Lexicon ALEX - REV 2 User manual

User Guide
DIGITAL
PROCESSOR
EFFECTS

Unpacking and Inspection
After unpacking the unit, save all packing materials in case you ever need to re-ship. Thoroughly inspect the unit and packing materials for signs of damage.
Report any shipment damage to the carrier at once; report equipment malfunction to your dealer.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de la class B prescrites dans le Règlement sur
le brouillage radioélectrique édicté par le ministère des Communications du Canada.
This equipment generates and uses radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer's instructions, may cause
interference to radio and television reception. It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in
Subpart J of Part 15 of FCC Rules, which are designated to provide reasonable protection against such interference in a residential installation. However, there is no guarantee
thatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipment
OFF and ON, the user is encouraged to try to correct the interference by one or more of the following measures: reorient the receiving antenna; relocate the computer with respect
to the receiver; move the computer away from the receiver; plug the computer into a different outlet so that the computer and receiver are on different branch circuits. If necessary,
the user should consult the dealer or an experienced radio/television technician for additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful: "How to identify and Resolve Radio/TV Interference Problems." This booklet is available from the U.S. Government Printing Office,
Washington, DC 20402, Stock No. 004-000-00345-4.
Notice
Lexicon Part 070-09526 Rev 2
Copyright 1994, 1995 Lexicon Inc.
All Rights Reserved.
Printed in the U.S.A.
Lexicon Inc.
3 Oak Park
Bedford MA 01730 USA
Telephone [phone]
Fax [phone]

Table of Contents
Introduction ............................................................................... 1
Front Panel Overview ............................................................... 2
Setting Audio Levels............................................................... 3
Rear Panel Connections........................................................... 4
Footswitch Connections ......................................................... 5
Presets and Parameters ........................................................... 6
The Presets ............................................................................ 6
About the Parameters............................................................. 7
Parameter Settings................................................................. 8
Loading an Effect .................................................................... 10
Editing an Effect...................................................................... 11
Performing an Edit Compare ................................................ 12
Storing an Effect ..................................................................... 13
Using Footswitches ................................................................ 14
Bypass.................................................................................. 14
Stepping through the Registers ............................................ 14
Clearing Registers ................................................................ 14
Skipping Registers and Creating Chains.............................. 15
Specifications.......................................................................... 16

To make sure you get the most out of
Alex, be sure to read the manual.
Introduction
1
Thank you for your purchase of Alex,
Lexicon's Digital Effects Processor.
Alex gives you world class reverberation
and effects to enhance any audio perfor-
mance.Sixteenpreseteffectsprovideawide
range of superb sounds right out of the box.
Three adjustable parameters allow you to
make subtle or dramatic changes to each
preset,andabankof16registersisavailable
for storing your own customized effects.
Footswitch control allows you to set up reg-
ister loops and chains to suit your perfor-
mance needs.
Someoftheexciting featuresofAlexare:
•16presets, each with3 adjustable param-
eters
•4096 possible effect variations
•Full-rack size with large LED display of
currently running effect
and parameter
settings
•16registerswhereyoucanstoreyourown
customized effects
•Edit compare of a preset and your modifi-
cations
•Footswitch control of bypass (input mut-
ing), register loading and register chains
•Stereo Inputs and Outputs
•Easy operation

INPUT
DECAY
DELAY
FX LVL
PARAMETER STORE (+)/CLEAR (–) VALUE REGISTER/PRESET
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
GOLD PLATE
VOCAL PLATE
BRASS PLATE
PERC PLATE
CHORUS
FLANGE
ECHO
DELAYS
GATE
INVERSE
TILED ROOM
GUITAR ROOM
CHAMBER
RECITAL HALL
STRING HALL
LARGE HALL
OUTPUTMIX
DRY WET
DIGITAL
PROCESSOR
EFFECTS
REGISTER/PRESET
Button selects preset or register mode.
LEDlightswhenregistermodeisselected,
turns off in preset mode.
Knob will select presets 1-16 or registers
1-16, depending on button setting.
OUTPUT
Controls Alex's output level. VALUE
Adjusts selected parameter.
PARAMETER
SelectsDECAY,DELAYorFXLVLfor
adjustmentwiththeVALUEknob.(Se-
lection indicated by lit LED.)
STORE (+)/CLEAR (–)
Toggles the Store and Clear functions. When "+" is displayed,
press and hold to store the current effect to displayed register.
When "–" is displayed, press and hold to clear a register to allow
effects to be skipped for a footswitch step or chain sequence.
DISPLAY
Numericdisplayofdigits1-16,anddecimalpoint.Displayeddigits
indicateIDnumberofcurrentlyrunningeffectorparametersetting
ifoneofparameterLEDs is flashing. Decimal point lights to show
an effect has been modified since it was stored.
2
INPUT
Sets the level of the incoming
signal.
MIX
Controls the proportion of processed
(wet) to unprocessed (dry) signals sent
to the outputs.
Front Panel Overview

Setting Audio Levels
1. Turn Alex INPUTand OUTPUT controls
all the way down (fully counter-clock-
wise).
2. Connect Alex inputs to an audio source,
and outputs to an amplifier or mixer.
3. Apply an input signal at a level that you
typically use.
4. While sending audio to Alex, gradually
turn up the INPUT control until the Input
Status LED* lights green. Continue to
advance INPUT until the LED lights red
on only the loudest peaks. If the LED is
continuously red, turn the INPUT control
down.
5. If Alex is using a console's sends and
returns, set the MIX control fully clock-
wise (100% wet). If you are using an
instrument amplifier, start with MIX set
halfway up.
6. Gradually increase the setting of the
OUTPUT control until the audio level
from the amplifier or mixer is approxi-
mately the same as when Alex is by-
passed.
* The Input Status LED is off when the incoming
signal is low; it lights to indicate acceptable levels
(6dB to 30dB below overload). The LED lights red
whenthesignalapproachesoverload.Acceptable
signals will trigger red flashes only on peaks.
3

POWER
Use Lexicon MSA power pack,
or 9VAC 1 amp equivalent.
FOOTSWITCH POWER OUTPUTS INPUTS
(MONO) RLR
L(MONO) 9V~, 1A,
50-60Hz
ALEX
LEXICON, INC.
WALTHAM MA 02154
MADE IN U.S.A.
P/N 021-09504
SERIAL #
TIP - BYPASS
RING - REG STEP
SLEEVE - COMMON This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received
including interference that may cause undesired operation.
INPUT
Single-ended (unbalanced) inputs accept levels as
lowas-30dBu.Inputimpedanceis50kΩinstereo,25
kΩin mono. Use the right for mono input.
FOOTSWITCH
Tip/Ring/Sleeve phone input, for momentary con-
tactfootswitches,allowsfootswitchcontrolofReg-
ister Step and Bypass functions.
OUPUT
Single-ended (unbalanced) stereo outputs provide
-2dBu nominal output level. Use the right output
connector for mono output.
4
Rear Panel Connections

A dual-function footswitch is available from
Lexicon. A set of labels to identify footswitch
functionality is included with your unit.
BYPASSSTEP
Footswitch Connections
A footswitch connected via the rear-panel
footswitchjackallowsyoutoperformregister
STEP and BYPASS functions. Two
footswitchescanbewiredtoatip-ring-sleeve
connector, or a single, mono connector can
beused.(Withasingleconnector,inserthalf-
way in for register step, all the way in for
bypass.) A stereo Y-connector allows two
identical single switches to be used.
When shipped, Alex is configured to use
push on/push off type switches. You can
change this configuration to allow the use of
momentary contact switches by performing
the following procedure:
1. PowerupAlexwhileholdinginboththeSTORE/
CLEAR and the PARAMETER buttons. (This
will put the unit into Diagnostic mode with a "d"
displayed.)
2. Press STORE/CLEAR, then turn the REGIS-
TER/PRESET knob until the display reads "0"
(push on/push off) or "1" (momentary contact).
3. PressSTORE/CLEARtoenterthechange.The
display will show "+", and then the number you
have selected.
4. Power the unit off, then on again to restore
normal operation with the selected configura-
tion.
TIP
RING
SLEEVE
Tip Sleeve
Ring
Bypass
Step
or
TIP
RING
SLEEVE
Tip Sleeve
Ring
Bypass
5

6
Inverse (7) is similar to a gated reverb,
except that the initial portion of the reverb
envelope builds up before the sharp rever-
beration cut-off.
Gate (8) has a fairly constant sound with no
decayuntilthereverberationiscutoffabruptly.
Inverse and Gate are both excellent effects
forpercussion—particularlyforsnaredrum.
Plates(9-12)mimicthesoundofmetalplates,
with high initial diffusion and a relatively
bright,coloredsound.Platesareeffectiveon
a variety of percussion instruments, as well
ason horns andvoice.They are designedto
beheardaspartofthemusic,thickeningand
fattening the source material.
Chorus (13) is a 6-voice stereo chorus with
echo. Controls are provided for echo delay
andrecirculation.Greatonguitarsandvoices.
Flange (14)is a stereoflangewith control of
resonance and the depth and speed of the
flange.
Echo (15) Digital audio's most basic effect.
Try it on everything.
Delays (16) is a 4-tap bouncing delay. The
bouncegoesbackandforthbetweenleftand
right outputs.
Each of the presets contains a unique
version of the 3 parameters; DECAY, DE-
LAY and FX LVL. The parameters of each
preset are available for front panel adjust-
mentalongtheirentirerange,allowingyouto
createhundreds of variationsof each effect.
Presets cannot be erased or overwritten
by parameter changes; the original version
willalwaysberestored.Ifyoumakechanges
toa presetand wantto savethe changes as
a custom effect, you must store your new
version in one of Alex’s 16 registers.
The Presets
Alexisloadedwith 16permanentpresets,
designed to give you the following effects:
HallandRooms(1-6)rangefromlargenatu-
ral-sounding spaces with the spread, attack
and build of a concert hall, to small rooms
with sudden attacks and the coloration char-
acteristics of tight, intimate spaces. In addi-
tion to general instrumental and vocal appli-
cations, halls are a good choice for giving
separately recorded tracks the sense of be-
longing to the same performance.
Presets and Parameters
Alex front panel operation is simple and
straightforward. Effect selection, editing,
store, and clear functions are easily accom-
plished with dedicated knobs and buttons.
This section describes all of these basic
functions, as well as using footswitches to
step through registers and register chains.

7
About the Parameters
Each of the 16 presets in Alex consists
of a unique combination of as many as 32
different parameters. These fixed parame-
ters determine the type of preset —hall,
room, plate, etc. that you will hear when you
turn the REGISTER/PRESET knob.
For each preset, several parameters
have been made available for front panel
control through the DECAY, DELAY and FX
LVL controls.
In Halls and Rooms (1-6), and in the
Plate presets (9-12), DECAY sets the nomi-
nal reverberation decay time for a predeter-
mined room size which is unique to each
preset.
In the Inverse and Gate presets (7-8 ),
DECAYchanges boththe size and the char-
acteroftheprogram,whileDELAYvariesthe
predelay before the gated effect. (Note that
changing the setting of DECAY in either of
these presets will briefly mute the effect.)
In Chorus (13), Echo (15) and Delays
(16), DECAY controls recirculation. In the
Flange preset (14), DECAY controls flange
resonance.
DELAY generally sets the amount of
predelay (the length of time between the
input of signal and the onset of reverbera-
tion).Therangeofthiscontrolvarieswiththe
type of preset.
In Chorus and Echo, DELAY controls
the echo delay. In Flange, it controls the
depth of the flange effect. In Delays, it con-
trolsthedelaytimeforthefirst of fourequally
spaced delay taps.
In each preset, FX LVL sets the level of
the effects being added to the signal.
NotethatthesettingoftheMIXcontrolis
veryimportant with several of thepresets. In
the Inverse and Gate presets, MIX allows
you to set up anything from a subtle thicken-
ingorenhancement,toasolidwallofreverb.
IntheChorusandFlangepresets,MIXshould
besethigherthan50%wettogetrichchorus
and flange effects.

8
Parameter Settings
The actual parameter values available
ateachofthe16settings of theVALUEknob
are shown on the following charts.
Parameter Settings
Presets Parameters 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 Large Hall DECAY (rm size=60M) .60 sec .70 sec .80 sec .90 sec 1.0 sec 1.2 sec 1.3 sec 1.5 sec 1.7 sec 2.1 sec 2.4 sec 2.9 sec 3.6 sec 4.9 sec 6.1 sec 8.9 sec
2 String Hall DECAY (rm size=51M) .51 sec .60 sec .68 sec .77 sec .85 sec 1.02 sec 1.11 sec 1.28 sec1.45 sec 1.79 sec 2.04 sec 2.47 sec 3.06 sec 4.17 sec 5.19 sec 7.57 sec
3 Recital Hall DECAY (rm size=45M) .45 sec .53 sec .60 sec .68 sec .75 sec .90 sec .98 sec 1.13 sec1.28 sec 1.58 sec 1.80 sec 2.18 sec 2.70 sec 3.68 sec 4.58 sec 6.68 sec
4 Chamber DECAY (rm size=38M) .38 sec .44 sec .51 sec .57 sec .63 sec .76 sec .82 sec .95 sec1.08 sec 1.33 sec 1.52 sec 1.84 sec 2.28 sec 3.10 sec 3.86 sec 5.64 sec
5 Guitar Room DECAY (rm size=25M) .25 sec .29 sec .33 sec .38 sec .42 sec .50 sec .54 sec .63 sec .71 sec .88 sec 1.00 sec 1.21 sec 1.50 sec 2.04 sec 2.54 sec 3.71 sec
6 Tiled Room DECAY (rm size=15M) .15 sec .18 sec .20 sec .23 sec .25 sec .30 sec .33 sec .38 sec .43 sec .53 sec .60 sec .73 sec .90 sec 1.23 sec 1.53 sec 2.23 sec
7 Inverse DECAY (time) 150 ms 165 ms 180 ms 196 ms 211 ms 227 ms 242 ms 258 ms 273 ms 289 ms 304 ms 320 ms 335 ms 351 ms 366 ms 382 ms
8 Gate DECAY (time) 150 ms 165 ms 180 ms 196 ms 211 ms 227 ms 242 ms 258 ms 273 ms 289 ms 304 ms 320 ms 335 ms 351 ms 366 ms 382 ms
DELAY (predelay) 0 ms 16.3 ms 32.7 ms 49.1 ms 65.5 ms 81.9 ms 98.3 ms 114 ms 131 ms 147 ms 163 ms 180 ms 196 ms 212 ms 229 ms 245 ms

9
9 Gold Plate DECAY (rm size=34M) .34 sec .40 sec .45 sec .51 sec .57 sec .68 sec .74 sec .85 sec .96 sec 1.19 sec 1.36 sec 1.64 sec 2.08 sec 2.78 sec 3.46 sec 5.04 sec
10 Vocal Plate DECAY (rm size=26M) .26 sec .30 sec .35 sec .39 sec .43 sec .52 sec .56 sec .65 sec .74 sec .91 sec 1.04 sec 1.26 sec 1.56 sec 2.12 sec 2.64 sec 3.86 sec
11 Brass Plate DECAY (rm size=23M) .23 sec .27 sec .31 sec .35 sec .38 sec .46 sec .50 sec .58 sec .65 sec .81 sec .92 sec 1.11 sec 1.38 sec 1.88 sec 1.34 sec 3.41 sec
12 Perc Plate DECAY (rm size=27M) .27 sec .32 sec .36 sec .41 sec .45 sec .54 sec .59 sec .68 sec .77 sec .95 sec 1.08 sec 1.31 sec 1.62 sec 2.21 sec 2.75 sec 4.01 sec
DELAY (predelay) 0 ms 16.3 ms 32.7 ms 49.1 ms 65.5 ms 81.9 ms 98.3 ms 114 ms 131 ms 147 ms 163 ms 180 ms 196 ms 212 ms 229 ms 245 ms
13 Chorus DECAY (recirculation) 0% 6% 12% 18% 24% 31% 37% 43% 49% 56% 62% 68% 74% 81% 87% 93%
DELAY (echo delay) 24 ms 51 ms 73 ms 89 ms 108 ms 139 ms 166 ms 208 ms 250 ms 333 ms 444 ms 555 ms 714 ms 1000 ms 1200 ms 1500 ms
14 Flange DECAY (resonance) -5% -11% -18% -24% -30% -36% -43% -49% -55% -61% -68% -74% -80% -86% -92% -99%
DELAY (flange depth) .25 ms .50 ms 1.0 ms 1.51 ms 2.01 ms 2.52 ms 3.02 ms 3.53 ms 4.00 ms 4.50 ms 5.01 ms 5.51 ms 6.02 ms 6.52 ms 7.03 ms 7.53 ms
15 Echo DECAY (recirculation) 0% 6% 12% 18% 24% 31% 37% 43% 49% 56% 62% 68% 74% 81% 87% 93%
DELAY (echo delay) 24 ms 51 ms 73 ms 89 ms 108 ms 139 ms 166 ms 208 ms 250 ms 333 ms 444 ms 555 ms 714 ms 1000 ms 1200 ms 1500 ms
16 Delays DECAY (recirculation) 0% 6% 12% 18% 24% 31% 37% 43% 49% 56% 62% 68% 74% 81% 87% 93%
DELAY (delay spacing) 1.7 ms 2.6 ms 3.9 ms 5.8 ms 8.7 ms 13.1 ms 19.7 ms 29.2 ms 44.3 ms 66.4 ms 99.6 ms 150 ms 224 ms 336 ms 412 ms 505 ms
FX LVL OFF -28 dB -26 dB -24 dB -22 dB -20 dB -18 dB -16 dB -14 dB -12 dB -10 dB -8 dB -6 dB -4 dB -2 dB 0 dB

10
REGISTER/PRESET 9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
GOLD PLATE
VOCAL PLATE
BRASS PLATE
PERC PLATE
CHORUS
FLANGE
ECHO
DELAYS
GATE
INVERSE
TILED ROOM
GUITAR ROOM
CHAMBER
RECITAL HALL
STRING HALL
LARGE HALL
LED indicates register selection.
Alex has 16 presets and 16 registers for
storing your customized effects. Pressing
the REGISTER/PRESET button ...
Loading an Effect
The REGISTER/PRESET button deter-
mineswhethertheknobwillloadregistersor
presets. The LED will light when register
mode is selected.
In either mode, turn the REGISTER/PRE-
SET knob to select and load an effect. The
displaywillupdatetoshowthenumberofthe
currently loaded effect.
When you change between register and
preset modes, you will always recall the last
preset or register loaded, in whatever state
you left it.
. ..determines whether presets
(LARGE HALL ... DELAYS),
or registers (1 ...16) will be
selected by the knob.

11
DECAY
DELAY
FX LVL
PARAMETER VALUE
Turn VALUE to adjust the selected parameter.
Thedisplaywillshowparametervalueswhilethe
knob is being turned. A decimal point in the
display indicates changes have been made
since the last store operation.
ThePARAMETER buttoncyclestheselection
of DECAY, DELAY and FX LVL. A lit LED
indicates the currently selected parameter.
Editing an Effect
TheVALUEknobisalwaysactive,andwill
adjust whichever parameter is indicated by
thedisplayLEDs.Thefirstturnof VALUEwill
display the current parameter setting. Sub-
sequent adjustments will increment or dec-
rement parameter values along their entire
range (1-16).
The decimal point on the display will light
whenaparameterisadjustedtoindicatethat
the effect has been modified since the last
storeoperation.Ifnofurtheradjustmentsare
made with VALUE, the display will revert to
showing the number of the currently running
effect. The edit indicator will remain on until
the effect is stored, or until changes are lost
by selecting another effect with the REGIS-
TER/PRESET knob.
For each preset, three parameters have
been made available for front panel control
through the DECAY, DECAY, and FX LVL
controls. Control over these parameters is
simple —press PARAMETER/LEARN to
select a parameter, then adjust it with the
VALUE knob. All parameter settings made
from the front panel can be stored with the
effect.

12
Performing an Edit Compare
If you do not perform a store operation,
changes made to effects will be lost as soon
as another effect
within the same mode
(preset or register) is selected. Changing
between preset and register modes, how-
ever, will not erase your changes. This pro-
vides an edit compare capability which al-
lowsyoutotogglebackandforthbetweenan
effect you are working on and the original
version. For example:
1. Select a preset and store a copy of it in
any register.
2. Makeanychangesyouwanttoeitherthe
preset or the register.
3. Compare your new effect to the original
version simply by pressing the REGIS-
TER/PRESET button.
4. Use the REGISTER/PRESET button to
toggle back and forth as many times as
you like between the original effect and
the new version, making changes as de-
sired.
When you are satisfied with the effect,
performastoreoperationtoanyregisteryou
want using the procedure described on the
following page.

13
Alex presets cannot be erased or over-
written by parameter changes; the original
versionwillalwaysberestoredwhenloaded.
Ifyou make changesto apreset and wantto
save the changes as a custom effect, you
must store your new versions into registers.
When first shipped, Alex has a duplicate
set of the presets loaded into the registers.
Although these are grouped into different
effect types (halls, plates, etc.) there is no
need to maintain this format. You can, for
example, overwrite a gate effect with a cho-
rus effect, or a plate with a hall.
To store the currently running effect:
1. Press STORE.
2. If you were in preset mode, the register
LED will go on, indicating that Alex has
automatically switched to register mode
—selecting whatever register is indi-
cated by the position of the REGISTER/
PRESET knob. The plus sign (+) on the
display will light to indicate that the store
function is armed.
3. ReleasingSTOREwillstorethecurrently
running effect into the register indicated
on the display, overwriting the effect pre-
viouslystoredthere.Thedisplaywillflash
brieflytoindicatethestoreoperation was
successful.
4. Store operations are executed on re-
lease of the STORE button. If you want
to store to a different register, or to a
different register bank, than the one
displayed, turn the REGISTER/PRE-
SET knob to the register number you
want
before releasing STORE.
Storing an Effect

14
Note using a footswitch to step through registers will
cause a discrepancy between the REGISTER/PRE-
SET knob setting and the display (which will show the
number of the register that is actually running.)
A dual footswitch can be connected to
Alex's rear-panel footswitch jack. Refer to
the diagram shown in
Rear panel Connec-
tions
.
Bypass
A footswitch can be used to bypass ef-
fects. When active, a "P" (byPass) appears
onthedisplay.The+and–symbols,andthe
parameter LED are turned off. In this state
everything is bypassed: effect select, regis-
ter increment, parameter select and adjust-
ment, etc.
Stepping through the Registers
You can use a footswitch to step through
the registers. The footswitch will increment
continuously up to register 16 then wrap
back to register 1 (or the first uncleared
register). If you are in preset mode, the first
click of the switch will automatically switch
you into register mode, loading whatever
register is indicated by the position of the
REGISTER/PRESET knob; subsequent
clicks will increment from that point on.
Clearing Registers
Aexhasa clear function whichallowsthe
useof footswitches tolinkeffects in avariety
of useful ways. Clearing a register does not
erasethecontentsofa register pair. Itclears
a space in the register sequence so that the
register is skipped in any effect sequence
you create.
To clear a register...
1. Briefly press STORE/CLEAR until a mi-
nus sign (-) is displayed.
2. Press and hold STORE/CLEAR. If you
wereinpresetmode,theregisterLEDwill
go on, indicating that Alex has automati-
callyswitchedtoregistermode—select-
ing whatever register is indicated by the
position of the REGISTER/PRESET
knob. The "–" symbol in the display will
flash, indicating that the CLEAR function
is armed.
3. Releasing STORE/CLEAR will clear the
displayed register. The display will flash
briefly to indicate the clear was success-
ful. (TheID number ofanycleared regis-
ter flashes when selected with the REG-
ISTER/PRESET knob.)
To restore a cleared register, simply re-
peat the clear operation with the "+" dis-
played.
Using Footswitches

Skipping Registers and
Creating Chains
Alex’s clear function allows you to use a
footswitch to
skip effects you do not want in
a sequence, or to create register
chains .
Skipping allows you to create a specific
sequence of effects. If, for example, you
wanttouseaseriesof8effects,simply clear
the 8 unwanted registers and turn the REG-
ISTER/PRESET knob to 1. Now, the
footswitch will increment through the regis-
ters,passingoverthecleared registers with-
out requiring you to step through them.
Turning the REGISTER/PRESET knob to
any position other than 1, will set up register
chains which use cleared registers as loop
points.
Skip and chain functions are illustrated to
the left.
Registers 4, 9, 10 and 14 have been cleared...
1234567891011 12 13 14 15 16
With the REGISTER/PRESET knob set to Register 1, the footswitch will
step through the remaining registers, then loop back to Register 1.
12356781112131516
Turning the REGISTER/PRESET knob to any position other than 1,
will set up register chains which use cleared registers as loop points.
The combination of cleared registers shown above would create these
four chains ...
123 5678 151611 12 13
If the REGISTER/PRESET knob is set to a cleared register, the footswitch will
skip to the first register in the next chain, then step through that chain.
15
With the REGISTER/PRESET knob
set to Register 7, the footswitch will
step through this sequence ...
7856
(To use a chain containing Register 1, you must set the
REGISTER/PRESET knob to another register in the chain.)
If the REGISTER/PRESET knob is set to a register within a chain, the
footswitch will cycle through the chain until the next cleared register,
then loop back to the first register in the chain.

16
Specifications
Frequency response
Wet 20Hz-15kHz, +1dB to -3dB
Dry 20Hz-20kHz, +0.5dB
THD+N
Wet <0.05% @ 1kHz
Dry <0.025% @ 1kHz
Dynamic Range
85dB, typical, 20Hz-20kHz bandwidth
Conversion
16 bit linear PCM encoding; 31.25kHz sampling
rate
Power Requirements
9VAC, 1A wall transformer provided
Dimensions
19"W x 1.75"H x 4"D (483 x 45 x 102mm)
Weight
2 lbs 11 oz (1.22 kg)
Environment
Operating
Temperature 32°to 104°F (0°to 40°C)
Storage -20°to 170°F (-30°to 75°C)
Relative
Humidity 95% non-condensing
Audio Inputs (2)
Level -30dBu minimum
Impedance stereo/50 kΩunbalanced
mono/25 kΩunbalanced
Audio Outputs (2)
Level -2dBu nominal
+8dBu maximum
Impedance 600Ωunbalanced
Muting reduces transients during power
on/off
Footswitch Connectors
T/R/S phone jack for bypass and register step
Specifications subject to change without notice.

Part No. 070-09526 Rev 2
Lexicon, Inc.
3 Oak Park
Bedford MA 01730 USA
Telephone: [phone]
Fax: [phone]