Mackie MR5 Owner's Manual - Page 6

MR5 REAR PANEL DESCRIPTION This is where you connect your signal to the monitor, and make adjustments to the frequency response of the speakers to match the monitor's location and your room's environment. 1. SIGNAL INPUTS There are three types of input connectors: XLR (balanced), 1/4-inch (balanced), and RCA (unbalanced). Since all three of them are connected together electrically, do not connect more than one signal at a time to the input jacks. • The XLR connector and 1/4-inch TRS (tip-sleeve-ring) connector accept a balanced signal while the RCA con- nector accepts an unbalanced signal. A balanced signal provides better noise rejection and is the preferred method, especially if using a cable longer than 20 feet (6 meters). • The 1/4-inch TRS jack can also accept an unbalanced signal from a 1/4-inch TS (tip-sleeve) plug. The connectors are wired as follows (per the AES/IEC standard): XLR TRS RCA Hot (+) Pin 2 Tip Tip Cold (-) Pin 3 Ring - Shield (Ground) Pin 1 Shield Shield See Appendix B: Connectors, for more information on these connectors. 2. INPUT LEVEL The MR5 expects a line-level signal at its input. Use this control to adjust the sensitivity of the input section according to the signal strength at its input. • The MR5 is designed to operate with a +4 dBu signal when the INPUT LEVEL control is in the MAX position (in other words, wide open). • Refer to the QUICK START section on page 5 for the level-setting procedure. 3. HIGH FREQUENCY FILTER The HIGH FREQ switch tailors the overall highfrequency response by ±2 dB at 5 kHz and above. Leave this switch in the "0 (NORMAL)" position unless: • You want to subtly brighten or darken the sound of the speakers. • Perhaps you have hearing loss caused by too many nights in front of a double Marshall stack. • You just like to mix on the bright side or dull side. If your mixes consistently sound dull or dark when you listen elsewhere, this usually indicates that your monitors are too bright, relative to your normal hearing. A bit less high-frequency energy usually fixes this, and you can force the mix in this direction by reducing the high-frequency output of the monitors by using the -2 dB position of the switch. RCA (UNBALANCED) INPUT XLR (BALANCED) TRS (BALANCED) SETTINGS HIGH FREQ FILTER -2dB 0 +2dB (NORMAL) LOW FREQ FILTER INPUT OFF MAX LEVEL 0 +2dB +4dB (NORMAL) ON CAUTION: REPLACE WITH THE SAME FUSE AND RATING. DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE.  MR5