Manuale d’uso / di manutenzione del prodotto 24CX-4 del fabbricante Hollywood
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24CX-2 24CX-3 24CX-4 ELECTRONIC CROSSOVER OWNER’S MANUAL TDM AUDIO INC. 7270 BELLAIRE AVE. NORTH HOLLYWOOD, CA 91605 (818) 765-6200 TDMAUDIO.COM TDM A U D I O.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 2 I MPORTANT ! *** Read Before Using *** CAUTION : The following must be observed to prevent malfunctioning and/or possible equipment damage.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 3 Table of Contents INTRODUCTION ................................................................................................................... ...................................
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 4 Introduction hank you for purchasing the TDM 24CX series el ectronic crossover . These units are made from the finest components and engineered to exacting standards. Precision components are used in all critical circuitry for the finest soni c quality and perform ance.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 5 Signal Sour ce Pow er Amplifie r Lo w T ransd ucer Mid T r ansduc er Hig h Tr ansd ucer Passive Crossover Figure 1 - Typical Passiv.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 6 • External Power: Passive crossovers are simply inserted between the am p and the speaker components.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 7 result in a greater overall ef ficiency of the system by making sure a band of frequencies is always reproduced by the speaker components that are most ef ficient at reproducing it.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 8 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 380 500 620 740 860 980 1100 1220 1340 1460 1580 1700 1820 1940 2060 2180 2300 2420 2540 266.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 9 The crossover frequency of 1000 Hz is where the two lines on this graph cr oss over each other . In crossovers with three or more output bands, there are two filters for each of the middle bands.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 10 Mounting the Unit in a Rack DM 24CX series crossovers can be mounted in any standard 19” rack. Each TDM 24CX series crossover takes up one rack space. T o ma ke m ounting easier , lay the rack on its back with the equipment front panels facing up.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 11 Hooking Up the Crossover nce your TDM crossover is installed in the rack, you are ready to hook it up to your equipment. Of course, the method used to hook up any crossover depends on how it will be used.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 12 It is very important that both pins 1 and 3 are wired to the sleeve. Som e adapters leave pin 3 floating, and with TDM crossover units this will cause problem s.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 13 channels to link them together and form one th ree-way channel. This switch m ay be found on the rear of the unit between the channels. It is rece ssed into the chassis through a small, square hole, and you might need to use a small screwd river to press it.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 14 Operating the Crossover nce you have mounted your TDM 24CX series cro ssover in a rack and connected all of the cables, the unit is ready for operation.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 15 Channel One (or Three) Input Level Input Level Channel One (or Three) Crossover Frequency High-T o-Mid Crossover Frequency Channel.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 16 Checking the Hookup It is critical that the crossover is connected and adjusted correctly before use. T o avoid speaker damage, we recomm end checking your hookup and settings using the following method.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 17 Adjusting the Output Levels S tart with the input levels at 0 dB (unity gain). After the rest of the system has been dialed in (amplifier gains and output levels), the input levels can be fine tuned.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 18 TDM Option Cards he TDM 24CX series crossovers have intern al connectors for option cards.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 19 Optional Output Limiters he TDM 24CX series crossovers can be ordered with output lim iters. These let you set the maximum level for each crossover output. Limiters are used to help protect speaker components and ears from dam age by excessive levels.
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 20 Troubleshooting and Support his section details various problems that you might encounter when using your crossover , and the possible causes and solutions. It also tells how to contact TDM when you need service or support for your 24CX series crossover .
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 21 is the cause of the distortion. If none of the si gnal processing units in the chain is causing the distortion, then either it is present in the signal source, or there is a problem with your speaker system, amplifiers, or crossover .
© 2003 TDM Audio, Inc. Electronic Crossover Owner’s Manual Page 22 two dif ferent grounds. The problem is m ost often caused by a single piece of equipment grounded to two dif ferent power sources that are located some distance apart.
Specifications Frequency Response Low Frequency Output +0-0.5 dB 10 Hz High Frequency Output +0-1.0 dB 20 kHz Total Harmonic Distortion R L > 2 kohms Low Frequency Output <0.01% THD High Frequency Output <0.02% THD Maximum Output Level R L > 2 kohms +21 dBu (6.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Hollywood 24CX-4 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Hollywood 24CX-4 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Hollywood 24CX-4 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Hollywood 24CX-4 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Hollywood 24CX-4, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Hollywood 24CX-4.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Hollywood 24CX-4. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Hollywood 24CX-4 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
