Sequential Split-Eight Operation Manual

Announcing

The

Split-Eight,

Sequential^

New

8-Voice

Programmable

Synthesizer!

The

Split-Eight

isafully

programmable

eight

voice

synthesizer

featuring

a

full

5-octave

keyboard

and

programmable

keyboard

split

for

$1,195.00

suggested

retail.

And

that's

just

the

beginning!

For

instance,

The

Split-Eight

offersachoiceoffour

keyboard

modes:

Single,

Unison,

DoubleorSplit.InSingle

Mode,

the

same

soundisplayed

across

the

lengthofthe

five-octave

keyboard.

This

provides

the

user

with

eight

full

voices

for

traditional

polyphonic

playing.

Unison

mode

assigns

all

eight

voicestoa

single

note,

creating

a

very

full,

bold

sound

ideal for

lead

synth

playing.

Double

mode

lets

the

user

layer

different

soundsontop

of

each

other.Inthis

way,

two

sounds

are

triggered

by

each

keytocreate

complex

sounds

utilizing

the

full

programming

capabilities

of

two

independent

oscillators,

filters,

and

VGA's

at

one

time.

The

exciting

Split

Modeisparticularly

useful

in

performance,

becauseitlets

the

user

play

different

sounds

at

each

endofthe

keyboard

(suchasplaying

a

bass

sound

with

the

left

hand

andaflute

with

the

right)!

The

split

point

canbeprogrammed.

WheninSplit

Mode,

the

instrument

automatically

assigns

four

voicestoeach

side

of

the

split

point.

The

Split-Eight

also features

a

programmable

link

feature

which

lets

you

callupSplitorDouble

programs

simultaneously.

The

fully

programmable

Split-Eight

comes

with64pre

programmed

sounds,

including

a

variety

of

original

sounds

and

several

impressive

orchestral

and

keyboard

timbres.

All

sounds

can be

easily

modifiedorreplaced

with

custom

sounds.

A

built-in

chorus

provides

programmable

on/off

chorusing.

The

Technical

Stuff

Eachofthe

instrument's

eight

voices

feature

a

multi-

waveform

VCO,a4-pole

lowpass

filter,

a

VCA,

two

ADSR

envelope

generators

andanLFO.

The

Split-Eight

comes

with

64

pre-programmed

sounds.

Creating

custom

soundsiseasy!

Thereisa

graphic

matrix

which

allows

fast

selection

and

easy

editingof31

different

parameters.

LEDs

clearly

indicate

the

selected

program,

and

if

the

programisbeing

edited,

will

also

display

the

parameter

value.

The

back

panel

contains

individual

outputs

for

channels

A

andBalong

witha1/4"

main

output

that

gives

you

the

chorus

mix.

Cassette

In

and

Out,amulti-purpose

footswitch,

and

MIDI

Input

and

Output

are

also

included.

Sequential

supports

the

Split-Eight

withanextensive

array

of

MIDI

functions.

Modes1and3(Omni

and

Poly)

are

available

along

with

the

ability

to

disengage

MIDI.

Each

side

ofasplit

program

maybeassignedtoa

separate

MIDI

channel. This

allows

the

usertocontrol

other

MIDI

keyboards

independently

with

each

sideofthe

keyboard.

Through

MIDI,

the

Split-Eight

can

send

and

receive

program

change

information,

and

transfer

programstoand

from

a

second

Split-Eight.

Other

MIDI

features

include

the

ability

to

receive

and

send

pitch

bend

and

modulation

information.

SPLIT-EIGHT

SPECIFICATIONS

VOICES:

Split-Eight

isaneight-voice

polyphonic

synthesizer.

Each

voice

consists

of:

One

Voltage-Controlled

Oscillator:

Waveshapes

available

are

sawtooth,

triangle,

and

variable

pulse.

Timing:

9-octave

range.

One

Voltage-Controlled

Lowpass

Filter:

24dB/octave

slope.

One

Voltage-Controlled

Oscillator:

Waveshapes

available:

Square

wave,

Rate:

1-33

Hz.

Waveshapes

available:

Triangle,

Rate:

1-12.5

Hz.

IWo

Envelope

Generators

(filter,

amp):

Attack:7milliseconds

-11seconds.

Decay:7milliseconds

-11seconds.

Sustain:

0to10

Volts.

Release: 7

milliseconds

-14seconds.

PROGRAMMABILITT:

31

Parameters

are

available

for

programming.

KEYBOARD:

Five

octave(Cto

C).

Split

Keyboard

range:

2

octaves

(C2toC4).

Link,

Split,

Double.

CHORUS:

Programmable

On/Off.

OUTPUTS:

Audio

Output:

1/4"

phone

jack

(mix).

Separate

audio

outputs

forAandB(4

voicestoeach).

Tape

Out:

For

saving

programstocassette.

One

MIDI:5pin

DIN.

INPUTS:

One

MIDI:5pin

DIN.

Tape

In:

For

loading

programs

from

cassette.

Footswitch

Jack:

1/4"

phone.

MIDI

IMPLEMENTATION:

(partial

list)

MIDI

Modes:

OMNI

Mode.

POLY

Mode

Separate

MIDI

channels

for

each

sideinSplit

Mode.

Channel

Assignment:

Channels01through

16.

Program

Select

Enable/Disable.

Wheel

Enable/Disable.

Program

Send/Receive:

Send1program.

Local

Off:

(for

Channel

B)

Allows

separate

controlofChannelBover

MIDI.

UNIQUE

FEATURES:

1)

Delay:

wheninunison,

the

triggering

of

half

the

voices

canbedelayedby20,

40,or80

milliseconds.

2)

Poly

Mode:

WheninDouble

Mode,

this

assigns

the

entire

audio

outputofprogramBto

the

filter

input

of

programA(replacing

A's

oscillator).

3051

North

First

Street

San

Jose,CA95134

Telex:

4997150

SEQC1R

In

Europe:

Sequential/Europe

P.O.

Box

16,

3640AAMijdrecht

The

Netherlands

Telex:

12721

SQNTL

OPERATION

MANUAL

PREPARATION

TableofContents

PLAYING

Introduction

Tuning

Preset

Mode

Single

Mode

Link

Mode

Split

Mode

Double

Mode

Wheels

and

Footswitch

Programmable

Parameters

3

•3

4

5

6

PARAMETERS

Editing

and

Programming

Selecting

Parameters

Adjusting

Parameter

Values

Cancelling

Edits

Recording

Edited

Programs

Copying

Programs

Basic

Patch

Performance

Parameters

Glide

Chorus

Unison

Delay

Footswitch

Accent

Footswitch

Sub-program

Synthesizer

Parameters

Oscillator

Group

LFO

Group

Filter

Group

Amplifier

Group

7

8

9

10

12

Kf

15

17

CASSETTE

INTERFACE

Connections

Save

Verify

Load

19

MIDI

Connections

Keyboard

ChannelBLocal

Control

Disable

Channel

Selection

21

CM608

A

iii

MIDI

Disable

MIDI

Enable

MIDI

Expand

Mode

#1

Mode1Select

02

Dump

Programs

03

Mode3Select

05

Enable/Disable

Program Changes

06

Enable/Disable

Wheel

Changes

Program

DumpbyMIDI

Request

TunebyMIDI

Request

MIDI

Specification

Transmitted

Recognized

21

22

23

CM608A

PREPARATION

WARNING!

Switch

power

off to

all

equipmentinuse

before

connectingordisconnecting

anything.

1.

Connect

audio

outputs.

Foramonophonic

system,

use

MIX

OUTPUT.

This

signal

contains

both

theAandBchannels,

plus

the

chorus.

Note:

The

built-in

chorusisonly

availableatthis

output.

Forastereoormixer-input

system,

use the

separateAand

B

OUTPUTS.

This

willbemost

useful

when

the

keyboardisin

Split

or

Double

mode.InSplit

mode,

ChannelAcomes

from

the

right

side

of

the

keyboard

and

ChannelBcomes

from

the

left.InDouble

mode,

playing

anywhereonthe

keyboard

plays

both

channels

simultaneously.

2.Ifdesired,

connect

optional

footswitchtoCASS/FTSW

IN.

Use

Sequential

Model

839orequivalent

(momentary-type,

normally

open).

The

footswitch

control

functions

are

explained

below,

under

Performance

Parameters.

3.

For

cassette

interface

connections

see

Cassette

Interface

section

(below).

4.

For

MIDI

connections,

see

the

MIDI

section

(below).

CAUTION!

Before

proceeding,

check

that the

power

switchisset

to

OFF.

5.

Connect

power

cabletoa

properly-grounded

power

line.

6.

Switch

power

on.

Normal

indications

are that

the

right

display

counts

from

"1"

to

"8",

indicating

which

voiceistuning

up.

When

this

ends,

Preset

lights,

and

program11is

automatically

selected.

If

youdonot

obtain

these

visual

indications,

check

your

power

source

first,

then

the

fuse

(1/2A,

slo-blo).

CM608A

CAUTION!Topreventaloud pop,

when

switching

Split-Eight

power

off,

switch

off

amplifier

power

first.

Also,toprotect

the

memory,

use

the

power

switchonthe

backofthe

Split-Eight

(rather

than

unplugging

it).

7.

Adjust

VolumeAand

B.

CAUTION!Toprotect

ears

and

speakers,

before

playing,

reduce

both

VolumeAandBto

minimum.

.Then

play

the

keyboard

and

increase

both

volumes

gradually.

Note:

The

volume

controls

are

also

usedtobalance

the

channels,

so

you

will

often

wanttoadjust

them

simultaneously.

(For

best

signal-to-noise

ratio,

raise

theAandBVolumes

while

lowering

the

amplifier

gain.)

8.

Check

that

the

Pitch

wheeliscentered.

Always

start

with

this

wheel

centeredinits

"detent."

From

this

positionitis

possibletobend

pitch

upwardsordownwardsbyas

much

asamajor

3rd.

9.

Check

that

the

Mod

wheelisfully

down

(towards

you).

Start

withaminimumofmodulation.Toincrease

modulation,

move

the

wheel

forward.

The

effectofthis

depends

upon

the

selected

program.

10.

Center

Master

Tune.Oradjustasneededtotune

the

Split-Eight

toapiano,

for

example.

CM608A

PLAYING

INTRODUCTION

At

this

point,

power

has

been

switchedonand

the

wheels,

Master

Tune

and

Volume

knobs

have

been

positioned

correctly

(see

"PREPARATION11).

Only

the

Preset switchison.

Basically,

playing

the

Split-Eight

isamatter

of:

1

Selecting

the

keyboard

mode:

Single,

Split,orDouble.

2.

Selectin!

the

desired

program

(Single

mode)orprograms

(Split

or

3.°PUying°th^

keyboard

and

using

the

wheels

for

expression.

This

section

covers

these

activities.

The

Split-Eight

comes

pre-programmed

with 64

r*^*""*

Drofcrams.

These

represent

a wide

rangeofuseful

instruments

and

Ks?The

sound

programs

stayinmemory

even

when

power

is

switched

off.

After

familiarizing

yourself

with

the

Split-Eight

and

its

factory

mmmsTtry

creating

your

own

sound

programs

by

studying

the

PARAMETERS

section.

TUNING

Before

olavin*

however,

you

mustbeaware

that

the

Split-Eight

uses

££

oPs1^tors

which

driftinresponse

to

changing

temperature

So

UwMsound

outoftune

foralittle

whileasit

warms-up™*W£

Einht

also

includesanautomatic

tuning

system

which

retunes

the

osHllatofs

wnenThl

Split-Eight

is

not

being

played

(but

powerisstill

on!)

If

the

Split-Eight

is

tuningavoice while

you

wanttoplay,

thisisno

it

retunes:

Hold

down

Record

(which

will

blink)

and

press

the

OSC

Parameter

Group

switch.

This

starts

tuningofaU

voices,

with

the

display

indicating

asitdid

when

power

was

switched

on.

Note:

Tuning,

whether

automaticormanual,

does

not

alter-any

control or

paramfler

settings,

butifplaying

with

other

instruments,

you

may

needtoslightly

readjust

Master

Tuneasthe

Split-Eight

warms

up.

PRESET

MODE

When

the

Preset

switch

is lit,

the

numberinthe

displayisthat of the

current

soimd

program.

Program11is

selected

automat.cally

on

»wer-up?To

select

another

program,

enter

the

desired

number

usmg

the

PROGRAM

SELECT

switches

(1-8).

When

the

Preset

switchisoff,

the

Split-Eight

isinEdit

mode.

Edit

mode

allows

youtoreprogram

the

parameters

to

suit

your

taste.

(For

more

information

on

editing,

see the

PARAMETERS

section.)

SINGLE

MODE

When

the

Split

and

Double

LEDs

are

both

off,

the

Split-Eight

is

in

LINK

MODE

When

Linkisoff,

keyboard

modeisonly

controlled

with

the

Split

and

Double

switches.

Channel

B.

SPLIT

MODE

When

Splitison,

the four

ChannelAvoices

play

from

the

right side

fthkeyboard

while

the

four

ChannelBvoices

play

from

the

left

of

the

,

the four

ChannelApy

while

the

four

ChannelBvoices

play

f

mode

you

select the

same

program

number

for

both

channels,

this

is

essentially

the

sameasSingle

mode.)

within

the

second

and

third

octaves.

^iKStfK

control

pane.

will

blink),

and

press

the

key

whichistobethe

lowest

keyonthe

right

side.

CM608A

CM60SA

J

Sequential Split-Eight Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual