Marshall expands JVM series of amplifiers with five 2-channel JVM2 models

At the 2008 Summer NAMM show, Marshall Amplification introduced five JVM2 Amplifiers – two heads and three combos. Equipped with 5 x 12AX7s, 2 x EL34s (50-watt) or 4 EL34s (100-watt), these amps join Marshall’s JVM4 models to create a JVM family of the most versatile and highest gain all-valve Marshall amplifiers to date. Models in the JVM2 series are JVM210H 2-channel 100W Head, JVM205H 2-channel 50W Head, JVM210C 2-channel 100W 2x12" Combo, JVM205C 2-channel 50W 2x12" Combo, and JVM215C 2-channel 50W 1x12" Combo. Like the JVM4 amps, these models feature-two independent, footswitchable channels (Clean/Crunch and Overdrive) and three footswitchable modes per channel effectively deliver six distinctly different Marshall voices that range from shimmering clean to extreme, high-gain distortion. A straightforward, familiar front panel provides six LED switches and 16 controls – Volume, Bass, Middle, Treble, Gain and Reverb for each channel, two footswitchable Master Volumes plus Resonance and Presence. In addition to a Channel/Mode selection switch for each channel, the amps also feature front-panel switches for Reverb (on/off), Master Volume section (1 or 2) and FX loop (on/off). Onboard logic ensures swift and silent switching, plus it remembers the last position of each front panel switch in all six modes, even after the amp has been powered down. Both channel/mode LEDs are tri-colored to indicate which of the three modes is selected in each channel. Marshall’s four-way foot-controller can memorize a player’s front-panel switch settings. Five LEDs reflect every front panel switch setting, including the channel mode being used, via tri-colored indicator LEDs for both channels. This patent-pending technology allows single front-panel switches or entire setups (Channel/Mode, Reverb, FX Loop and Master Volume switch settings) to be assigned to any one of the foot-controller’s four switches. The foot-controller connects to the amp via a standard guitar cable. The reverb is routed in parallel and mixed with the direct signal by means of a valve. When the reverb is engaged, no degradation of the direct signal occurs, and when off, it is removed from the circuit. The reverb circuit has also been designed to avoid abrupt cut-offs, allowing the tail to decay naturally when switching or changing from channel to channel. All switching can be done via MIDI, and each JVM amp’s rear panel houses MIDI IN and MIDI THRU jacks. Two FX loops (footswitchable series/parallel and parallel) and a speaker-emulated XLR output are also provided. All combos feature genuine Celestion speakers, and, just like the JVM410C, the JVM210C and JVM205C 2x12"s both house one Vintage speaker and one Heritage speaker. The Heads can be partnered with any Marshall 4 x 12" cabinet.