Marshall JTM45 2245 audio amplifier
Contents
1. Always use a non screened Marshall approved speaker lead when connecting an extension cabinet to these units gt WARNING Do not obstruct ventilation grilles and always ensure free movement of air around the amplifier USA ONLY defeat the purpose of the polarised or grounding type plug A polarised plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety When the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS KEEP THESE INSTRUCTIONS Atalak J ss ee F Ta Tr s Introduction The Marshall re issue range consists of the 100 Watt 1959SLP head the 50 Watt 1987X head the 2245 JTM45 head and 1962 Bluesbreaker combo All are faithful reproductions of the originals which shaped the sound of the electric guitar as we know it The main characteristic that these amps share 15 their simplicity of operation and superb natural valve tone Achieving the beautifully organic and vibrant overdrive which is their trademark can only be done in one way crank em up The result is pure majestic tone uncluttered by unnecessary circuitry With solos this produces a big round warm2. Channa 2 2 3 Loudspeaker Outputs These are for connection to either the intemal Speakers and or an external load i e speaker extension cabinet s See item 4 4 Output Selector Matches the amplifier s output to the load impedance With all valve amplifiers is imperative that the amplifier is connected to a load whilst in operation and that the impedance selected the amplifier matches the total impedance of the internal speakers and or extension speaker cabinets The two intemal speakers are 16 Ohms each These are wired in paralla giving an overall impedance of 8 Ohms therefore the output selector should be set to 8 Ohn If an additional 8 Ohm extension speaker cabinet is used in conjunction with the internal speakers the output selector should be set to 4 Ohms Note No additional extension speaker cabinet with an impedance lower than 8 Ohms should be used in conjunction with the internal speakers Failure to comply with these points will result in damage to the amplifier Your amp should be completely powered down before the selector is turned CONNECT SPEAKERS BEFORE USE dD o 117V 60Hz TLEA 230V 175 Watts 15 117V 4 5 6 7 5 HT Fuse The correct value of H T fuse is specified on the rear pana of the amplifier Please refer to Important Safety Instructions page 2 6 Mains Input Your amp is provided with a detachable mains power lead which is connected here The specific mai
3. sustain full of classic character With chord work you get a bark and percussive attack with a natural sounding break up which allows each note to ring out in a glorious musical crunch N3 PX Loop Due to high demand a sonically transparent effects loop has been added to the 1959SLP and 1987X models This circuitry has been designed to not colour the guitar sound so that youri remains The bypass switch gives you the option of completely removing this circuitry if desired The effects loop level selector ensures compatibility with rack processors or floor stomp boxes i e e EF 1959SLP amp 1987X MAINS STANDBY PRESENCE BASS MIDDLE M 1 Power Switch On Off Switch for mains power to the amplifier Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved 2 Standby Switch The Standby Switch is used in conjunction with the Power Switch item 1 to warm up the amplifier before use and to prolong the life of the output valves When powering up the amplifier always engage the Power Switch item 1 first This allows the application of the voltage required to heat the valves to their correct operating temperature After about 2 minutes when the valves are up to the correct temperature the Standby Switch can be engaged Upon doing this the H T High Tension which is the hi
4. 1959SLP 1987X fen 7 2245 45 pee 1962 Bluesbreaker ra 2 a EELS rPI IPPT oes i nimm m PL chek pe ee Siete cr n CEL a ee ee TETTE EE Shee om ee T i moe a Owners Manual T 2 J gt From the Chairman would like to personally thank you for selecting one of my vintage re issue amplifiers The Marshall reputation has been built upon many things but our longevity comes mainly as a result of the continual relevance of the concepts behind the design and build of our amplifiers Added to this are solid workmanship reliability stylish looks and above all great tone The continual fascination and love many guitarists show for our vintage amplification is a testament to just how relevant and important these models still are today The amp you have just acquired was originally launched in the 1960s A time when the face and sound of popular music was rapidly changing and players were constantly pushing back the musical boundaries Each of these amps was there at the beginning of this music revolution
5. ARNING risk OF HAZARDOUS ENERGY SELECTOR MAINS FUSE H T T3 15A 230V T6 3A 110V a o 110V 60Hz 375 Wats MAINS INPUT MAINS INPUT MANS FUSE H T 7500 tio v D 110V 60Hz MADE IN MARSHALL AMPIIFICATION aie Mets BLETC LAND HLEY MILTON KEYNES a bY EDT 8 9 10 11 If running into two 16 Ohm cabs the amp should be set to 8 Ohms If running into two 8 Ohm cabs the amp should be set to 4 Ohms Failure to comply with these points will result in damage to the amplifier Your amp should be completely powered down before the selector is turned 8 Mains Selector Matches the amplifier mains transformer voltage to the incoming mains voltage Ensure that the rotary Mains Selector is set to the correct mains voltage applicable to the country where used If you do not know the mains input voltage contact your authorised Marshall dealer Your amp should be completely powered down before the selector is turned Adjustment from 230 220V to 110V or vice versa will require the mains fuse to be changed to the corresponding value as detailed on the rear panel 9 Mains Input Your amp is provided with a detachable mains power lead which is connected here The specific mains input voltage rating that your amplifier has been built for is shown on the back panel Before connecting for the first time please ensure that your amplifier i
6. amplifier on and off during breaks in a performance Also upon full power down always disengage the Standby Switch prior to the main Power Switch item 1 3 Indicator The Indicator will be lit when your amplifier is on and will not be lit when the amplifier is switched off 4 Speed Control Controls the speed of oscillation when using the tremelo effect 5 Intensity Control Controls the intensity of oscillation i e the effect depth when using the tremelo effect Note The tremelo effect will only work when playing through Channel 2 of the Bluesbreaker combo 6 Presence Control Adds higher frequencies to the guitar tone creating crispness and bite Turning this up will make the sound more cutting and present 7 Bass Control Controls the amount of low frequencies or bottom end in your tone MIDDLE TREBLE VOLUME VOLUME II 00000 0 ES 8 9 10 11 13 15 8 Middle Control Dictates the middle register of the amplifier Turning this up will make your guitar sound fatter Conversely reducing the amount of middle in your tone will result in a sharper and thinner guitar sound for amore scooped tone 9 Treble Control Controls the high frequencies of the guitar tone making your guitar sound brighter when increased Note The tone network is highly interactive and altering one control can change the shape of the sound in relation to the other tone controls Experimentation is the best way to achieve yo
7. and all played their part From Pete Townshend Eric Clapton and Jimi Hendrix to Jeff Beck and Paul Kossoff the list of great tone players who pioneered the use of the natural distortion from these amps reads like a who s who of guitar players Our re issues of these models are as faithful as possible to the originals in terms of looks and tone Hand crafted in the UK these superb units feature finger jointed cabinets of birch plywood hand welded chassis s hand wired potentiometers and valve bases and the highest quality PCBs and componentry would like to wish you every success with your new amplifier and welcome you to the family of great players who use the classic Marshall tone a WARNING Important safety instructions WARNING THIS APPARATUS MUST BE EARTHED PLEASE read this instruction manual carefully before switching on B ALWAYS use the supplied mains lead if a replacement is required please contact your authorised Marshall Dealer C NEVER attempt to bypass the fuses or fit ones of the incorrect value D DONOT attempt to remove the amplifier chassis there are no user serviceable parts Refer all servicing to qualified service personnel including replacement of fuses and valves Servicing is required when the apparatus has been damaged in any way such as when the power supply cord or plug 15 damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been
8. d be used to turn the amplifier on and off during breaks in a performance Also upon full power down always disengage the Standby Switch prior to the main Power Switch item 1 3 Indicator The Indicator will be lit when your amplifier is on and will not be lit when the amplifier is switched off 4 Presence Control Adds higher frequencies to the guitar tone creating crispness and bite Turning this up will make the sound more cutting and present 5 Bass Control Controls the amount of low frequencies or bottom end in your tone 6 Middle Control Dictates the middle register of the amplifier Turning this up will make your guitar sound fatter Conversely reducing the amount of middle in your tone will result in a sharper and thinner guitar sound for amore scooped tone TREBLE HIGH TREBLE 4 6 4 6 4 6 4 6 4 6 INPUTS SAMI 0 10 0 10 0 10 0 10 0 10 10 0 LOUDNESS 1 LOUDNESS 2 7 Treble Control Controls the high frequencies of the guitar tone making your guitar sound brighter when increased Note The tone network is highly interactive and altering one control can change the shape of the sound in relation to the other tone controls Experimentation is the best way to achieve your desired sounds 8 High Treble Loudness 1 Controls the overall output level of Channel 1 Note This channel is voiced for a higher treble response than Channel 2 9 Normal Loudness 2 Co
9. ected on the amp matches the total impedance of the speaker cabinet s being used For example if the amp is running into a single 16 Ohm cab the amp should accordingly be set to 16 Ohms If running into two 16 Ohm cabs the amp should be set to 8 Ohms If running into two 8 Ohm cabs the amp should be set to 4 Ohms Failure to comply with these points will result in damage to the amplifier Your amp should be completely powered down before the selector is turned CONNECT SPEAKERS BEFORE USE 117V 60Hz TLE 230V 175 Watts T3 15A 117V amp 3 4 gt 6 4 HT Fuse The correct value of H T fuse is specified on rear of the amplifier Please refer to Important Safety Instructions page 2 5 Mains Input Your amp is provided with a detachable mains power lead which is connected here The specific mains input voltage rating that your amplifier has been built for is shown on the back panel Before connecting for the first time please ensure that your amplifier is compatible with your electricity supply If you have any doubt please get advice froma Qualified person Your Marshall dealer will help in this respect 6 Mains Fuse The correct value of mains fuse is specified on the rear of the amplifier Please refer to Important Safety Instructions page 2 10 a bY EDT
10. exposed to rain or moisture does not operate normally or has been dropped NEVER use amplifier damp wet conditions No objects filled with liquids should be placed on apparatus G ALWAYS unplug this apparatus during lightning storms or if unused for long periods of time H PROTECT the power cord from being walked on or pinched particularly at plugs convenience receptacles and at the point where they exit from the apparatus I D NOT switch the amplifier on without a loudspeaker connected J ENSURE that any extension cabinets used of the correct impedance gt Note This equipment has been tested and found to comply with the requirements of the EMC directive Environments E1 E2 and E3 EN 55103 1 2 and the Low Voltage directive in the E U D EUROPE ONLY Note The Peak Inrush current for the 1987X is 26 amps The Peak Inrush current for the 1959SLP is 38 amps The Peak Inrush current for the 1962 Bluesbreaker is 26 amps The Peak Inrush current for the 2245 JTM45 is 26 amps gt CAUTION Any changes or modifications not expressly approved by the party responsible for compliance may void the users authority to operate the equipment gt Note It is recommended that all audio cables with the exception of the speaker lead used to connect to the 1987X 1959SLP 1962 Bluesbreaker and the 2245 JTM45 are of a high quality screened type These should not exceed 10 metres in length
11. gh voltage required by the output valves to pass signal and hence produce sound 15 applied To prolong valve life the Standby Switch alone should be used to turn the amplifier on and off during breaks in a performance Also upon full power down always disengage the Standby Switch prior to the main Power Switch item 1 3 Indicator The Indicator will be lit when your amplifier is on and will not be lit when the amplifier is switched off 4 Presence Control Adds higher frequencies to the guitar tone creating crispness and bite Turning this up will make the sound more cutting and present 5 Bass Control Controls the amount of low frequencies or bottom end in your tone 6 Middle Control Dictates the middle register of the amplifier Turning this up will make your guitar sound fatter Conversely reducing the amount of middle in your tone will result in a sharper and thinner guitar sound for amore scooped tone TREBLE HIGH TREBLE NORMAL 4 6 4 6 4 6 4 6 4 6 0 10 0 10 0 10 0 10 0 10 LOUDNESS 1 LOUDNESS 2 7 Treble Control Controls the high frequencies of the guitar tone making your guitar sound brighter when increased Note The tone network is highly interactive and altering one control can change the shape of the sound in relation to the other tone controls Experimentation is the best way to achieve your desired sounds 8 High Treble Loudness 1 Controls the overall output
12. level of Channel 1 Note This channel is voiced for a higher treble response than Channel 2 9 Normal Loudness 2 Controls the overall output level of Channel 2 Note Channel 2 is voiced for normal response 10 Input Jack Connects the guitar to Channel 1 Note Though the first input of the first channel is the input that most guitarists use don t be afraid to experiment Some guitar players prefer to mix the two channels together by connecting a short screened patch lead between the second input of Channel 1 and the first input of Channel 2 If you then plug your guitar into the first input of Channel 1 item 10 you can mix the different tonal characters of each channel for greater flexibility See diagram 11 Input Jack Connects the guitar to the lower sensitivity input on Channel 1 12 Input Jack Connects the guitar to Channel 2 13 Input Jack Connects the guitar to the lower sensitivity input on Channel 2 SS ENERGIE ELECTRIQUE DAN GEREU BYPASS CONNECT SPEAKERS BEFORE USE OUTPUT 100 WATTS RMS LEVEL BYPASS RETURN SEND WARNING RISK OF HAZARDOUS ENERGY ENERGIE ELECTRIQUE DAN G EREU 4 m Bypass 71 SPEAKERS CONNECT SPEAKERS BEFORE USE OUTPUT 50 WATTS RMS LEVEL BYPASS RETURN SEND 1 Level Provides two different loop levels to suit the type of effects connected to the series effects loop The higher level 4dBV suit
13. ns input voltage rating that your amplifier has been built for is shown on the back pane Before connecting for the first time please ensure that your amplifier is compatible with your electricity supply If you have any doubt please get advice froma Qualified person Your Marshall dealer will in this respect 7 Mains Fuse The correct value of mains fuse is specified on the rear of the amplifier Please refer to Important Safety Instructions page 2 2245 TS MAINS STANDBY PRESENCE BASS MIDDLE MK r ON ON 1 Power Switch On Off Switch for mains power to the amplifier Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved 2 Standby Switch The Standby Switch is used in conjunction with the Power Switch item 1 to warm up the amplifier before use and to prolong the life of the output valves When powering up the amplifier always engage the Power Switch item 1 first This allows the application of the voltage required to heat the valves to their correct operating temperature After about 2 minutes when the valves are up to the correct temperature the Standby Switch can be engaged Upon doing this the H T High Tension which is the high voltage required by the output valves to pass signal and hence produce sound is applied To prolong valve life the Standby Switch alone shoul
14. ntrols the overall output level of Channel 2 Note Channel 2 is voiced for normal response 10 Input Jack Connects the guitar to Channel 1 Note Though the first input of the first channel is the input that most guitarists use don t be afraid to experiment Some guitar players prefer to mix the two channels together by connecting a short screened patch lead between the second input of Channel 1 and the first input of Channel 2 If you then plug your guitar into the first input of Channel 1 10 you can mix the different tonal characters of each channel for greater flexibility See diagram 11 Input Jack Connects the guitar to the lower sensitivity input on Channel 1 12 Input Jack Connects the guitar to Channel 2 13 Input Jack Connects the guitar to the lower sensitivity input on Channel 2 RISK OF HAZARDOUS ENERGY AVIS ENERGIE ELECTRIQUE DANGEREUSE H T FUSE MAINS INPUT MAINS FUSE SPEAKERS MANUFACTURED BY MARSHALL AMPLIFICATION PLC BLETCHLEY MILTON KEYNES ENGLAND S 1 2 Loudspeaker Outputs These are for connection to an external load i e speaker cabinet s See item 3 Please refer to Important Safety Instructions page 2 3 Output Selector Matches the amplifier s output to the load impedance With all valve amplifiers it is imperative that the amp is connected to a load whilst in operation and that the impedance sel
15. s compatible with your electricity supply If you have any doubt please get advice from a qualified person Your Marshall dealer will help in this respect 10 Mains Fuse The correct value of mains fuse is specified on the rear panel of the amplifier Please refer to Important Safety Instructions page 2 11 H T Fuse The correct value of H T fuse is specified on the rear panel of the amplifier Please refer to Important Safety Instructions page 2 T g J gt 1962 Bluesbreaker MAINS STANDBY SPEED INTENSITY PRESENCE BASS 1 Power Switch On Off Switch for mains power to the amplifier Please ensure the amplifier is switched off and unplugged from the mains electricity supply before being moved 2 Standby Switch The Standby Switch is used in conjunction with the Power Switch item 1 to warm up the amplifier before use and to prolong the life of the output valves When powering up the amplifier always engage the Power Switch item 1 first This allows the application of the voltage required to heat the valves to their correct operating temperature After about 2 minutes when the valves are up to the correct temperature the Standby Switch can be engaged Upon doing this the H T High Tension which is the high voltage required by the output valves to pass signal and hence produce sound 15 applied To prolong valve life the Standby Switch alone should be used to turn the
16. s rack processors and the lower level 10dBV suits floor pedals 2 Bypass This switch completely bypasses the circuitry involved in the effects loop to maintain absolute tonal integrity 3 4 Effects Loop To increase the flexibility of your amplifier further you may choose to add external effects The Effects Loop allows direct connection of either floor pedals or rack processors with the level control item 1 providing the correct operating level Usually effects involving distortion or Wah Wah would not go through the loop but between the guitar and amp input Time or modulation based effects such as Chorus Delay and Reverb are best suited to the loop The signal is sent out from the amplifier to the input of your effects processor pedal from socket 4 Effects Send then from the output of the processor pedal is returned into the amp via socket 3 Effects Return 5 6 Loudspeaker Outputs These are for connection to an external load i e speaker cabinet s See item 7 Please refer to Important Safety Instructions page 2 7 Output Selector Matches the amplifier s output to the load impedance With all valve amplifiers it is imperative that the amp is connected to a load whilst in operation and that the impedance selected on the amplifier matches the total impedance of the speaker cabinet s being used For example if the amp is running into a single 16 Ohm cab the amp should accordingly be set to 16 Ohms W
17. ur desired sounds 10 Volume Controls the overall output level of Channel 1 Note This channel is voiced for a higher treble response than Channel 2 11 Volume II Controls the overall output level of Channel 2 Note Channel 2 is voiced for normal response 12 Input Jack Connects the guitar to Channel 1 Note Though the first input of the first channel is the input that most guitarists use don t be afraid to experiment Some guitar players prefer to mix the two channels together by connecting a short screened patch lead between the second input of Channel 1 and the first input of Channel 2 If you then input of Channel 1 item 12 you 2 can mix the different tonal zf each chann greater flexibility See diagram 13 Input Jack Channel 1 14 Input Jack 15 Input Jack Connects the guitar to the lower sensitivity input on plug your guitar into the first characters of each channel for Connects the guitar to the lower sensitivity input on Connects the guitar to Channel 2 Channel 2 WARNING RISK OF HAZARDOUS GY H T FUSE MAINS INPUT MAINS FUSE AVIS ENERGIE ELECTRIQUE DANGEREUSE SPEAKERS TREMELO MANUFACTURED BY FOOTPEDAL MARSHALL AMPLIFICATION PLC BLETCHLEY MILTON KEYNES ENGLAND 1 Footpedial J ack For connection of the supplied footswitch to allow tremao to be switched on and off Note The tremeo effect will only work when playing through
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