User's Manual ALTO MONITOR PA/MONITOR PROCESSOR R LTO www.altoproaudio.com Version 1.
Fuse SAFETY RELATED SYMBOLS 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. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure.
PREFACE Dear Customer: Thanks for choosing LTO Monitor PA/Monitor Processor and thanks for choosing one of the results of AUDIOTEAM job and researches. LTO For our LTO 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 cooperation with some of the major brands in the world in the audio field.
TABLE OF CONTENT 1. INTRODUCTION ...................................................................................................................................4 2. FEATURES ...........................................................................................................................................4 3. ELEMENT CONTROLS.........................................................................................................................4 3.1 The Front Panel 3.2 The Rear Panel 4.
1. INTRODUCTION Congratulations on your purchasing the very powerful LTO Monitor PA Processor. It is really efficient for PA monitor. Your LTO Monitor PA Processor is based on many years of experience and is designed to provide studio engineer and sound contractor with a precise equalization. It can be used to modify the frequency "contour" of a sound, eliminate the unwanted frequencies and suppress the feedback well. For more information, please read this manual carefully. 2.
FILTER GAIN controls (5) These controls will boost or attenuate (either 6dB or 12dB) the select frequencies. When all slider potentiometers are set in center position, the frequency response is flat (no boost and attenuate). RANGE switch (6) This switch is used to choose the gain range of the filter potentiometer either +6dB or +12dB. Up for +6dB, down for +12dB. HI-PASS switch (7) To press this switch will cut the low frequencies at 40Hz (12dB per octave), and the LED (green) (8) illuminates.
1/ 10 selection switch (18) This switch is used to change the selecting range of frequency. Engage the switch ( 1), the adjustable frequency range is 40Hz- 400Hz (NOTCH 1) or 200Hz- 2kHz (NOTCH 2), and the LED (19) illuminates. Otherwise ( 10), the adjustable frequency range is 400Hz- 4kHz (NOTCH 1) or 2kHz - 20kHz (NOTCH 2). FREQUENCY control (20) This control provides with two frequency ranges. For the details, please refer to the above.
Please note the triangular markers on both sides of the fuse holder (see above figure). To change the voltage pull the fuse holder out, rotate it 180 and push it back again. The operating voltage will be that indicated by one of the two triangular markers. 3.2.2 AC Inlet (25) After the correct voltage has been set you can connect the AC plug to the unit. 3.2.3 Input Connectors (26) Either XLR or unbalanced 1/4" TRS jack input connector is used to input the signal. 3.2.
Balanced Tip Ring Sleeve TIP RING SLEEVE SLEEVE RING TIP Tip Ring Sleeve 1 2 3 1 2 3 Tip Ring Sleeve 1 2 3 Tip Ring Sleeve 1 2 3 Tip 1 2 3 TIP RING SLEEVE Unbalanced TIP RING SLEEVE Sleeve TIP SLEEVE 1 2 3 Tip SLEEVE TIP TIP SLEEVE Centre Screen Tip Sleeve Sleeve Tip Ring Sleeve Tip Ring Sleeve Tip Centre Screen SLEEVE RING TIP TIP RING SLEEVE Sleeve TIP SLEEVE Tip Ring Sleeve TIP RING SLEEVE 1 2 3 Centre Screen 1 2 3 - Insert Points Connection If you are connecting to a mixing
5. APPLICATION 5.1 Using your LTO Monitor PA Processor in a Monitor system In monitor system, how to get the pure and natural sound? How to get the sufficient gain before feedback occurs? How to eliminate the noise? Many top music engineers and performers have been searching for the solution for a long time... Fortunately, you own the LTO PA Monitor Processor now, it will help you solve the problems.
6. TECHNICAL SPECIFICATIONS AUDIO INPUT Type Active balanced XLR and 1/4" JACK Impedance Balanced: 50kOhm Unbalanced: 25kOhm Operating level +4dBu/ Maximum input level CMRR Balanced and Unbalanced: +19dBm >55dB @1kHz AUDIO OUTPUT Type XLR and 1/4" JACK Impedance Balanced: 60Ohm Unbalanced: 30Ohm Maximum output level +21dBm SYSTEM SPECIFICATIONS THD+N% Noise Frequency response 0.01% typ.
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8. 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.
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: alto@altoproaudio.com 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 2005 SEIKAKU GROUP NF 01356-1.
