32-2054 please read this user’s guide before installing, setting up, and using your new amplifier. Www.Radioshack.Com thank you for purchasing your 40-watt pa amplifier from radioshack. It gives you the versatility and power you need in a professional sound system. Your amplifier’s wide frequency respo...
2 3 contents quick start .......................................................................................... 3 a look at your amplifier..................................................................... 6 front view................................................................................
4 5 step 5 monitor the sound source insert the ¼” (6.35 mm) plug of either mono or stereo headphones (not supplied) to the phones jack. Headphones help easily check and adjust the balance of the sound sources. 4) adjust the following controls to the desired volume and balance: mic 1, mic 2, phono/au...
6 7 rear view terminals (com, 4, 8, 16, 70v) connect speaker wires to the selected terminals. Ac in connect to a standard ac outlet using the supplied ac power cord. Dc 12v in jack power the amplifier from a 5a, 12v vehicle battery source. Gnd connect a ground wire (black or green) to avoid low-fr...
8 9 preparation placing the amplifier put your amplifier to a place with adequate ventilation. Do not put it on thick carpeting (which can restrict air flow) or near a heat source, such as a heat vent or radiator (which can cause overheating). Placing speakers speaker placement depends on your room’s s...
10 11 connections connecting speaker wires to the amplifier 1. Use a wire stripper (not supplied) to remove about half inch of the insulation from the end of the speaker wire. 2. Using a wire connector (not supplied), twist the exposed wire to secure all the wire strands. Remove the wire connector fo...
12 13 connecting four speakers in series and parallel combination 1. Group the four speakers into two pairs (a and b, c and d). Connect each pair of speakers in series: a’s positive terminal to b’s negative terminal, c’s negative terminal to d’s positive terminal. If you use all 8 speakers, the tot...
14 15 8, 2.5w speaker 8, 5w speaker 16, 1.25w speaker output side input side output side input side output side input side a a a a amplifier transformer transformer transformer troubleshooting problem cause solution no power sound sources or speakers are not properly connected. Check all connections....
16 17 specifications output power (at thd 10%, 4 load 1khz)..................................................40w total harmonic distortion (at 5 watts, 4, 1khz, with band pass filter) mic ......................................................................................................... 0.50%...
18 19 17. An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such powe...
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