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kef kube 200 manualTo purchase Kube 200 spares or accessories, please contact the company via their website or visit an authorised retailer. Please use the form below to log in, or click the 'sign-up' tab to create a new account. Please let us know if you have any questions or comment on how we run Hifi-Manuals. The Kube 200 was first manufactured in 1991. The schematic is a technical drawing or diagram of your system, a perfect supplement to the Service Manual. This data is collected and thus shared with Google. Got it. Please do not offer the downloaded file for sell only use it for personal usage. Looking for other manual. Document preview No preview for this item!For this no need registration. May be help you to repair. You could suffer a fatal electrical shock. Instead, contact your nearest service center. Note! To open downloaded files you need acrobat reader or similar pdf reader program. In addition, Also some files are djvu so you need djvu viewer to open them. These free programs can be found on this page: needed progs If you use opera you have to disable opera turbo function to download file. If you cannot download this file, try it with CHROME or FIREFOX browser. Translate this page: Relevant AUDIO forum topics: TECHNICS SU-V4X SAFETY MODBAN KAPCSOL BE. Sziasztok! Szertnem kerdezni a fenti erosito bekapcs utan a vedelmi led villog, a rele nem huz meg, SAFETY OOERATION villog. Ezt egy jol mukodo allapot utan produkalta, csak ugy hirtelen egy masnapi bekapcskor. Mit nezzek meg, merre kezdjem keresni a hibat. Elore is koszonom valaszotokat. Javitsd a cimet! JBL Flip3 as Bluetoot hangfal kibontasa Udvozlet,es egybe KELLEMES KARACSONYT mindenkinek!Van valakinek otlete hogy lehetne civilizaltan szetszedni. Sony CDX-L550X Tuner nem talal adot.A tuner halott. Sziasztok! Beleszaladtam egy ilyen keszulekbe, ami nem talal adot. Az FM AGC 0.3volt es 1.0Volt kozt maszkal szabalytalanul. Kerlek beneteket ha valaki tud segitsen ki egy kicsit mert elakadtam.http://aquatrustfina.com/userfiles/kx-ts600w-manual.xml
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Amikor hozzam kerult be se indult a keszulek. At forrasztottam mert az egesz furatszerelt elemek ki voltak repedezve. Minden mas funkcio tokeletesen mukodik. A radio eseteben a kimeneten feher zaj van.Nem lesz egyszeru dolog. Koszonom elore is! Udv Istvan78! Bose Sounddock 1 tapegyseg csati Sziasztok. Egy baratom megkert, hogy talaljak vagy gyartsak egy tapegyseget a Bose dokkolojahoz. Sajnos az eredetiket aranyarban adjak, igy gyartanom kell egyet. Talatam is egy elegans kis 4 pines csatit, de fennakadtam az eredeti csatlakozo labkiosztasan. Talaltam egy rajzot de nem tudom eldonteni, hogy a kabelen levot abrazolja, vagy a dokkoloban levot. Ha valakinek dolga volt ilyennel, es tudna segiteni, kerem ne tartsa vissza magat. Koszonom.. Similar manuals: You can write in English language into the forum (not only in Hungarian). Looking for other manual? For this no need registration. May be help you to repair. You could suffer a fatal electrical shock. Translate this page: Relevant AUDIO forum topics: Kondenzator szam(betu)kod A kondenzatoron ez a jelzes van:475,alatta E5Z Egy masik 105,alatta C7K.A feszultseguk erdekelne. Koszonom Technics RS-BX601 tipusu magno nem tudja azonositani a kazetta tipusat (megoldva) Sziasztok. A problema az, hogy amikor beteszem a kazettat nem ismeri fel a szalag tipusat automatikusan. A motoros kazettanyito magatol kiadja a kazettat, majd ujbol probalkozik. Amig a felirat villog, se tekerni, se lejatszani, semmit nem enged. Erdekes, valamikor neha beolvassa gond nelkul. Meg tudja valaki mondani, hogy mi lehet a gond, ill.Milyen automatika, alkatresz felelos ezert? Koszonom a segitseget! KarcsiVan egy 2?4ohm-os melysugarzom, melynek egyik tekercse 4ohm a masik 23ohm kornyeken van. Bevezetoszalat atforrasztottam, semmi. Milyen otletetek van ezzel kapcsolatban. Koszi Mindenkinek! ITT ST 541 audio center magnoresze nem jatszik le. Tisztelt Tanyalakok. Segitseget szeretnek kerni ITT ST 541 center javitasaban.http://www.snhpartners.nl/userfiles/kx-ts620w-manual.xml A hibajelenseg, hogy az egyik magnoresz nem ad ki hangot.A motor jo, tekeri a szalagot.Kicsereltem a teljes kazetta mechanikat, de akkor sem javult meg.Igy biztos nem a fej romlott el.A valaszto kapcsolo is jo, a masik magnoresz tokeletesen mukodik.Sajnos nincs kapcsolasi rajzom hozza.Elore is koszonom a segitseget. Similar manuals: You can write in English language into the forum (not only in Hungarian). It is also quite common that customers throw outUser manuals are alsoTry Google Search! Morgan EXP 2 Manual - Korg EXP2 - Foot Controller EXP2 Posted by: EliasAlterman 2020-11-08 22:37:55 I necedad the exp 2 manual.Thank you very much. Best regards. Barbara Gruner. SD card - Canon SM-V1 5.1 Channel Surround Microphone 4464B001 Posted by: M Gammie 2020-11-08 15:42:15 I have purchased this microphone for my Legria HF41 camcorder but the sd card supplied to update the firmware stays that there are no pictures on it. So cannot update. Shipping is 12.00 US 48 States only. Very hard to find and about impossible to find a new one. Retail was 400.00 years ago. You better snag it before someone else does. Kube 200 A new active low-level equaliser available as an option an designed for use with certain KEF Reference Series loudspeakers. It provides fixed and variable equalisation to suit listening environment, loudspeaker placement and user preferences. In recent years much of KEF’s product development programme has been directed towards the problems of living with loudspeakers and the difficulties the user has with fitting them into the listening environment in terms of appearance and performance. These developments have been designed to increase the speakers’ versatility and flexibility in use and to provide the user with the means to enhance and optimise their performance. KEF’s KUBE equaliser project is a part of these developments.KUBE 200 provides fixed equalisation which extends the loudspeaker’s bass response below its normal, unequalised cut-off point.https://events.citeve.pt/chat-conversation/boss-od-1-manual It offers variable low and high frequency equalisation The HF Contour control adjusts the high frequency level above 1kHz, while the LF Contour control adjusts the low frequency level below 160Hz, controlling the balance between bass and midrange. Recent research has indicated that room boundary effects on bass response are more complex than hitherto supposed. KUBE 200’s LF Contour control applies equalisation specifically calculated to compensate for the actual effects of room boundaries on the perceived bass response of the speaker. This allows mixed systems to be set up that contain both KUBE-equalised and ordinary unequalised speakers. KUBE 200 is enclosed in an attractive anodised aluminium sleeve with a heavy machined aluminium front panel. High-quality low-noise devices are used throughout.KUBE 200 has tape recorder input and outputs and a tape monitor switch to provide the monitor function when the KUBE 200 must be connected in the tape monitor loop of a receiver or amplifier. A Bypass EQ switch is provided to allow KUBE 200 to be removed from the signal path when circumstances dictate, or to facilitate comparisons during set up. To preserve high signal-to-noise ratio, KUBE 200 is powered by a separate outboard power supply, reducing the possibility of electronic interference. Kube 200 Specifications Description Active equaliser providing fixed and variable equalisation. Controls: LF ContourCentre frequency 160 Hz. Controls: HF ContourCentre frequency 1 kHz. Bypass EQ Push button bypasses fixed and variable equalisation. Rear Panel. You are currently using an outdated browser. To optimise your browsing experience, please update your browser. You can update your preferences, withdraw your consent at any time, and see a detailed description of the types of cookies we and our partners use in our Cookie Policy. This subwoofer system is provided with no less than 2 woofers in 1 cabinet.http://origamiperu.com/images/commerce-grants-manual.pdf The subwoofer was tested and measured by the technical service and is 100, it is also in fine optical condition (does have some light signs of wear on top, but not disturbing at all), and complete with power cord and multilingual manual. When shipping, the device will be packaged professionally and shipped securely and insured with track and trace. KEF KUBE-2 2 woofers in one housing. Bluebook The right price. Every time. Virtual Systems Let the world see what you've built. Merch Rep the community and hobby you love so much. SIGN UP LOG IN Forum The conversation begins and ends here. Learn Welcome to Audiogon. Express Checkout Dealer Program Music Dealer Program Advertise with Us Selling on Audiogon Buying on Audiogon Home Marketplace Accessories Equalizers KEF Kube 200 used KEF KUBE 200 Loudspeaker Active Equaliser with power supply and manual. The Kube 200 is an active low-level equalizer available designed f. 250.00 Sorry, this listing has ended. It provides fixed and variable equalization to suit listening environment, loudspeaker placement and user preferences. The KUBE equalizer provides fixed equalisation which extends the loudspeaker’s bass response below its normal, unequalized cut-off point. NEWSLETTER Weekly Digest of hottest items, coupons, offers and more. Something went wrong. View cart for details. All Rights Reserved. User Agreement, Privacy, Cookies, Do not sell my personal information, and AdChoice Norton Secured - powered by Verisign. I understand from the user manual that these speakers are designed to work with the Kube which, as a separate item, is not so commonly available. I'm wondering if these speakers, as good as their drivers are recognised to be, are not really worth much at all without the Kube. Many thanks, RichardIt won't go as deep without it. On the positive side it was just a 2nd order HPF with a hump causing the system to act as a sixth order highpass (4th order is coming from the reflex tuning of the speaker). The one who desigend it (can't remember his name) is also a member of this forum and he once posted something about it. With the search function you may probaly find it. The circuit as such isn't complicated - you just have to find the right dimensioning. Regards CharlesBe aware that some of the KUBEs did a lot more than just bass EQ, giving considerable midrange flattening also. Can't exactly remember which camp the 102 fell into. Try this website SpeakerTalk:: View Forum - KEF Speakers from the 1970s Either search there or contact speakerguru, a long time KEF engineer. Nothing would stop you from careful equalization on your own with either analog or digital means. David S.Having followed up on the posts as suggested I find again I'm bewildered by the height of expertise available on these forums. Congratulations! Back on the Kefs a moment, 'speaker dave'. You think I can with careful EQ bring these speakers back, within reason, to how they were meant to sound, albeit without the extended bass. Sounds like a good place to start. My amp is a Stereo Reciever NAD 7020e rated at 35w into 4ohms. The Kef 102 speakers require an amplifier capable of delivering 50 to 200 watts into 4 ohms. I am a little under powered here, would it be alright or should I be looking for another amp. Thanks again, RichardThe addition of the Kube then flattened the response. By the way, this is not much different than the original Bose 901 and its EQ. So the 102 will rise considerably in the mids (say around 2k) and will be soft in the bass. If you set up and equalizer with the opposite of that curve, that is a good start. You can have the extended bass as well, with some modest EQ at a frequency just below the natural rolloff. I would still urge you to visit the KEF site. If you can find a graph of the Kube curve you will be that far ahead in creating the right curve, even with a graphic EQ just trying to approximate it. I think speakerguru has even been able to link some people up with missing Kubes, so it doesn't hurt to ask. Regarding power, give your NAD a try before you discard it. Required power is a funny thing. 5 or 10 watts is usually way more than you need, but some times 300 watts isn't nearly enough. It really depends on how loud you like to listen, how far from the speakers you are, how dead your room is, etc. The benefit of the Kube is that the system efficiency could be maximized rather than thrown away to extend the bass. I don't think you need 50 to 200 watts. Regards, David S.Perhaps at some stage I might be able to find a Kube to try, though now I'd be very curious to hear what can be done with some equalization. As you suggest I think I'll give my NAD a go. I'm sure I'll be happy with it for now. Most of my listening is done at low volume and fairly close in to the speakers. I really appreciate your help and if I turn up some good results I'll let you know. Regards, RichardI designed most of the KUBE EQ's, and other than the KUBE for the 104.2, most of them applied midrange EQ in addition to bass extension. You could attempt to compensate this by tone controls or an equaliser, but you are not likely to readily get the correct compensation without measurement tools. Documentation on all the different KUBEs is sparse. I have attempted to get this myself from time to time but with limited success. Get ready to wish them happy birthday! AndrewThanks so much for your help, VictorResources saved on this page: MySQL 15.79 vBulletin Optimisation provided by. Giv en klar og omfattende beskrivelse af problemet og dit sporgsmal. Jo flere oplysninger du giver om dit problem og dit sporgsmal, jo lettere er det for andre KEF Kube-1 ejere at svare korrekt pa dit sporgsmal. Stil et sporgsmal Om KEF Kube-1 Denne vejledning horer under kategorien Hojttalere og er blevet bedomt af 1 personer med et gennemsnit pa en 9.3. Denne manual er tilg?ngelig pa folgende sprog: Engelsk, Hollandsk, Tysk, Fransk, Spansk, Italiensk, Portugisisk. Har du et sporgsmal om KEF Kube-1 eller har du brug for hj?lp? Stil dit sporgsmal her KEF Kube-1 specifikationer Hvis stojniveauet er over 120 decibel, kan der endda opsta direkte skader. Risikoen for horeskader afh?nger af lyttefrekvensen og varigheden.Dette gor det muligt at skabe en 5.1-effekt med kun 1 hojttaler. PDFmanualer.dk sikrer, at du hurtigt kan finde den manual, du leder efter. Vores database indeholder mere end 1 million PDF-manualer fra mere end 10.000 m?rker. Hver dag tilfojer vi de nyeste manualer, sa du altid kan finde det produkt, du leder efter. Det er meget simpelt: du skal bare indtaste m?rke og produkttype i sogefeltet og du kan straks se den manual du onsker, online og gratis. PDFmanualer. dk Hvis du forts?tter med at bruge dette site vil vi antage at du er indforstaet med det. L?s mere Ok. Please try again.Please try again.Shop SVS Shop now In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account Please try your search again later.The KEF KUBE-2 powered subwoofer is an appealingly small cube that pumps out 250 watts of power with its built-in class-D amplifier. The 10-inch long-throw driver coupled with a 10-inch auxiliary bass radiator makes sure your lows reach every corner of the room.To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. Please try again later. bodam 5.0 out of 5 stars I saw that this was the unit that now comes with the Kef egg system so, I decided to try it as a replacement. It fits in beautifully with my speaker system with nice, clear bass.The KHT3005SE speakers are usually mated with the HTB2 sub, but I prefer the look of the KUBE-2. Clean simple lines. Nice geometric shape. The HTB2 looks a bit too busy for my taste, and the illuminated KEF logo on top is rather gimmicky. Also, I prefer to hide the bass driver behind a cover -- naked drivers bother me. Notably, the HTB2 lacks both a Crossover Frequency Control and a Level Control. Since my Nakamichi AV-10 receiver has neither control for the subwoofer, the KUBE-2 is definitely the better choice for me. The KUBE-2 produces nice deep bass, which is great for movies. All manuals on ManualsCat.com can be viewed completely free of charge. By using the 'Select a language' button, you can choose the language of the manual you want to view. Issue 1:August 2007Model Kube-1 Subwoofer. Installation Manual. Manuel d’installation. Bedienungsanleitung. Manuale d’installazione. Manual de instalacion. Manual de instalacao. Installatie. InstallationsanvisningGrSyThe lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence ofThe exclamation mark within an equilateral triangle is intended to alert the user to the presence of important operating andCorrect Disposal of this product.This marking indicates that this product should not be disposed with other householdIf it is not, check with your supplier before proceeding.The following icons are used throughout this manual to help you safely install your new speakers. P. PlSie erleichtern eine sichere Installation Ihrer neuen Lautsprecher. B. BiSiSySiSiSiFoVielen Dank fur den Kauf des aktiven Subwoofers KEF Kube-1.Wir sind davon uberzeugt, da. Ihr Kube-1 lange Zeit zuverlassig funktionieren und eine hohe. Klangqualitat gewahrleisten wird. Lesen Sie bitte diese Anleitung sorgfaltig durch, bevor Sie Ihr Gerat anschlie?en. Vi ringraziamo per aver dato la Vs preferenza al subwoofer attivo KEF, apparecchio affidabile e dalle elevate prestazioni. Prima di effettuare i collegamenti si consiglia diLe damos las gracias por haber adquirido el altavoz para graves KEF Modelo Kube-1. Estamos seguros de que el Kube-1 le proporcionara un sonido de calidad y dePor favor, lea este manual antes de intentar conectar y poner en funcionamiento el altavoz. Obrigado por ter escolhido o modelo KEF Kube-1: um subwoofer com amplificador.Acreditamos que o seu Kube-1 lhe oferecera durante muitos anos, um som de altaWij danken u van harte voor uw aankoop van de actieve subwoofer KEF Model Kube-1.Wij zijn ervan overtuigd dat uw subwoofer u jarenlang hoogwaardigLees eerst deze handleiding aandachtig door alvorens u de subwoofer Kube-1 aansluit. Tillykke med erhvervelsen af din KEF model Kube-1 subwoofer med forst?rker.Vi er overbevist om, at din Kube-1 vil give dig en stabil high performance sound iKuInInWaInThe third prong is providedIf the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. Refer all servicing to a qualified service personnel. Servicing is required for any damaged parts such as power-supplyMoThe apparatus shallCare should be taken so that objects containing liquids are not placedSoMains plug is used as thePrThe main plug should not be obstructed OR should be easilyAcPeReSeInstructions.All other servicing should be referred to qualified service personnel.Fixer tous les cablesBitte alle Lautsprecherkabel sorgfaltig verlegenOs cabos das colunas espalhados sao perigosos, fixe todos os cabosDe kabels steeds op een veilige plaats leggenKuFrequency range 38Hz - 150Hz. Amplifier 150 Watts built in class D amplifier. Maximum Output (SPL) 108dB. Low Pass Filter Variable 40Hz - 140Hz, 4th-order. Low Level Signal Inputs RCA phono sockets. Enclosure Type Passive radiator. Internal Volume 15.4 litres. Net Weight 9.6kg (21.16lbs). Dimensions (H x W x D) 291 x 293 x 293 mmPower Consumption 150VA. Finish Black. GP Acoustics GmbH, Heinrichstra?e 51, D-44536 Lunen, Deutschland. GP Acoustics (France) SAS, 39 Rue des Granges Galand - BP414, 37554 Saint Avertin CEDEX, France.Perhaps the users of ManualsCat.com can help you answer your question. By filling in the form below, your question will appear below the manual of the KEF Kube-1. Please make sure that you describe your difficulty with the KEF Kube-1 as precisely as you can. The more precies your question is, the higher the chances of quickly receiving an answer from another user. You will automatically be sent an e-mail to inform you when someone has reacted to your question. Discrete in size, but nothing discrete about the depth of bass. With an 8-inch driver, the Kube8b is perfect for smaller living rooms. And with KEF’s unique capability to design, build and integrate the driver in-house, we take optimisation to a whole new level. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the custom driver. Giving you unparalleled precision and ultimate synchronicity between amplifier, driver and sealed cabinet.Easy configuration Set up the Kube where it’s most convenient to you, match it to any main speaker or with any type of music system and start exploring new depths in your sound. The KUBE-2 features a side-firing 250mm (10in.) long-throw bass driver and a complementing 250mm (10in.) We are your one true, trade only distributor and our all-round service means that we deliver for you every time. We have published many pages about subwoofers and how to set them up correctly.Forget about the internet images, nothing will prepare you for how cute this 30cm cube is. The top black glass plate is surrounded by a fabric from all sides. The rear control panel is embedded into it. There is a 200mm bass driver in the Kube 8b’s cabinet but the driver cannot be seen as the fabric cannot be removed. Don’t be afraid to experiment as actually you may find that cabinet voicing is the best for you while the sub is actually not in any cabinet. The good thing is that the Kube 8b can be connected via loudspeaker cable to amplifier or speakers. The power inlet is of IEC C8 type so no use for aftermarket high end cords here. Everything is clean and well thought. In my room I hear less bass at 50Hz point which is a result of room modes. The only thing I can do about it is to move my listening chair. This solves the problem but creates another problems at different frequencies. Anyway, I tried to tackle the issue with the KEF. When such a spot was found I moved the sub over there and set it up by ears. How to do this is described in detail in our articles. But the low rumble filled in the whole house.Up to ca 25m2 it will be a good companion for stand-mounted speakers or for bookshelf monitors. It looks nice which counts a lot as most subwoofers are just big black ugly boxes. When critically auditioned it reliable added the bottom octave to Steinway grand piano even with floorstanding speakers and complemented their ambience. Without it the music breathed less. When I played loud bass heavy music I could hear the fabric resonate. This was audible with sustained signals like synthesizers or organ and did not appear in transient programmes like kick drum or electric bass. It is also possible that only the reviewed piece was doing so. I had to pull the 50 kgs of the sub upstairs and it was not an easy job, rather an.We have published many pages about subwoofers and how to set them up correctly. Though the basics are similar the SVS makes the dial-up routine much more visual and. With the exception of a cathedral organ there is no other instrument fundamental that requires such the extension for pure stereo playback. Apart from few tracks on. The assumption that a pair full-range loudspeakers can deliver precise and extended low frequencies is.Web by PDC. Vertical Horizontal b. S SS Range of listening window'adjustments 15 To check polarity, bring the loudspeakers close together and facing each other. Play a mono signal through both simultaneously. Reverse the polarity of the leads to one of the loudspeakers and repeat the test. The bass will be much fuller and rounder when the polarity is correct. An organ recording is usually best suited for this purpose. Speaker Location Model 105 Series il is capable of giving a stable stereo image over a wide listening area with an unusually vivid sense of depth perspective. Since this is achieved in part by the shaping and proportioning of the enclosures to permit sound to diffract smoothly, these benefits may be impaired by reflections from nearby walls. The loudspeakers should therefore be stationed at least 1m from side walls and a minimum of 50cm from any back wall. The spacing between the two speakers, and the listening distance from the speakers is important. If the speakers are placed too close together, the stereo image will not be developed. For normal listening, placement will usually be between 2m and 4m apart depending upon the listening distance and the room size. The listeners' distance from the speakers should be equal to, or greater than, the distance between the loudspeakers, fig 13. Operating Adjustments The listening window The tonal quality and clarity of the reproduction, and above all, the sharpness of the stereo image, are determined by the sound that reaches the listener directly, without reflection from walls, floor or ceiling. Ideally, therefore, the frequency response of the loudspeaker, and hence the spectral content of the programme, should be constant over an area covering all the listeners. In a multi-unit loudspeaker, the polar characteristics, i.e. the variation in response with the direction of radiation, depend on the size, shape and positioning of the drive units and of their enclosures, together with the electrical characteristics of the crossover filters. The orientation of the head assembly is indicated by a light-emitting diode (LED) energised by the audio signal fed to the loudspeaker. The LED is masked so that the TEST AK LEVELS ARKI SLIYMBOL 3 16. a. CC 12 BEROES... AMAN coin 20 glow, is visible only within the optimum listening areas. As long as every listener can see both lights of a stereo pair, there will be no blurring or instability of the images through differences in response of left and right hand loudspeakers. Direct head assembly towards the listening position. Select programme signal with low dynamic range. Interstation noise or hash' from an FM receiver is convenient for this purpose. Increase level of volume until LED is continuously illuminated, fig 17. Peak level indicator Under programme conditions, amplifier peak clipping can occur even when the average power into the loudspeaker (which is directly related to sound level) appears quite low. This causes audible distortion. So that the listener may know when audible distortion is a result of amplifier overload, Model 105 Series Il is fitted with a peak level indicator. This function is provided by the same LED which is used for setting up the listening window. The rotary switch at the rear of the head assembly is graduated from 50 to 200 watts in seven steps and should be set to correspond to the rated output power of your amplifier (into 8 ohms) fig 20. If your amplifier has an output greater than 200 watts the switch should be left in the 200 watts position (see also next section - power amplifiers). The LED will glow when the peak-to-peak voltage from your amplifier exceeds that required to deliver its rated output power into 8 ohms. The time constant associated with the overload indicator has been chosen so that the visual indication corresponds to the onset of audible distortion. Power Amplifiers The Model 105 Series II will operate satisfactorily with power amplifiers capable of delivering 50-200 watts into 8 ohms. Amplifiers larger than 200 watts may be used but on no account should their rating exceed 400 watts, as peak voltages in excess of 70V may damage the S-STOP protection circuit. It is important that the peak level indicator switch is set to the 200 watt position when amplifiers of between 200-400 watts are used. N.B. If the amplifier is driven at such a level that the LED flashes more or less continuously in the 200 watt position, then the programme rating of the system is being exceeded and the protection circuit is likely to operate. Occasional peaks of 200 watts are permissible. S-STOP Protection Circuit S-STOP (Steady State and Transient Overload Protection) is a self-powered electronic circuit which protects the system from accidental overload. Three protection modes are provided - peak, thermal, and low frequency excursion, and whenever the safe thresholds are exceeded, a relay operated attenuator reduces the input to a safe level, Peak The peak protection mode causes the S-STOP circuit to operate whenever peak voltages to the system are so high as to be damaging to the dividing network, or likely to cause unacceptable distortion levels on programme peaks. Thermal In the thermal sensor mode the input level to each drive unit voice coil is monitored, and whenever their safe operating temperature is reached S-STOP is activated. Each Model 105 Series Il is supplied with a 10m length of suitable cable that will not audibly degrade sound quality and which should be long enough for most installations. If longer cables are required, the total resistance should not exceed approximately 0.3 ohm.