Mackie ProFX16 Owner's Manual - Page 23

48. INT FX MUTE Switch and LED When engaged, the internal effects processor is muted, and its output will not appear on the main mix or monitor mix. The adjacent mute LED will illuminate as a reminder that the effects are muted. When power is first applied, this LED will illuminate and the FX will be muted for about 10 seconds while the little FX gerbils inside settle down. If this switch is not engaged, then the internal effects are set free and may be added as required to the main mix and/or monitor mix. 49 50 USB OUT MAIN SUB 1-2 TAPE USB 2-TRACK RETURN 54 L R SUB 1 dB 10 55 5 L R SUB 2 dB 10 5 5U1 OO +15 LEVEL L R SUB 3 dB 10 5 U U U 5 5 5 10 10 10 20 20 20 30 30 30 40 40 40 50 50 50 60 60 60 52 BREAK (MUTES ALL CH) L R SUB 4 dB 10 5 U 5 10 20 30 40 50 60 OO 53 MAX CR /PHONES MAIN dB 10 56 5 U 5 10 20 30 40 50 60 OO OO OO OO OO Main & Subs Mix, USB Out, 2-Track Return, and more! 49. USB OUT Switch This switch allows flexibility on the recordable signals. The default switch configuration (disengaged) allows the main L-R mix to be recorded for convenient stereo mixes of the show. Engaging the switch routes subgroups 1-2 over the USB connection to your favorite DAW software for an alternate 2-track recording. 50. 2-TRACK RETURN TAPE / USB Switch This determines if the 2-track return gets its signal from the RCA "tape" inputs [34] (switch disengaged) or USB (switch engaged). 51. 2-TRACK RETURN LEVEL This knob controls the overall level to the mains of the tape (RCA) or USB, depending on the position of the 2-track return tape/USB switch [50]. This knob's level ranges from off, through unity (center detent position), on up to 15 dB of extra gain (fully clockwise). 52. BREAK Switch and LED This important "take-a-break" switch quickly mutes all the microphones and line-level inputs when the band is between sets. This will prevent protestors or rogue karaoke singers from storming the stage at the interval. The monitor send [26] and FX send [27] are not affected. If there is no sound coming out of the system, be sure to check this switch first. The adjacent break LED will come on as a reminder that the channels are muted. It is possible to play the stereo RCA tape inputs [34] in the main stereo mix or play audio coming in from the computer via the USB inputs. For example, a soothing CD may be played while the band is off stage. 53. CR/PHONES As one might expect, this knob controls the levels of both the stereo control room and the headphones. Make sure that this knob is fully off [counter-clockwise] before selecting or adding a new source. Owner's Manual 23