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.
I. Channels, Modes & Memory Presenting the 4-channel, 100 Watt, all-valve JVM amplifier (JVM410H head or JVM410C 2x12" combo). Its 4 channels boast 3 modes, giving you a total of 12 different modes to choose from - each with its own unique gain structure. Even though its front panel contains a total of 28 control knobs and 8 LED switches, the JVM is simple to understand and operate thanks to its extremely logical front and rear panel layouts.
The Basics Channel Overview ENGLISH MAINS INPUT & FUSE (16) 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 indicated on the back panel. Marshall recommends you always leave a (speaker) load attached to the unit. 2. Ensure that both MASTER VOLUMES on the front panel (6) are set to zero.
Front Panel Operation Channel Section Pressing a channel button has two functions: When pressing in the same channel it cycles the modes: GREEN > ORANGE > RED > GREEN... Each mode remembers the FX, Reverb and Master settings. Example: You are in OD1 ORANGE with FX + REVERB and you press CLEAN. The amp switches to the last Clean mode you had (let's assume it was CLEAN GREEN with REVERB). If you press the OD1 switch you go back to OD1 ORANGE with FX + REVERB.
10. SERIAL / PARALLEL FX LOOP The JVM is equipped with a series / parallel FX loop. Connect your external FX gear input to the JVM SEND jack, and the FX output to the JVM RETURN jack. As described previously, this effects loop can be bypassed from the front panel and the amount of effect can be dialed in with the MIX control. 13. FOOTSWITCH Connect the supplied footswitch using any standard 1/4" jack mono lead.
ENGLISH Technical Specification Power (RMS) Valves Main Guitar - Input Impedance Emulated Output - Level FX Send Level - selectable Weight Size (mm) W, H, D JVM410H Head 100W 5x ECC83 + 4x EL34 470kΩ +4dBu -10dBV, +4dBu 22kg 750 x 310 x 215 JVM410C Combo 100W 5x ECC83 + 4x EL34 470kΩ +4dBu -10dBV, +4dBu 34.5kg 690 x 510 x 265 Me gustaría agradecerte personalmente el que hayas comprado uno de nuestros nuevos amplificadores “JVM”.
9 JVM410H Front panel 6 5 3 1 MASTER REVERB OD1 CLEAN OFF O OD1 MODE FOOTSWITCH/ MIDI PROGRAM 410H 0 10 0 MASTER 2 10 0 MASTER 1 10 0 RVB OD1 10 0 RVB CLEAN 10 0 VOLUME 10 0 BASS 10 0 MIDDLE 10 0 TREBLE CLEAN MODE 10 0 GAIN 10 0 VOLUME 10 0 BASS 0 10 0 TREBLE 10 GAIN (Orange & Red) OD2 MASTER 100W Valve Amplifier 10 MIDDLE CRUNCH REVERB INPUT I ON POWER STANDBY FX LOOP OD2 MODE / SILENT RECORDING 0 10 0 RESONANCE 17 19 8 10 0 PRES
