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ENGLISH From Jim Marshall I would like to thank you personally for selecting one of our new ‘JVM’ amplifiers. Since I started Marshall Amplification in 1962 I have witnessed some incredible breakthroughs and advances in amplifier design technology, such as master volume amps, channel switching, reverb, effects loops, MIDI technology, speaker emulation and digital effects processing, to name just a few. These may all seem commonplace features nowadays but that certainly wasn't always the case. Ho
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ENGLISH Overview I. Channels, Modes & Memory setups can also be saved and recalled to one of For example, you could program a mixture of Presenting the 2-channel, 100W and 50W 128 locations via MIDI. switching functions (in our example switches #1 all-valve JVM amplifiers. Their 2 channels boast and #2 work in Preset Store mode, and #3 plus 3 modes, giving you a total of 6 different modes II. Footswitch (UK patent pending) #4 work in Switch Store mode), so that: to choose from - each with its ow
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ENGLISH The Basics Channel Overview We recommend that you fold out the inside back Marshall recommends you always leave a The JVM’s front panel is divided into 2 main cover of this manual so that diagrams of the (speaker) load attached to the unit. sections: Channels and Master. Each of its amp’s front and rear panels are visible while you channels has 3 modes which are distinguished read. 2. Ensure that both MASTER VOLUMES on the by a different coloured light (green, orange or front panel (5) a
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ENGLISH Front Panel Operation Channel Section Presence and Resonance constitute a powerful To store the current status simply: MIDI operation Pressing a channel button has two functions: power amplifier equaliser, allowing responses Pressing the FOOTSWITCH / MIDI PROGRAM from a ‘^’ shape when they are fully Set the amplifier to FOOTSWITCH PROGRAM switch (3) twice puts the amplifier in MIDI When coming from a different channel it recalls counterclockwise, which is felt as a mid boost, mode (red l
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ENGLISH Rear Panel Operation SERIAL / PARALLEL FX LOOP (12) FOOTSWITCH (15) To confirm the factory reset press OVERDRIVE Hint 2: To have a tuner output muting the The JVM is equipped with a series / parallel FX Connect the supplied footswitch using any MODE switch. amplifier, connect the tuner to the FX send and loop. Connect your external FX equipment input standard 1/4" jack mono lead. Using any other select the Clean channel. Turn the MIX control to the JVM SEND jack, and the FX output to the
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ESPAÑOL Technical Specification - Heads JVM210H Head JVM205H Head Power (RMS) 100W 50W Valves 5x ECC83 + 4x EL34 5x ECC83 + 2x EL34 Main Guitar - Input Impedance 470kΩ 470kΩ Emulated Output - Level +4dBu +4dBu FX Send Level - selectable -10dBV, +4dBu -10dBV, +4dBu Weight 22kg 17.5kg Size (mm) W, H, D 750 x 310 x 215 750 x 310 x 215 Technical Specification - Combos JVM210C Combo JVM205C Combo JVM215C Combo Power (RMS) 100W 50W 50W Unas palabras de Jim Marshall Valves 5x ECC83 + 4x EL34 5x ECC83 +
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3 8 JVM210H / JVM205H front panel 1 2 4 5 6 7 9 10 JVM210H / JVM205H rear panel 11 12 13 14 15 16 17 9 4 JVM210C / JVM205C / JVM215C front panel 10 8 7 6 5 3 2 1 JVM210C / JVM205C / JVM215C rear panel 17 16 15 14 13 12 11
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JVM 2 Channel Block Diagram CLEAN SHAPE CLEAN / CRUNCH GAIN CATHODE CATHODE FOLLOWER CRUNCH VOL FOLLOWER CLN / CR TONE V6:A V6:B V7:A V7:B V8:A V8:B PARALLEL LOOP INPUT LOOP RECOVERY OD VOL V9:A OD TONE OD / GAIN GAIN +4 / -10 MIX SEND RETURN FX LOOP BYPASS EMULATED LINE OUT OUTPUT VALVES (1 & 4 NOT USED IN 50W) REVERB MIXER POWER AMP INSERT V1 V9:B SERIES LOOP BYPASS MASTER 1 PHASE SHIFTER PRE-AMP OUT PRE-AMP OUT V5 V2 / SEND / RETURN SPEAKER OUT MASTER 2 V3 V4 CLEAN / GAIN STAGES CRUNCH CLEAN
