The Marshall Joe Satriani Head JVM410HJS is the amp that everyone has been waiting for. For two long years rumour and speculation have bounced around the industry but finally it’s here! Based closely on Marshall’s Flagship JVM410 amp, the Satriani JVM410HJS does defer on some key features specificed by Satriani: the 4 indepedent reverb controls (one for each channel) have been replaced by 4 independent noise gates so you can always have the perfect gating for the amount of filth dialed in! Another key addition is the ‘Mid Shift’ which voices the OD1 and OD2 channels to Joe Satriani’s signature sound.
The Clean channel is based on a Marshall 6100’s green mode with increasing amounts of gain for orange and red modes. While the Crunch channel sees the introduction of AFD circuits to the base JVM circuits. Finally the two identically voiced OD channels are a little less gritty than on the stock JVM to allow for smooth transitions between modes
Here’s What Marshall Say ABout The JVM410HJS Joe Satriani Head:
Marshall’s R&D engineers set out to work incredibly closely with Satriani, the latter having a very clear idea of how his own Marshall should sound. After various trials and experiments which even involved Satch using prototypes during recording and touring, the final version of the JVM410HJS was signed off and the wheels for UK production put in place.
At a first glance, the JVM410JS may look familiar. Taking a more detailed look (and listen) though, will make you realise just how different this amp is from its stock counterpart. So. how is the JVM410HJS different from the JVM410H?
Firstly, and probably most notable is the fact that the four reverb pots from the original JVM410 have now been replaced with noise gates; four noise gates no less, one for each channel and each with their own threshold. Another visible change to the front panel is the addition of a ‘Mid Shift’ button that can be used for both ODI and OD2 channels, shifting the mid character of the sound to that of Joe’s specification. Tone wise, the amplifier is very different: The Clean channel is based on the aforementioned 6100 when on the green mode, with the orange and red modes being hotter variations of that tone too. The crunch channel takes the original JVM410 crunch and adds some of the popular Marshall AFD’ circuit to it. and the OD channels are now both voiced identically, based on the JVM410 ODI but with the gain scaled back slightly and a smoother transition between modes. The mid shift button determines the difference m mid character between the original JVM410 ODI and OD2 tone, moving the mids from around 650khz (Mid Shift off) to around 500kliz (Mid Shift on).
The rest of the JVM410HJS plays out in familiar territory: the amp is still powered by EL34 valves, there are two master volumes the supplied footswitch enables you to switch between channels, modes, 2 master. FX loop and now also the Noise Gates and Mid Shift too. There’s also full MIDI implementation on the unit.
Here are some shots (Some from Musikmesse). Click them for larger versions: