KlarkTeknik-DN360 equal电路图.pdf

《KlarkTeknik-DN360 equal电路图.pdf》由会员分享，可在线阅读，更多相关《KlarkTeknik-DN360 equal电路图.pdf（26页珍藏版）》请在收音机爱好者资料库上搜索。

1、Klark Teknik Group, Klark Teknik Building, Walter Nash Road, Kidderminster. Worcestershire. DY11 7HJ. England. Tel:+44 1562 741515 Fax:+44 1562 745371 Email: Website: OPERATORS MANUAL DN360 RadioFans.CN 收音机爱 好者资料库 DECLARATION OF CONFORMITY We, of,Klark Teknik Building, Walter Nash Road, Kidderminste

2、r, Worcestershire, DY11 7HJ Declare that a sample of the following product:- to which this declaration refers, is in conformity with the following directives and/or standards:- Signed:. Name: F. D. Merrey Jnr Authority: Managing Director, Klark Teknik Group (UK) Plc Attention! Where applicable, the

3、attention of the specifier, purchaser, installer or user is drawn to special limitations of use which must be observed when these products are taken into service to maintain compliance with the above directives. Details of these special measures and limitations to use are available on request and ar

4、e available in product manuals. Klark Teknik Group (UK) Plc Walter Nash Road, Kidderminster, Worcestershire. DY117HJ. England Tel:(44)(0)1562741515. Fax: (44)(0)1562745371 CompanyRegistration No:2414018 ? ? SIGNAL PROCESSING BY DEFINITIONBETTERBYDESIGNDESIGNEDFOR APUREPERFORMANCE Product Type Number

5、Product DescriptionNominal Voltage (s)CurrentFreq DN360Graphic Equaliser115VAC60mA50/60Hz 230VAC120mA Directive(s)Test Standard(s) UL 813 CSA22.2 No1 M90 Low voltage Directive 73/23/EECEN 60065 EMC 89/336/EEC amended by 92/31/EEC & 93/68/EECEN 50081-1 : 1992 EMC 89/336/EEC amended by 92/31/EEC & 93/

6、68/EECEN 55022 Class B EMC 89/336/EEC amended by 92/31/EEC & 93/68/EECEN 50082-1 : 1994 EMC 89/336/EEC amended by 92/31/EEC & 93/68/EECENV 50140/ 8-93 EMC 89/336/EEC amended by 92/31/EEC & 93/68/EECENV 50140/ 2-95 EMC 89/336/EEC amended by 92/31/EEC & 93/68/EECEN 5014 1 : 1993 EMC 89/336/EEC amended

7、 by 92/31/EEC & 93/68/EECEN 60801-2 : 1993 IEC 801-4/88 Date: 27thAugust, 1999 ASubsidiary of Telex communications, Inc. RadioFans.CN 收音机爱 好者资料库 THANK YOU FOR USINGTHIS KLARK TEKNIK PRODUCT Precautions Voltage Selection and Power Connection Safety Warning Attention! Cables: Electric Fields: To obtai

8、n maximum performance from this precision electronic product, please study these instructions carefully. Installation 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 pr

9、epared to comply with the power supply requirements that exist in your location. Before connecting the unit to the mains power, ensure that the operating voltage is correct for your local supply. It is important that you observe the following instructions if another voltage setting is required. Do n

10、ot install this unit in a location subjected to excessive heat, dust or mechanical vibrations. Connection is made by means of an IEC standard power socket. The rear panel voltage label, indicates the voltage required for satisfactory operation of the unit. Before connecting this unit to the mains su

11、pply, ensure the fuse fitted is the correct type and rating is as indicated on the rear panel, adjacent to the fuse holder. *Mains voltage change should be carried out by a qualified service technician only. This unit is fitted with 3-pin power socket: For safety reasons the earth lead should not be

12、 disconnected. Signal 0V is referenced internally to chassis via a resistor capacitor network which provides earth loop immunity. To prevent shock or fire hazard, do not expose the unit to rain or moisture. To avoid electrical shock do not remove covers. Refer servicing to qualified personnel only.

13、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 inte

14、rference. Should this product be used in an electromagnetic field that is amplitude modulated by an audio frequency signal (20Hz to 20kHz), the signal to noise ratio may be degraded. Degradation of up to 60dB at a frequency corresponding to the modulation signal may be experienced under extreme cond

15、itions (3V/m, 90% modulation). RadioFans.CN 收音机爱 好者资料库 AFTER YOU HAVE UNPACKED THE UNIT Save all the packing materials - they will prove valuable should it become necessary to transport or ship this product. Please inspect this unit carefully for any signs of damage incurred during transportation. I

16、t has undergone stringent quality control inspection and tests prior to packing and left the factory in perfect condition. If, however, the unit shows any signs of damage, notify the transportation company without delay. Only you, the consignee, may institute a claim against the carrier for damage d

17、uring transportation. If necessary, contact your supplier or as a last resort, your Klark Teknik importing agent, who will fully co-operate under such circumstances. ? This Side Up Introduction The graphic equaliser is a vital component in any audio system. The entire signal passes through it and so

18、 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 anomalies related to centre frequency accuracy, filter shape and attenuation accuracy which may manif

19、est themselves as an overall deterioration in the perceived sound quality of the system. Clearly, this is an unacceptable state of affairs, but fortunately your choice to utilise a Klark Teknik graphic equaliser will eliminate these problems, offering you unprecedented product performance coupled wi

20、th the highest filter calibration and reliability standards in the industry. For many years Klark Teknik has been at the forefront of equaliser design, and have carried our detailed research into optimum filter response characteristics, including their sonic performance. The Series 300 range of equa

21、lisers is a direct result of this research. It should be noted that graphic equalisation cannot always overcome all frequency response related problems. There are applications where the ability to cut and boost the response at a particular frequency, or over a certain bandwidth other than the equali

22、ser specified one, is required to overcome exceptionally difficult response anomalies or narrow band feedback problems. When such an instance is encountered, it may be more appropriate to use the greater range of control provided by a parametic type equaliser, where the centre frequency, bandwidth a

23、nd amplitude are all controllable. Reliability is also of paramount importance which is why our filters are designed around a technique commonly used in computer manufacturing - thick film engineering. This technique has enabled Klark Teknik to build these new filter circuits into self-contained pac

24、kages which are referred to as. These micro-electronic circuits are so consistent and reliable that we are able to warrant those solid state devices for 5 years. This type of fit and forget technology, already proven all over the world, provides users with products that perform brilliantly year afte

25、r year. When using an equaliser remember that the need to use large amounts of booth or that within the equalisation curve indicates that there may be something fundamentally wrong with the sound system or room acoustics, which should be further investigated and corrected before final equalisation i

26、s applied. MELT 1 DN360 Graphic Equaliser The Klark Teknik DN360 is a dual channel, 30 band equaliser offering 12dB of cut or boost in 1/3 octave steps between the frequencies of 25Hz and 20 kHz. Filter Shape and CombiningAction At the heart of any graphic equaliser is the bank of filters used to sh

27、ape the signal response, and Klark Teknik utilise a proprietary filter circuit which replaces the conventional inductor based circuit, at the same time, offering several performance advantages. Inductor based circuits are heavy, expensive to produce and suffer from low frequency distortion and induc

28、ed hum. Klark Tekniks proprietary filters on the contrary suffer none of these problems, yet offer unequaled phase response and control accuracy with the additional benefits of low noise and minimal ripple. 203150801252003155008002K5K8K20K1.25K3.15K12.5K 2540631001602504006301K4K10K16K1.6K2.5K6.3K I

29、SO CENTRE FREQUENCIES (in Hz) 1/3 Octave Band Equaliser Filter Curves Single Filter Response Curves (1/3 Octave) 2 5dB The nature, shape and way in which individual equaliser filters combine, has a profound effect on the control provided by the equaliser and on the resulting quality of sound. The ma

30、jority of applications within the sound reinforcement, broadcast and recording fields, require a smooth and continuous equalisation response curve in order to correctly contour the overall response characteristics of a sound system, loudspeaker, recording effect or audio channel. To achieve this, th

31、e individual filters must be capable of combining smoothly together to result in a continuous response curve, free from shape discontinuities in orders to avoid unwanted audible peaks or anomalies in the final sound. Other Features Reliability Control Options Other features include an overload LED p

32、er channel, which warns of impending overload at any point in the equaliser. Asignal-ground lift switch and an optional security cover to prevent unauthorised personnel from tampering with the control settings. This product is built to the same high electrical and mechanical standards as all Klark T

33、eknik equipment and is both robust and stylish. It occupies a standard three units of rack space and has transformer balanced inputs and outputs. Even the advanced technology incorporated in this product, each instrument is given the full backing of Klark Tekniks which proves each product against a

34、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. Aluminium security coverPart number: SCA360 Perspex security coverPart number: SCP360 reliability con

35、trol In order to offer operational flexibility a variable fader resolution has been incorporated i.e. 6 or 12 dB cut or boost. This function (scale) is combined with the bypass switch, which silently removes the graphic equaliser section from the signal path.Asubsonic 18dB/octave roll off filter (-3

36、dB 3Hz) can be switched in or out from each of the channels. Set of Response Curves for 1/3 Octave Equaliser Filter 3 5dB Front Panel Functions The power switch is a two pole type, isolating both the live and neutral conductors. When the power is on, a red status LED lights. The input level control

37、allows the system gain to be up to+6dB when in its fully clockwise position, and offers full attenuation in its anti-clockwise position. The scale switch bypass selects maximum boost and cut for the equaliser of either 6dB or12dB. The centre position of this switch performs thefunction, which silent

38、ly removes the graphic equaliser section from the signal path. Low cut filter switch enables a 30Hz subsonic filter to be connected in or out of circuit. The Overload LED The signal level is monitored at several separate points within the circuitry of the unit, and any one of these signals exceeding

39、 a threshold, set 3dB below clipping, will cause the LED to light. This threshold is set at +19dB, but it must be remembered that excessive boost of some frequencies combined with a high average input signal, can occasionally cause this level to be exceeded. In this event, the input level control sh

40、ould be turned down to correct the problems. However, if the input signal itself exceeds +19dBu the input stage will be overloaded. If this problem arises, the signal level from the output of the preceding piece of equipment must be turned down. The high quality faders used in this equaliser have an

41、 oil-damped action for smooth operation and feature a centre detent following accurate flat setting. The serial number of this unit should be quoted in any correspondence concerning the unit. Rear Panel Functions Main is supplied via an IEC standard 3 pin connector. A compatible power cable is suppl

42、ied with the unit. Input and output connections are made via complementary XLR style sockets. The mains fuse is located in a fuse holder, fitted to the rear panel. Always replace with the correct type and rating of fuse, as indicated adjacent to the fuse holder. Instrument Familiarisation 4 Input Ty

43、pe Impedance ( alanced Unbalanced Type Min. Load impedence Source impedance Max. Level Frequency response Distortion ( +4dBm) Equivalent input noise Channel separation Overload indicator Level Control Type Centre frequencies ISO Tolerance Maximum boost/cut Subsonic filter *MELT - Proprietory Microci

44、rcuit Voltage Consumption Nett Shipping Width Depth Height Input Output Power Output Performance Filters Power Requirements Weight Dimensions Terminations Transformer balanced 20k 10k Transformer balanced 600 dBu 0.01% 1kHz 75dB 1kHz +19dBu +6dB to - *MELT 2 x 30 25Hz - 20kHz 1/3 octave 0.5dB(20Hz-2

45、0kHz) 5% 6/12dB 18dB/octave - 3dB 30Hz 110/120/220/240V 50/60Hz 15VA 5Kg 6Kg 482mm (19”) 205mm (8”) 133mm (51/4”) 3 pin XLR 3 pin XLR 3 pin ICE Specifications 6 B2637-6.sch-1 - Thu Aug 19 16:13:29 1999 7 8 B2636-2.sch-1 - Thu Aug 19 16:13:01 1999 B2610-4.sch-1 - Thu Aug 19 16:12:34 1999 9 10 B2609-2

46、.sch-1 - Thu Aug 19 16:11:23 1999 B2609-2.sch-2 - Thu Aug 19 16:11:24 1999 11 12 B2609-2.sch-3 - Thu Aug 19 16:11:25 1999 The Use of Graphic Equalisers Equalisers may be used for corrective or creative purposes and the Klark Teknik DN360 is applicable in both live sound and studio applications. For

47、studio use, a pair of 1/3 octave equalisers might typically be used to compensate for deficiencies in the control room acoustics and in this instance, the precision allowed by 30 bands is a great advantage. Because it is almost impossible to set up an equaliser accurately without first analysing the

48、 room response, the centre frequencies of the filters have been chosen to correspond with those of the Klark Teknik spectrum analyser, the DN6000. In this way the readings can be transferred directly from the analyser to the equaliser. It must be stressed however that even a good equaliser doesnt of

49、fer a complete solution where the room has severe, inherent acoustic problems. For example, standing waves and resonances cannot be made to disappear simply by using equalisation. True their effects can be reduced, but in a critical listening environment such as a studio control room or concert hall, efforts must be made to minimise these problems at source before equalisation is employed. Also, equalisation cannot overcome the lack of sound clarity caused by rooms with unduly long reverberation times though they may be able to effect