Mackie ProFX8v2 Owners Manual - Page 18

ProFX8v2 • ProFX12v2 • ProFX16v2 • ProFX22v2 • ProFX30v2 Stereo Graphic EQ, Main Meters and more! 39. Stereo Graphic EQ 37 39 40 41 38 This 7-band graphic equalizer adjusts the main mix output. It affects the line-level outputs, but not the headphones, tape outputs, or the USB output. In the ProFX16v2, ProFX22v2 and ProFX30v2, the control room and phones are post-EQ and post-main fader. In the ProFX8v2 and ProFX12v2, the phones are pre-EQ and pre-main fader. 42 This EQ may be used for a monitor mix instead of the main mix if the main mix/mon 1 switch is engaged. It may also be quickly bypassed using the EQ in/bypass switch. Each slider allows you to adjust the level of its 43 frequency band, with up to 15 dB of boost or cut, and no change in level at the center (0 dB) position. 37. 48V Phantom Power Switch Most modern professional condenser mics require The frequency bands are: 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz and 8 kHz. 48V phantom power, which lets the mixer send low- The EQ section comes before the main mix fader current DC voltage to the mic's electronics through the and meters. As with the channel EQ, just take it easy. same wires that carry audio. (Semi-pro condenser mics There is a large amount of adjustment, and if you often have batteries to accomplish the same thing.) are not careful, you can upset the delicate balance "Phantom" owes its name to an ability to be "unseen" of nature. Although it may not seem cool to actually by dynamic mics (Shure SM57/SM58, for instance), turn down controls, with EQ it is often the best option. which don't need ­external power and aren't affected by Turn down the offending frequency range rather than it anyway. boosting the desired range. You may use it to reduce the Press this switch in if your microphone requires level of some frequency bands where feedback occurs. phantom power. (Always check the position of this switch before connecting microphones.) The accompanying LED will illuminate red to indicate that phantom power is active. This is a global switch 40. Main Mix / Mon 1 Switch that affects all mic channels' XLR jacks at once. This switch allows you to choose if the stereo Never plug ­s­ ingle-ended (unbalanced) micro­phones, or ribbon mics into the mic input jacks if phantom power is on. Do not plug instrument outputs into the mic XLR input jacks with phantom power on, ­unless you know for certain it is safe to do so. Be sure the main mix graphic EQ is used for the stereo left and right main mix or if it is used for monitors. For example, there may be times when the graphic EQ may be used wisely in the monitor mix to reduce feedback in the monitors from nearby microphones. This only affects the monitor 1 output. fader is turned down when connecting microphones to the mic inputs when phantom power is turned on, to prevent pops from getting through to the speakers. 41. EQ In / Bypass Switch 38. Power LED This LED will illuminate green when the mixer is turned on, as a reminder of how on it really is. If it is not on, then it is off, and the mixer becomes a rather nice weight for keeping your morning newspaper from blowing away in the wind. This switch allows you to quickly engage or disengage the stereo graphic EQ. This may be used for quick checks of your EQ settings, or to shorten the signal path if you do not need to use the EQ. If it does not turn on, make sure the power cord is correctly inserted at both ends, the local AC mains supply is active, and the power switch is on. 18 ProFX8v2 • ProFX12v2 • ProFX16v2 • ProFX22v2 • ProFX30v2