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By rolling off the extreme LOW frequencies with the LOW CUT filter, a measure of protection is added to the system without severely affecting the overall sound quality. D. In noisy environments, the audio signal may be tailored for better intelligibility and penetration. This is especially useful for public address systems. E. Creative use of the equalizer allows shaping of the signal for a more pleasing sound or for special effects. The only limits are those of taste and imagiation. Musical Instrument Applications A. Putting an equalizer in line with a musical instrument allows you to modify the sound of the instrument. You can brighten the sound, or add body to a thin sounding instrument, or even give the sound a totally different character. B. An equalizer will allow you to eliminate unwanted sounds, like a 60-cycle HUM from a badly grounded amplifier. INSTALLATION TYPICAL SET-UP Studio Applications A graphic equalizer is one of the most useful tools in the sound engineer’s bag. NADY AUDIO equalizers offer the features and flexibility to perform where it counts in the studio. A. Fix a track that doesn’t sound quite right. Put the equalizer in an effects send and return it to the MIX bus. B. Create an artificial stereo by splitting a monaural signal and equalizing the split signals differently, then panning one equalized signal to the right and the other signal to the left. C. Shape the sound by changing the frequency response of the track. D. Special effects, like a telephone sound, can be created by cutting off the LOW end to 200Hz and the HIGH end to 6KHz. E. Also when you use the equalizer with other pieces of equipment, such as the NADY AUDIO CL-5000 Compressor Limiter with Gate, you can do real signal processing magic. Emphasizing the HIGH frequencies of a signal and feeding the modified signal to the side chain of the compressor makes the compressor a DE-ESSER; or, emphasizing the LOW frequencies and putting that through the side chain, makes the compressor a "DE-THUMPER". Also, you can reduce unwanted frequency- dependent noise in a signal by cutting the offending frequencies with an equalizer and letting the noise gate of the CL-5000 "KEY" on the modified signal, while letting the original signal pass and gating the unwanted sounds. (See the instruction manual for the NADY AUDIO CL-5000 for more ideas and detail on methods to utilize your equalizer in the fullest). SPECIFICATIONS Equalizer: Equalizer Control Bands 1X31, 1/3 Octave ISO Spacing From 20Hz to 20KHz 2X31, 1/3 Octave ISO Spacing From 20Hz to 20KHz 2X15, 2/3 Octave ISO Spacing From 25Hz to 16KHz Filter Type Constant Q Slider Travel 20mm (Center Detent) for GEQ 131/215/231 60mm (Center Detent) for GEQ 131LF/215LF Level Control Range +/-6dB or +/-12dB (Selectable) Inputs: Type Active Balanced/Unbalanced Connectors 3-P XLR, 1/4" TRS (Balanced), RCA (Unbalanced) Impedance 20K Ohms Balanced; 15K Ohms Unbalanced Maximum Level +/-18dBV Outputs: Type Active Balanced/Unbalanced Connectors 3-P XLR, 1/4" TRS (Balanced). RCA (Unbalanced) Impedance Typically < 600 Ohms Maximum Level +/-16dBV Clip LED Threshold 5dB (Below Clipping) Low Cut (High Pass) Filter (GEQ 131/131LF/231) 10Hz to 250Hz (12dB/Octave), variable (GEQ 215LF) 40Hz (12dB/Octave), switchable Low Pass (High Cut) Filter (GEQ 131/131LF/231) 3KHz to 50KHz (12dB/Octave), variable (GEQ 215LF) 16KHz (12dB/Octave), switchable Frequency Response 20Hz – 20KHz, +/- 1dB THD + Noise <0.02% (@ 1KHz, all faders at mid position) Signal to Noise Ratio 93dB (@ 1KHz) Channel Separation 60dB (1KHz) Line Voltage 100-130V AC, 50/60Hz 200-240V AC, 50Hz Power Consumption Maximum: 15 watts Size: 19"W X 3.5"H X 8.66"D (2U) (48.2cm X 8.8cm X 22.0cm) For GEQ 131LF/ 215LF/231 19"W X 1.75"H X 8.66"D (1U) (48.2cm X 4.4cm X 22.0cm) For GEQ 131/215 Weight: 6.16lbs. (2.8Kg.) GEQ 215 6.38lbs. (2.9Kg.) GEQ 131 7.04lbs. (3.2Kg.) GEQ 131LF 7.7lbs. (3.5Kg.) GEQ 215LF 11.44 lbs. (5.2Kg.) GEQ 231 For improvement purposes, all specifications and design are subject to change without notice NOTES SERVICE FOR YOUR NADY AUDIO PRODUCT (U.S.) Should your NADY AUDIO Product require service, please contact the Nady Service Department via phone at (510) 652-2411 or E-mail at service@nadywireless.com. (INTERNATIONAL) For service, please contact the NADY AUDIO distributor in your country through the dealer from whom you purchased this product. DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF AS IT CAN BE DANGEROUS AND ALSO WILL VOID THE WARRANTY. NADY SYSTEMS, INC. • 6701 SHELLMOUND STREET EMERYVILLE, CA 94608 Tel: 510.652.2411 • Fax: 510.652.5075 • ...

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