Verocity Effects Pedals / JVM-B2 Black Edition Marshall Distortion Overdrive [80]

This product is a 3/4 channel emulator of Marshall JVM410, carefully assembled with hand-selected parts on a custom-layout PCB board, using BELDEN wires and high-grade mica capacitors, and packed in an MXR size. The size of this emulator reproduces the orange mode and red mode of the 3 and 4 channels of the JVM410 high gain channels while using the same EQ and volume.

Because it is a common EQ and volume, the Mid Shift constant needs to be selected between 3 and 4 channels, so a Mid Scoop mode (Don Shari), which is not available on the JVM34, can be added as a byproduct without modifying the circuit.

The faceplate and knobs are black in color, which differs from the standard specification!

ALT" (Adjustable Lead Trimer), which can be turned on and off with the slide switch next to the internal footswitch, makes it possible to attenuate the overall volume with the trimmer when Boost is off, thus enhancing the Boost sound. The internal trimmer can also be turned down to mute when Boost is off. It is recommended that the settings be set roughly by aural sensation. The effect is that when the Boost LED is lit, the sound will be loud.

To set up: 1. turn off Boost and set the volume to the desired position; 2. turn up the slide switch to get the trimmer effect; 3. check the volume difference while turning the slide switch on and off; 4. turn down the slide switch to get the trimmer effect; 5. turn down the slide switch to get the trimmer effect; 6. turn up the slide switch to get the trimmer effect; 7. * Operate the trimmer with extreme care to avoid applying excessive force. When the ALT is on, the lower LED will not turn off in conjunction with the trimmer when Boost is off in Bypass mode, but will light up at a low intensity. The higher the intensity, the lower the volume.

The Vero City High gain series is not designed to narrow the variable range in order to have unlimited sound possibilities. It is possible to design the pedal to suppress these oscillations, but this would significantly narrow the range of the sound. The oscillation is not a malfunction, as it is a noise and does not cause the unit to malfunction. Please be assured that it is not a cause of malfunction. When using high gain, noise that cannot be removed by design may be noticeable. In this case, we recommend adding a noise gate from another manufacturer immediately after the Emulation Pedal. The input jack can be unplugged to mute the unit (it does not turn off the power). The jack can be replaced without damaging the amplifier or speakers to which it is connected.

The output jack has a special function. When plugged in normally, the jack can be connected to the clean channel of an amplifier.

By half-plugging it in, the impedance can be changed so that it can be connected to the Return of a guitar amplifier. Half-insertion can also be used to achieve impedance matching in switching systems. Please note that the half-insertion may be compatible with the amplifier and shield of each company, so please find the best setting by yourself. When half-plugged, it has outputs corresponding to the Send output (bottom) and the Preamp output (top) of the JVM410. Please make the initial setting of the internal SW according to the connection destination.
Accessories: Box, Manual

* The image is a sample.