Related Manuals for Art HD 131
Summary of Contents for Art HD 131
- Page 1 HD131 SINGLE CHANNEL 31 BAND 1/3 OCTAVE GRAPHIC EQUALIZER HD215 DUAL CHANNEL 15 BAND 2/3 OCTAVE GRAPHIC EQUALIZER HD231 DUAL CHANNEL 31 BAND 1/3 OCTAVE GRAPHIC EQUALIZER...
- Page 2 IMPORTANT SAFETY INSTRUCTION – READ FIRST This symbol, whenever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure-voltage that may be sufficient to constitute a risk of shock. Read instructions: Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment.
- Page 3 The new ART HD-Series of Precision Graphic Equalizers have been designed and engineered to exceed extremely high standards for audio performance and functionality. These innovative, high-quality equalizers are perfect for virtually any audio application where precision frequency tailoring, reliable performance, rug- ged design and extremely silent processing is of the utmost priority.
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Page 4: General Information
GENERAL INFORMATION Congratulations on the purchase of your new ART equalizer. This professional equalizer is perfect for virtually any audio application where frequency tailoring is needed. It’s features include: constant Q circuitry with accurate center frequencies, selectable 6dB or 12dB range, active balanced and unbal-... -
Page 5: Signal Levels
Microphone or Instrument Inputs for best results. CHASSIS GROUNDING The equalizers are equipped with a rear panel Ground Lift switch. This should normally be set to the Ground position. After set up, if your system exhibits excessive hum or buzzing, the problem may be a due to a ground differential between your equalizer and other equipment in the same system. -
Page 6: Initial Setup
OPERATING INSTRUCTIONS Before starting to equalize your sound system there is some information you should know and proce- dures you should follow. Your equalizer is equipped with a bypass switch. The bypass switch, when activated, lights the bypass LED and cancels all equalization settings while allowing signal to flow directly through the unit at unity gain. - Page 7 FRONT PANEL CONTROLS 1. POWER SWITCH To turn the equalizer ON or OFF, press the upper or lower portion of this button. CAUTION: Always turn on your equalizer BEFORE your power amplifiers are turned on, and always turn off your equal- izer AFTER your power amplifiers have been turned off.
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Page 8: Level Control
Clip Indicator: - This red LED illuminates if any section of the equalizer is near clipping. Oc- casional flickering of this LED is acceptable, but if it remains on more than intermittently you should reduce the output level of the preceding equipment or, if that is not possible, turn down the equalizer’s level control to avoid audible distortion. - Page 9 REAR PANEL CONNECTORS & CONTROLS 8. POWER CORD This cord is used to connect the AC power source to your equalizer. CAUTION: Equipment for USA installation includes a power cord with a three pin polarized plug. DO NOT REMOVE THE CENTER GROUNDING PIN.
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Page 10: Input/Output Connectors
11. INPUT/OUTPUT CONNECTORS 1/4 TRS The TRS (Tip Ring Sleeve) connector is balanced and wired as Tip = High (+), Ring = Low (-), and Sleeve = Ground. The XLR input connector is balanced and wired as Pin 2=High (+), Pin 3=Low (-), and Pin 1=Ground. EURO BLOCK HD131 CAUTION: Only one input option should be chosen for audio connection at the same time. - Page 11 APPLICATIONS Graphic equalizers may be used wherever modification of the frequency contour of a sound system is needed. A graphic equalizer is a solution to any number of sound problems or creative urges. Typical reinforcement application of a two channel equalizer...
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Page 12: Warranty Information
WARRANTY INFORMATION Limited Warranty Applied Research and Technology will provide warranty and service for this unit in accordance with the following warrants: Applied Research and Technology, (A R T) warrants to the original purchaser that this product and the components thereof will be free from defects in workmanship and materials for a pe- riod of one year from the date of purchase. - Page 13 SERVICE The following information is provided in the unlikely event that your unit requires service. 1) Be sure that the unit is the cause of the problem. Check to make sure the unit has power supplied, all cables are connected correctly, and the cables themselves are in working condi- tion.
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Page 14: Specifications
SPECIFICATIONS: EQUALIZER Bands Type / Accuracy Travel Range Overall Gain Range INPUTS Type Connectors Impedance Maximum Level OUTPUTS Type Connectors Impedance Maximum Level RFI filters Passive Bypass Switches Overload LED Threshold High Pass Filter Low Pass Filter Frequency Response THD + Noise IM Distortion (SMPTE) Signal to Noise Ratio Headroom... - Page 16 APPLIED RESEARCH & TECHNOLOGY 215 TREMONT STREET ROCHESTER, NEW YORK 14608 USA (585) 436-2720 – Voice (585) 436-3942 – Fax www.artproaudio.com E-mail: cserve@artproaudio.com HD-SERIES Model HD131 - SINGLE CHANNEL 31 BAND 1/3 OCTAVE GRAPHIC EQUALIZER Model HD215 - DUAL CHANNEL 15 BAND 2/3 OCTAVE GRAPHIC EQUALIZER Model HD231 - DUAL CHANNEL 31 BAND 1/3 OCTAVE GRAPHIC EQUALIZER HD-SERIES HD-5004-100...