User manual ART DUAL MP

[. . . ] Ideally, one input per channel should be used at a time. However, because of its design the Dual MP can be hardwired into a rack without having to disconnect the XLR inputs when using the front panel jacks. If no load is placed on the XLR input (no instrument or microphone connected) the front jack will function as if there was nothing connected to the XLR input. Both Dual MP inputs may be used simultaneously. [. . . ] +20dB Gain/ Norm Switch Use the +20dB Gain/ Norm switch to set the gain range of the Input control. When the switch is in the out (Normal) position the gain range is +6 to +40dB. Depressing the switch adds 20dB of gain. With the switch in, the gain range is +26 to +60dB. With most microphone applications you'll find using the Dual MP with the +20dB gain switch in is needed in most situations. Use the setting that best fits your application. **Note: Be sure to turn down or mute the output of the Dual MP when engaging or disengaging Phantom power. Additionally, when disengaging, allow 30 - 45 seconds for the power to completely dissipate. Most microphones will make a sound like air leaking from a tire when phantom power is disconnected, but some can make some very nasty low rumbles and whines as well. **Another Note: Dynamic microphones should not be affected or damaged if they are plugged into a line where Phantom power is present. However, if the mic doesn't need it, don't use it. Phase Switch The Phase switch is provided to reverse the phase of a signal. This switch works on Pins 2 and 3 of the XLR Output jack of the channel. In the Normal position, the signal is in-phase. In the Reverse (or "in") position, Pins 2 and 3 are reversed as the signal is changed to 180 degrees out of phase. In multiple microphone applications, the placement of the microphones can affect the phase of a signal. If two microphones pick up the same signal from different locations, the result can be a hollow or frequency "shifted" sound. In some cases it may sound as if an instrument disappears if it happens to be 180 degrees out of phase. Depressing the Phase switch of one channel can remedy this problem. Likewise, if a microphone cable is wired incorrectly, when used with a properly wired cable the signal will be out of phase. **Note: for single microphone applications switching the phase switch in and out will produce little to no change in the output signal. Special Effects For industrial, metal, or just "flavor" textures experiment with the Dual MP. Cascading the channels can produce overdrive and tube distortion that can add interesting textures when blended with vocals and different instruments. [. . . ] A R T should not be liable for any consequential damages, including without limitation damages resulting from the loss of use. Some states do not allow limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific rights and you may also have other rights which vary from state to state. For units purchased outside the United States, service will be provided by an authorized distributor of A R T products. Service The following information is provided in the unlikely event that your unit requires service. [. . . ]