Mackie 32.8Bus Owner's Manual - Page 23
GENERAL, Tip/Ring/Sleeve TRS Plug
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The equalizer on the 8•Bus Series combines several different types of EQ into five different sections. The HI MID EQ section is a fully parametric equalizer. This means all the significant parameters can be varied, as you can see in Fig- ure 1. The boost or cut of this section, through a range of ±15dB, 2 LO MID VARIABLES is set with the top knob. The center fre- quency is dialed in with the middle knob, and can be set LO MID Variable 1: Boost/Cut anywhere between 500Hz and 18kHz. Finally, the bandwidth of the bell-shaped response curve around the selected frequency (also somewhat inaccurately referred to as a ratio known as Q) can be selected with the lower knob. The range is from as wide as 3 octaves to as narrow as 1/12 octave. Leave it at the center detent if you are unfamiliar with the bandwidth feature. This setting will give you a semi-parametric type of EQ. The 8•Bus console's set of three HI-MID controls (boost/cut, frequency center and bandwidth) is VERY powerful in its effects. Rarely if ever will you need more than a few dB of boost and cut or, as noted above, will you want to stray from the NORMAL (2 octave) bandwidth until you gain some experience recording and mixing. The LO MID EQ section is called a semi-parametric equalizer, because the bandwidth is not adjustable (Figure 2). The frequency range is 45Hz to 3kHz and the bandwidth is fixed at 2 octaves. LO MID Variable 2: Band Center Fig. 2 SLEEVE TIP Tip/Sleeve (TS) Plug SLEEVE TIP TIP SLEEVE RING SLEEVE SLEEVE RING TIP TIP Tip/Ring/Sleeve (TRS) Plug RING TIP SLEEVE Male XLR Female XLR COMMON 2 HOT COLD 3 1 COMMON 1 COLD 3 2 HOT 1 3 2 Balanced XLR Connectors COMMON COLD HOT SLEEVE TIP SLEEVE TIP RCA Plug used on some outboard gear TIP (RETURN) "Y" insert cable for connecting signal processors' inputs and outputs to 8•Bus insert RING (IN) TIP (OUT) RING TIP (RETURN) (SEND) TIP (SEND) FROM PROCESSOR OUTPUT TO PROCESSOR INPUT Figure 4: Common Connectors TO MIXER CHANNEL INSERT GENERAL INFO 21