Hollywood 24CX-3, 24CX-4, 24CX-2 owner manual TDM Option Cards

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TDM Option Cards

The TDM 24CX series crossovers have internal connectors for option cards. A variety of different option cards is available from TDM. Plugging a card into the connector inserts the circuitry on the card between a crossover section output and the output of the unit. The most common card to use for this application is the high-pass filter card. This card is used on the low- frequency section of the crossover to remove subsonic frequencies from the output. This helps remove stage rumble and wind noise, and also helps prevent speaker damage. Another popular option is the parametric equalizer card. Each card has two fully parametric equalizer bands that can be inserted on any crossover output. The cards are installed internally, so once they are set up, they are under the cover and their settings cannot easily be changed. This is an advantage in situations where you don’t want the settings changed, but it is an obvious disadvantage in cases where the settings will change often. In these situations, an external filter or equalizer is recommended. For information about all of the available option cards, contact your vendor or

call TDM (see Contacting TDM).

© 2003 TDM Audio, Inc.

Electronic Crossover Owner’s Manual

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Contents TDM Read Before Using Table of Contents Introduction Crossover FundamentalsSignal Source Power Amplifier Passive Crossover Shows a typical active crossover configuration Crossover TerminologyHow Crossovers Work Filter Frequency Response Curve24 dB per Octave Filter Curve Three-Way Crossover Response Using the Security Cover Mounting the Unit in a RackHooking Up the Crossover What You’ll NeedMaking Adapter Cables Basic Hook-Up Two-Way Operation 24CX-2 or 24CX-4Three-Way Operation 24CX-2 or 24CX-4 Three-Way Operation 24CX-3 Four-Way or Five-Way Operation 24CX-4Operating the Crossover Front Panel ControlsAdjusting the Crossover Frequencies Three-Way Control MeaningsUsing the CD Horn Boost Checking the HookupAdjusting the Output Levels Adjusting the Input LevelsTDM Option Cards Optional Output Limiters Troubleshooting and Support No Signal OutputDistortion Excessive Noise Hertz Hum or BuzzContacting TDM Specifications 24CX-2, 24CX-4