From Jim Marshall

Congratulations on purchasing the YJM100, our Signature Series tribute to one of the most revered and technically gifted guitarists I have ever known – . Over the years I have spent a lot of time with Yngwie and if there's one thing he demands it's perfection, which is why it makes me especially proud that the and the speaker cabinets he has chosen to use throughout his career have always been Marshalls. In fact, the last time I saw Yngwie perform he was using no less than 20 Marshall heads and 20 cabinets on stage!

As a way of saying ‘thank you’ to Yngwie for the decades of loyal ENGLISH support, I put the Marshall team to work on an that would offer that distinctive Malmsteen sound, whilst including a host of new features that the modern guitarist will find very useful. Incredibly, we have managed to incorporate both Booster and Noise Gate functions, plus Reverb, an FX loop and an all-new variable output control making this amp extremely versatile – just like the man himself.

In addition to delivering classic Marshall tones, we’ve preserved the look of Yngwie's favourite vintage heads by incorporating all the new controls and features on the back panel, giving the YJM100 that familiar 'Plexi' persona. Overview Working with Yngwie on this project has been a great experience Introducing the YJM100 Signature Series amplifier, created footpedal (PEDL-00046) and all feature true bypass, and a great deal of fun due to his boundless enthusiasm. He has to honour our longstanding partnership with neo-classical ensuring authentic vintage purity of signal path when these played a huge part in this amp's development, taking an active rock icon, the Swedish six-string supernova, additional features aren’t being used. interest in getting the sound, the look and the features just right. Yngwie J. Malmsteen. Yngwie’s meticulous attention to detail and his unique guitar sound But that's not all, the YJM100 is the first Marshall amp to have been embedded in the amplifier you now own, so you can rest There are literally two sides to the YJM100. First, the front house our brand new Electronic Power Attenuation (EPA) assured that your YJM100 has the Malmsteen seal of approval. panel offers classic tone controls, namely technology, providing great tone at any volume. It works by Volume controls for Channel I and Channel II, a shared EQ electronically modifying the amplifier's power stage I would like to take this opportunity to wish you every success with section of Bass, Middle and Treble plus a Presence control parameters, whilst automatically adjusting the bias circuitry. your new YJM100 Signature Series amplifier and hope it brings you – vintage all-valve Marshall tone and style at its best. This makes it possible to reduce 100 Watts of pure valve many years of playing pleasure. Welcome to the Marshall family. Looking at the rear panel however reveals a very different power to just 0.1 Watt, but still maintain all the tone you set of features, engineered to enhance your playing would expect of a fully cranked Marshall. Yours Sincerely experience and deliver maximum tonal potential. The Booster function does exactly what it says on the tin, with A 50 Watt power reduction switch is also included which controls for both Gain and Volume to set your boosted effectively turns the YJM100 into a YJM50, providing a sound. This feature has been based on Yngwie's favourite totally different feel plus output options from 50 Watts to Boost pedal for complete authenticity. 0.05 Watts, using the same exact attenuation technology. Furthermore, the YJM100 features self-biasing circuitry, The YJM100 also benefits from a sophisticated Gate which can be engaged every time the amplifier is switched feature, allowing you to tame unruly noise/feedback at high on. It also boasts a Valve Fault system which detects, Dr Jim Marshall OBE gain levels. The intuitive Gate circuitry reacts dynamically to indicates and removes from the circuit any faulty output your style of playing, cutting in quickly during staccato valve, switching automatically to the spare valve if the passages while eliminating clipped notes when sustaining. amplifier is being used in 50 Watt mode. Specially voiced, studio-quality digital Reverb allows you to adjust your sound to any acoustic situation or personal Please take the time to read through the rest of this preference, while the series FX Loop caters for any handbook for more detailed explanations of the individual additional effects you may wish to hook up. All of these features and also an exclusive interview with the man functions can be accessed via the included YJM100 himself – Yngwie J. Malmsteen.

1 ENGLISH 3 12 13 11 10 9 If linking the channels, at least one 8 7 Channel Volume Controls 8. VOLUME I – HIGHControls TREBLE the CHANNEL overall output level of Channel 1. 9. VOLUME II – NORMALControls CHANNEL the overall output level of Channel 2. Guitar Inputs The two channel design oftraditional the Marshall YJM100 Super amplifier Lead is ofequipped based the with on 1970s 4 the and guitar as inputsprovides such (two a is per different performance channel). attribute. Eachnormal The input sensitivity upper inputs inputs with are thesensitivity lower version inputs of being the a sameand lower channel. is Any a input matter can ofTraditionally be designed personal used to taste. accommodate differentlevels, guitar these signal inputs can bejumping) put the to channels. another Because use theboth – guitar channel linking signal inputs (aka is it present isinput at possible to to the connect opposite the sensitivitydiagram). un-used This jack channel provides of a the mix otherchannels, of channel which (see the can tonal be characteristics controlled of by both adjusting the volumeImportant pots. Booster Note: of the inputs must bethe the Booster normal or sensitivity gate input (rear of panel, Channel features I 2 if and 3) are to be used. 10. INPUT JACK Connects your guitar to the normal sensitivity input of11. Channel INPUT I. JACK Connects your guitar to the low sensitivity input of12. Channel INPUT I. JACK Connects your guitar to the normal sensitivity input of13. Channel INPUT II. JACK Connects your guitar to the low sensitivity input of Channel II. 6 5 4 3 2 1 IMPORTANT: READ BEFORE POWERING UP Before powering up your Marshallan amplifier appropriate you loudspeaker must cabinet(s) ensure orconnected that dummy to load the is correct impedancepanel. loudspeaker Failure jack to on do the thiscaused rear could to result your in amplifier. Always seriouscable use damage to an being connect un-shielded an loudspeaker amplifiera to screened a (shielded) loudspeaker guitar cabinet, cable. When never powering use up the amplifier(1) always first engage to the allow Power therecommend Switch power setting valves all to volume warm-up, controlsminutes we to the would zero. power After also valves about willtemperature two be and at the their Standby correct Switchprolong operating (2) valve can life, be the engaged. Standbyturn To Switch the alone amplifier should on be andAlways used off allow during to the breaks amp in to a cool performance. down before moving. 1. POWER SWITCH On / Off Switch forthe mains amplifier power is to switched the offelectricity amplifier. and supply Please unplugged before ensure from you the move mains it. 2. STANDBY SWITCH The Standby Switch is used(1) in to conjunction ‘warm with up’ the thethe amplifier Power output before Switch valves. use and to prolong the life3. of INDICATOR This indicates that power isilluminate being when supplied the to Power the Switch amplifier. (1) It is will engaged. Equalisation Note: The tone network isaffects highly the interactive; behaviour altering of one theexperimentation control others. is Because the of best this, waygood to place achieve to your start desired isthere. sound. to If A set you all are EQ lookingin controls for mind to a that half particular your and tone choice adjust it of from is guitar important plays to an4. bear important PRESENCE role CONTROL as well. This control adjusts the powerresponse, amplifier's making high your frequency tone more cutting and 'present'. 5. BASS CONTROL Controls the amount of lowtone. frequencies (bottom end) in your 6. MIDDLE CONTROL This controls the all-important mids.your Turning guitar this sound up fatter. will Conversely,middle reducing make in the your amount tone of will result in a sharper,7. cutting TREBLE ‘scooped’ CONTROL tone. Controls the high frequencies (top end) in your tone. YJM Front Panel Features Front Panel

“The Booster is built-in, footswitchable for instrumental sustain and fluidity “When I play live I always use a 100 Watt head and a 50 Watt head at the isl,cnrtltoson congratulations yourFirstly, new Marshall signature amplifier. How does it feel to have your“I'm name very on excited and a honoured to Marshall? actually have myI name have on used since the the very very amp I beginning. the sound, can't feel say and enough about look my of love theI’ve for wall insisted on of having Since Marshalls. them I behind me was at 10must all have years been old, times. Through by approached the virtually years every I amp companyman, known and to my answer has always beenit’s the but Marshall or same...Thanks, no nothing for thanks, me! To finally havehead my is own an signature Marshall honour and this amp is truly a masterpiece!” Let’s go back to the when beginning; didand you realise first this pick was up the a for instrument guitar you? “I got my first guitar on myback at 5th the birthday and age knew of there was seven.” no turning What was the music scene like growing upguitarist such in as Sweden yourself? for a budding “The Swedish scene really wasn't happening in the lateslow. When '70s I so it was 18 was a I bit was invited to the US andYou then have it a really very took sound distinctive off.” and unique playingwould style, who you say were your major influences? “Believe it or not but my biggestWhen influence was I and was still 12 is I classical violin. heardthat 24 Paganini's sound and Capprices and technique decided was immediately what I wanted to implement on guitar.” How do you feel about being labelled a“It's very guitar but legend? flattering, I keep aextremely good dedicated to distance from my perfecting that playing, composing and and performing.” I am still hadYou've a very long and do career, successful same you passion still for have the the guitar and for Everyday creating is“Absolutely! music? an adventure and it's very exciting.” renownedYou're for having a massive backline at your shows, how many Marshall amps and cabs do you like“As to many as use live? possible. They say thatseen only from two outer manmade Great objects space...The can Wall of be China andwall Yngwie of Malmsteen's On Marshalls! my last tour I used 34 heads and 28 veryYou're 4x12 dedicated to cabs.” vintage have Marshalls, you ever been tempted to use modern higher gain amps? “I love the warm, organised and distortion sustain ofbut the as vintage models, long as it is a Marshall I will use it.” The music industry has changed a lot sincewhat you do began you your career, think is the futureYngwie of J guitar Malmsteen? music and what is the“Lately, next for guitar is very hot again. It’s and everywhere never follow that's trends, great. I But always I do what Ialways great appreciate like music and to great do. playing, I I don't thinkever think the change.” that audience will will beenYou've heavily with involved theYJM100s what development, was it like working with the Marshall teamexpect and from this what signature Marshall can amplifier? guitarists “It is a pure joy toinvolved in work designing this so amazing closely amp. with Once everyone at you Marshall plug andbe into be blown this away so amp with you'll the screaming sound andimagine a it's versatility got. more I complete amp! couldn't Vintage look and andversatility sound, with features. incredible in lead work. When you add gainbargain but though, you that also is get by eliminated noise the into the Gateallows you the to amp has. add The ambience in built-in Reverb awant dry to sounding room break down and walls when the you means Attenuator you don't down some. can turn it same time. 50 Watts has a fluid creamy, is and very warm hard sound and while So, 100 aggressive. for Watts me,with a the ultimate 50W sound is hooked up one The together. 100W resultyou is cannot simply just massive! That buy is one why YJM100!!” I’ asalor Marshall “It’s fornothing me!” Q&A 2 Rear Panel

1 2 3 4 5 6 7 8 9 10 11

YJM Rear Panel Features

1. LOUDSPEAKER OUTPUTS Threshold knob to control the point where the noise reduction before activating the bias procedure. Possible values range Warning: Before going any further, make sure your amplifier is begins to work, making sure you are not picking up hum from between 20mA and 50mA with every mark representing 3mA. compatible with your electrical supply. If you have any doubt, Warning! Never use the amplifier without a speaker or dummy the amplifier or other equipment, as this may result in a setting Since there is not a ‘perfect’ bias setting, we recommend values please get help from a qualified technician – your Marshall load attached! There are 5 loudspeaker outputs available on the higher than needed. The Gate function can be activated using between 30mA and 40mA. dealer can help you in this respect. rear panel. They are labelled according to the intended either the rear panel switch or the included YJM100 impedances: Footcontroller. The chart on page 33 can be used as a guide for setting bias The correct value of mains fuse is specified on the rear panel of levels for the YJM100 the amplifier. NEVER attempt to bypass the fuse or fit one of the ENGLISH 4 : connect a single 4 Ohm guitar cabinet or two 8 ohm guitar 4. REVERB incorrect value. cabinets.Ω For decades now, Yngwie has used reverb to counteract the If you are unsure on how to properly bias an amplifier we 8 : connect a single 8 Ohm guitar cabinet or two 16 ohm guitar problems of playing in spaces which are acoustically dry and it's suggest you speak to your authorised Technical Specification cabinets.Ω for this reason that we have included this feature. The amount of dealer who will be able to advise you. Power Output - 100WRMS 16 : connect any 16 Ohm guitar cabinet to this jack. this studio quality, digital reverb is adjusted via the Level control Weight - 24 kg Ω and can be engaged from either the rear panel or using the 8. POWER ATTENUATION LEVEL Size - 740mm x 285mm x 280mm Warning: Although the YJM100 amplifier has 5 loudspeaker YJM100 Footcontroller. The light on the Reverb switch This control provides access to the YJM100's Electronic Power outputs, never attempt to connect more loudspeaker cabinets illuminates to indicate active status. Attenuation (EPA) feature. The internal attenuator allows you to than rated. The safe combinations are 1x16 Ohm, 1x8 Ohm, 1x4 adjust the overall output volume of the amplifier whilst retaining * EUROPE ONLY - Note: This equipment has been Ohm, 2x16 Ohm or 2x8 Ohm. Any other configuration may 5. POWER 50W SELECT SWITCH all of your tone. This works by electronically reducing the tested and found to comply with the requirements of the EMC stress the power amplifier section and in extreme cases may The YJM100 has been designed to be used in a variety of voltages to components within the amplifier instead of placing Directive (Environments E1, E2 and E3 EN 55103-1/2) and the lead to valve and/or output transformer failure. environments, and one feature that makes this possible is the resistive loads in the circuitry. Output of between 100% and Low Voltage Directive in the E.U. choice of either 50W or 100W operation. Activating this feature 0.1% can be achieved, so depending on the Power mode 2. BOOSTER removes 2 of the power valves from the circuit, effectively selected it is possible to reduce this 100 Watt all-valve amplifier EUROPE ONLY - Note: The Peak Inrush current for the This engages the onboard Booster feature, an essential item creating a 'YJM50', and allows you to drive the power amp to its down to just 0.05 Watts, making it ideal for both stadium and YJM100 is 38A amps. required by Yngwie for some of his playing styles. The YJM100 full potential at 50 Watts. home use! Booster functions in much the same way as a traditional stompbox, except this has been integrated into the optimum 6. VALVE FAULT 9. FX LOOP SECTION location of the amplifier's circuit for maximum effect. When the Like any high performance machine, parts such as valves wear The YJM100 is equipped with a series FX Loop which can be Booster circuit is engaged, the light on the rear panel switch will out over time. It is essential that these all-important components accessed via the rear panel or the supplied Footcontroller. be illuminated. The Gain control defines how much pre-amp are working properly and that's where the Valve Fault indicator Connect your external FX input to the SEND jack, and the FX gain the circuit delivers whilst the separate Volume control becomes useful. This system allows you to monitor the output to the RETURN jack. allows you to adjust the amount of 'boost' required. The Booster YJM100's power amp and clearly indicates any faulty valve. can also be activated via the YJM100's included Footcontroller. Also, if a valve develops a problem, the amplifier will 10. FOOTCONTROLLER automatically remove the faulty valve from the circuit and, if the The supplied YJM100 Footcontroller (PEDL-00046) engages Note: When engaged, the Boost function will automatically turn amplifier is in 50W mode, will automatically switch to the spare four of the aforementioned features – BOOSTER, GATE, on the Gate feature. valve ensuring continuous operation. REVERB and FX LOOP. Please refer to the relevant sections of this handbook for an explanation of the operation of these. 3. GATE 7. BIAS SETTING This Footcontroller has been designed using Marshall Yngwie Malmsteen's playing style demands that all unwanted The Bias setting of an amplifier ensures correct operation. To set Amplification's patented STOMPWARE® Technology, allowing noise or feedback during performances is removed. Due to the the bias level of your amplifier press and hold both the 50W you to connect to the amp using a standard 1/4" jack mono high gain characteristics of the YJM100 amplifier (especially with power mode switch and FX Loop switch while powering up the guitar cable. the booster circuit engaged) it is essential that a high quality amplifier. Setting the bias of an amplifier is not something that noise gate is used. The onboard Gate in the YJM100 is an needs to be done everyday, however, having the correct bias will 11. MAINS INPUT expander which progressively attenuates the signal, following its prolong the life of your valves and ensure your amplifier Your amplifier is provided with a detachable mains (power) lead, dynamics. The Threshold control has a program dependent functions properly. which is connected here. The specific mains input voltage rating decay ratio allowing very slow decay times for slowly moving that your amplifier has been built for is indicated on the rear guitar signals, thus maintaining the natural sustain, and very fast The desired biasing current can be selected by turning the trim panel. decays for staccato rhythms and short pauses. Adjust the control located to the right of the Valve Fault indicator LEDs

4 5 Block diagram Bias Current (mA) EL34, , 5881, KT66, KT77 50 47 Input II Input II Input I Input I High High Low Low 44 41 38 36 Reverb Reverb 32 29 26

Booster 23 20

Mains Voltage Europe 200v 210v 220v 230v 240v 250v 260v Mains Voltage US/Canada 104v 110v 115v 120v 125v 130v 136v V7 Mains Voltage Japan 87v 91v 96v 100v 104v 109v 113v 52Volume II V5:2

Bias Current (mA) KT88, KT90, 6550

Presence 50 V8:2 V8:I 47

51Volume 3 V5:1 44 41 38 36 32 29

50w 26 23 20

Mains Voltage Europe 200v 210v 220v 230v 240v 250v 260v V2 V4 V 3 VI Mains Voltage US/Canada 104v 110v 115v 120v 125v 130v 136v 6Bs i Treble Mid Bass V6

isHT Bias Mains Voltage Japan 87v 91v 96v 100v 104v 109v 113v Self Bias Gate Sense Very hot, overloaded Hot, not recommended Recommended Cold Very cold Bias Channel Jumping Boost On Boost On

Inputs I Inputs II Inputs I Inputs II Threshold 16 Guitar Guitar Gate 4 8

Volume I Volume II Volume I Volume II

edReturn Send Gate and booster used in channel I and II Turn channel I volume to 0 to use booster and gate in channel II FX Loop

Boost On Boost Off

Inputs I Inputs II Inputs I Inputs II

Guitar Guitar

Volume I Volume II Volume I Volume II

Channel I boosted Turn channel I volume to 0 to use gate in channel II Channel II not boosted 32 33 Marshall Amplification plc Denbigh Road, , MK11DQ, England Tel : +44 (0)1908 375411 Fax : +44 (0)1908 376118 www.marshallamps.com

Whilst the information contained herein is correct at the time of publication, due to our policy of constant improvement and development, Marshall Amplification plc reserve the right to alter specifications without prior notice.

BOOK-00096-00 / 3 / 2011