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Nilfisk-ALTO EQU manual

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Table of contents for the manual

  • Page 1

    EQU Series User's Manual LTO R www .altoproaudio.com V ersion 1.0 April 2002 English 15/31 Band Graphic Equalizer - 0dB +18 - 0dB +18[...]

  • Page 2

    1 1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Grounding Make sure to connect the protective grounding to prevent any electric shock before turning ON the apparatus. Never cut off the internal or external protective grounding wire or disconnect the wiring of protective grounding terminal. This symbol, wherever it [...]

  • Page 3

    2 Preface Dear Customer: Thanks for choosing L TO Graphic Equalizer and thanks for choosing one of the results of L TO AUDIO TEAM job and researches. For our L TO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say ...our obsession! We have been designing professional audio products for a long time in cooperati[...]

  • Page 4

    T ABLE OF CONTENT 1. INTRODUCTION ..........................................................................................................................4 2. FEA TURE LIST ............................................................................................................................4 3. CONTROL ELEMENTS .............................[...]

  • Page 5

    4 EQU131 Front Panel EQU215 Front Panel EQU2215 Front Panel POWER 25 40 63 100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K LEVEL 0 Channel One 25 40 63 100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K LEVEL Channel T wo RANGE CLIP 6 6 12 12 16KHz 40Hz BYPASS HI-PASS 40Hz LOW-PASS 16KHz RANGE CLIP 16KHz 40Hz BYPASS HI-PASS 40Hz LOW-PASS 16KHz Dual [...]

  • Page 6

    5 5 EQU231TWIN 20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K 25 40 80 160 400 1K 2K 5K 10K 63 125 315 800 250 630 1.6K 4K 3.15K 8K 16K 20K LEVEL Channel One Channel T wo Dual 31 Band Graphic Equalizer 20 31.5 50 100 200 500 1.25K 2.5K 6.3K 12.5K 25 40 80 160 400 1K 2K 5K 10K 63 125 315 800 250 630 1.6K 4K 3.15K 8K 16K 20K LEVEL POWER BY-PASS RANGE H[...]

  • Page 7

    6 1 1. VU meter This VU meter is used to indicate the output level. 12. High pass LED When the High pass filter(40Hz/12dB) is in active, this LED will light. 13. Low pass LED 14. Output level meter This output level meter is used to indicate the output level. 3.2 The Rear Panel When the Low pass filter(16KHz/12dB) is in active, this LED will light.[...]

  • Page 8

    15. XLR input and output connector The XLR connector are actively balanced and are used to input/output the signal. 16. 1/4" TRS phone plug input and output connector The 1/4" TRS connector are actively balanced and are used to input/output the signal. 17. RCA input and output connector The RCA connector are unbalanced. EQU231TWIN Rear Pa[...]

  • Page 9

    8 18. Ground lift switch This switch is used to disconnect the signal ground from the mains and chassis earth. If it is determined that the equalizer is the cause of hum or buzz in your system due to a ground loop, move this switch to the "lift" position. 4. INST ALLA TION & CONNECTION 4.1 Mains Connection Please ensure that the EQU S[...]

  • Page 10

    9 Balanced Unbalanced TIP RING SLEEVE TIP RING SLEEVE TIP RING SLEEVE TIP SLEEVE TIP SLEEVE TIP RING SLEEVE TIP SLEEVE TIP RING SLEEVE SLEEVE RING TIP SLEEVE RING TIP SLEEVE TIP Tip Ring Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Sleeve Tip Sleeve Tip Sleeve Tip Ring Sleeve 1 2 3 1 2 3 1 2 3 Tip Ring Sleeve 1 2 3 Centre Centre Centr[...]

  • Page 11

    CDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABC Hyman gearing range VOCAL 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1.3K 1.6K 2K 2 .5 K 3 . 1 K 4K 5K 6.2K 8K 10K 13K 16K 20K Soprano Contralto Baritone Bass WOODWIND Piccolo Flute Oboe Clarinet in B flat or A Clarinet in E flat Bass Clarinet Basset Hom Cor Anglais [...]

  • Page 12

    11 5.2 Equalizer In Sound Reinforcement Systems The EQU Series Graphic Equalizers can be used in the sound reinforcement systems to : Eliminate unwanted sounds, such as the 60Hz Hum noise. Shape the sound by changing the frequency response of the track. Special effects like telephone sounds are done by cutting of f the low end to 200Hz and the high[...]

  • Page 13

    12 Ty p e E QU131 EQU215 EQU2215 EQU131VU EQU231VU / 231LED 2 15 Band: 2/3 octave , ISO spacing (1H series) 2 15 Band: 2/3 octave , ISO spacing (2H series) 1 31 Band: 1/3 octave , ISO spacing (1H series) 2 31 Band: 1/3 octave , ISO spacing (2H series) 6. TECHNICAL SPECIFICA TIONS Slider travel 20mm with positive centre detente (EQU131/EQU215/EQU231[...]

  • Page 14

    13 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain W arranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date. All the information presented in this W arranty Registration Card gives the manufacturer a better under- standing of the sales status, so as to purport[...]