Marshall JVM205H (Head)

Completely in all-tube technology, without semiconductors in the signal path, the JVM205H brings a sound quality to the stage that is second to none! Its two channels each offer three modes, which provide a selection of a total of six independent basic sounds with their own gain structure by connecting tube stages. By pressing the respective channel selection button several times, the other modes are selected, with the LED changing from green to orange to red and then back to green. By cleverly switching on the active tube stages (modes), completely independent basic sounds are created - a wide selection of the JVM410H basic sounds served as a template, which makes the two-channel device just as stylistically versatile as the four-channel devices in the series. Thanks to its logical division of the controls on the front panel and back, the two-channel device is of course even more manageable and extremely easy to use. Two channels with six basic sounds - in puristic all-tube technology! Why is it so important that there are no semiconductors built into the signal path of a tube amplifier? We hear this question quite often - and the easiest way to answer it is to compare sounds. The magic word is dynamics! In all JVM amplifiers, the guitar signal can pass through the amp's tone control without serious losses in dynamics, as its level is processed entirely using tube technology and all switching processes are relay-controlled. The JVMs therefore have no buffer or catch-up amplifier stages that could "slow down" the original guitar tone with their semiconductor components and coupling capacitors. This also means that the effect paths and the reverb are not only switchable, but are also mixed passively even when they are activated. This technical solution is more expensive to produce, but it pays off: Even with extreme gain settings, the guitar sound remains differentiated, does not tend to become "muddy", and even nuanced changes in the pickup combination remain audible in a differentiated manner. No compromises when it comes to features and usability! The two-channel JVM series offers exactly the same connection peripherals as the JVM4xxx models. Ergo, a separate effect, reverb and master configuration can be saved here for each basic sound. As a result, each channel has its own reverb control, there are two master volumes and two effects paths - and the switching states of these functions are automatically saved when you exit the respective mode or channel. The (patented) programmable four-way footswitch is delivered free of charge with the JVM205H and can be used as desired to save complete presets as well as to copy any switching functions on the front panel. By the way, despite its extensive functions and LED display for the active sounds, it is connected with a normal jack cable. Alternatively, complete presets (i.e. a complete preselection of these switching functions..) for 128 program change commands can be saved and called up via MIDI, which makes the use of external multi-effects devices much easier. Studio-quality reverb... All JVM amplifiers are equipped with studio-quality digital reverb, which is routed parallel to the amplifier's original signal and mixed in a separate tube stage. When the reverb is activated, the original signal remains completely unaffected - and when it is deactivated, it is completely switched out of the signal path. Both channels have their own reverb level control. The reverb's circuitry was designed to prevent the reverb signal from suddenly breaking off, so that it can die out naturally when changing channels or turning off the reverb. Some guitarists have reservations about digital reverb systems because many digital effects sound unnatural and sterile. Therefore, an enormous amount of effort was put into the sound design of the JVMs' digital reverb in order to achieve the depth and warmth of a classic spring reverb system using digital technology. The advantage of this design is obvious: In tough road use, the reverb system is now completely insensitive and the mixing using a tube stage preserves the overtone spectrum, the shine and the dynamics that make up a typical tube reverb. Proven Marshall power amplifier technology... A 50 watt power amplifier saturates at a lower volume than a 100 watt power amplifier - an argument for many guitarists to choose the less powerful model. The power amplifier of the JVMs is based on the proven power amplifier technology that was already used in the JCM800 model 2205 and the 1987 head - and is responsible for the typical, legendary Marshall sound, but has been adapted in small details to the enormous basic sound spectrum of the JVMs. The power amplifier circuit also includes the presence and resonance controls, which influence the response of the speakers and the overall sound of the amplifier. The JVM also offers a silent recording mode: If the standby switch is switched off, the power amplifier is deactivated - but the preamplifier and connection peripherals of the amplifier are still fully available.