QSC UF-3 - Manuals - manualsarea.com

Page 3 - Architecture; UF-3 UNIVERSAL FILTER

1 I. DESCRIPTION The UF-3 is an embedded dual-channel universal filter accessory for use with select QSC power amplifiers. Compatible amplifier models and lines,both current and discontinued, include: • All PLX, two-channel CX, and two-channel DCA models (with a BSC-3 or BSC-5 BusCard installed) • A...

Page 4 - Operation; , the amplifier in which the; Bypassing the Filtering; Channel 1; Programming the Low-Pass Filter; Figure 2—UF-3 Circuit board jumper and resistor network locations

2 III. PROGRAMMING THE UF-3 The UF-3 circuit board has six 3-pin headers and four SIP resistor network sockets (see Figure 2). All are used for programming the module. Thecircuitry for the two channels is identical, so the headers and sockets are divided between them: those designated by a three-dig...

Page 5 - Programming the High-Pass Filter and CD Horn Equalization

3 Programming the High-Pass Filter and CD Horn Equalization To use either the high-pass filter or the constant-directivity horn equalization, or both, set the jumper onJx02 across pins 2 and 3, which are the lower two pins on their header. If, however, you do not wish touse either one and want to by...

Page 6 - IV. TYPICAL APPLICATIONS; Subsonic Filter; Use only these three digits to; Figure 5—UF-3 as a subsonic filter

4 IV. TYPICAL APPLICATIONS Subsonic Filter Subsonic filters are commonly used in sound installations to filter out rumbles and other inaudible or unwanted low frequency signals and toprotect speaker drivers. Vented speaker enclosures in particular often exhibit a phenomenon in which the acoustical d...

Page 7 - CD Horn boost; Subsonic and Ultrasonic Filter; Figure 6—UF-2 as an ultrasonic filter

5 Ultrasonic Filter An ultrasonic filter is useful for minimizing RF interference, oscillations, leakage or aliasing from digital devices, and other signals that are toohigh in pitch to hear but may wreak havoc in an amplifier system. Program settings: 1. Set the jumper on Jx01 to enable the low-pas...

Page 8 - -Way Active Crossover; Steps 2 through 5 configure Channel 1.; Amp; HF Driver; Figure 9—UF-2 as a 2-way active crossover

6 2-Way Active Crossover This configuration routes the frequencies below a particular frequency to amplifier Channel 1, which shall drive the low-frequency speakers, andthe frequencies above to Channel 2, which shall drive the high-frequency speakers. Using the UF-3 as a crossover requires that you ...

Page 9 - BusCard; Multi-way Crossover System

7 Ch. 2 Ch. 1 UF-3 PowerLight 1.6 HVX Ch. 2 Ch. 1 UF-3 PowerLight 3.4 (parallel mode) Ch. 2 Ch. 1 UF-3 PowerLight 4.0 (bridged mode) Ch. 1:Ch. 2 LP @ 150 Hz; HP @ 20 HzBypassed UF-3: Subwoofer Ch. 1:Ch. 2 LP @ 1000 Hz; HP @ 150 HzLP @ 1000 Hz; HP @ 150 Hz UF-3: Woofers Ch. 1:Ch. 2 LP @ 5 kHz; HP @ 1...

Page 10 - Tools and materials you will need:; Installing the UF-3 on a BusCard; Input card; Figure 11—Location of the input card

8 Tools and materials you will need: Soldering ironDesoldering iron or other suitable desoldering equipmentPhillips screwdriverWire cuttersRosin-core solder CAUTION: • Do not use desoldering braid because it may damage the solder pads on the BusCard or input board, and it also might not adequatelyre...

Page 11 - VI. WARRANTY AND DISCLAIMERS; Disclaimer

9 Continue preparing the PC board by removing solder from all 22 in-line socket holes. Once this is done, you are ready to install the UF-3. With the input panel facing you and the component side of the UF-3 board facing away from you, carefully insert the header pins of the UF-3 fullyinto the socke...