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User's Manual
S6 6 CHANNEL MIXING CONSOLE
R
LTO
www.altoproaudio.com
Version 2.0 Dec. 2002
English
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the recommended fuse type as indicated in this manual. SAFETY RELATED SYMBOLS Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is OFF and disconnected CAUTION from the AC outlet. RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Ground This symbol, wherever used, alerts you to the pre- Before turning the product ON, make sure that it is sence of un-insulated and dangerous voltages with- connected to Ground. This is to prevent the risk of in the product encl
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PREFACE Dear Customer: Thank you for choosing the LTO S-6 6-Channel Mixing Console, which is the result of our LTO AUDIO TEAM's endeavours. For the LTO AUDIO TEAM, music and audio is more than a profession, it is a passion and an obsession! We have, in fact, been designing professional audio products for a number of years in cooperation with many of the world's major brands. The LTO line represents unparalleled analogue and digital products made by musicians, for musicians. With our design centr
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TABLE OF CONTENTS 1. INTRODUCTION..................................................................................................................................4 2. FEATURES...........................................................................................................................................4 3. READY TO START?.............................................................................................................................4 4. CONTROL ELEMENTS...................
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1. INTRODUCTION Your S-6 is a 6-channel mixer and it is the smallest among our range of mixing consoles. Although, great performances and sound quality is insured thanks to the specification of the components used and the building quality. Your S-6 is packed with features in proportion with it size: 2 Mono (these are provided with Ultra Low Noise microphone preamplifiers and Phantom Power at +48 Volts) and 2 stereo input channels are provided, and each of them is provided with a 3 bands graphic
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4. CONTROL ELEMENTS STEREO AUXSENDS CONTROLROOM MIC 1 MIC 2 AUXRETURN OUTPUT R LTO S-6 6-CHANNEL MIXING CONSOLE 2 1 2 1 3 3 LEFT(MONO) PHONES LEFT RIGHT RIGHT BAL BAL OR OR BAL BAL OR OR UNBAL UNBAL UNBAL UNBAL LINE IN 3/4 LINE IN 5/6 MAIN MIX OUTPUT 2-TRACK IN/OUT LINE IN 1 LINE IN 2 L TRIM TRIM LEFT (MONO) LEFT LEFT(MONO) LEFT(MONO) R +15dB -45dB LINE +15dB -45dB LINE 0dB 60dB MIC 0dB 60dB MIC RIGHT RIGHT RIGHT TAPE IN TAPE OUT EQ EQ EQ EQ HI HI HI HI HI HI HI HI 12kHz 12kHz 12kHz 12kHz 12kHz
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4.1 The MIC/LINE channels 1 These are Channel 1 and Channel 2. You can connect balanced, low impedance microphones to the XLR socket. ON the 1/4" phone jack you can connect either MIC 1 a microphone or a line level instrument. You shall never connect an unbalanced microphone to the XLR socket if you do not want to damage both the Microphone and the Mixer. 2 1 3 4.1.1 PHANTOM POWER +48 Volts It is available only on the XLR input sockets. 1 BAL BAL OR OR UNBAL UNBAL 4.2 INPUT LEVEL setting 2 LINE
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4.3 The 3 BANDS EQUALISER A 3-band equaliser is provided for all input channels with a wide range of frequency adjustment. EQ 4.4.1 HI 4 HI HI 4 12kHz 12kHz This is the treble control. You can use it to get rid of high frequency -15 +15 0 noises or to boost the sound of cymbals or the high harmonics of the human voice. The gain range goes from -15dB to +15dB with a MID center frequency of 12 kHz. 5 2.5kHz -12 +12 4.4.2 MID 5 This is the midrange control. It can affect most fundamental frequ LOW
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4.9 MASTER section - MAIN MIX LEVEL 11 This Control sets the amount of signal sent either to the Main Out socket or to the Tape Output. - PHONES/CONTROL ROOM 12 This Control sets the amount of signal sent to the Control Room and headphone. 16 PHANTOM PWR - LED METER 13 17 15 PHANT PHANTOM OM PWR PWR This stereo 6 segments Led Meter will indicate 18 the level of the overall output signal. -+15 AUX RETURN CLIP - 2 TRACK signal path 14 10 0 If you push down the 2TK TO CONTROL ROOM 13 -4 button, the
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- MAIN MIX OUTPUT 19 This stereo output is controlled by the Main Mix 20 Level on the front panel and will send the audio signal to an amplifier. The output level can be MAIN MIX OUTPUT 2-TRACK IN/OUT varied from - to +15dB. L - 2-TRACK IN/OUT 20 LEFT Input R Use the Tape input if you wish to listen to your Mix from a Taper Recorder or DAT, You can the signal coming form the Taper Recorder RIGHT TAPE IN TAPE OUT either to a pair of studio monitor using the Control Room assignment on the front pa
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4.10 REAR PANEL ON CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN MODEL WARNING: SHOCK HAZARD - DO NOT OPEN AVIS: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR OFF SERIAL POWER 18VAC~ RATED POWER CONSUMPTION: 11W 25 26 - POWER 25 This switch is used to turn the Main Power ON and OFF. - 18VAC 26 Used to connect the supplied AC Adapter. 10
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5. INSTALLATION AND CONNECTION Ok, you have got to this point you are now in the position to successfully operate your S-6. However, we advise you to read carefully the following section to be the real Master of your own Mix. 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: - Turn down all Inpu
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b. Some Final Tips on Wiring Configuration You can connect unbalanced equipment to balanced inputs and outputs. Simply follow these schematics. Ring=Right Signal Tip Sleeve Ring Strain Clamp Tip=Left Signal Sleeve=Ground/Screen Use for Headphone, Stereo Return 1/4" Stereo (TRS) Jack Plug Tip Sleeve Tip=Signal Strain Clamp Sleeve=Ground/Screen Use for Mono Line In, Mono 1/4"Jack Plugs 1/4" Mono (TS) Jack Plug 2 2 1 1 2=Hot(+) 2=Hot(+) 1=Ground/Screen 1=Ground/Screen 3 3 3=Cold(-) 3=Cold(-) Use fo
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6. FOR THE EXPERTS WHO WANT TO KNOW MORE As we have told you previously in this Manual, the Aux Send Control both on Mono and stereo channels is factory wired as POST-FADER. If you have some skill in electronic components soldering you can modify this setting and have all your AUX sends configured as PRE-FADER. Aux Aux (PRE) (PRE) Solder the PRE route Disconnect POST POST the POST route Before After Modification on mono and stereo channels 13
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- + 7. SYSTEM BLOCK DIAGRAMS 14 1 2 3 4 5 6 7 8 MONOINPUTCHANNELS(1-2) GAIN LO MID HI AUXSEND PHANTOM R POWER AUX T +48V S LEVEL PAN LEFT-BUS 2 AUX SEND 80 2.5K 12K 3 MICIN 1 3-BANDEQ D D +/-15db 1 RIGHT-BUS POST 2 AUX LINEIN PRE AUX-1 SG/OL 2 MAIN MIX 1 MAINOUT LEVEL R T LEFT-BUS S 2 3 1 LO MID HI MAIN MIX LEFT STEREOINPUTCHANNELS(3-6) LEVEL BALANCE R 3c R T 4d RIGHT-BUS S RN - 80 2.5K 12K 2b TN LEFT-BUS 3-BANDEQ C C 1a T +/-15dB + 2 5e S 3 1 LEFT(MONO) 3c R MAIN MIX RIGHT 4d RN - 80 2.5K12K RI
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8. TECHNICAL SPECIFICATION Mono input channels Microphone input electronically balanced, discrete input configuration Frequency response 10Hz to 55kHz, +/ 3dB Distortion (THD&N) 0.005% at +4dBu, 1kHz Gain range 0dB to 60dB(MIC) SNR (Signal to Noise Ratio) 115dB Line input electronically balanced Frequency response 10Hz to 55kHz, +/ 3dB Distortion (THD&N) 0.005% at +4dBu, 1kHz Sensitivity range +15dBu to 45dBu Stereo input channels Line input balanced Frequency response 10Hz to 55kHz, 3dB +/ Dist
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9. 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 purport 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
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SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi W. Road, Taichung, 401 Taiwan http://www.altomobile.com Tel: 886-4-22313737 email: info@altomobile.com Fax: 886-4-22346757 All rights reserved to ALTO Mobile. Due to continued development in response to customer feedback, product features, specifications and/or internal/external design may be changed without prior notice. No photocopying, translation or reproduction of any part of this user c manual is allowed without prior written
