Related Manuals for Klark Teknik dn330
Summary of Contents for Klark Teknik dn330
- Page 1 Operators & Service Manual DN330 EVI PRO AUDIO GROUP Klark Teknik Building, Walter Nash Road, Kidderminster, Worcestershire DY11 7HJ England Tel: (01562)741515 Fax: (01562)745371...
- Page 3 89/336/EEC Electromagnetic Compatibility Directive, amended by 92/31/EEC & 93/68/EEC Equipment Type Product Name Preset Equaliser DN330 The Basis on which Conformity is being Declared The products named above comply with the requirements of the above EU directives by meeting the following standards:...
- Page 4 Attention! Cables: This product should only be used with high quality, screened twisted pair audio cables, terminated with metal bodied 3-pin XLR connectors. The cable should be connected to pin 1. Any other cable type or configuration for the audio signals may result in degraded performance due to electromagnetic interference.
- Page 5 CONTENTS INTRODUCTION THE DN330 PRESET EQUALISER INSTALLATION INSTRUMENT FAMILIARISATION AUDIO CONNECTIONS SPECIFICATIONS SERVICE INFORMATION SCHEMATICS...
- Page 6 THANK YOU FOR USING THIS KLARK TEKNIK PRODUCT To obtain maximum performance from this precision electronic product, please study these instructions carefully. Installing and operating the equaliser is not complicated, but the flexibility provided by its operating features merits familiarisation with its controls and connections. This unit has been prepared to comply with the power supply requirements that exist in your location.
- Page 7 After you have unpacked the unit Save all the packing materials - they will prove valuable should it become necessary to transport of ship this product. Please inspect this unit carefully for any signs of damage incurred during transportation. It has undergone stringent quality control inspection and tests prior to packing and left the factory in perfect operating and mechanical condition.
- Page 8 Introduction The equaliser is a vital component in any audio system. The entire signal passes through it and so any limitations imposed by the equaliser will compromise the performance of the whole system. For example, an indifferently designed equaliser may introduce severe phase distortion, noise and other anomolies related to centre-frequency accuracy, filter shape and attenuation accuracy which may manifest themselves as an overall deterioration in the perceived sound quality of the system.
- Page 9 DN330 Equaliser The Klark Teknik DN330 is a single channel, 30 band equaliser offering 12dB of cut or boost in 1/3 octave steps between the frequencies of 20Hz and 20kHz. Filter Shape and Combining Action At the heart of any equaliser is the bank of filters used to shape the signal response, and Klark Teknik utilise a proprietary filter circuit which replaces which replaces the conventional inductor based circuit, at the same time, offering several performance advantages.
- Page 10 Reliability Control Even with the advanced technology incorporated in this product, each instrument is given the full backing of Klark Teknik’s “reliability control” which proves each product against a specification consistent with the highest professional standards. Only top quality components are used, and every unit is bench tested and aligned before a burn-in period and final performance test.
- Page 11 The DN330 can be made the central ground reference as detailed on page 12, this modification should only be carried out by qualified service technician.
- Page 12 Audio Connections The inputs and outputs are fully balanced on XLR connectors and are wired conventionally with pin 1 as ground. Because the system is fully floating, either pin 2 or pin 3 can be designated as hot (phase ) so long as the same protocol is adhered to for both inputs and outputs. To comply with EMC regulations filtering is incorporated into this unit.
- Page 13 Front Panel Functions Other than the power on and clip indicators no user controls or indicators are available with all set- up controls secured behind the central removable panel. Remove the three pozidrive screws to gain access to these controls. Input level control allowing system gain of up to +12dB in the fully clockwise position and attenuation of up to -6dB in the fully anticlockwise position.
- Page 14 Rear Panel Functions Mains is supplied via an IEC standard 3 pin connector. A compatible power cord is supplied with the unit. The mains fuse is located in the draw that is part of the mains input connector. A spare fuse is also stored here.
- Page 15 Outputs The standard outputs are electronically balanced and is capable of driving +19dBu into 600 ohms and +20dBu into 2K. It is recommended that the equaliser feeds into a balanced input, however to feed an unbalanced input it is necessary to connect the antiphase output to ground. This is best carried out on the XLR output connector of the equaliser.
- Page 16 Technical Specifications Input Type Electronically balanced Impedance Balanced 20Kohms Unbalanced 10Kohms Max input level 20dBm Output Type Electronically balanced Source impedance 50 ohms Min.load impedance 600 ohms Max.level 20dBu with 2Kohm load Performance Frequency response 20Hz to 20kHz, EQ flat +/-0.5dB THD+N @ +4dB <0.01% @ 1kHz...
- Page 17 Please ensure that the rear panel voltage label is removed and replaced with one stating the new voltage setting. Making the DN330 the system ground reference Under certain unusual operating environments it may be necessary to use the equaliser as the main ground reference and tie other signal grounds to it.
- Page 18 The information is given in good faith and is not intended as a definitive method of achieving the desired results. Problem: “I only have a 250-300mA 24V power supply. How can I run the DN330 from it?” Answer: With the supply OFF, connect a capacitor of approximately 10000 mfd and a working voltage of at least 25V across the output terminals.
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