User manual M-AUDIO BASS MANAGEMENT

[. . . ] You will only need to take advantage of the Bass Management functions when using smaller satellite speakers that cannot reproduce low bass frequencies; If your main speakers are large enough to properly output low frequencies, Bass Management is not required and should remain off. The M-Audio Bass Management system also includes several additional features that many users will find handy. These features include subwoofer loudness limiting (when adding rerouted main signal to the LFE, subwoofer phase inversion, and time-alignment on all channels. Each section of the Bass Management system is covered in detail below. 2 Bass Management The "General Settings" section sets global parameters for the Bass Management system. < n/Off ­ Bass Management is only active when the "On" radio button is O selected. [. . . ] < 180° ­ This option inverts the phase of the + signal sent to the subwoofer. Check the box to invert the subwoofer's signal; leave the box unchecked to let the signal pass unaffected. ·To set the +180° checkbox: First, leave the box unchecked and listen to your sound system. Next, check the box and continue listening. If you notice that the bass level increases when you check the box, leave the box checked. If the bass level decreases, then leave this box unchecked. If you hear no difference between the two settings, your speakers are placed in a way in which the setting of this box will not affect your monitoring system. TIP: Check this box for correct monitoring of Dolby Digital soundtracks. Leave the box unchecked while monitoring DTS encoded material, or if subwoofer output has been boosted at another point in the subwoofer's signal path. TIP: When making any adjustments to the Boost controls, keep an eye on the Clip indicator. If it turns red, adjust the Boost slider setting until the subwoofer output no longer clips. 3 Bass Management The "Speaker freq. Response" section allows you to configure crossover points and routing options for your sound system. < rossover Freq (in Hz) ­ The Bass Management system C re-routes low frequency sounds from main speaker channels to the subwoofer. These radio buttons allow you to set the "crossover" frequency at which the signal is split and sent to either the main channels (for use with satellite speakers) or subwoofer. For example, if "80" is selected (as shown in the picture), your interface will output frequencies above 80Hz to the specified main channels (where a smaller satellite speaker may be connected) while frequencies below 80Hz will be sent to the subwoofer. If the frequency is set to "Off, " no bass re-routing will occur and the entire sound spectrum will be sent to the main channels. < ub Mode (LFE+Main) ­ When checked, the bass S management system routes frequencies below your Crossover Freq (in Hz) selection to both the main channels and the subwoofer. In other words, frequencies below the crossover points are not removed from the main speakers before being sent to the subwoofer. This increases the bass output of your sound system since bass will be duplicated at the main speakers and the subwoofer. TIP: Consult your speaker's documentation to see if an optimum crossover point is specified for bass managed systems. If the documentation does not include this information, locate the speaker's frequency response rating (most documentation will list this information in a "Technical Specifications" section) and set your crossover point just above the speaker's low frequency limit. For example, if the speaker's frequency response rating is "65 Hz ­ 20 kHz +/- 3 dB" this means that the lowest frequency that the speaker is designed to produce is 65 Hz. [. . . ] NOTE: If the subwoofer channel is routed to the front speakers, the "Crossover Freq. " for the front speakers must be set to "Off" for you to hear the low frequency sounds. © 2007 Avid Technology, Inc. Product features, specifications, system requirements and availability are subject to change without notice. Avid, M-Audio and Bass Management are either trademarks or registered trademarks of Avid Technology, Inc. All other trademarks contained herein are the property of their respective owners. 5 M-Audio USA 5795 Martin Rd. , Irwindale, CA 91706 M-Audio Germany Technical Support Kuhallmand 34, D-74613 Ohringen, Germany Technical Support web: tel (pro products): tel (consumer products): fax (shipping): www. m-audio. com/tech (626) 633-9055 (626) 633-9066 (626) 633-9032 e-mail: tel fax: support@m-audio. de +49 (0)7941 - 9870030 +49 (0)7941 98 70070 Sales e-mail: info@m-audio. de +49 (0)7941 98 7000 +49 (0)7941 98 70070 www. m-audio. de tel: fax: Sales e-mail: tel: fax: sales@m-audio. com 1-866-657-6434 (626) 633-9070 www. m-audio. com Web M-Audio Canada Web M-Audio U. K. Floor 6, Gresham House, 53 Clarenden Road, Watford WD17 1LA, United Kingdom 1400 St-Jean Baptiste Ave. [. . . ]