Manual de instrucciones de Shure AUDIO PROCESSOR WITH FEEDBACK REDUCTION DFR22

Manual de instrucciones del aparato Shure AUDIO PROCESSOR WITH FEEDBACK REDUCTION DFR22

Aparato: Shure AUDIO PROCESSOR WITH FEEDBACK REDUCTION DFR22
Categoría: Mezlador de música
Fabricante: Shure
Tamaño: 0.7 MB
Fecha de añadido: 10/20/2013
Número de páginas: 13
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Resumen del contenido incluido en la página 1

Model DFR22
Installation Guide
DFR22
Audio Processor
with Feedback Reduction
200 Shure Incorporated
Printed in U.S.A.
27B8813 (Rev. )

Resumen del contenido incluido en la página 2

! IMPORTANT SAFETY INSTRUCTIONS ! 1. READ these instructions. USE only with a cart, stand, tripod, bracket, or table 12. 2. KEEP these instructions. specified by the manufacturer, or sold with the 3. HEED all warnings. apparatus. When a cart is used, use caution when 4. FOLLOW all instructions. moving the cart/apparatus combination to avoid 5. DO NOT use this apparatus near water. injury from tip-over. 6. CLEAN ONLY with dry cloth. 13. UNPLUG this apparatus during lightning storms or when un

Resumen del contenido incluido en la página 3

ENGLISH DESCRIPTION The DFR22 Audio Processor with Feedback Reduction is a 2–input, 2–output digital audio processor. It is designed to equalize sound system response, provide dynamics processing and alignment delay, and automatically detect and control acoustic feedback. A built-in 2 X 2 matrix mixer allows either or both inputs to be routed to either or both outputs, with additional controls for levels and polarity. The DFR22 is ideal for installed sound reinforcement applications, such as ho

Resumen del contenido incluido en la página 4

ENGLISH OVERVIEW Front Panel DFR22 FRONT PANEL Figure 1 1. INPUT/OUTPUT Level Meters: 5. BYPASS DFR FILTERS Button and LEDs. Press these but- tons to suspend feedback reducer operation and remove feed- – CLIP. Illuminates at 3 dB below clipping level. back filters from the audio path. When a Bypass LED illumi- –0 VU. +4 dBu, –10 dBV; software selectable. 0 dB is equal to nates, feedback reduction is bypassed on the corresponding +4 dBu by default. If the input or output sensitivity is channel.

Resumen del contenido incluido en la página 5

ENGLISH DEFAULT PRESETS The DFR22 comes with three factory-configured presets. Although Preset 2: Provides a stereo feedback reducer. Signal going into a computer is required to configure the DFR22’s equalizers, dy- each input is analyzed independently, but the feedback reducer ap- namics processors, delays, and crossover, you can use the DFR22 plies the same notch filters to each channel. As with Preset 1, Row “out of the box” as an automatic feedback reducer, without connect- A of the DFR filt

Resumen del contenido incluido en la página 6

ENGLISH DFR22 Theory Feedback Reduction No sound system (microphones + mixing/signal processing + power amplifiers/loudspeakers + room acoustics) has an absolutely flat fre- quency response. When the level of a sound system is increased, the frequencies at which peaks occur will be the first to exceed the feed- back threshold. The DFR22 attenuates these frequencies, flattening the response of the sound system. The system can then operate at a higher overall level. The DFR22 includes Shure’s pate

Resumen del contenido incluido en la página 7

ENGLISH POWER AND INITIALIZATION Power Mains Connections Use the supplied power cable to connect the DFR22 Audio Proces- NOTE: The DFR22 Audio Processor is designed to operate contin- sor to an active 100–240 Vac power source, as shown in Figure 6. uously. Therefore, there is no power on/off switch. The Power LED on the front panel will glow green when power is applied. .. Power LED DFR22 POWER CONNECTION Figure 6 Initialization Once power is applied, the DFR22 Audio Processor takes approxi- m

Resumen del contenido incluido en la página 8

ENGLISH 12 dB and 18 dB Output Pads Each DFR22 output has a 12 dB pad and an 18 dB pad that can be NOTE: The Output meters indicate the signal level present at the engaged through the software interface. Use these pads when con- digital-to-analog converters. The 12 and 18 dB pads act upon the necting the DFR22 to lower-level inputs. They cannot be used to signal after the digital-to-analog converters, so the meters do not prevent clipping at the output stage of the DFR22 reflect the pads. COMPU

Resumen del contenido incluido en la página 9

ENGLISH DIP Switch Settings for Networked Devices Table 2. DEVICE ID SETTINGS Assign each Shure Link device a unique Device ID Number, using DIP Switches 1–4, as shown in Figure 13. Refer to Table 2 for De-   Device Device Device Device vice ID settings. ID ID   IMPORTANT: Each Shure Link device MUST have a unique 0     8     Device ID number. 1     9     2     10     3     11     4     12 

Resumen del contenido incluido en la página 10

ENGLISH Mute Control Connections For mute control, use either a latching switch or a momentary switch. The total resistance of the cable run from the switch to the DFR22 should be less than 100 ohms. Figure 15 shows an example of how to connect either a latching switch or a momentary switch to the Control Input pins to mute an input or an output. Ground Switch (momentary or latching) MUTE CONTROL PIN CONNECTIONS Figure 15 Gain Control Connections For gain control, use either a potentiometer or t

Resumen del contenido incluido en la página 11

ENGLISH SPECIFICATIONS Frequency Response Certifications 20 Hz to 20 kHz ±1 dB cULus. Listed and cUL Listed to UL 6500 and CSA E60065. Au- Dynamic Range thorized under Verification provision of FCC Part 15 as a Class B 110 dB minimum, A-weighted, 20 Hz to 20 kHz Digital Device. Sampling Rate This Class B digital apparatus complies with Canadian ICES–003. 48 kHz Conforms to European Union Directives, eligible to bear CE Digital-to-Analog, Analog-to-Digital Conversion marking. Meets European Uni

Resumen del contenido incluido en la página 12

ENGLISH Information to User Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed an

Resumen del contenido incluido en la página 13

SHURE Incorporated http://www.shure.com United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A. Phone: 847-600-2000 U.S. Fax: 847-600-1212 Intl Fax: 847-600-6446 Europe, Middle East, Africa: Shure Europe GmbH, Phone: 49-7131-72140 Fax: 49-7131-721414 Asia, Pacific: Shure Asia Limited, Phone: 852-2893-4290 Fax: 852-2893-4055


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