User manual SABINE TRUE MOBILITY WIRELESS SYSTEM SWM3000

[. . . ] OPERATING GUIDE Version 4 Models: SWM3000 SWM1600 WARNING : DON'T WORRY! Every other wireless microphone manual has to warn users about the perils of feedback with wireless mics. Welcome to Sabine True Mobility Wireless Systems, where the only feedback we get is how good it sounds! Declaration of Conformity DECLARATION OF CONFORMITY Application of Council Directive: 73/23/EEC and 89/336/EEC Standards to which conformity is declared: EN 60065: 1993 EN 60950: 1992 EN 55103-1: 1997 EN 55022: 08:94 + a1:05:05 EN 55103-2: 1997 ETS 300445 (VHF) ETS 300442 (UHF) Manufacturer's Name: Manufacturer's Address: Sabine, Inc. 13301 Highway 441 Alachua, FL 32615 USA Wireless microphone/receiver True Mobility Wireless Systems Type of Equipment: Model No. : Serial No. : Year of Manufacture: 1999 following I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive and Standard. Place: Alachua, Florida, USA Signature: Date: January 4, 2002 Full Name: Doran Oster, Sabine President Table of Contents Table of Contents SECTION ONE : INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1. 1 Using this Operating Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] An EQ would need more than 10, 000 sliders to be equivalent to your FBX. With FBX technology, your microphone will finally sound loud enough, everyone in the audience will understand each word, and feedback will be far less likely to make an unwelcome and unexpected visit. -10 dB cut at 500, 630, 1K, 1. 25K, 1. 6K &2K Hz If the graphic EQ really had 1/3 octave filter widths, the frequency response curve would vary 6 dB between sliders. This would ruin the sound. Graphic EQs usually use one-octavewide overlapping filters that provide much smoother frequency response curves. Notice that the overlapping filters add together to cut -16 dB when the sliders are only pulled down -10 dB. Figure 6a - Graphic-EQ effect on program B1-SWM-Op-Guide-v4. pmd 030108-hto 19 Section SIX : FBX Feedback Exterminator 6. 2 Two FBX Advantages There are two reasons why the True MobilityTM system from Sabine is able to eliminate feedback while maintaining a high quality audio signal. Direct Hit on Feedback!Feedback 6. 2. 1 Advantage #1 The grey area shows you how First, an FBX filter represents a direct hit much of your on feedback!The FBX targets feedback 1/3-octave program you without taking a big chunk out of your sound. EQ filter would lose using a Tests prove that a single 1/3-octave EQ 1/3-octave filter to control feedback slider pulled down 12 dB removes almost half the power going to the speakers over a two-octave range. Furthermore, you can't place a graphic EQ filter precisely on the Figure 6b - FBX Filters a Direct Hit on Feedback ringing frequency. If you pull down multiple sliders in a normal setup, you end up with giant frequency holes in your music (see Figure 6b). On the other hand, FBX micro-filters are 10 times narrower--you get back up to 90% of the power you lose with a graphic EQ!EXAMPLE: In Figure 6c, a PA system was set up using a microphone, mixer, FBX Feedback Exterminator®, power amp and two speakers. The system's gain was raised until the FBX removed nine feedback points. The EQ was adjusted while the system gain was raised to the same level achieved with the FBX. The frequency response curves of each device were then plotted. Figure 6c - FBX Filters vs Graphic EQ Filters Note how much more of the program is eliminated using an EQ--whereas only feedback is eliminated using FBX filters. Advantage #2 The second reason True MobilityTM systems are able to remove feedback while maintaining high quality audio signal is due to the placement of the signal processing in the input chain of the microphone signal. Many times signal processing (compression and equalization) is placed after the output stage of a mixer, meaning it is applied to a combination of inputs mixed together into one output and passed through the processor. Particularly in the case of equalization and feedback control, one consequence of such a signal path is that filtering applicable to just one microphone is applied to others in the same mix bus. In other words, unnecessary filtering (albeit very narrow filtering in the case of an FBX filter) may be applied to microphones that have different feedback frequencies than some of the filters set. Placing the filtering and other signal processing in the input signal path is a concept called Targeted Input Processing. It means each microphone so equipped will have customized, unique signal processing applied--and no unneeded processing. Sabine True Mobility Wireless Systems give you - Targeted processing for each microphone - Increased mobility - Quiet, fast and easy setup of FBX filters (Our Fastest FBX setup mode!) 20 Section Six : FBX Feedback Exterminator Constant Q vs Proportional Q Filters Constant Q Proportional Q It is common to describe a filter's quality factor, or "Q, " as the center frequency of the filter divided by the filter width (in Hertz) measured at the -3dB point. Filters that have the same Q, or width, at the -3dB point regardless of the filter's cut or boost are called Constant Q filters (see p. 14, Figure 6a). [. . . ] The serial number affixed to the product is altered, defaced or removed; or e. In the event of a defect in material and/or workmanship covered by this limited warranty, Sabine will repair the defect in material or workmanship or replace the product, at Sabine's option; and provided, however, that, in any case, all costs of shipping, if necessary, are paid by you, the purchaser. THE WARRANTY REGISTRATION CARD SHOULD BE ACCURATELY COMPLETED, MAILED TO AND RECEIVED BY SABINE WITHIN FOURTEEN (14) DAYS FROM THE DATE OF YOUR PURCHASE. Bring the defective item to any Authorized SABINE DEALER and present therewith the ORIGINAL PROOF OF PURCHASE supplied to you by the AUTHORIZED SABINE DEALER in connection with your purchase from him of this product. [. . . ]