User manual LEXICON MC-12 V4 EQ REV 0

[. . . ] MC-12 Controller Version 4 EQ User Guide 3 Oak Park Bedford, MA 01730-1413 USA Tel 781-280-0300 Fax 781-280-0490 www. lexicon. com Customer Service Telephone 781-280-0300 Sales Fax 781-280-0495 Service Fax 781-280-0499 email csupport@harmanspecialtygroup. com Product Shipments 16 Progress Road Billerica, MA 01821-5730 USA Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, Surround EX, and the double-D symbol are trademarks of Dolby Laboratories. Manufactured under license from THX Ltd. patent numbers 5, 043, 970; 5, 189, 703; and/or 5, 222, 059. [. . . ] Sets the AUDIO CONTROLS menu ROOM EQ parameter to ON and ROOM EQ LEVEL parameter to MEDIUM. These parameters can now be used to activate and deactivate room correction and to control the amount of room correction applied to the loudspeakers. Refer to Adjusting Room Correction (page 2-21). ROOM EQ DISTANCES Calibrates loudspeaker distances. Calibrates loudspeaker distances within ±0. 5 foot (0. 15m) of the physical distance between the listening position(s) and the loudspeaker. Provides a comparison between original and calibrated loudspeaker distances, allowing for selection of the desired distances. OUTPUT LEVELS Calibrates loudspeaker output levels. Calibrates individual loudspeaker output levels within ±0. 5dB of each other. Calibrates overall loudspeaker output levels within ±3. 0dB of THX reference levels (75. 0dB). Provides a comparison between original and calibrated loudspeaker output levels, allowing for selection of the desired output levels. 2-4 Version 4 EQ User Guide Configuring the MC-12 for V4 EQ Figure 2-1. Microphone input connectors on MC-12 rear panel. CONNECTING THE MICROPHONES Automatic calibration requires the microphones included in the Lexicon Microphone Kit, which is available at authorized Lexicon dealers. Performing automatic calibration with other microphones will produce unknown results. LFE 3 1 MICROPHONE INPUTS 2 3 TRIGGER OUTPUTS MAIN AUDIO O 4 CAUTION · The microphones included in the Lexicon Microphone Kit require careful handling. Dropping or otherwise physically abusing the microphones may cause errors during use or irreparable damage to the microphones. Read and observe the documentation included with the Lexicon Microphone Kit to ensure optimal microphone performance. Never make or break microphone input connections unless the MC-12 is powered off using the rear panel power switch or placed in standby mode using the front panel or remote control standby button. Connect the microphones included in the Lexicon Microphone Kit to the microphone input connectors on the MC-12 rear panel (shown in Figure 2-1). Make sure microphone cable plugs are fully inserted for solid connections. · Note: During the microphone check, the MC-12 refers to the microphones as 1, 2, 3, and 4 based on the microphone input connector to which the microphone is connected. Label the microphones for troubleshooting purposes. To connect the microphones: 1. Make sure the MC-12 is powered off using the rear panel power switch or placed in standby mode using the front panel or remote control standby button. 3. Power on the MC-12 or take the MC-12 out of standby mode. 2-5 Configuring the MC-12 for V4 EQ POSITIONING THE MICROPHONES FOR THE MICROPHONE CHECK Lexicon MC-12 Controller Proper microphone placement is essential to achieve the desired automatic calibration results. Refer to the microphone placement examples that begin below to properly position the microphones for the microphone check. PROPER Figure 2-2. Proper microphone placement for the microphone check. The microphones SHOULD be positioned: Rear Left as close together as possible relatively centered between and equidistant from the front left and right loudspeakers in a clear line-of-sight path with the loudspeakers in a location unobstructed by furniture and other fixtures in a location where echoes will not obscure calibration noise signals at least 2 feet (0. 61m) from all loudspeakers and walls within 30 feet (9. 14m) of all loudspeakers Side Left Rear Right Front Left Microphone Side Right Center Subwoofer Front Right The listening room to the left shows proper microphone placement for the microphone check. The microphones are clustered in an unobstructed location that is relatively centered between and equidistant from the front left and right loudspeakers. 2-6 Version 4 EQ User Guide Configuring the MC-12 for V4 EQ IMPROPER Figure 2-3. Improper microphone placement for the microphone check. The microphones SHOULD NOT be positioned: Rear Left Side Left in separate locations in locations scattered throughout the listening room in an obstructed line-of-sight path with the loudspeakers in a location obstructed by furniture and other fixtures within 2 feet (0. 61m) of loudspeakers and walls more than 30 feet (9. 14m) from any one loudspeaker Rear Right Front Left Microphone Side Right Center Subwoofer Front The listening room to the left shows improper microphone placement for the microphone check. [. . . ] Refer to the MC-12 User Guide for additional information. This step does not occur during the ROOM EQ procedure. Guide for additional information. 2-20 Version 4 EQ User Guide Configuring the MC-12 for V4 EQ ROOM EQ ON, OFF Note: Once automatic calibration has been performed, use the BASS PEAK LIMITERS menu to set amplitude limits for low-frequency signals sent to the Main Zone audio output connectors labeled Subwoofer L/R and LFE and redirected to other output connectors. Activates and deactivates the room correction that was applied to the loudspeakers during the EQ DISTANCES LEVELS or ROOM EQ procedure. When set to ON, the MC-12 applies room correction to the loudspeakers based on the ROOM EQ LEVEL parameter setting. When set to OFF, the MC-12 does not apply room correction to the loudspeakers. This parameter has no affect until the EQ DISTANCES LEVELS or ROOM EQ procedure is performed. ADJUSTING ROOM CORRECTION Performing the EQ DISTANCES LEVELS or ROOM EQ procedure enables the AUDIO CONTROLS menu ROOM EQ and ROOM EQ LEVEL parameters, which can be used to activate and deactivate room correction and to control the amount of room correction applied to the loudspeakers. ROOM EQ LEVEL MAX, HIGH, MEDIUM, LOW Controls the amount of room correction applied to the loudspeakers when the ROOM EQ parameter is set to ON. [. . . ]