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QUICK START GUIDE: 528e Voice Processor
Safety
G The lightning flash with arrowhead
symbol within an equilateral triangle is
intended to alert the user of the presence
of uninsulated “dangerous voltage”
within the product’s enclosure that may
be of sufficient magnitude to constitute
a risk of electric shock to persons. The
exclamation point within an equilateral
triangle is intended to alert the user of
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the product (i.e.
this Quick Start Guide).
G CAUTION: To prevent electric shock,
do not use the polarized plug supplied
with the device with any extension cord,
receptacle, or other outlet unless the
prongs can be fully inserted.
G Power Source: This Symetrix hardware
uses a switchable power supply that is
preset for 117 VAC or 230 VAC nominal
operation. Ensure that your AC mains
voltage matches the voltage marked on
the rear of the hardware. Use only the
power cord and connector specified for
the product and your operating locale.
A protective ground connection, by way
of the grounding conductor in the power
cord, is essential for safe operation. The
appliance inlet and coupler shall remain
readily operable once the apparatus has
been installed.
G Lithium Battery Caution: Observe the
correct polarity when changing the lithium
battery. There is a danger of explosion if
battery is incorrectly replaced. Replace
only with the same or equivalent type.
Dispose of used batteries according to
local disposal requirements.
G User Serviceable Parts: There are no
user serviceable parts inside this Symetrix
product. In case of failure, customers
inside the U.S. should refer all servicing to
the Symetrix factory. Customers outside
the U.S. should refer all servicing to an
authorized Symetrix distributor. Distributor
contact information is available online at:
http://www.symetrix.co.
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Important Safety
Instructions
! Read these instructions.
@ Keep these instructions.
# Heed all warnings.
$ Follow all instructions.
% Do not use this apparatus near water.
This apparatus shall not be exposed to
dripping or splashing and no objects
filled with liquids, such as vases, shall be
placed on the apparatus.
^ Clean only with dry cloth.
& Do not block any ventilation openings.
Install only in accordance with the
manufacturer’s instructions.
* Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.
( This apparatus shall be connected to
a mains socket outlet with a protective
earthing connection. Do not defeat
the safety purpose of the polarized or
grounding-type plug. A polarized plug has
two blades with one wider than the other.
A grounding type plug has two blades
and a third grounding prong. The wide
blade or the third prong are provided for
your safety. If the provided plug does not
fit into your outlet, consult an electrician
for replacement of the obsolete outlet.
BL Protect the power cord from being
walked on or pinched particularly at
plugs, convenience receptacles, and the
point where they exit from the apparatus.
BM Only use attachments/accessories
specified by the manufacturer.
BN Use only with the cart, stand,
tripod, bracket, or table
specified by the manufacturer,
or sold with the apparatus.
When a cart is used, use
caution when moving the cart/apparatus
combination to avoid injury from tip-over.
BO Unplug this apparatus during lightning
storms or when unused for long periods
of time.
BP Refer all servicing to qualified service
personnel. Servicing is required when
the apparatus has been damaged in any
way, such as power-supply cord or plug
cord is damaged, liquid has been spilled
or objects have fallen into the apparatus,
the apparatus has been exposed to rain
or moisture, does not operate normally, or
has been dropped.
Note: This equipm ent has bee n test ed and foun d to comply with the
limits for a Clas s B digital devic e, pursuant to part 15 of th e FCC
Rules. These limi ts are desig ned to provi de reasonab le prot ection
agains t harmful i nterference in a residen tial instal lation. Thi s
equipm ent generat es, uses an d can radiate rad io frequency energy
and, i f not insta lled and us ed in accordance w ith the ins tructions,
may ca use harmful interferenc e to radio communicati ons. Howeve r,
there i s no guaran tee that in terference w ill not occ ur in a par ticular
instal lation. If this equipm ent do es cause ha rmful inter ference to
radio or televisi on reception , which can be determi ned by tur ning t he
equipm ent off and on, the use r is encour aged to try to correct the
interf erence by on e or more of the follow ing measure s:
• Reor ient or relo cate the rec eiving
ant enna.
• Incre ase the sep aration bet ween the
equ ipment and receiver.
• Conn ect the equ ipment into an ou tlet on
a c ircuit diffe rent fro m that to w hich the
rece iver is con nected.
• Cons ult the dea ler or an e xperie nced
rad io/TV techn ician for h elp.
Modifi cations not expressly a pproved by t he manufact urer could v oid
the us er’s auth ority to op erate the e quipme nt under FC C rules.
Cet ap pariel nume rique de la class e B respecte toutes les Exigences
du Reglement sur le materiel brouilleur du Canada.
What Ships in the Box
• A 528E hardware unit.
• A detachable power cord.
• This Quick Start Guide.
Getting Help
If you have questions beyond the
scope of this Quick Start Guide, please
download the complete User’s Guide
from the Symetrix website or contact
our Customer Support Group in the
following ways:
Te l: +1.425.778.7728
8:00 am to 4:30 pm
Monday through Friday,
Pacific Time
Web: http://www.symetrix.co
Email:
support@symetrix.co
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QUICK START GUIDE: 528e Voice Processor
Setup
Settings
Set the controls and switches on the front of the 528E as per the table
below.
Front Panel Control Setting
MIC / LINE As required
-15 PAD Out
MIC GAIN 12 o’clock
DE-ESS FREQUENCY 3K (12 o’clock)
DE-ESS THRESHOLD 0 (Full CW)
DE-ESS IN / OUT Out
DOWNWARD EXPANDER EXP
THRES
COMPRESSOR COMP THRES +20 (Full CW)
COMPRESSOR COMP RATIO 2 (12 o’clock)
EXP/COMP IN / OUT Out
VOICE SYMMETRY IN / OUT Out
LOW EQ FREQUENCY 160 Hz (12 o’clock)
LOW EQ BANDWIDTH 1.5 octaves (12 o’clock)
LOW EQ CUT/BOOST 0 (12 o’clock)
MID EQ FREQUENCY 2.5K (12 o’clock)
MID EQ BANDWIDTH 1.5 octaves (12 o’clock)
MID EQ CUT/BOOST 0 (12 o’clock)
HIGH EQ FREQUENCY 6.8K (12 o’clock)
HIGH EQ BANDWIDTH 1.5 octaves (12 o’clock)
HIGH EQ CUT/BOOST 0 (12 o’clock)
EQ IN / OUT Out
GAIN 0 (12 o’clock)
You can now power on the 528E and it should pass signal. The
POWER LED should be illuminated and the OUTPUT LEVEL LED
display should show some activity.We can now move on to fine tuning
your settings.
BYPASS (Full CCW)
Mic Preamp Gain
Set the MIC GAIN control so that the OUTPUT LEVEL LED display
indicates a signal between -10 and 0 VU. The CLIP LED should almost
never light. If it does, decrease the MIC GAIN control until it does not.
Any loss in gain can be made up for later in the signal chain.
De-Esser Settings
The De-Esser is used to reduce the level of objectionable sibilant
sounds (S and T sounds). Engage the De-Esser by pressing the
DE-ESS IN / OUT button IN. Set the THRESHOLD control so that the
de-esser gain reduction LED display shows about 12 dB of reduction.
Now, “tune” the FREQUENCY control for the maximum sibilance
reduction. Finally, reduce the setting of the THRESHOLD control until
you reduce the sibilance to a tolerable level without harming the quality
of the audio signal.
Downward Expander Settings
Use the Expander to reduce room noise or other low level or
background noise. Set the THRESHOLD control to allow low level
speech sounds to pass while still blocking out room sound or noise.
Compressor Settings
Use the COMP THRES control to determine the level at which the
compressor starts to work. As the sound level increases above the
set threshold, you will see the gain reduction LED display start to
work indicating the amount of gain reduction taking place. Generally
3 to 6 dB is sufficient, unless you are using a low compression ratio
(below 2:1), or you want a special effect. Pick a ratio suited to the task
at hand: low ratios and low thresholds for unobtrusive level control,
medium ratios for overall level control and consistency, high ratios
(greater than 8:1) for limiting or in-your-face sorts of sounds.
Equalizer Settings
Equalization is entirely dependent upon many factors and should
generally be used to correct or enhance the frequency content of the
signal. For example, the default settings should be close for the male
voice. For female voices, the LOW EQ range shifts up to 200 or 300 Hz
and the MID EQ range shifts up to 3-5 kHz.
If you are using a microphone that exhibits proximity effect, then you’ll
probably need to reduce (cut) the bass (LOW EQ) response somewhat.
3-6 dB should be fine, but you’ll have to compromise between a big full
sound and the overbearing low frequency content. A bit of MID EQ will
help make voices cut through and seem louder. The HIGH EQ can add
brightness and intimacy.
It will take some tuning and experimentation based on the signal
source, microphone used and personal taste.
Output Settings
For many applications, setting the output GAIN control to 0 dB works
fine. If you are adding a lot of EQ, this will tend to cause an overall level
increase. Thus, you may need to lower the output GAIN appropriately.
Likewise, if you are using a fair amount of compression, you may
need to add some gain to compensate for the gain reduction in the
compressor section. You should adjust the output GAIN control so that
it provides enough signal level to your connections downstream, yet still
prevents the CLIP LED from illuminating.
The output CLIP LED monitors both the equalizer and the output stage.
Large amounts of EQ boost and/or high signal levels can cause CLIP
indications. If this occurs, lower the signal level via the GAIN control.
It is also possible for the output stage to clip if a processor, inserted
via the OUTPUT STAGE INPUT jack, is contributing gain to the overall
signal path. In this case, either lower the gain of the inserted processor
or reduce the setting of the output GAIN control.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
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QUICK START GUIDE: 528e Voice Processor
Declaration of Conformity
Connections
Connect a Mic or Line level source to the appropriate input connector
on the rear of the 528E. Be sure to set the Mic / Line switch to the
appropriate position and be sure to turn on phantom power if using a
microphone that requires it. Next, connect the appropriate output of the
528E to your monitoring system or mixing console. Finally, connect the
528E to an AC source of the proper voltage and frequency as marked
on the rear of the unit.
Rear Panel Connection / Setting
Output Connect to input of console, tape
recorder, etc.
Line Input Connect line-level source here.
Mic Input Connect microphone here.
Phantom Power Depress if mic requires
phantom powering.
Caution: Failure to connect the 528E to the proper AC mains voltage
may cause fire and/or internal damage.
Warning: Lethal voltages are present inside the chassis.
There are no user serviceable parts inside the chassis. Refer
all service to qualified service personnel or to the factory.
If you are using a condenser microphone, refer to
“Phantom Powering Condenser Microphones” before depressing the
Phantom Power switch.
Declaration of Conformity
We, Symetrix Incorporated, 6408 216th St. SW, Mountlake
Terrace, Washington, USA, declare under our sole
responsibility that the product:
528E Voice Processor
to which this declaration relates, is in conformity with the
following standards:
IEC 60065, EN 55103-1, EN 55103-2, FCC Part 15
The technical construction file is maintained at:
Symetrix, Inc.
6408 216th St. SW
Mountlake Terrace, WA, 98043 USA
The authorized representative located within the European
Community is:
World Marketing Associates
P.O. Box 100
St. Austell, Cornwall, PL26 6YU, U.K.
Date of issue: March 15, 1999
Place of issue: Mountlake Terrace, Washington, USA
Authorized signature:
Dane Butcher, President, Symetrix Incorporated.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
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QUICK START GUIDE: 528e Voice Processor
Warranty and Service
The Symetrix Limited Warranty
Symetrix, Inc. expressly warrants that the product will be free from
defects in material and workmanship for three (3) years from the date
the product is shipped from the factory. Symetrix’s obligations under
this warranty will be limited to repairing or replacing, at Symetrix’s
option, the part or parts of the product which prove defective in
material or workmanship within three (3) years from the date the
product is shipped from the factory, provided that the Buyer gives
Symetrix prompt notice of any defect or failure and satisfactory proof
thereof. Products may be returned by Buyer only after a Return
Authorization number (RA) has been obtained from Symetrix. Buyer
will prepay all freight charges to return the product to the Symetrix
factory. Symetrix reserves the right to inspect any products which may
be the subject of any warranty claim before repair or replacement is
carried out. Symetrix may, at its option, require proof of the original
date of purchase (dated copy of original retail dealer’s invoice). Final
determination of warranty coverage lies solely with Symetrix. Products
repaired under warranty will be returned freight prepaid via commercial
carrier by Symetrix, to any location within the Continental United
States. Outside the Continental United States, products will be returned
freight collect.
The foregoing warranties are in lieu of all other warranties,
whether oral, written, express, implied or statutory. Symetrix,
Inc. expressly disclaims any IMPLIED warranties, including
fitness for a particular purpose or merchantability. Symetrix’s
warranty obligation and buyer’s remedies hereunder are SOLELY
and exclusively as stated herein.
This Symetrix product is designed and manufactured for use in
professional and studio audio systems and is not intended for
other usage. With respect to products purchased by consumers for
personal, family, or household use, Symetrix expressly disclaims
all implied warranties, including but not limited to warranties of
merchantability and fitness for a particular purpose.
This limited warranty, with all terms, conditions and disclaimers set
forth herein, shall extend to the original purchaser and anyone who
purchases the product within the specified warranty period.
Symetrix does not authorize any third party, including any dealer or
sales representative, to assume any liability or make any additional
warranties or representation regarding this product information on
behalf of Symetrix.
This limited warranty gives the buyer certain rights. You may have
additional rights provided by applicable law.
Note: Some Symetrix products contain embedded software or apps
and may also be accompanied by control software intended to be run
on a personal computer. Said software is specifically excluded from
this warranty.
Servicing Your Symetrix Product
If you have determined that your Symetrix product requires repair
services and you live outside of the United States please contact your
local Symetrix dealer or distributor for instructions on how to obtain
service. If you reside in the U.S. then proceed as follows:
Return Authorization
At the Symetrix factory, Symetrix will perform in-warranty or out-ofwarranty service on any product it has manufactured for a period of
three (3) years from date of discontinued manufacture.
Before sending anything to Symetrix, please contact our Customer
Service Department for a Return Authorization (RA) number. The
telephone number is +1.425.778.7728. Additionally, support is available
via the web site: http://support.symetrix.co.
In-warranty Repairs
To g et y ou r Sy me tr ix p ro du ct r ep aire d un de r th e te rm s of t he w ar ra nt y:
1. Call us for an RA number (have the serial number, shipping and
contact information and description of the problem ready).
2. Pack the device in its original packaging materials.
3. Include your name, address, daytime telephone number, and a brief
statement of the problem.
4. Write the RA number on the outside of the box.
5. Ship the device to Symetrix, freight prepaid. We do not accept freight
collect shipments.
Just do these five things, and repairs made in-warranty will cost you
only one way freight charges. We’ll pay the return freight.
If you don’t have the factory packaging materials, we recommend using
an oversize box. Wrap the device in a plastic bag, surround it with
bubble-wrap, and place it in the box surrounded by Styrofoam peanuts.
Be sure there is enough clearance in the box to protect the rack ears.
We won’t return the device in anything but Symetrix packaging for
which we will have to charge you. If the problem is due to operator
misuse or error, you will have to pay for both parts and labor. In any
event, if there are charges for the repair, you will pay for the return
freight. Payment for all charges must be pre-arranged (prepaid, Visa or
Mastercard).
Out-of-warranty Repairs
If the warranty period has passed, you’ll be billed for all necessary
parts, labor, packaging materials, and freight charges. Please
remember, you must call for an RA number before sending the device
to Symetrix.
Limitation of Liability
The total liability of Symetrix on any claim, whether in contract,
tort (including negligence) or otherwise arising out of, connected
with, or resulting from the manufacture, sale, delivery, resale, repair,
replacement or use of any product will not exceed the price allocatable
to the product or any part thereof which gives rise to the claim. In
no event will Symetrix be liable for any incidental or consequential
damages including but not limited to damage for loss of revenue, cost
of capital, claims of customers for service interruptions or failure to
supply, and costs and expenses incurred in connection with labor,
overhead, transportation, installation or removal of products, substitute
facilities or supply houses.
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co
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