Setting Output Levels, THX Configuration

MC-1 Digital Controller

System Configuration

dBr
+1.000
0.0
-1.000
-2.000
-3.000
-4.000
-5.000
-6.000
-7.000
-8.000
-9.000
-10.00
-11.00
-12.00
-13.00
-14.00
-15.00
-16.00
-17.00
-18.00
10	20	50	100	200	500	1k
			Hz

Subwoofer Frequency Response

The low pass filter attenuates high frequencies at 24dB per octave. The values given are for the 6dB point.

Subwoofer Output

Use of the subwoofer output is specified here. Selecting YES, then pressing SELECT allows you to display and adjust the crossover frequency for the subwoofer output. All summing and filtering is per- formed in the digital domain. You can select three different crossover points (40, 80 or 120Hz) for the subwoofer. Although you can bypass the crossover (OFF) and run a full range output if your subwoofer has an internal crossover, it is generally best to use the crossover in the MC-1.

NO mutes the subwoofer output and disables the Subwoofer Level parameter. For any 5.1 channel input, selecting NO routes the LFE (.1 channel) to any front, side or rear speakers set to LARGE.

THX Configuration

SPEAKER SETUP MENU

CUSTOM CONFIG

THX CONFIG

SURROUND EX CONFIG

Selecting THX CONFIG from the SPEAKER SETUP menu automati- cally sets the speaker selections to the traditional configuration for THX listening. This configuration automatically sets REARS to NONE and all of the filters to 80Hz. These settings are not adjustable.

SURROUND EX Configuration

SPEAKER SETUP MENU

CUSTOM CONFIG

THX CONFIG

SURROUND EX CONFIG

Selecting SURROUND EX from the SPEAKER SETUP menu (available in software Version 4) automatically sets the speaker selections for a THX SURROUND EX setup with two side and two rear speakers, and with all filters set to 80Hz. These settings are not adjustable.

Setting Output Levels

SETUP MENU

INPUT CONFIG

SPEAKER CONFIG

OUTPUT LEVELS

LISTENER POSITION

LOCK SETTINGS

When MC-1 input and output levels are set properly, the entire system will be calibrated to play films at the level intended by the director. Setting the output levels is easy with a Sound Pressure Level (SPL) meter. Using the MC-1’s internally generated calibration signal, adjust the level of each output to the same relative level (75dB "C" weighting).

	OUTPUT LEVELS MENU		Adjust with ▲ or ▼

INTERNAL NOISE TEST
			Noise signal sent sequentially to all speakers
EXTERNAL NOISE TEST			Pro Logic effect w/current input as source
SUB PEAK LIMIT		+15dB	-5 to +35dB
MUTE LEVEL		-30dB	-10dB, -20dB, -30dB, -40dB, FULL MUTE
PWR-ON VOL		-30dB
			LAST LVL, -80 to +12dB
Z-2 PWR-ON		-30dB	LAST LVL, -80 to +12dB