User manual SAMSON CVALVE

[. . . ] C Class Signal Processors TUBE MICROPHONE/INSTRUMENT PREAMPLIFIER WITH DIGITAL OUTPUT Safety Instructions Caution: To reduce the hazard of electrical shock, do not remove cover or back. Please refer all servicing to qualified personnel. WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. Please read all instructions before operating the unit. [. . . ] The C valve can accept levels from most microphones when the MIC/INST switch is set to the MIC position. When the MIC/INST switch is set to instrument, the C valve can accept signals from instruments or line level sources. Once you set the MIC/INST switch to the proper position, you can use the INPUT GAIN control to adjust the level of your input signal. It is a 1 good idea to start with the level low and raise it up as you need. Be sure to monitor the input LED VU METER and try to set the INPUT GAIN control so that the meter reads +0 to +6dB. If you see the OL LED light you are "Over­Loading" and the sound may become distorted. If this happens, simply back down on the INPUT GAIN control until the OL light stops flashing. 2 LED VU METER ­ Input Level To monitor the signal being presented to the C valve's input, there is a six-segment LED-bar VU meter indicating ­20, -10, -6, 0, +6 and OL (OVER-LOAD). The level displayed on the meter will be affected by the MIC/INST switch so be sure that you have that set to the correct position for your sound source. The LED VU METER features "VU" ballistics, which means it reacts to the signal based on an average level. Use the VU METER when you are setting your initial input level with the INPUT GAIN control. Try to set the INPUT GAIN control so that the meter reads +0 to +6dB. If you see the OL LED light you are "Over­Loading" and the sound may become distorted. If this happens, simply back down on the INPUT GAIN control until the OL light stops flashing. 2 3 ANALOG VU METER - Output Level To monitor the signal being sent from the C valve's OUTPUT, there is an ANALOG VU METER with a scale from infinity to +4dB. The level displayed on the meter will be affected by the MIC/INST switch so be sure that you have that set to the correct position for your sound source. The ANALOG VU METER features "VU" ballistics, which means it reacts to the signal based on an average level. Use the ANALOG VU METER when you are setting your output level using the VOLUME control. Try to set the level so that the meter reads about 0dB. If you see the needle stay all the way to the right, you are "Over­Loading" and the sound may become distorted. If this happens, simply back down on the VOLUME control until the meter reads about 0dB. 3 8 Operating The C valve 4 MIC/INST - Select switch The MIC/INST switch is used to set the operating level of the C valve's input. When using a microphone, set the switch to the "MIC" position, which is selected when the switch is in the out position and the green LED is off. When you press the MIC/INST switch in, the green LED will illuminate indicating that the C valve is ready to accept a signal from an instrument like a guitar or bass guitar. You can also use the INST input to connect a line level device like a keyboard or drum machine. 5 48 VOLT - Phantom Power Switch The C valve provides on-board phantom power supply for powering condenser microphones. 4 5 6 IMPORTANT NOTE: With all phantom power supplies, you can get an annoying POP when you engage the phantom power supply, or when you unplug a cable that has phantom power on it. [. . . ] Insert points are input and output patch points that interrupt the channel or bus signal so that external processors can be connected. Channel insert points are ideal for connecting to when using the C valve to process a single channel like a vocal, bass or guitar. Bus insert points are ideal for compressing groups of instruments like vocals, strings or drums. If you are connecting to a channel's insert points, you may have a single TRS jack for Send & Return. [. . . ]