ART Introduces HQ 15 and HQ 31 EqualizersMar 02, 2001 
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Applied Research and Technology introduces the HQ 15 Dual Channel 15-Band and HQ 31 Single Channel 31 Band EQ with FDC (Feedback Detection Circuitry). These graphic EQs features ART’s proprietary FDC Feedback Detection Circuitry. Although it illuminates the band with the greatest energy with the brightest LED, it doesn't fully discriminate between bands and will not get "stuck" on one band when there is no signal. A set of indicators show which of the many EQ bands has the greatest energy. The LED indicators can immediately show which band corresponds to the feedback frequency, allowing the sound engineer to reduce gain in that band to quickly kill the feedback while having a minimal impact on the sound of the live program material. The FDC also acts as a simple spectrum viewer while the concert proceeds showing where the "hot" areas are. During system setup and sound check, the FDC may be used to help identify room and sound system resonances. By increasing the gain until feedback, it is easy to identify those frequencies that are likely to be problems. Reducing the gain in these bands helps tune the sound system, and, remove problem areas before the show begins. It also helps increase the gain margin before feedback. Both units also features constant Q circuitry, 45mm center detent sliders with selectable boost or cut range of 6dB or 12dB, balanced XLR, 1/4" and unbalanced RCA input and output connections, high and low pass filters, analog level metering, variable input controls, signal clip level indicators, ground lift switch, internal power supply and selectable line voltage. The rugged, all-steel chassis occupy 2U rack spaces and is intended for installation into standard 19" equipment racks. For more information, visit their web site at www.artproaudio.com. |
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