Mackie 24.8Bus Owner's Manual - Page 13

METERING Bus Meters 1-8 Directly above each bus fader is a peak-reading meter displaying the bus output level. Zero (0) on the meter references a level of +4dBu (1.23 volts RMS) at the output jack. Note: If the -10dBV switches are engaged at the Subgroup output jacks, then zero (0) on the meter references a level of -10dBV at those outputs. Note: When any SOLO switch is engaged, the SUBMASTER meters will be extinguished in order to divert your attention to the SOLO/MAIN meters (discussed below). MAIN OR SOLO LEVEL Meters The MAIN OR SOLO LEVEL meters display the L/R Main Mix levels and are similar to the bus meters, with these exceptions: +22dBu unbalanced. (You don't want these to ever go on. If they do, try pulling down the L/R master fader a little.) AUX SENDS The six auxiliary send outputs each have a master level control. Like any level control, turning the knob turns the volume up or down. However, the gain of the AUX Sends has been optimized at the unity (center detent) setting and should not need adjustment. The output of each bus is available at its AUX Send Out jack in the jack panel above. Additionally, AUX Sends 3 & 4 and AUX Sends 5 & 6 are fed as stereo pairs to the two PHONES SOURCE switching matrices, for headphone cueing purposes. LAYOUT AND FUNCTION • If a SOLO button is depressed, the meters display the output of the soloed OO OO OO OO OO OO OO OO signals; if not, the meters show the level of the signal selected by the MONITOR SOURCE switches. In other words, you are always metering what you're listening to. IMPORTANT: When the console 1 U +15 2 U SOLO +15 LEVEL 3 U SOLO 5 U 1 U +20 2 U LR SOLO +20 LEVEL 3 U SOLO LR BALANCE 1-2 3-4 5-6 7-8 L/R MIX ASSIGN 1-2 3-4 5-6 7-8 L/R MIX ASSIGN 5 U OO OO OO OO is in SOLO mode, zero (0) on the +15 4 U SOLO +15 6 U SOLO +20 4 U SOLO PHONES 1 PHONES 2 ASSIGN L/R MIX +20 6 U SOLO SOLO/MAIN meters references the actual +15 LEVEL SOLO +15 LEVEL SOLO +20 LEVEL SOLO PHONES 1 PHONES 2 ASSIGN L/R MIX +20 LEVEL SOLO internal operating level, or 0dBu (.775v). If you have just one signal in SOLO AUX SENDS SOLO STEREO AUX RETURNS the main L/R path and you SOLO it, U U OO OO the meter level will jump up 4dB. MONITOR MONITOR L/R MIX AUX SEND 1 Don't be alarmed. If you're mixing on OO +15 MIX-B OO PHONES OO PHONES STUDIO OO +15 LEVEL OO LEVEL LEVEL LEVEL LEVEL the L/R buses, that's what you'll MIX-B MIX-B MIX-B AUX SEND 2 meter. If you're checking a tape playback, that's what you'll meter. ASSIGN TO L/R MIX SOLO AUX SEND 3/4 SOLO AUX SEND CNTRL RM 2-TK 3/4 RUDE SOLO LITE TAPE SUB MASTERS When the meters are following the monitors (not in SOLO), zero (0) on the meter references a level of AUX SEND 5/6 AUX SEND 5/6 EXTERNAL MASTER MIX B/MONITOR PHONES 1 EXTERNAL SOURCE PHONES 2 EXTERNAL SOURCE MONITOR MONO SOURCE OPERATING LEVEL INDICATOR AND SOLO PHONES & STUDIO TALKBACK +4dBu (1.23 volts RMS) at the main + L/R outputs, just like the submaster 22 + + + + + + + meters. 10 10 10 10 10 10 10 10 Note: The solo levels displayed on 7 7 7 7 7 7 7 4 4 4 4 4 4 4 7 4 the meters are PRE-solo level, 2 2 2 2 2 2 2 2 thus giving you an accurate showing of the total level of the 0 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 soloed signals.This is also the way 7 7 7 7 7 7 7 7 10 10 10 10 10 10 10 10 to set initial console levels. See the 20 20 20 20 20 20 20 20 discussion of the SOLO function, earlier in this section. • Additional red LEDs per side at the top of the meter show output clipping at +28dBu balanced, 30 30 30 30 30 30 30 40 40 40 40 40 40 40 L -R - L -R - L -R - L -R 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 30 40 L -R MAIN OR SOLO LEVEL 11