRICSHOCK
DONOT
REMOVE
COVER
(OR
BACK)
NO
USER.SERVICEABLEPARTS
INSIDE
REFER
SERVICING
TO
OUALIFIEDSERVICE
PERSONNEL
Note:Thisunitisnotequipped
withavoltage
selector

tF
CAUTION
To prevent electric shock, do not usethis pole-
rized AC power plug with an extension cord re
ceptacle
or other outlet inless the bledcscu lc
fully inserted
toprevent
blade
exposure.
LITHIUM BATTERY
This productusesa lithium bettery for memory
back-up. The lithium battery should only bero'
placed
byqualified service
personnel.
Improperhandling maycauserisk ofexplcion.
Features
Thank you for purchasing the Akai Programmable
Equelizer
PEQ6.
The unit described
here is a programmable multi-
channel ?-band equalizer equipped with a 7-band
equalizer
for 6systems
of audio
input and
output'
This is r detailedpresentationincluding a "Guide to
Operetions," etc., in orderto enableyou to take ad-
vantegeof the outstanding
functionsof the PEQ6'
Beforeusing
thePEQ6,
please
read
these
instructions
for use
carefully. \Verecommend
that youkeep
thein-
struc{ionsfor use,together
with the guarantee,
close
athendwhere
theywill be
easy
tolocate
if needed'
o The PEQ is a 6 input/6 output system. Each
input/output is equipped
with six 7-band
equalizer
units.
o Eech6 channels
of equalizing
datacanbestored
esI bank in memory
for atotal of 32banks' and
by meens
of MIDI, bank changes
canbecarried
outexternally.
o Optimal for equalizing programs on the mixing
network
ofthe
multi-keyboard
section.
o Optimal for equalizing
ofeach
effecter
ontheeffec-
ternetwork.
o Tone
qualityofthesynthesizer
and
sampler
can
be
variedby powerful equalizingusing the stackcon-
nection.
a
J

Nomenclature
and
Operation
ofParts
O
e pownn: When
it isset
toON,*00"
Thisisthe Power
switch
is
displayed.
BANK/MIDI:
Used
for selecting
memorybanks
andsetting
MIDI
channels.
Whenthe UP button ispressed,
thevalue
of the number displayed increases,and when
DO\ryNispressed,it decreases.
e nqull,,tZERGAIN:
Usedfor èqualizing
data
for each
channel'
Seven
central
frequency
bands:
63 Hz, 160
Hz, 400
Hz,
I kHz. 2.5 kHz. 6.3 klj'z, 16 kHz. Maximum of
l2 dB
boosting/cutting
possibleoneach
band'
@
ne.Nr
uP:
Bank
canbe
changed
using
afoot switch'Please
con-
nect
this
tothe
AkaiPS-X80. a
@
lrNn:
This button sets
the equalizing
channel'When the
display
shows"00," this button is not operational'
Channel
settings
areoperational
whenthebankdis-
play
shows
u0-32."
Can
also
beused
for setting
MIDI channel'
@
copv/wRITE:
Equalizingdata set on a particularchannelcan be
copied
as
thedata
of thenext channel,
or themulti-
equalizing
data
of abankcanbe faithfully copied
to
another bank, and the programmeddata can be
written
intothe
memorY
bank.

'Jffi[TIf
''{'rilcttj
',í Èrrl
't it$íll'
O INPUI (IINE I.LINE 6):
This is the input terminal. Be sureto usethis with
linelevel.Microphone
cannot
be
connected.
O OUTPUT
(LINE
I-LINE6):
This is the output terminal.Optimum load impe-
dance
isl0 k ohms
orabove.
@
vrnr (IN,
our, THRU):
J Used
forconnection
toexternalMIDI unit.
IN + PEQ6bankchange
canbecarriedout on ex-
ternalMIDI unit.
OUT + Program
change
information canbe trans-
mitted
fromPEQ6
toexternal
MIDI unit.
THRU + A throughterminal for sending
informa-
tionreceived
withMIDI IN.

onnection
lF- 5
C
The PEQ6
input/outputjacksarefor use
with standard
phone
jacks.
A microphone
cannotbe connected
be-
cause
theinput/output
level
isline
level.
INPUT (LINE l-Line 6): Connect
to "output" of
keyboard,synthesizer,
effecter,
etc.
OUTPUT (LINE I-LINE 6): Connect
to "input" of
effecter,
mixer,
amp,etc.
MIDI IN: Connect
to MIDI OUT OT
MIDI THRU Of
other
MIDI units.
* The MB76 referredto in the diagram
isa 7input/6
output programmable
mixing bay.Use
if for greater
effectiveness.
MIDI OUT:Connect
toMIDI IN ofother
MIDI units.
MIDI THRU: This is also
connected
to MIDI IN of
other
MIDI units.
KEYBOARD
SYNTHESIZER
MIDI/EFFECTOR
M876
KEYBOARD
SYNTHESIZER
EFFECTOR
M876
KEYBOARO
SYNTHESIZER
MIDI/EFFECTOR
M876
EFFECTOR
MIXER
AMP
M876
t,
PEQ6rearpanel

w
Operation
ThePEQ6
displays
"00" when
thepower
b g to ON.
Thisisthemode
of operation
asa6 in/ó oui'bormel
multi-channel
7-band
equalizer."However,
dl óórÍr-
nels havethe sameequalizing.
Concerning
idiyidusl
equalizing
for each
channel,
please
reedthe rctin on
"Programming."
The result of equalizing
cannot be stored in the
memorybanks
whenthedisplay
is
in"00" mode.
PEQ6configurationchart
"jqO equalizingisthe
same
as
"boost/cut"on
a
gener-
al slide volume type graphics
equalizer.
All rotary
knobs are set to the center (Flat). The knobs are
turned to the right for "boost" and the red LED
comeson.They
areturned
totheleftfor "cut" andthe
green
LED comes
on.
Furthermore,
to settheequalizer
gain
to boostor cut
when
it isprogrammed
toflatasexplained,
set
it tothe
flat
position
whenit isnotsettoflatthen setit to boost
(the
LED lightsred)ortocut(ttre LEO lights
green).
lkHz lkHz
-E E=
.í@)"*:
-rc +rc
LED off + Flat
LED red+ Boost
LED green
+ Cut

This "00" mode is usedwhen carryingout the stack
equalizing
technique.
Equalizing
canactually
becarried
outby
makingstack
connections
ofup to3stages.
As a principle,PEQ6 is programmed in the order
(Bank number selection) + <Equalizing
channel
selection (LINE)> + (Equalize) + (Bank
numberverification) + <WRITE>.
Note: If channel
"6" isequalized.thedataisstoredin
BANK*32.''
Procedure
OFirst,
press
POIYERtoset PEQ6
power
toON.
Next, press
UP underBANK/MIDI andcontinue
pressing
until the numberdisplayed is ":2." !
otherwords,
thisis <Banknumberselection
) .
AAilK/MIOI
mwl f
ttl
ttL Tffi
aÀ[tcmco,LlD -c*].'
^
CharacteristicsofStack
Equalizing
BOOST
MAX +t2dBr-)
-
CUT
MAX
-t2dB
In 3-stagestack
equalizing,the boost/cut
amountis
plus
or minus36dB,andthispower
makesit possible
to makea
widerangeof sound
quality
corrections.Use
thisfor correctionof the electricsound
of thesynthesi-
zer,
sampler,
etc.,
andforacousticsound.
@ Then,press
theLINE button
and
set
thedisplay to
"6".

@ Equalizingas carriedour by adjusting
eachof the
EQUALIZER GAIN knobs.When rhe knobs are
turnedfrom the "cenrer" position
to the rithr for
"boost," theredLED comes
on,and
when
lheyare
turned
to the left for "cur," rhe green
LED omes
on.When the knobs
have
beenturned.'_" is dis-
played
in thelowerright porrionof thedispley.This
isanindicator
showingrhatprogÍaÍnminS
isin pros-
rESS.
@ When equalizing
is completed,
press
eitherUp or
DOWN again
under BANK/MIDI, andcheckto
besure
thatthe
banknumber
is
"32."Ifyouchange
toa
different
banknumber
atthis
time,the
equaliz-
ing
datacannot
be
stored
inmemory.
After verifying
thebanknumber
youwishto store
in memory,
press
theCOPY/WRITE buuon.
The
displaywill blink onandoff. If theCOPY/WRITE
buttonis pressed
again,thedisplay will stopblink-
ing,the indicator "." which
was
displayed
in the
lowerrightportion
ofthe
displaywilldisappear,
and
the batchdatawill be storedunder the memorv
number"32."
ng
CopyFunction
The PEQ6
has2 kindsof equalizing
datacopyfunc-
tions.
1. LINE (CHANNEL)
COPY
This is a copyfunctionfor operations
carried
out
before storagein the memory banks. It allows
equalizing
data
set
ataceÍtainLINE channelto be
copied'to
anotherLINEchannel.
2. BANKCOPY
Thisfunction
allowsequalizing
datastored
atacer-
tainbanknumber
to befaithfullycopied
toanother
banknumber.
Copying
1. LINE (CHANNEL) COPY
Example:LINE "ó" equalizing
dataset at channel
"32" isto
becopiedtoLINE"2".
Procedure
C First, press
the UP button under BANK/MIDI
and
set
it tobank number
"32."
Next,
press
LINE andsettheLINE
channelto"6."
When
theCOPY/WRITE buttonhas
been
pressed
andthe"6" displayedisblinking,
press
LINE toset
theLINE
channelto"2."
@Press
the
COPY/WRITE
buttonagain.The
display
will stop
blinkingand
"copying
completed"
will be
displayed.
a
Q'
Thisbutton
may
alsobeused
stinki-n,noi.ptuu
,h|| press
again

@ When the UP or DOWN button under BANK/
MIDI is pressed
once(do not press
it twice),the
< LINE COPY
> bank number
data
appears
onthe
display.
,OPress
theCOPY/\ryRITEbutton
twice'
This
causes
the datawritten into the <LINE COPY> batch
data
in that
bank
tobestored
anew.
Ifanotherbank
numberis selected
withoutcarring
out this"resto-
rage,"
the<LINE COPY> data
isnotstored.
2. BANKCOPY
Example:banknumber "32" equalizer
date
is to be
copied
tobank
number
"l."
Procedure
O First, set bank number "32" by pressing
the UP
button
under
BANK/MIDI.
@ Next,press
theCOPY/WRITE button.
Thedisplay
willblinkonand
off.
@ Then, set bank number "1" by pressing
the
DOWN
button
under
BANK/MIDL
@ Press
theCOPY/WRITE button
again.
Thedisplay
will stop blinking
and
change
to "copying
complet-
ed".
Equalizing
DataClear
Function
The PEQ6
hasa functionwhich canclear
all stored
equalizing
data.
Operation:
If the POWER is setto ON whilesimul-
taneously
pressing
the UP and DOWN
buttons under BANK/MIDI, the
memory
isfully
cleared,
andthe
equalizing
gain data is all initialized
to the "Flat"
state.
BANK UPFunction
UsingFoot
Switch
Whenafootswitch,
such
astheAKAI PS-X80'
iscon-
nected
to theBANK UP on thefront panel,
thebank
numbercanbe switched
(BANK UP) using
the foot
switch.
The banknumberincreases
by oneeach
time
theswitch
is
pressed.
anditreturns
to"1"after
"32."
MIDI
When
shipped
from the
factory,
theMIDI channel
set-
ting
on thePEQ6
isset
to "CH.l." If it is
set
to any-
thing else,
the lollowing operations
should be per-
formed.
O First,set
thePOWER
to ONwhilesimultaneously
pressing
the
LINE and
COPY/WRITE
buttons.
@ Next, use
theUP or DOWN button
under
BANK/
MIDI to set
thedesired
MIDI channel
(1-16).
@ Then, press
the LINE button.
The number
di'-
played
will change
to "00," and
theunitwill go
ivr
normal
multi-channel
7-band
equalizer
mode.
@ Using the UP or DOrilN button under BANK/
MIDI, select
thebank
number.
Note: The newMIDI channel
setting
remains
stored
in memoryeven
when
thepower
isturned
off.
If you wish to change
the setting
onceagain,
reset
it following
the
above
procedures.
i it -l
Normal:short
When pressed

r--
PEQ6DataSheet
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Specifications
Type:. ..Programmable
multi-channel
7-band
equalizer
Numberofinput/
output
channels:
......Input:6ch.
Output:
6ch.
Basic
input/
outputlevel:.. .Input:0dBm
Output:
0dBm(optimum
Maximuminput
level:.
.. * 20
dBm
Input/output
impedance:. ...Input:47kohms
Connectionterminals:
...MIDI: IN, OUT,THRU
(DIN5P)
INPUT:6
(standard
phonejack)
OUTPUT:6
(standard
phone
jack)
BANK UP:
(using
standard
phone
jack/foot
switch)
Externaldimensions:.
...
480
(W)x43
(H)x 120
(D)mm
Weight: ........2kC
loadlOkohmsorabove) Powerconsumed:
....... 13W
Output:
600ohms
Equalizer: ......Gain: plusorminus12dB * Specifications and external
dimensions
may be
(plus
orminusI dB) 1dB changed
without notice for purposes
of impro'
step ment. V
Centralfrequency:
..... .63Hz,160Hz, 400H2,
lkHz,2.5kHz,6.3
kHz,
16kHz (plus orminus
200/0,
Q:1.5)
Special
frequency
characteristics:
... ... .20Hz-20kHz
(+0.5dB,
when
flat)
Distortionfactor: 0.010/oorbelow
S/N ratio:
(0
dBmoutput/whenflat)
0.050/o
orbelow
(total
boost)
0.050/oor
below
(total
cut)
_95 dB
(IHF)
Crosstalk: ......-70dB
(1
kHz,0
dBm
input)
Functions: .. .... BANK/MIDI,DOWN,
UP
LINE
COPY/V/RITE
EQUALIZERGAIN
(7
band)
Display: .7-segmentLED
(2
columns)
AKAI
AKAI
ELECTRIC
CO.,LID.
12.14, 2-chom., H'góhLKoiiya,
Ohr.-k0. Tokyo, Jap.n
v
hinted in Japan
o620714D1 620717-c1