Download Alto EQU MK II Series User`s manual
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R LTO User's Manual EQU MKII SERIES 15/31 BANDS GRAPHIC EQUALIZER www.altoproaudio.com Version 1.2 NOV. 2007 English IMPORTANT SAFETY INSTRUCTION CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN TO REDUCE THE RISK OF ELECTRIC SHOCK PLEASE DO NOT REMOVE THE COVER OR THE BACK PANEL OF THIS EQUIPMENT. THERE ARE NO PARTS NEEDED BY USER INSIDE THE EQUIPMENT. FOR SERVICE, PLEASE CONTACT QUALIFIED SERVICE CENTERS. WARNING To reduce the risk of electric shock and fire, do not expose this equipment to moisture or rain. Dispose of this product should not be placed in municipal waste and should be separate collection. 11. Move this Equipment only with a cart, stand, tripod, or bracket, This symbol, wherever used, alerts you to the specified by the presence of un-insulated and dangerous voltages manufacturer, or within the product enclosure. These are voltages that sold with the may be sufficient to constitute the risk of electric Equipment. When shock or death. a cart is used, use This symbol, wherever used, alerts you to caution when important operating and maintenance instructions. moving the cart / Please read. equipment Protective Ground Terminal combination to AC mains (Alternating Current) avoid possible Hazardous Live Terminal injury from tip-over. ON: Denotes the product is turned on. 12. Permanent hearing loss may be caused by OFF: Denotes the product is turned off. exposure to \ extremely high noise levels. CAUTION The US. Government's Occupational Safety Describes precautions that should be observed to and Health Administration (OSHA) has prevent damage to the product. specified the permissible exposure to noise 1. Read this Manual carefully before operation. level. 2. Keep this Manual in a safe place. These are shown in the following chart: 3. Be aware of all warnings reported with this symbol. HOURS X DAY SPL EXAMPLE 4. Keep this Equipment away from water and 90 Small gig 8 moisture. 92 train 6 5. Clean it only with dry cloth. Do not use 95 Subway train 4 solvent or other chemicals. 97 High level desktop monitors 3 6. Do not damp or cover any cooling opening. 100 Classic music concert 2 Install the equipment only in accordance with 102 1,5 the Manufacturer's instructions. 105 1 7. Power Cords are designed for your safety. Do 110 0,5 not remove Ground connections! If the plug 0,25 or less 115 Rock concert does not fit your AC outlet, seek advice from a qualified electrician. Protect the power According to OSHA, an exposure to high SPL in cord and plug from any physical stress to excess of these limits may result in the loss of avoid risk of electric shock. Do not place heat. To avoid the potential damage of heat, it is heavy objects on the power cord. This could cause electric shock or fire. recommended that Personnel exposed to equipment capable of generating high SPL use 8. Unplug this equipment when unused for long hearing protection while such equipment is periods of time or during a storm. under operation. 9. Refer all service to qualified service personnel The apparatus shall be connected to a mains only. Do not perform any servicing other than those instructions contained within the socket outlet with a protective earthing User's Manual. connection. 10. To prevent fire and damage to the product, use only the recommended fuse type as indicated in this manual. Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected from the AC outlet. The mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. IN THIS MANUAL: 1. 2. 3. 4. 5. 6. 7. INTRODUCTION.........................................................................1 FEATURES................................................................................1 CONTROL ELEMENTS................................................................2 APPLICATION............................................................................7 INSTALLATION & CONNECTION...................................................9 TECHNICAL SPECIFICATIONS.....................................................12 WARRANTY.............................................................................13 1. INTRODUCTION Thank you for your purchasing the EQU MKII series Graphic Equalizers. With the EQU MKII series Graphic Equalizers you have acquired extremely musical and flexible Graphic Equalizer. The high-end EQU MKII series are based on many years of experience and are designed to provide a permanent precise equalization to musician, performer, and studio engineer. They can be used wherever is requested to modify the frequency "contour" of a sound and can offer a solution to many common sound problems and allows the user to use the creativity to obtain nice results in terms of sound characterization. EQU Series Graphic Equalizers include the following seven models: EQU131-MKII V2-Graphic Mono 31-Band Equalizer EQU215-MKII V2-Graphic Stereo 15-Band Equalizer EQU215TWIN-MKII-Graphic Stereo 15-Band Equalizer EQU131VU-MKII-Graphic Mono 31-Band Equalizer/VU Meter 1 EQU231VU-MKII V2-Graphic Stereo 31-Band Equalizer/VU Meter EQU231-MKII V2-Graphic Stereo 31-Band Equalizer EQU231TWIN-MKII V2-Graphic Stereo 31-Band Equalizer 2 Enjoy your EQU MKII and make sure to read this Manual carefully before operation. 2. FEATURES Constant Q circuitry with a 3% center frequency accuracy Control range 6 dB/ 12 dB selectable Active balanced and unbalanced input and output connectors Variable input level control Signal clip pilot Ground "LIFT" switch to disconnect signal ground from chassis ground Power off automatic bypass function Line voltage selectable Robust and compact design Mountable in a 19" rack unit(1U) Manufactured Under QS9000, VDA6.1 certified management system 1 SP OT L IG 3. CONTROL ELEMENTS HT Front panel EQU131-MKII V2 8 6 2 12 5 10 7 INPUT LEVEL 31 Band Graphic Equalizer +12 +6 INPUT OUTPUT +12 SIG CLIP R 0 LTO 6 0dB -12 - 6 25 31.5 40 50 80 63 100 125 160 200 250 315 400 500 800 630 1.25K 1K 1.6K 2K 2.5K 3.15K 5K 4K 8K 6.3K 10K 12.5K 16K 40Hz 16KHz ON HI PASS LOW PASS EQ EQU131 MK V2 -12 RANGE 20 SIG CLIP 12 20K 11 3 1 4 9 EQU215-MKII V2 8 7 Dual 15 Band Graphic Equalizer INPUT Channel One +12 +6 OUTPUT SIG CLIP SIG CLIP +12 40Hz R +12 +6 40Hz 25 40 63 100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K 6 -12 LEVEL 12 -12 - 6 25 EQ 5 40 63 100 160 250 400 6 1 EQU215 MK V2 HI-PASS LOW-PASS ON RANGE 16KHz 0dB 0 HI-PASS LOW-PASS -12 -- 66 OUTPUT SIG CLIP SIG CLIP +12 16KHz 0dB 0 LTO 4 INPUT Channel Two 1K 630 1.6K 2.5K 4K 6.3K 16K 10K LEVEL 12 ON EQ RANGE 2 1 6 -12 10 12 3 11 9 EQU215TWIN-MKII 8 4 3 Dual 15 Band Graphic Equalizer 5 7 Channel One +12 +6 +12 INPUT +12 +6 OUTPUT +12 SIG CLIP SIG CLIP 40Hz R 0 LTO 0 6 63 100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K ON 12 6 -12 - 6 RANGE EQ 25 40 63 100 160 250 400 12 2 11 9 1 16KHz 0dB EQU215TWIN HI-PASS LOW-PASS -12 INPUT LEVEL OUTPUT 40Hz 16KHz 0dB -12 - 6 40 INPUT SIG CLIP SIG CLIP HI-PASS LOW-PASS 25 6 Channel Two 630 1K 1.6K 2.5K 4K 6.3K 10K 1 12 ON -12 INPUT LEVEL 16K MK RANGE EQ 2 10 EQU131VU-MKII 5 8 13 31 Band Graphic Equalizer 7 OUTPUT +12 +6 +12 LTO R EQU131VU POWER OUTPUT R 0 LTO 0dB INPUT SIG 6 -12 - 6 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 1 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K -12 12 RANGE INPUT LEVEL 2 SIG CLIP 40Hz 16KHz ON HI PASS LOW PASS EQ 4 3 MK OUTPUT CLIP 11 12 2 6 10 9 SP OT L IG 3. CONTROL ELEMENTS HT EQU231VU-MKII V2 7 8 3 6 5 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K INPUT LEVEL 20K 4 INPUT 0dB 0 -12 - 6 OUTPUT SIG CLIP SIG CLIP +12 +12 +6 OUTPUT 40Hz 16KHz 20 6 -12 3 10 6 50 100 VU HI-PASS LOW-PASS 0 3 5 ON 12 R LTO POWER OUTPUT R Channel One Channel Two Dual 31 Band Graphic Equalizer LTO 0dB -12 - 6 31.5 40 50 80 63 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2.5K 2K 3.15K 5K 4K 8K 6.3K 10K 12.5K 16K SIG CLIP SIG CLIP 40Hz 20 6 20 25 31.5 40 40 50 50 63 63 LTO 11 9 100 100 125 125 160 160 200 200 250 250 315 315 400 400 500 500 630 630 800 800 1K 1K 1.25K 1.25K 1.6K 1.6K 2K 2K 2.5K 2.5K 3.15K 3.15K 4K 4K 5K 5K 6.3K 6.3K 8K 8K 10K 10K 12.5K 12.5K 16K 16K 13 INPUT OUTPUT +12 6 R 12 SIG CLIP 40Hz 16KHz ON HI PASS LOW PASS EQ 0dB -12 - 6 -12 +12 +6 +12 RANGE INPUT SIG CLIP 6 -12 - 6 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 12 MK V2 OUTPUT SIG CLIP 40Hz 16KHz ON HI PASS LOW PASS EQ 0dB 0 40 EQU231 Channel One Channel Two Dual 31 Band Graphic Equalizer LTO 6 7 5 SIG CLIP 31.5 R 10 INPUT LEVEL 20K 0 25 MK V2 20K +12 +6 20 EQU231VU 5 8 80 80 3 POWER OUTPUT 12 31.5 100 VU 0 EQ EQU231-MKII V2 25 50 ON 12 12 20 6 16KHz RANGE 2 3 10 HI-PASS LOW-PASS -12 INPUT LEVEL 20K 1 OUTPUT +12 0 25 EQ INPUT OUTPUT +12 +6 20 RANGE -12 RANGE INPUT LEVEL 20K 9 3 2 1 10 4 11 EQU231TWIN-MKII V2 5 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K 4 6 3 INPUT LEVEL +12 +6 +12 INPUT SIG 0 6 R -12 - 6 -12 +12 +6 +12 12 RANGE 16KHz ON HI-PASS LOW-PASS EQ EQU231TWIN MK V2 INPUT SIG 0 0dB 6 -12 - 6 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 1 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K OUTPUT SIG CLIP 12 RANGE 20 CLIP 40Hz Channel One Channel Two Dual 31 Band Graphic Equalizer LTO OUTPUT SIG CLIP 0dB CLIP 40Hz 16KHz ON HI-PASS LOW-PASS EQ -12 INPUT LEVEL 2 11 7 8 9 10 12 1 Filter level controls Each one of these linear potentiometers will boost or attenuate (either 6dB or 12 dB) the selected frequency at a preset bandwidth. When all the sliders are in the centre position, the output of the equalizer is flat response. 3 SP OT L IG 3. CONTROL ELEMENTS HT 2 Level control This control sets the input signal level of the equalizer. The "0 dB" position is unity gain (no boost or attenuation). If the clip LED (5) lights continuously, turn down this control until it only blinks occasionally. 3 High-pass Filter This button electronically inserts a filter into the signal path, which cuts the low frequencies at 40 Hz (12 dB per octave). The LED (12) indicator lights up when the button is pressed and this filter is serving in the circuit. 4 Low-pass Filter This button electronically inserts a filter into the signal path, which cuts the high frequencies at 16 K (12 dB per octave). The LED (13) indicator lights up when the button is pressed and this filter is serving in the circuit. 5 High-pass LED When the High pass filter (40 Hz/12 dB) is actived, this LED will light up. 6 Low-pass LED When the Low pass filter (16 kHz/12 dB) is actived, this LED will light up. 7 Clip LED This LED will light up when any section of the equalizer is within 5 dB of clipping. Occasional blinking of this clip LED is acceptable, but if it remains on continuously, you should turn down the level control or reduce the output level of the preceding component to avoid audible distortion. 8 Signal LED This green LED will light up when any signal appears at Input/Output stage. 9 EQ switch This switch inserts or removes the equalizer to channel path. If press this switch, the EQ LED (8) will be illuminated, which means it is in EQ mode. When release this switch, the input signal is routed directly into the output jacks, which means it is in bypass mode. 10 EQ LED When this LED lights up, it is in EQ mode. 11 Range switch This button switches the gain range of the filter slider between 6 dB and 12 dB. 12 Filter range indicator When the 6 dB range is selected, green LED will light up. When the 12 dB range is selected, red LED will light up. 13 VU Meter (Only for EQU131VU-MKII/231VU-MKII V2) This VU meter is used to indicate the output level. 4 SP OT L IG 3. CONTROL ELEMENTS HT The rear panel EQU131-MKII V2 PUSH AC INPUT 95-120V /210-240V 60-50Hz Rated Power Consumption 9W ON MODEL SERIAL OFF TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 FUSE: NEW TIDE 3 2 Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk POWER LIFT GND OUTPUT UNBALANCED 18 14 19 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 210-240V: T100mAL 250VAC 95-120V: T160mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY 17 1 INPUT BALANCED UNBALANCED 15 16 BALANCED 15 16 17 EQU215-MKII V2 AC INPUT FUSE: 95-120V /210-240V 60-50Hz Rated Power Consumption 9W ON CHANNEL 2 210-240V: T100mAL 250VAC 95-120V: T160mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 CHANNEL 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk OFF LIFT GND POWER 19 14 OUTPUT UNBALANCED 18 17 INPUT BALANCED 16 UNBALANCED 17 15 OUTPUT BALANCED UNBALANCED INPUT BALANCED UNBALANCED BALANCED 15 16 EQU215TWIN-MKII AC INPUT 95-120V /210-240V 60-50Hz Rated Power Consumption 9W FUSE: 210-240V: T100mAL 250VAC 95-120V: T160mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY CHANNEL 2 Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk ON TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 CHANNEL 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 MODEL OFF POWER OUTPUT SERIAL UNBALANCED INPUT BALANCED UNBALANCED OUTPUT BALANCED UNBALANCED INPUT BALANCED UNBALANCED BALANCED LIFT GND 19 14 17 18 16 15 17 16 15 EQU131VU-MKII AC INPUT 95-120V /210-240V 60-50Hz Rated Power Consumption 9W PUSH FUSE: ON 210-240V: T100mAL 250VAC 95-120V: T160mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk OFF MODEL POWER LIFT GND OUTPUT UNBALANCED INPUT BALANCED UNBALANCED BALANCED SERIAL 19 14 15 16 17 18 17 15 16 EQU231VU-MKII V2/EQU231-MKII V2 CHANNEL 1 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 AC INPUT PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 95-120V /210-240V 60-50Hz Rated Power Consumption 18W FUSE: 210-240V: T100mAL 250VAC 95-120V: T200mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY ON OUTPUT UNBALANCED Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk INPUT BALANCED UNBALANCED BALANCED CHANNEL 2 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 MODEL OFF POWER SERIAL LIFT GND 19 14 PUSH TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 18 OUTPUT UNBALANCED 17 16 INPUT BALANCED 15 UNBALANCED 17 BALANCED 16 15 5 SP OT L IG 3. CONTROL ELEMENTS HT EQU231TWIN-MKII V2 CHANNEL 1 TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 AC INPUT TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 PUSH 95-120V /210-240V 60-50Hz Rated Power Consumption 18W FUSE: ON 210-240V: T100mAL 250VAC 95-120V: T200mAL 250VAC REPLACE FUSE WITH CORRECT TYPE ONLY OUTPUT Apparaten skall anslutas till jordat uttag nar den ansluts till ett natverk UNBALANCED INPUT BALANCED UNBALANCED BALANCED CHANNEL 2 OFF POWER TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 MODEL TIP/PIN 2 RING/PIN 3 SLEEVE/PIN 1 PUSH SERIAL LIFT GND OUTPUT UNBALANCED 19 14 18 17 16 INPUT BALANCED 15 UNBALANCED 17 BALANCED 16 15 14 Power switch It switches the unit ON and OFF. 15 XLR IN/OUT connectors The XLR connectors are balanced and are used to Input/Output the signal. 16 1/4" TRS phone IN/OUT connectors The 1/4" TRS connector are balanced and are used to Input/Output the signal. 17 RCA IN/OUT connectors The RCA connectors are unbalanced. NOTE: While you can use any input connector with any output connector, only one set of these connectors is to be used at one time (The wiring and connection, details please refer to 5.2 audio connection). 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 "lift" position. 19 AC Inlet/Fuse holder Standard IEC receptacle. Connect your equalizer an AC socket with the supplied power cord. Before powering up your equalizer for the first time, make certain the stated power requirement of the unit matches the voltage supplied by the AC socket. If the fuse blows, replaced with a fuse of the correct type only. 6 4. APPLICATION 4.1 The Sound Frequency In recording studios as well as stage or radio plays, the equalizer will give you a perfect contour of your sound. But first of all, you should clarify the typical frequency of each instrument and voice, so that you can obtain nice results in terms of sound characterization. The following table will give you an idea of specific frequencies and their acoustic significance. Typical Frequency of Each Instrument and Voice Mid C CDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABCDEFGABC 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1.3K 1.6K 2K 2.5K 3.1K 4K 5K 6.2K 8K 10K 13K 16K 20K Human hearing range Vocal Soprano Contralto Baritone Bass WOODWIND Piccolo Flute Oboe Clarinet in B flat or A Clarinet in E flat Bass Clarinet Basset Horn Cor Anglais Bassoon Double Bassoon Brass Soprano Saxophone Alto Saxophone Tenor Saxophone Baritone Saxophone Bass Saxophone Trumpet in C Trumpet in F Alto Trombone Tenor Trombone Bass Trombone Tuba Valve Horn STRINGS Violin Viola Cello Double Bass Guitar KEYBOARDS Pianoforte Organ PERCUSSION Celesta Timpani Xylophone 25 31 40 50 62 80 100 125 160 200 250 320 400 500 640 800 1K 1.3K 1.6K 2K 2.5K 3.1K 4K 5K 6.2K 8K 10K 13K 16K 20K FREQUENCY 7 4. APPLICATION 4.2 Application on line instrument The EQU MKII Series Graphic Equalizer can be used on an entire mix "In-line" between a instrument outputs and a power amplifier, and this is the basic application in the PA system to offer precise equalization control. CH1 IN CH1 OUT CH2 OUT CH2 IN From line instrument outputs 20 25 31.5 40 50 63 80 100 125 160 200 250 315 To power amplifier inputs 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K INPUT LEVEL 20K +12 +6 INPUT OUTPUT +12 SIG CLIP 6 R 40Hz -12 - 6 -12 +12 +6 +12 RANGE 16KHz ON HI PASS LOW PASS EQ INPUT 6 -12 - 6 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K SIG CLIP 12 40Hz 16KHz ON HI PASS LOW PASS EQ 0dB 0 25 MK V2 OUTPUT SIG CLIP 20 EQU231 Channel One Channel Two Dual 31 Band Graphic Equalizer LTO SIG CLIP 12 0dB 0 -12 RANGE INPUT LEVEL 4.3 Mixing Console The EQU MKII Series Graphic Equalizer can also be used on a single instrument by connecting to a mixing console's main inserts, especially for those consoles without built-in equalization circuitry. Main Inserts 2 Main Inserts 1 CH2 OUT Send 2 Send 1 CH1 OUT CH2 IN CH1 IN 20 25 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K INPUT LEVEL 20K +12 +6 INPUT OUTPUT +12 SIG CLIP 6 R -12 RANGE SIG CLIP 40Hz HI PASS INPUT +12 +6 6 -12 - 6 31.5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1.25K 1.6K 2K 2.5K 3.15K 4K 5K 6.3K 8K 10K 12.5K 16K 20K 12 -12 INPUT LEVEL RANGE SIG CLIP 40Hz 16KHz ON HI PASS LOW PASS EQ NOTE: Mono/Stereo Application a. For mono application, please use the EQU131-MKII V2, EQU131VU-MKII mono Graphic Equalizer. b. For stereo application, please use the EQU215-MKII V2, EQU215TWIN-MKII, EQU231-MKII V2, EQU231VU-MKII or EQU231TWIN-MKII V2 stereo Graphic Equalizer, either of the two channels can be used as L/R input & output. 8 EQU231 MK V2 +12 SIG CLIP 25 ON EQ OUTPUT 0dB 0 20 16KHz LOW PASS Channel One Channel Two Dual 31 Band Graphic Equalizer LTO 12 0dB 0 -12 - 6 5. INSTALLATION AND CONNECTION Ok, you have got to this point and you are now in the position to operate your equalizer successfully. However, we advise you to read carefully the following section to be real master of your own equalizer. Not paying attention enough to the input signal level, to the routing of the signal and the assignment of the signal will result in unwanted distortion, a corrupted signal or no sound at all. So you should follow this procedure for every single channel: 5.1 Mains Connection Please ensure that the equalizer is set to the correct supply voltage before plugging the power cord into the wall outlet, use the same fuse as marked on the fuse holder at the AC power connection socket. The mains connections of the EQU MKII Series Graphic Equalizer is made by using the enclosed mains cord and a standard IEC receptacle. It meets all of the international safety certification requirements. 5.2 Audio Connection The equalizer presents with balanced XLR and 1/4" TRS and unbalanced RCA connectors. It can be interfaced in several ways to support a variety of applications without any signal loss. The equalizer can be used on a single instrument by connecting to the mixing console's main inserts, or on an entire mix "in-line" between a mixing console's outputs and a power amplifier. The defective wiring may degrade the performance of equalizer, so please use good quality screened audio cables only. Please follow the guide below to interface equalizer without experiencing any noise or signal loss. Sleeve Tip Ring Ring=Right Signal Strain Clamp Tip=Left Signal Sleeve=Ground/Screen Use for Headphone 1/4" Stereo (TRS) Jack Plug Sleeve Tip Tip=Signal Strain Clamp Sleeve=Ground/Screen Use for Mono Line In, Mono 1/4" Jack Plugs 1/4" Mono (TS) Jack Plug 9 5. INSTALLATION AND CONNECTION Sleeve Ring=Return Signal Tip Ring Strain Clamp Tip=Send Signal Sleeve=Ground/Screen Use for Insert Points 1/4" Stereo (TRS) Jack Plug 2=Hot(+) 2 1 3 2=Hot(+) 1=Ground/Screen 2 1 3 1=Ground/Screen 3=Cold(-) 3=Cold(-) Use for Balanced Mic Inputs (For unbalanced use, connect pin 1 to 3) Use for Main output (For unbalanced use, leave pin3 unconnected) 3-pin XLR Male Plug 3-pin XLR Line Socket (seen from soldering side) (seen from soldering side) SLEEVE TIP TIP RING SLEEVE Tip Ring Sleeve Tip (Send) Sleeve Tip (Return) Sleeve SLEEVE RING TIP 1 2 (Send) 1 3 2 Tip Ring Sleeve 2 1 3 Tip Ring Sleeve Centre (Send) Screen Centre (Return) Screen TIP RING SLEEVE Insert Leads 10 1 2 (Return) 3 TIP RING SLEEVE 3 5. INSTALLATION AND CONNECTION 5.3 Line Connection For these applications the EQU MKII Series Graphic Equalizers provide 1/4" TRS connector, XLR connectors and RCA connectors to easily interface with most any professional audio device. Follow the configuration examples below for your particular connection. Banlanced TIP RING SLEEVE SLEEVE RING TIP 3 2 2 3 1 1 1 3 2 TIP RING SLEEVE Tip Ring Sleeve Tip Ring Sleeve 1 2 3 1 2 3 Tip Ring Sleeve 1 2 3 Tip Ring 1 2 3 Unbalanced 1 3 2 Sleeve TIP RING SLEEVE Tip 1 3 2 Sleeve 1 2 3 TIP SLEEVE 2 3 1 1 2 3 Tip TIP SLEEVE TIP RING SLEEVE SLEEVE TIP SLEEVE RING TIP Centre Screen Tip Sleeve Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Centre Sleeve Screen TIP SLEEVE Tip Centre Ring Sleeve Screen TIP RING SLEEVE 2 2 3 3 1 1 1 2 3 1 2 3 11 6. TECHNICAL SPECIFICATION Type EQU231VU-MKII V2 EQU231-MKII V2 EQU231TWIN-MKII V2 EQU131VU-MKII EQU131-MKII V2 EQU215-MKII V2 EQU215TWIN-MKII 2 31-Band: 1/3 octave, ISO spacing(2H series) 2 31-Band: 1/3 octave, ISO spacing(2H series) 2 31-Band: 1/3 octave, ISO spacing(3H series) 1 31-Band: 1/3 octave, ISO spacing(2H series) 1 31-Band: 1/3 octave, ISO spacing(1H series) 2 15-Band: 2/3 octave, ISO spacing(1H series) 2 15-Band: 2/3 octave, ISO spacing(2H series) Slider travel 20 mm with positive centre detent Range Input connections (EQU231-MKII V2/EQU231VU-MKII V2/EQU131-MKII V2/EQU215-MKII V2) 45 mm with positive centre detent(Only for EQU231TWIN-MKII V2) 60 mm with positive centre detent(EQU131VU-MKII /EQU215TWIN-MKII) 6 dB or 12 dB selectable Active balanced XLR and 1/4" TRS Unbalanced RCA Input impedance Maximum input level Output connections Output impedance High pass filter Low pass filter Frequency response THD + N% S/N ration Power supply 20 k (bal.) 15 k (unbal.) 14 dBu Active balanced XLR and 1/4" TRS Unbalanced RCA <600 40 Hz(12 dB/oct) fixed-button type 16 kHz(12 dB/oct) fixed-button type 20 Hz to 50kHz at -1.5 dBu <0.01%(@1kHz, all VR at middle position) 110 dB 95V-120VAC-60 Hz 220V-240VAC-50 Hz/60 Hz Consumption EQU231VU-MKII EQU231-MKII V2 EQU231TWIN-MKII V2 EQU131VU-MKII V2 EQU131-MKII V2 EQU215-MKII V2 EQU215TWIN-MKII 2 2 2 1 1 2 2 31 31 31 31 31 15 15 Band: Band: Band: Band: Band: Band: Band: 1/3 1/3 1/3 1/3 1/3 2/3 2/3 octave, octave, octave, octave, octave, octave, octave, ISO ISO ISO ISO ISO ISO ISO spacing:18 W spacing:18 W spacing:18 W spacing:9 W spacing:9 W spacing:9 W spacing:9 W Dimension 483(W) 220(D) 44(H)(19" 8.66" 1.7")mm (1H series) 483(W) 220(D) 88(H)(19" 8.66" 3.5")mm (2H series) 483(W) 220(D) 132(H)(19" 8.66" 5.1")mm (3H series) 12 7. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to provide a more effective and efficient after-sales warranty service. Please fill out all the information carefully and genuinely, miswriting or absence of this card will void your warranty service. 2. RETURN NOTICE 2.1 In case of return for any warranty service, please make sure that the product is well packed in its original shipping carton, and it can protect your unit from any other extra damage. 2.2 Please provide a copy of your sales receipt or other proof of purchase with the returned machine, and give detail information about your return address and contact telephone number. 2.3 A brief description of the defect will be appreciated. 2.4 Please prepay all the costs involved in the return shipping, handling and insurance. 3. TERMS AND CONDITIONS 3.1 LTO warrants that this product will be free from any defects in materials and/or workmanship for a period of 1 year from the purchase date if you have completed the Warranty Registration Card in time. 3.2 The warranty service is only available to the original consumer, who purchased this product directly from the retail dealer, and it can not be transferred. 3.3 During the warranty service, LTO may repair or replace this product at its own option at no charge to you for parts or for labor in accordance with the right side of this limited warranty. 3.4 This warranty does not apply to the damages to this product that occurred as the following conditions: Instead of operating in accordance with the user's manual thoroughly, any abuse or misuse of this product. Normal tear and wear. The product has been altered or modified in any way. Damage which may have been caused either directly or indirectly by another product / force / etc. Abnormal service or repairing by anyone other than the qualified personnel or technician. And in such cases, all the expenses will be charged to the buyer. 3.5 In no event shall LTO be liable for any incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you. 3.6 This warranty gives you the specific rights, and these rights are compatible with the state laws, you may also have other statutory rights that may vary from state to state. 13 SEIKAKU TECHNICAL GROUP LIMITED NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan http://www.altoproaudio.com Tel: 886-4-22313737 email: [email protected] Fax: 886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this manual without written permission is forbidden. Copyright c 2007 Seikaku Group NF01783-1.2