D&R DE-ESSER User manual

DE-ESSERDE-ESSER
USER
MANUAL
Manual page 1

Geachte klant,
Wij danken u hartelijk voor uw keuze en het vertrouwen dat u in ons produkt stelt.
U deed een goede keus, dit produkt is ontworpen door en voor professionele gebruikers.
Er is gebruik gemaakt van onze enorme "know how" in mengtafel en signaal processor technieken en dit
gekombineerd met hoogwaardige komponenten geeft u de zekerheid van een lange gebruiksduur.
Bovenstaande eigenschappen resulteren in een zeer betrouwbaar en bedrijfszeker
eindprodukt.
Deze gebruiksaanwijzing helpt u in het optimaal benutten van alle mogelijkheden die dit
produkt in zich heeft.
Wij excuseren ons voor het feit dat deze gebruiksaanwijzing uitsluitend in het engels verkrijgbaar is.
Dit is een gevolg van het feit dat 99% van onze produkten geexporteerd worden en het engels de algemeen
aanvaarde internationale voertaal is.
Mocht u nog vragen hebben dan kunt u zich altijd tot onze dealers wenden.
Dear client,
Thank you for choosing this product.
This product is designed by specialists in the field of professional audio and is intended to be used as
a professional tool.
We are confident that you will be using this product for many years to come, and wish you much
success.
We always value suggestions from our clients, and we would therefore be grateful if you could
complete and return the questionnaire included at the back of this manual, once you have become
familiar with this product. We will certainly learn from your comments, and very much appreciate
your time doing this.
With kind regards, D&R ELECTRONICA WEESP B.V.
Rijnkade 15B
1382 GS WEESP-HOLLAND
The Netherlands
Phone: [phone]
Fax: [phone]
Duco de Rijk Website: http://www.d-r.nl
President E-mail: [email protected]
Manual page 2

USER MANUAL D&R DE-ESSER
Table of Contents
1. System description.
2. Voltage selection.
3. Installation.
A. Input connections
B. Output connections
C. Stereo-link connections
4. System operation.
A. "On" switch
B. "Pass" switch
C. "Tune" control
D. "Monitor" switch
E. "Threshold" control
5. General use of your D & R De-esser.
6. Technical specifications.
Manual page 3

1. System description
The D & R de-esser was designed to "deal-with" and in most cases eliminate high sibilance energy normally
associated with the human voice. With the latest in technology available, the D & R Engineering staff has
developed a product that solves the problem of high dynamics without risking overload. The heart of the
de-esser is a new V.C.A. (Voltage Controlled Attenuator) which is arranged in a subtraction principle to
achieve lower distortion.
As you become more familiar with the switches and controls of your de-esser, you will soon realize that this
fine piece of craftmanship will become one of the most valuable tools in your system.
2. Voltage selection
Before plugging your D & R de-esser into the electrical supply, carefully check the position of the voltage
selector on the rear of the unit. The voltage should be the same as your local electrical outlets.
3. Installation
A-Input connections
Balanced using a 1/4 inch stereo phone plug:
tip = in phase (high)
ring = out of phase (low)
sleeve = shield (ground/earth)
Unbalanced using a 1/4 inch mono phone plug:
tip = in phase (high)
sleeve = shield (ground/earth)
Attention: If you use a 1/4 inch stereo phone plug in an unbalanced connection and
experience a signal loss, the ring should be connected to ground or earth.
B-Output connections
Unbalanced using a 1/4 inch mono phone plug:
tip = in phase (high)
sleeve = shield (ground/earth)
Manual page 4

C.Stereo-link connections
Although the D & R de-esser is a single channel unit, you may connect two units to de-ess a stereo signal. To
do this; plug a mono 1/4 inch jack cord into the link jacks and press "in" the link switches on the front panels of
each unit.
4. System description
A."On" switch
This switch applies electricity to the internal power supply which activates the electronic circuitry.
A green LED indicates the "on" mode. If this switch is off (out of position, green LED off) the signal will bypass
the unit.
B."Pass" switch
The D & R de-esser has a band filter which can be switched between two bandwidths and determines the
amount of limiting of the selected frequencies. The sharp filter limits the sibilances only. While the broad filter
limits a wider range of frequencies and is easier to tune. For the sharp filter, the switch would be out and for
the broad filter the switch would need to be pressed in.
C."Tune" control
This control determines the center frequency that will be limited. The center frequency is variable from lkHz to
15kHz.
D."Monitor" switch
This switch allows you to listen to the output of the filter section making it easy to select the correct frequency
and the optimum bandwidth. A red LED lights when the monitor switch is activated.
E."Threshold" control
This control determines the level at which the limiting takes action. The LED array indicates the amount of
limiting in dB's.
5. Using your D & R de-esser
We recommend you patch the de-esser into a pre-fade patch point or insert on your console or patchbay,
however, before patching this or any other signal processing equipment, adjust your levels (before and after)
the insert/patch point correctly. This practice will allow an easy setup of any signal processing equipment.
Remember, the de-esser should be connected in series with the signal) source. Now, activate the monitor
switch and tune to the correct frequency while the "Pass" switch is in the broad position.
Manual page 5