Drawmer SP2120 Handleiding

Drawmer Niet gecategoriseerd SP2120

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DRAWMER
SP2120
Speaker Protector
CONTENTS
Warranty
Safety Consideration
Chapter 1 - Introduction
Introduction
Installation
Audio Connections
Installation and Connection Guide - Stereo Pair
Installation and Connection Guide - Multiple Speakers
Chapter 2 - Control Description
Front Panel Controls
The Setup Procedure
Chapter 3 - General Information
If a fault develops
Contacting Drawmer
Specification
Block Diagram
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2
Drawmer Electronics Ltd., warrants the Drawmer SP2120
Speaker Protector to conform substantially to the specifications
of this manual for a period of one year from the original date of
purchase when used in accordance with the specifications
detailed in this manual. In the case of a valid warranty claim,
your sole and exclusive remedy and Drawmer’s entire liability
under any theory of liability will be to, at Drawmer’s discretion,
repair or replace the product without charge, or, if not possible,
to refund the purchase price to you. This warranty is not
transferable. It applies only to the original purchaser of the
product.
For warranty service please call your local Drawmer dealer.
Alternatively call Drawmer Electronics Ltd. at +44 (0)1709
527574. Then ship the defective product, with transportation
and insurance charges pre-paid, to Drawmer Electronics Ltd.,
Coleman Street, Parkgate, Rotherham, S62 6EL UK. Write the
RA number in large letters in a prominent position on the
shipping box. Enclose your name, address, telephone number,
copy of the original sales invoice and a detailed description of
the problem. Drawmer will not accept responsibility for loss or
damage during transit.
This warranty is void if the product has been damaged by
misuse, modification or unauthorised repair.
THIS WARRANTY IS IN LIEU OF ALL WARRANTIES,
WHETHER ORAL OR WRITTEN, EXPRESSED, IMPLIED OR
STATUTORY. DRAWMER MAKES NO OTHER WARRANTY
EITHER EXPRESS OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
OR NON-INFRINGEMENT. PURCHASER’S SOLE AND
EXCLUSIVE REMEDY UNDER THIS WARRANTY SHALL BE
REPAIR OR REPLACEMENT AS SPECIFIED HEREIN.
IN NO EVENT WILL DRAWMER ELECTRONICS LTD. BE
LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL
OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY
DEFECT IN THE PRODUCT, INCLUDING LOST PROFITS,
DAMAGE TO PROPERTY, AND, TO THE EXTENT PERMITTED
BY LAW, DAMAGE FOR PERSONAL INJURY, EVEN IF
DRAWMER HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
Some states and specific countries do not allow the exclusion
of implied warranties or limitations on how long an implied
warranty may last, so the above limitations may not apply to
you. This warranty gives you specific legal rights. You may
have additional rights that vary from state to state, and country
to country.
In the interests of product development, Drawmer reserve the right to modify or
improve specifications of this product at any time, without prior notice.
ONE YEAR LIMITED WARRANTY
COPYRIGHT
This manual is copyrighted 82003 by Drawmer Electronics Ltd. With all rights reserved. Under copyright
laws, no part of this publication may be reproduced, transmitted, stored in a retrieval system or translated
into any language in any form by any means, mechanical, optical, electronic, recording, or otherwise, with-
out the written permission of Drawmer Electronics Ltd.
DRAWMER
SP2120-1
SPEAKER PROTECTOR
SAFETY CONSIDERATIONS
CAUTION - MAINS FUSE
TO REDUCE THE RISK OF FIRE
REPLACE THE MAINS FUSE ONLY WITH
A FUSE THAT CONFORMS TO IEC127-2.
250 VOLT WORKING, TIME DELAY TYPE
AND BODY SIZE OF 20mm x 5mm.
THE MAINS INPUT FUSE MUST
BE RATED AT T200mA.
CAUTION - MAINS CABLE
DO NOT ATTEMPT TO CHANGE
OR TAMPER WITH THE
SUPPLIED MAINS CABLE.
CAUTION - SERVICING
DO NOT PERFORM ANY SERVICING.
REFER ALL SERVICING TO QUALIFIED
SERVICE PERSONNEL.
WARNING
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE.
3
DRAWMER DMS-1
SP2SP2
SP2SP2
SP211
11
12020
2020
20
SPEAKER PROTECTOR
The Drawmer SP2120 Speaker Protector offers both strict
level control and tremendous peace of mind to the con-
tractor, installer and venue in the knowledge that, as its
name suggests, the 1U, two channel processor eliminates
the possibility of ’unauthorised’ excessive sound pressure
levels on speaker systems (as caused by spikes and pops
in the system, or by over-enthusiast dj’s/engineers) which
CHAPTER 1
INTRODUCTION
could result in damage to both chassis drivers and ampli-
fier electronics. In addition only the maintenance engi-
neer and the venue manager hold a key. The unit also
gives a wide variety of venues, such as clubs, theatres,
pubs, schools, universities etc. the opportunity to comply
with the local legislation regarding noise levels.
The key features are as follows:
• Key Holder access only
• Takes only minutes to install
• Dual 16 segment Left/Right bargraphs for ’at a glance’ level metering
• ’Protection’ processing 16 segment bargraph display
• No sound quality loss even during heavy protection processing
• Once installed and calibrated completely eliminates the possibility of ’unauthorised’ volume levels
• Eliminates sound system abuse and the resulting cost of chassis speaker re-cones, HF diaphragm
replacements and amplifier repairs.
• Reduces ’call-out’ costs of sound system service/repair engineers
• Reduces sound system ’down time’ and the consequential loss of venue income
• Isolation transformer output option.
The SP2120 front panel features an integral security lock
to ensure that adjustments to maximum volume levels are
implemented by key holders only. In ’unlocked’ mode two
front panel pre-sets are exposed and available for adjust-
ment by the installer. The first calibrates the 16 segment
Left/Right bargraphs to the incoming audio and dictates
the point at which ’protection’ processing commences.
The second sets the absolute volume level to which the
sound system is allowed to perform. If the SP2120 re-
ceives increased signal levels, the transparent ’protection’
circuitry is activated which maintains the specified sys-
tem volume level without degradation in sound quality.
The SP2120 greatly benefits from Drawmer’s 25 years
experience in designing industry standard dynamic
processing devices. Its signal path combines a mixture of
’multiple time constant’ circuitry and automatic gain con-
trol (AGC) which allow small overloads to sound louder –
even though they’re not.
Its concept and development was encouraged by Drawmer
distributors and installers dissatisfied with other protec-
tion systems currently available. These often take the form
of a crude switch, either turning off the power or discon-
necting the speakers, both of which are ’disruptive’ in any
event.

Product specificaties

Merk: Drawmer
Categorie: Niet gecategoriseerd
Model: SP2120

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