CONNECTING CAR BATTERY: - It is most important to connect the CAR BATTERY correctly to the amplifier. If wrong connections are done, the LED will not ‘light-up’ indicating the polarity joined is wrong. On the backplate of amplifier there is a Battery Strip where + 12V DC – is written. On + point of this strip, join Red wire of Battery Cord (supplied free with amplifier) and on – join black. Fix Iron Clip of Red lead on the other end of Battery Cord to RED terminal of Car battery and Black lead to GREEN terminal.

It has 1-MIKE and 1-AUX. input. Mike input is LO-Z or low impedance (200-600 ohms). The big advantage of these LO-Z stages is that it allows you to extend the length of mike wire upto 30 meters.

Other is AUX stage. Any type of sound coming from Cassette Player, CD Player, Record Player, TV, Radio, or any Musical Instrument can be amplified through this stage. Insert the output to be amplified to Aux. Input Jack on the front plate. Adjust volume through AUX. volume control.

MIKE and AUX. inputs are mixable.

MICROPHONE: - Use LO-Z microphone on mike stage. All ROXY microphones are LO-Z and match perfectly with this amplifier. Never blow in microphones. This common practice damages their sensitivity. Speak 1 / 2 / 3 instead while testing. While speaking keep the distance between mike and mouth to app. 10-15 cms.

FUSE: - For safety, the amplifier is provided with fuse in DC at the back plate. If it blows, replace it with one of correct rating 5A small.

SPEAKER CONNECTIONS: - COM 4W 8W 16W have been provided for direct connection of units / speaker to the amplifier. Use 23/36 or thicker wire for connections.

This amplifier is designed basically for use in Car / Jeep / Bus as Mobile amplifier. One can connect 1-2 Horn Speakers like our Models SUH-25, SUH-15, UHC-30, UHC-25, UHC-15 or SUH-40 to its output terminals. The speaker matching is to be done correctly as explained.

Proper Horn speakers connections to the amplifier is the key to the successful use / operation of any Public Address Equipment. For guidance, please refer to a separate sheet ‘SELECTION OF SPEAKERS AND THEIR CONNECTIONS’ attached.  Some points are briefed as under:-

1.  The output wires coming from Output Speaker Tapings of the amplifier should      not short. Firstly it will stop the sound output. Secondly, it will seriously damage      the amplifier. DC fuse will be blown off immediately, needing a replacement. Also      ensure that output wires do not short.

2.  When a number of speaker / units are to be connected, connect them suitably      to make a nett impedance i.e. the nett output of all such speaker / units      should be just two wires. One of these has to go to COM terminal & other to      4,8 or 16W.

Connect all speakers / units at the output FIRST and only after those connect the Battery lead to the Car battery terminals.