Instruction/ maintenance manual of the product MAC 2.2, MAC 2.3, MAC 2.4 Alto
Go to page of 14
STEREO POWER AMPLIFIER MAC 2.2/2.3/2.4 User's Manual LTO R www .altoproaudio.com V ersion 1.0 September 2004 English.
1 SAFETY RELA TED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the pre- sence of un-insulated and dangerous voltages with- in the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.
2 PREF ACE Dear Customer: For L TO AUDIO TEAM music and audio are much more than a job, they are a passion and an obsession! By purchasing our products you become the most important member of our AUDIO TEAM.
T ABLE OF CONTENTS 1. INTRODUCTION .....................................................................................................................................4 2. FEA TURE LIST ................................................................
1. INTRODUCTION 2. FEA TURE LIST Sophisticated protecting circuit protects the machine from improper tampering Excellent frequency echo and sound quality High fidelity and low noise Balanced XLR and 1.
6. Breaker This switch works as fuse for protecting the unit from damage. When the unit is overloaded or the temperature inside the unit is too high, this pushing-button will spring up and break the power supply . The power supply will be restored with pushing the switch down again.
a. Wiring Configuration Either the 1/4" TRS (T ip-Ring-Sleeve) phone jack or the XLR servo connector can be wired in balanced and unbal- anced modes, which will be determined by the actual application status, Please wire your systems as the following examples: 4.
5.OPERA TION easily interface with most professional audio devices. Follow the configuration examples below for your particular connection. The MAC provides three operating modes with each unit: s 2.
5.2 Operate MAC in Parallel (Mono) Mode 2.2/2.3/2.4 In this mode, the channel A input signal will be output from the output connectors of both channels.
5.3 Operate MAC in Bridged Mode 2.2/2.3/2.4 In this mode, the channel A input signal will be output from the bridge output connectors. In this case, use the channel A volume control to adjust the volume, keep the volume control of channel B turned completely down (counterclockwise).
7. TECHNICAL SPECIFICA TIONS 7.1 Specifications ELECTRICAL SPECIFICATIONS INPUT SENSITIVITY INPUT IMPEDANCE FREQUENCY RESPONSE (at 10dB below rated output power) VOL TA GE GAIN DISTORTION(SMPTE-1M) S/.
7.2 Block Diagram INPUT LINK E.R 30Hz-9dB LA DIF PWR AMP OUTPUT CH-A CH-A 1.15V RMS +4dB 15Kohm BALANCED SUB WOOFER (OPTION) +/- MODE INPUT LINK E.B LA DIF PWR AMP OUTPUT CH-B CH-B AUTORAMP TURN-ON CI.
12 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain Warranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date.
NF01893-1.0 SEKAKU ELECTRON INDUSTR Y (H.K.) CO. L TD. No.1, Lane 17, Sec. 2, Han Shi West Road, T aichung, 401 T AIW AN http://www .altoproaudio.com T el:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 All rights reserved to AL TO. All features and content might be changed prior notice.
An important point after buying a device Alto MAC 2.2, MAC 2.3, MAC 2.4 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Alto MAC 2.2, MAC 2.3, MAC 2.4 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Alto MAC 2.2, MAC 2.3, MAC 2.4 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Alto MAC 2.2, MAC 2.3, MAC 2.4 you will learn all the available features of the product, as well as information on its operation. The information that you get Alto MAC 2.2, MAC 2.3, MAC 2.4 will certainly help you make a decision on the purchase.
If you already are a holder of Alto MAC 2.2, MAC 2.3, MAC 2.4, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Alto MAC 2.2, MAC 2.3, MAC 2.4.
However, one of the most important roles played by the user manual is to help in solving problems with Alto MAC 2.2, MAC 2.3, MAC 2.4. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Alto MAC 2.2, MAC 2.3, MAC 2.4 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
