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Inter-m A-60 Operation Manual

Public address amplifier
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See also: Operating Manual
A-60/120
Public Address Amplifier
A-60
PUBLIC ADDRESS AMPLIFIER
MIC 1
MIC 2
MIC 3
MIN
MAX
MIN
MAX
MIN
AUX 1
AUX 2
MAX
MIN
MAX
MIN
MAX
BASS
TREBLE
MASTER
-12dB
+12dB
-12dB
+12dB
MIN
MAX
+3
0
-3
-7
-10
PROT
-14
POWER
ON
OFF

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Summary of Contents for Inter-m A-60

  • Page 1 A-60/120 Public Address Amplifier A-60 PUBLIC ADDRESS AMPLIFIER PROT BASS TREBLE POWER MIC 1 MIC 2 MIC 3 AUX 1 AUX 2 MASTER -12dB +12dB -12dB +12dB...

  • Page 2: Table Of Contents

    Contents Contents Welcome Warning............................1 Unpacking ............................2 Installation Environment............................2 Important Safety Instructions......................2 Features ............................3 Accessories.............................3 Operation ............................3 Front Panel ............................4 Rear Panel ............................5 Connecting Speakers ........................6 Applications ............................7 Block Diagram ..........................8 Specifications ..........................9 Service Procedures............................10 Schematic .............................10 Parts List ............................10 Variations and Options .......................10 Warranty ............................10...

  • Page 3: Warning

    A personal welcome to you from the management and employees of Inter-M All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value, and we are delighted you have purchased one of our products.

  • Page 4: Unpacking

    PUBLIC ADDRESS AMPLIFIER Unpacking Although your A-60/120 is neither complicated nor difficult to operate, we recommend you take a few minutes to read this brief manual and familiarize yourself with the important information regarding product features, setup and operation. As with most electronic devices, we strongly recommend you retain the original packaging. In the unlikely event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.

  • Page 5: Features

    PUBLIC ADDRESS AMPLIFIER Features Features - HIGH POWER, LOW DISTORTION 60W (A-60) or 120W (A-120) of RMS power, with less than 1% THD. - VERSATILE AND EASY TO USE Three Mic inputs, two Aux Inputs. - PRIORITY MUTING Mic1 input mutes other inputs when in use.

  • Page 6: Front Panel

    These knobs provide continuous control of the volume of Aux Inputs 1 and 2. 6. MASTER VOLUME This knob provides continuous control of the overall volume of the A-60/120 output. 7. POWER SWITCH Pressing this switch turns the unit on, as indicated by the Power LED above the switch. Pressing it again turns the unit off.

  • Page 7: Rear Panel

    PUBLIC ADDRESS AMPLIFIER Rear Panel Rear Panel MODEL NO. A-60 OC03 OC03 PUBLIC ADDRESS AMPLIFIER www.inter-m.com MIC 3 MIC 2 MIC 1 MADE IN KOREA AC INPUT CAUTION; TO REDUCE THE RISK OF ELECTRIC SHOCK , AUX 2 AUX 1 230V 50Hz, 75 W DO N OT REMOVE COVER.

  • Page 8: Connecting Speakers

    Connecting Speakers Connecting Speakers Before connecting speakers to your A-60/120 unit, be sure to disconnect the AC power cable. Make certain that the total impedance is not less than the rated impedance indicated. For 4Ω low-impedance speakers, connect in parallel, with the positive (+) connectors to the 4Ω terminal and the negative (-) connectors to the COM terminal.

  • Page 9: Applications

    PUBLIC ADDRESS AMPLIFIER Applications Applications CASSETTE DECK CD PLAYER MODEL NO. A-60 OC03 0 2 1 PUBLIC ADDRESS AMPLIFIER www.inter-m.com MIC 3 MIC 2 MIC 1 MADE IN KOREA AC INPUT CAUTION; TO REDUCE THE RISK OF ELECTRIC SHOCK ,...

  • Page 10: Block Diagram

    PUBLIC ADDRESS AMPLIFIER Block Diagram Block Diagram A-60/120...

  • Page 11: Specifications

    PUBLIC ADDRESS AMPLIFIER Specifications .............. Specifications 0dB=0.775Vrms - ELECTRICAL Rated Output/Impedance............A-60: 15.5V/4Ω, 70V/81.6Ω, 100V/166.7Ω ....................A-120: 21.9V/4Ω, 70V/40.8Ω, 100V/83.3Ω Frequency Response (±3dB).......................80Hz~16kHz T.H.D............................Less than 1% Mic ..........................Better than 50dB Aux..........................Better than 75dB Input Sensitivity/Impedance Mic Input 1-3 ......................... -60dB/600Ω, Bal Aux 1 Input ........................

  • Page 12: Service

    To obtain specific warranty information and available service locations contact Inter-M directly(in Korea or the USA) or the authorized Inter-M Distributor for your specific country or region.
  • Page 13 Inter-M, Ltd. (Korea) began operations in 1983. Since then, Inter-M has grown to become one of the largest manufacturers of professional audio and commercial sound electronics equipment in the world. Inter-M has gained worldwide recognition for its own branded products, as well as private label manufacturing of electronics sold under other names (OEM).

This manual is also suitable for:

A-120

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