Alto a 400 4 manual user
This is the 12 pages manual for alto a 400 4 manual user.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from alto a 400 4 manual user (Ocr-read)
Page 1
CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN IMPORTANT SAFETY INSTRUCTION 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. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Dispose of this product should notbeplacedinmunicipalwaste and should be separate collection. 11. 12. MovethisEquipmentonlywithacart, stand, tripod, or bracket, specified by the manufacturer, or sold with the Equipment. When a cart is used, use caution when moving the cart / equipment combination to avoid possible injury from tip-over. Permanent hearing loss may be caused by exposure to \ extremely high noise levels. The US. Government's Occupational Safety and Health Administration (OSHA) has specified the permissible exposure to noise level. These are shown in the following chart: According to OSHA, an exposure to high SPL in excess of these limits may result in the loss of heat. To avoid the potential damage of heat, it is recommended that Personnel exposed to equipment capable of generating high SPL use hearing protection while such equipment is under operation. This symbol, wherever used, alerts you to the presence of un-insulated and dangerous voltages within the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death. This symbol, wherever used, alerts you to important operating and maintenance instructions. Please read. Protective Ground TerminalAC mains (Alternating Current)Hazardous Live Terminal ON: Denotes the product is turned on. OFF: Denotes the product is turned off. The apparatus shall be connected to a mains socket outlet with a protective earthing connection. The mains plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable. CAUTION Describes precautions that should be observed to prevent damage to the product. Read this Manual carefully before operation. Keep this Manual in a safe place. Be aware of all warnings reported with this symbol. Keep this Equipment away from water and moisture. Clean it only with dry cloth. Do not use solvent or other chemicals. Do not damp or cover any cooling opening. Install the equipment only in accordance with the Manufacturer's instructions. Power Cords are designed for your safety. Do not remove Ground connections! If the plug does not fit your AC outlet, seek advice from a qualified electrician. Protect the power cord and plug from any physical stress to avoid risk of electric shock. Do not place heavy objects on the power cord. This could cause electric shock or fire. Unplug this equipment when unused for long periods of time or during a storm. Refer all service to qualified service personnel only. Do not perform any servicing other than those instructions contained within the User's Manual. 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. HOURS X DAY EXAMPLE 8 6 4 3 2 1,5 1 0,5 0,25 or lessSPL 90 92 95 97 100 102 105 110 115Small gig train Subway train High level desktop monitorsClassic music concert Rock concert
Page 2
1 1. INTRODUCTION Thank you for your purchasing of the LTO A400.4 Dragonfly digital stereo amplifier. It is just one of the many LTO products that a talented, multinational Team of Audio Engineers and Musicians have developed with their great passion for music. Your A400.4 is based on an advanced digital amplifier circuit and Switch Mode Power Supply. It is capable of 60 watt of power and it is possibly the smallest and lightest amplifier in the world with such power. Yet, it is only 1/2 rack space and 1.5U in height for a total of 3.8 Kg! Due to the amplifier efficiency of over 90% there is no need for a cooling fan and therefore your A400.4 is perfectly suitable for Studio Application as well as for amplification of compression drivers or full range speakers where a very high SPL is not demanded. Enjoy your A400.4 and make sure to read this Manual carefully before operation! 2. FEATURES Mountable in a 19" rack unit (1.5U) and 1 rack space, Digital stereo amplifier/2 Hi-fi quality for Studio applications Solid and durable, rack-mountable configuration Switchable Clip-Limiter. 4 60 Watts continuous EIAJ on 4 Ohm 4 120 Watts dynamic power on 4 Ohm 4 COMBO input sockets compatible with balanced XLR and 1/4" TRS jack Sockets for outputs Front panel LED indicators for Clipping, Limiter, Power ON and Signal Individual Channel level control Manufactured under QS9000, VDA6.1 certified management system IN THIS MANUAL: 1. INTRODUCTION.............................................................................. 2. FEATURES..................................................................................... 3. CONTROL ELEMENTS................................................................... 4. OPERATION................................................................................... 5. TECHNICAL SPECIFICATIONS......................................................... 6. WARRANTY................................................................................... 1 1 4 6 8 9