Lexicon MC-1 owner manual AC-3 Effects and Parameters

MC-1 Digital Controller

AC-3 Effects and Parameters

LFE MIX LEVEL allows separate level attenuation of the LFE channel, which is ultimately mixed to the subwoofer output. As the bass from as many as five other channels is added to the LFE, it can significantly raise subwoofer output levels — and create the risk of damage to a system. Careful adjustment of this parameter will allow you to achieve proper tonal balance and reduce the risk of damage.

MASTER LEVEL adjusts the output level of the two-channel downmix. This control should be set to +5dB unless the LFE is very heavy, inwhich case the level should be reduced.

RE-EQUALIZER equalizes the left, center, and right channel outputs to match the overall frequency balance of the original recording. Without this re-equalization, many films and some television programs will sound too bright.

REAR DELAY OFFSET is an additional delay added to the rear channels when listening to LOGIC 7 and MUSIC SURROUND. This delay increases the apparent size of the listening space by increasing the rear delay time. Feel free to experiment to find the setting that works best.

REAR LEVEL controls the volume level of the rear speakers. Although we have selected a default value, the correct setting will vary with each recording, the room, and your personal taste.

SIDE LEVEL controls the output level of the side speakers. Use this control in conjunction with SURROUND LEVEL to achieve the optimum balance between the side and rear speakers.

SUBWOOFER LVL boosts or cuts the subwoofer output level. Although the normal subwoofer level is set during the calibration procedure, with some recordings it may be desirable to increase or decrease this deep bass level.

SURROUND EX (available as of software version 4) extracts and reproduces the additional rear channel mixed into SURROUND EX encoded soundtracks. This parameter is automatically set to ON when both SIDE and REAR speakers are selected in the SPEAKER CON- FIGURATION menu, and will not operate unless SIDE and REAR speakers are selected. SURROUND EX decoding can be engaged during playback of non-SURROUND EX encoded 5.1 material, how- ever, the information delivered to the rear channels may not be pleasing.

SURROUND MIX allows independent adjustment of the level of the surround channels. Many AC-3 encoded soundtracks sound better when down-mixed to two channels with the surround level increased by approximately 2-3dB.

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